WO2017193268A1

WO2017193268A1 - Uplink data transmission method, terminal device, and network device

Info

Publication number: WO2017193268A1
Application number: PCT/CN2016/081476
Authority: WO
Inventors: 闫志宇; 官磊
Original assignee: 华为技术有限公司
Priority date: 2016-05-09
Filing date: 2016-05-09
Publication date: 2017-11-16

Abstract

Embodiments of the present invention provide an uplink data transmission method, a terminal device, and a network device. The method comprises: a terminal device receives first control information sent by a network device on a first subframe, the first control information comprising information used for indicating first time of a first uplink subframe occupied by the terminal device when the terminal device sends uplink data by means of a first carrier; the terminal device receives second control information sent by the network device on a second subframe, the second control information comprising information used for indicating second time of the first uplink subframe occupied by the terminal device when the terminal device sends the uplink data by means of the first carrier; and the terminal device sends, by means of the first subframe, uplink data in the second time of the first uplink subframe. In this way, the terminal device and other terminal devices can send data on a same uplink subframe at the same time, thereby improving the spectrum use efficiency of an unlicensed spectrum.

Description

Uplink data transmission method, terminal device and network device

Technical field

The embodiments of the present invention relate to communication technologies, and in particular, to an uplink data transmission method, a terminal device, and a network device.

Background technique

The Licensed-Assisted Access Using Long Term Evolution (LAA-LTE) system can utilize the 5 GHz unlicensed spectrum (also called unlicensed spectrum) through Carrier Aggregation (CA) technology. To extend the existing LTE service, that is, use the unlicensed spectrum to carry part of the data service in the LTE system.

In the prior art, in order to use the unlicensed spectrum together with other systems, the terminal equipment under the LAA-LTE system uses a Listen-Before-Talk (LBT) channel when transmitting data using the unlicensed spectrum. The access mechanism, that is, the terminal device evaluates all channels on the unlicensed spectrum according to the Clear Channel Assessment (CCA) mode allocated by the network device before the network device sends data according to the resources scheduled by the network device. When the evaluation determines that all channels on the unlicensed spectrum are idle, the terminal device transmits the uplink data using the unlicensed spectrum.

However, when the above LBT channel access mechanism is used to transmit uplink data on the unlicensed spectrum, the spectrum utilization rate of the unlicensed spectrum is low.

Summary of the invention

The embodiment of the present invention provides an uplink data transmission method, a terminal device, and a network device, which are used to solve the problem that the terminal device in the prior art transmits the uplink data when the uplink data is sent on the license-free spectrum by using the LBT channel access mechanism. Technical issues with low spectrum usage.

In a first aspect, an embodiment of the present invention provides an uplink data transmission method, where the method may include:

The terminal device receives the first control information that is sent by the network device in the first subframe, where the first control information is used to indicate that the terminal device occupies the first time of the first uplink subframe when sending the uplink data by using the first carrier. Information

Receiving, by the terminal device, the second control information that is sent by the network device in the second subframe, where the second control information is used to indicate that the terminal device occupies the first when sending uplink data by using the first carrier Information of a second time of the uplink subframe; the first subframe is earlier than the second subframe;

The terminal device sends uplink data in the second time of the first uplink subframe by using the first carrier.

The uplink data transmission method provided by the first aspect, after the network device sends the first DCI to the terminal device, may further send, to the terminal device, a second DCI that is adapted to be sent by other terminal devices to send uplink data in the same uplink subframe. After the terminal device receives the second DCI, the first DCI may be updated by using the second DCI, that is, the uplink data is sent by using the second DCI, so that the terminal device can be sent in the same uplink subframe simultaneously with other terminal devices. Data improves the spectrum utilization of the unlicensed spectrum.

In a second aspect, an embodiment of the present invention provides an uplink data transmission method, where the method may include:

The terminal device receives the first control information that is sent by the network device in the first subframe; the first control information includes a first idle channel evaluation CCA used to indicate that the terminal device uses the time in the first uplink subframe. information;

Receiving, by the terminal device, second control information that is sent by the network device in a second subframe, where the second control information is used to indicate that the terminal device is used in a time of the first uplink subframe Information of the second CCA; the first subframe is earlier than the second subframe;

The terminal device performs CCA in the first uplink subframe according to the information of the second CCA.

The uplink data transmission method provided by the second aspect, after the network device sends the first DCI to the terminal device, may further send, to the terminal device, a second DCI that is adapted to perform the CCA in the same uplink subframe by the other terminal device, to After the terminal device receives the second DCI, the first DCI may be updated by using the second DCI, that is, using the second DCI to perform the same or similar CCA in the same uplink subframe as the other terminal devices, so that the terminal device and other terminals are enabled. When the device obtains the CCA evaluation result as idle at the same time, the terminal device can send data in the same uplink subframe simultaneously with other terminal devices, thereby improving the spectrum utilization rate of the unlicensed spectrum.

Optionally, in a possible implementation manner of the second aspect, the terminal device, after performing the CCA in the first uplink subframe, according to the information about the second CCA, the method further includes:

Obtaining the evaluation result of the CCA;

If the evaluation result of the CCA is that the channel is idle, the terminal device is in the first uplink subframe by using the first carrier, or in a second uplink subframe adjacent to the first uplink subframe. Transmitting uplink data; the first uplink subframe is earlier than the second uplink subframe.

Optionally, in a possible implementation manner of the second aspect, the first control information further includes: a first time used to indicate that the terminal device occupies the first uplink subframe when sending the uplink data by using the first carrier The second control information further includes information for indicating that the terminal device occupies the second time of the first uplink subframe when the uplink data is sent by using the first carrier;

The method further includes: after the performing, by the terminal device, the CCA in the first uplink subframe, according to the information about the second CCA, the method further includes:

Obtaining the evaluation result of the CCA;

If the evaluation result of the CCA is that the channel is idle, the terminal device sends uplink data by using the first carrier in the second time of the first uplink subframe.

In a third aspect, an embodiment of the present invention provides an uplink data transmission method, where the method may include:

The network device sends the first control information to the terminal device in the first subframe. The first control information includes information used to indicate that the terminal device occupies the first time of the first uplink subframe when the uplink data is sent by using the first carrier. ;

Transmitting, by the network device, second control information to the terminal device in a second subframe, where the second control information is used to indicate that the terminal device occupies the first uplink subframe when transmitting uplink data by using the first carrier Two-time information; the first subframe is earlier than the second subframe;

The network device receives uplink data sent by the terminal device at a second time of the first uplink subframe.

For the beneficial effects of the uplink data transmission method provided by the foregoing third aspect, reference may be made to the beneficial effects brought by the foregoing first aspect, and details are not described herein again.

In a fourth aspect, an embodiment of the present invention provides an uplink data transmission method, where the method may include:

The network device sends the first control information to the terminal device in the first subframe; the first control information includes information used to indicate the first idle channel evaluation CCA used by the terminal device in the time of the first uplink subframe. ;

The network device sends second control information to the terminal device in a second subframe; the second control information includes a second used to indicate that the terminal device uses the time in the first uplink subframe Information of the CCA; the first subframe is earlier than the second subframe.

Optionally, in a possible implementation manner of the fourth aspect, after the network device sends the second control information to the terminal device in the second subframe, the method further includes:

The network device detects uplink data sent by the terminal device in the first uplink subframe or in a second uplink subframe adjacent to the first uplink subframe.

Optionally, in a possible implementation manner of the fourth aspect, the first control information further includes: a first time used to indicate that the terminal device occupies the first uplink subframe when the uplink data is sent by using the first carrier The second control information further includes information for indicating that the terminal device occupies the second time of the first uplink subframe when the uplink data is sent by using the first carrier;

After the network device sends the second control information to the terminal device in the second subframe, the method further includes:

The network device detects uplink data sent by the terminal device at a second time of the first uplink subframe.

The fourth aspect and the uplink data transmission method provided by each possible implementation manner of the fourth aspect can be beneficially seen in the beneficial effects of the second aspect and the second possible aspect of the second aspect, where No longer.

In a fifth aspect, an embodiment of the present invention provides an uplink data transmission method, where the method may include:

The terminal device acquires first indication information in the first control information, where the first control information is used to schedule the terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where the first indication information a state for indicating a start time of the uplink data sent by the terminal device in each uplink subframe of the second uplink subframe set, where the second uplink subframe set is the time of the first uplink subframe set a set of uplink subframes other than the first uplink subframe;

Transmitting, by the terminal device, uplink data in each uplink subframe of the second uplink subframe set according to the first indication information;

The state of the start time indicated by the first indication information is that the start time of the uplink data sent by the terminal device in the M uplink subframes in the second uplink subframe set is the first reference time, and The start time of the uplink data sent by the terminal device in the NM uplink subframes in the second uplink subframe set is a second reference time, where the first reference time and the second reference time are different, where The N is the number of uplink subframes included in the second uplink subframe set, and M is not greater than 1.

Optionally, in a possible implementation manner of the fifth aspect, the first control information is further included Instructing the terminal device to perform information of the idle channel evaluation CCA in the time of the M uplink subframes in the second uplink subframe set, where the information of performing the CCA includes performing the CCA evaluation type, and performing CCA One or more of the time range, the length of the contention window performing the CCA, and the backoff count value of the CCA.

Optionally, in a possible implementation manner of the fifth aspect, the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the second uplink a state in which the frame transmits the end time of the uplink data, where the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the terminal device sends the end of the uplink data in the second uplink subframe. The state of the time is a third reference time or a fourth reference time, the third reference time being different from the fourth reference time.

In a sixth aspect, an embodiment of the present invention provides an uplink data transmission method, where the method may include:

The terminal device acquires first indication information in the first control information, where the first control information is used to schedule the terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where the first indication information a state for instructing the terminal device to send an end time of the uplink data in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is the last in the first uplink subframe set a set of uplink subframes other than an uplink subframe;

The state of the end time indicated by the first indication information is that the end time of the terminal device transmitting the uplink data in the M uplink subframes in the second uplink subframe set is the first reference time, and the The ending time of the uplink data sent by the terminal device in the NM uplink subframes in the second uplink subframe set is a second reference time, where the first reference time and the second reference time are different, where the N For the number of uplink subframes included in the second uplink subframe set, M is not greater than 1.

Optionally, in a possible implementation manner of the sixth aspect, the first control information further includes: indicating, by the terminal device, the time of the M uplink subframes in the second uplink subframe set. The information of the CCA is performed within the information of the CCA, and the information of the CCA is performed, the time range of performing the CCA, the contention window length of the CCA, and the CSA backoff count value.

Optionally, in a possible implementation manner of the sixth aspect, the first control information is further included The second indication information is used to indicate a state in which the terminal device sends an uplink data end time in the second uplink subframe, where the second uplink subframe is the first uplink subframe. a state of an end time in which the terminal device transmits the uplink data in the second uplink subframe is a third reference time or a fourth reference time, the third reference time and the first The four reference times are different.

In a seventh aspect, an embodiment of the present invention provides an uplink data transmission method, where the method may include:

The network device determines to send the first control information to the terminal device, where the first control information includes first indication information, where the first control information is used to schedule each uplink sub-subject of the terminal device in the first uplink subframe set. The frame sends the uplink data, where the first indication information is used to indicate a state in which the terminal device sends the start time of the uplink data in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is a set of uplink subframes other than the first uplink subframe in the first uplink subframe set;

Sending, by the network device, the first control information to the terminal device;

The state of the start time indicated by the first indication information is that the start time of the uplink data sent by the terminal device in the M uplink subframes in the second uplink subframe set is the first reference time, and The start time of the uplink data sent by the terminal device in the NM uplink subframes in the second uplink subframe set is a second reference time, where the first reference time and the second reference time are different, where N is the number of uplink subframes included in the second uplink subframe set, and M is not greater than 1.

Optionally, in a possible implementation manner of the seventh aspect, the first control information further includes: indicating, by the terminal device, the time of the M uplink subframes in the second uplink subframe set. The information of the CCA is performed within the information of the CCA, and the information of the CCA is performed, the time range of performing the CCA, the contention window length of the CCA, and the CSA backoff count value.

Optionally, in a possible implementation manner of the seventh aspect, the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the second uplink a state in which the frame transmits the end time of the uplink data, where the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the terminal device sends the uplink data end time in the second uplink subframe. The state is a third reference time or a fourth reference time, the third reference time being different from the fourth reference time.

In an eighth aspect, an embodiment of the present invention provides an uplink data transmission method, where the method may include:

The network device determines to send the first control information to the terminal device, where the first control information includes first indication information, where the first control information is used to schedule each uplink sub-subject of the terminal device in the first uplink subframe set. The frame transmits the uplink data, where the first indication information is used to indicate a state in which the terminal device sends the end time of the uplink data in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is the a set of uplink subframes other than the last uplink subframe in the first uplink subframe set;

Optionally, in a possible implementation manner of the eighth aspect, the first control information further includes: indicating, by the terminal device, the time of the M uplink subframes in the second uplink subframe set. The information of the CCA is performed within the information of the CCA, and the information of the CCA is performed, the time range of performing the CCA, the contention window length of the CCA, and the CSA backoff count value.

Optionally, in a possible implementation manner of the eighth aspect, the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the second uplink a state in which the frame transmits the end time of the uplink data, where the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the terminal device sends the end of the uplink data in the second uplink subframe. The state of the time is a third reference time or a fourth reference time, the third reference time being different from the fourth reference time.

A ninth aspect, the embodiment of the present invention provides a terminal device, where the terminal device may include:

a receiving module, configured to receive first control information that is sent by the network device in the first subframe; where the first control information is used to indicate that the terminal device occupies the first uplink subframe when sending uplink data by using the first carrier Information for a time;

The receiving module is further configured to receive a second control signal sent by the network device in a second subframe The second control information includes information for indicating that the terminal device occupies the second time of the first uplink subframe when the uplink data is sent by using the first carrier; the first subframe is earlier than Said second subframe;

And a sending module, configured to send, by using the first carrier, uplink data in a second time of the first uplink subframe.

For the beneficial effects of the terminal device provided in the foregoing ninth aspect, refer to the beneficial effects brought about by the foregoing first aspect, and details are not described herein again.

The tenth aspect of the present invention provides a terminal device, where the terminal device may include:

a receiving module, configured to receive first control information that is sent by the network device in the first subframe, where the first control information includes a first idle channel used to indicate that the terminal device uses the time in the first uplink subframe Evaluate CCA information;

The receiving module is further configured to receive second control information that is sent by the network device in a second subframe, where the second control information is used to indicate that the terminal device is in the time of the first uplink subframe Information of the second CCA used; the first subframe is earlier than the second subframe;

An execution module, configured to perform CCA in the first uplink subframe according to the information about the second CCA included in the second control information received by the receiving module.

Optionally, in a possible implementation manner of the tenth aspect, the terminal device further includes:

a first acquiring module, configured to obtain, after the CCA is performed in the first uplink subframe, according to the information about the second CCA that is included in the second control information that is received by the receiving module, The results of the CCA evaluation;

a first sending module, when the evaluation result of the CCA acquired by the first acquiring module is that the channel is idle, the first carrier is in the first uplink subframe, or The second uplink subframe adjacent to an uplink subframe transmits uplink data; the first uplink subframe is earlier than the second uplink subframe.

Optionally, in a possible implementation manner of the tenth aspect, the first control information further includes: a first time used to indicate that the terminal device occupies the first uplink subframe when sending the uplink data by using the first carrier The second control information further includes information for indicating that the terminal device occupies the second time of the first uplink subframe when the uplink data is sent by using the first carrier;

The terminal device further includes:

a second acquiring module, configured to receive, according to the receiving module, the first Obtaining, by the second control information, information about the second CCA, after performing CCA in the first uplink subframe, obtaining a measurement result of the CCA;

And a second sending module, configured to send uplink data by the first carrier in a second time of the first uplink subframe, when the evaluation result of the CCA acquired by the second acquiring module is that the channel is idle.

The beneficial effects of the terminal device provided by the foregoing tenth aspect and the possible implementation manners of the tenth aspect can be seen in the beneficial effects brought by the second aspect and the possible implementation manners of the second aspect, and no longer Narration.

In an eleventh aspect, an embodiment of the present invention provides a network device, where the network device may include:

a sending module, configured to send first control information to the terminal device in the first subframe, and send second control information to the terminal device in the second subframe, where the first control information is used to indicate the terminal device The information of the first time of the first uplink subframe is occupied by the first carrier when the uplink data is sent by the first carrier; the second control information is used to indicate that the terminal device occupies the first uplink subframe when sending the uplink data by using the first carrier Information of the second time; the first subframe is earlier than the second subframe;

The receiving module is configured to receive uplink data sent by the terminal device at a second time of the first uplink subframe.

For the beneficial effects of the network device provided in the foregoing eleventh aspect, refer to the beneficial effects brought about by the foregoing first aspect, and details are not described herein again.

In a twelfth aspect, the embodiment of the present invention provides a network device, where the network device may include:

a sending module, configured to send first control information to the terminal device in the first subframe, and send second control information to the terminal device in the second subframe, where the first control information is used to indicate the terminal device The first idle channel used in the time of the first uplink subframe evaluates the information of the CCA; the second control information includes a first used to indicate that the terminal device uses the time in the first uplink subframe Information of the two CCAs; the first subframe is earlier than the second subframe.

Optionally, in a possible implementation manner of the twelfth aspect, the network device further includes:

a first detecting module, after the sending module sends the second control information to the terminal device in the second subframe, in the first uplink subframe, or in the first uplink subframe The second uplink subframe adjacent to the frame detects uplink data sent by the terminal device.

Optionally, in a possible implementation manner of the twelfth aspect, the first control information further includes: when the terminal device is configured to send uplink data by using the first carrier, occupying the first uplink subframe. The first time information, the second control information further includes information for indicating that the terminal device occupies the second time of the first uplink subframe when the uplink data is sent by using the first carrier;

The network device further includes:

a second detecting module, configured to detect, after the sending module sends the second control information to the terminal device in the second subframe, the second terminal detects the sending of the terminal device Upstream data.

The beneficial effects of the network device provided by the twelfth aspect and the possible implementation manners of the twelfth aspect can be seen in the beneficial effects of the second aspect and the possible implementation manners of the second aspect, where No longer.

A thirteenth aspect, the embodiment of the present invention provides a terminal device, where the terminal device may include:

An acquiring module, configured to acquire first indication information in the first control information, where the first control information is used to schedule the terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where the An indication information is used to indicate a state in which the terminal device sends the start time of the uplink data in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is in the first uplink subframe set. a set of uplink subframes other than the first uplink subframe in time;

a sending module, configured to send uplink data in each uplink subframe of the second uplink subframe set according to the first indication information in the first control information acquired by the acquiring module;

Optionally, in a possible implementation manner of the thirteenth aspect, the first control information further includes: indicating, by the terminal device, the M uplink subframes in the second uplink subframe set The information of the CCA is performed in the time period, and the information of the CCA is executed, including one of the evaluation type of performing the CCA, the time range of performing the CCA, the length of the contention window of the CCA, and the backoff count value of the CCA.

Optionally, in a possible implementation manner of the thirteenth aspect, the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is on the second a state in which the downlink subframe transmits the end time of the uplink data, the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the terminal device sends the uplink data in the second uplink subframe. The state of the end time is a third reference time or a fourth reference time, the third reference time being different from the fourth reference time.

In a fourteenth aspect, the embodiment of the present invention provides a terminal device, where the terminal device may include:

An acquiring module, configured to acquire first indication information in the first control information, where the first control information is used to schedule the terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where the An indication information is used to indicate a state in which the terminal device sends an uplink data end time in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is in the first uplink subframe set. a set of uplink subframes other than the last uplink subframe in time;

Optionally, in a possible implementation manner of the fourteenth aspect, the first control information further includes: indicating, by the terminal device, the M uplink subframes in the second uplink subframe set The information of the CCA is performed in the time period, and the information of the CCA is executed, including one of the evaluation type of performing the CCA, the time range of performing the CCA, the length of the contention window of the CCA, and the backoff count value of the CCA.

Optionally, in a possible implementation manner of the fourteenth aspect, the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the second uplink a state in which the subframe transmits the end time of the uplink data, where the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the terminal device sends the uplink data in the second uplink subframe. The state of the end time is a third reference time or a fourth reference time, the third reference time being different from the fourth reference time.

In a fifteenth aspect, the embodiment of the present invention provides a network device, where the network device may include:

a determining module, configured to send the first control information to the terminal device, where the first control information includes first indication information, where the first control information is used to schedule the terminal device in the first uplink subframe set Each of the uplink subframes sends uplink data, where the first indication information is used to indicate a state in which the terminal device sends the start time of the uplink data in each uplink subframe in the second uplink subframe set, and the second uplink subframe The set is a set of uplink subframes other than the first uplink subframe in the first uplink subframe set;

a sending module, configured to send the first control information to the terminal device;

Optionally, in a possible implementation manner of the fifteenth aspect, the first control information further includes: indicating, by the terminal device, the M uplink subframes in the second uplink subframe set The information of the CCA is performed in the time period, and the information of the CCA is executed, including one of the evaluation type of performing the CCA, the time range of performing the CCA, the length of the contention window of the CCA, and the backoff count value of the CCA.

Optionally, in a possible implementation manner of the fifteenth aspect, the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the second uplink a state in which the subframe transmits the end time of the uplink data, where the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the terminal device sends the uplink data end time in the second uplink subframe. The state of the third reference time or the fourth reference time is different, and the third reference time and the fourth reference time are different.

In a sixteenth aspect, the embodiment of the present invention provides a network device, where the network device may include:

a determining module, configured to send the first control information to the terminal device, where the first control information includes first indication information, where the first control information is used to schedule the terminal device in the first uplink subframe set Each of the uplink subframes is configured to send uplink data, where the first indication information is used to indicate a state in which the terminal device sends an uplink data end time in each uplink subframe in the second uplink subframe set, where the second uplink subframe set The last uplink subframe in the first uplink subframe set except time a set of uplink subframes other than the frame;

Optionally, in a possible implementation manner of the sixteenth aspect, the first control information further includes: indicating, by the terminal device, the M uplink subframes in the second uplink subframe set The information of the CCA is performed in the time period, and the information of the CCA is executed, including one of the evaluation type of performing the CCA, the time range of performing the CCA, the length of the contention window of the CCA, and the backoff count value of the CCA.

Optionally, in a possible implementation manner of the sixteenth aspect, the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the second uplink a state in which the subframe transmits the end time of the uplink data, where the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the terminal device sends the uplink data in the second uplink subframe. The state of the end time is a third reference time or a fourth reference time, the third reference time being different from the fourth reference time.

In a seventeenth aspect, the embodiment of the present invention provides a terminal device, where the terminal device may include:

a receiver, configured to receive first control information that is sent by the network device in the first subframe; where the first control information is used to indicate that the terminal device occupies the first uplink subframe when sending uplink data by using the first carrier Information for a time;

The receiver is further configured to receive second control information that is sent by the network device in a second subframe, where the second control information is used to indicate that the terminal device is used when sending uplink data by using the first carrier. Information of the second time of the first uplink subframe; the first subframe is earlier than the second subframe;

And a transmitter, configured to send, by using the first carrier, uplink data in a second time of the first uplink subframe.

The terminal device provided in the above seventeenth aspect can be beneficially seen in the first aspect. The beneficial effects brought about will not be described here.

The eighteenth aspect, the embodiment of the present invention provides a terminal device, where the terminal device may include:

a receiver, configured to receive first control information that is sent by the network device in the first subframe; the first control information includes a first idle channel used to indicate that the terminal device uses the time in the first uplink subframe Evaluate CCA information;

The receiver is further configured to receive second control information that is sent by the network device in a second subframe, where the second control information is used to indicate that the terminal device is in the time of the first uplink subframe Information of the second CCA used; the first subframe is earlier than the second subframe;

And a processor, configured to perform CCA in the first uplink subframe according to the information about the second CCA included in the second control information received by the receiver.

Optionally, in a possible implementation manner of the eighteenth aspect, the terminal device further includes: a transmitter;

The processor is further configured to obtain the CCA after performing CCA in the first uplink subframe according to the information about the second CCA included in the second control information received by the receiver. Evaluation results;

The transmitter, when the evaluation result of the CCA acquired by the processor is that the channel is idle, passing the first carrier in the first uplink subframe, or in the first uplink The second uplink subframe adjacent to the subframe transmits uplink data; the first uplink subframe is earlier than the second uplink subframe.

Optionally, in a possible implementation manner of the eighteenth aspect, the first control information further includes: a first indicator for occupying the first uplink subframe when the terminal device sends the uplink data by using the first carrier The information of the time, the second control information further includes information for indicating that the terminal device occupies the second time of the first uplink subframe when the uplink data is sent by using the first carrier;

The terminal device further includes: a transmitter;

The transmitter is configured to send uplink data by using the first carrier in a second time of the first uplink subframe when the evaluation result of the CCA acquired by the processor is that the channel is idle.

The terminal device provided by the above eighteenth aspect and each possible implementation manner of the eighteenth aspect For the beneficial effects, reference may be made to the beneficial effects brought about by the second aspect and the possible implementation manners of the second aspect, and details are not described herein again.

In a nineteenth aspect, the embodiment of the present invention provides a network device, where the network device may include:

a transmitter, configured to send first control information to the terminal device in the first subframe, and send second control information to the terminal device in the second subframe, where the first control information is used to indicate the terminal device The information of the first time of the first uplink subframe is occupied by the first carrier when the uplink data is sent by the first carrier; the second control information is used to indicate that the terminal device occupies the first uplink subframe when sending the uplink data by using the first carrier Information of the second time; the first subframe is earlier than the second subframe;

The receiver is configured to receive uplink data sent by the terminal device at a second time of the first uplink subframe.

For the beneficial effects of the network device provided in the above-mentioned nineteenth aspect, reference may be made to the beneficial effects brought about by the foregoing first aspect, and details are not described herein again.

In a twentieth aspect, the embodiment of the present invention provides a network device, where the network device may include:

a transmitter, configured to send first control information to the terminal device in the first subframe, and send second control information to the terminal device in the second subframe, where the first control information is used to indicate the terminal device The first idle channel used in the time of the first uplink subframe evaluates the information of the CCA; the second control information includes a first used to indicate that the terminal device uses the time in the first uplink subframe Information of the two CCAs; the first subframe is earlier than the second subframe.

Optionally, in a possible implementation manner of the twentieth aspect, the network device further includes:

a receiver, after the transmitter sends the second control information to the terminal device in the second subframe, in the first uplink subframe, or in the first uplink subframe The second uplink subframe of the neighbor detects the uplink data sent by the terminal device.

Optionally, in a possible implementation manner of the twentieth aspect, the first control information further includes: a first to occupy the first uplink subframe when the terminal device sends uplink data by using the first carrier The information of the time, the second control information further includes information for indicating that the terminal device occupies the second time of the first uplink subframe when the uplink data is sent by using the first carrier;

The network device further includes:

a receiver, configured to detect uplink data sent by the terminal device at a second time of the first uplink subframe after the transmitter sends the second control information to the terminal device in the second subframe .

The beneficial effects of the network device provided by the foregoing twentieth aspect and the possible implementation manners of the twentieth aspect can be seen in the beneficial effects of the second aspect and the possible implementation manners of the second aspect, where No longer.

Combining the above first aspect and each possible embodiment of the first aspect, the second aspect, and the possible possible embodiments of the second aspect, the third aspect, and the possible embodiments, the fourth aspect, and the fourth aspect of the third aspect Various possible implementations of aspects, ninth and ninth aspects of each possible implementation, tenth and tenth aspects of each possible implementation, eleventh and eleventh aspects of each possible implementation Aspects, the twelfth aspect, and the possible embodiments of the twelfth aspect, the seventeenth aspect, and the possible embodiments of the seventeenth aspect, the eighteenth aspect, and the possible embodiments of the eighteenth aspect, The nineteenth aspect, and the possible implementation manner of the ninth aspect, the twentieth aspect, and the possible implementation manner of the twentieth aspect, the first subframe is a first downlink subframe or a first special subframe a frame, where the second subframe is a second downlink subframe or a second special subframe.

Combining the second aspect and the possible embodiments of the second aspect, the fourth aspect, and the possible embodiments of the fourth aspect, the tenth aspect, and the possible embodiments of the tenth aspect, the twelfth aspect, and the The possible implementation manners of the twelve aspects, the eighteenth aspect, and the possible implementation manners of the eighteenth aspect, the twentieth aspect, and the possible implementation manners of the twentieth aspect, the first CCA information and The information of the second CCA includes: one or more of the indication information of the current CCA, the evaluation type of the current CCA, the execution time of the current CCA, the competition window length of the current CCA, and the backoff count value of the current CCA. One.

A twenty-first aspect, the embodiment of the present invention provides a terminal device, where the terminal device may include:

a processor, configured to acquire first indication information in the first control information, where the first control information is used to schedule the terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where An indication information is used to indicate a state in which the terminal device sends the start time of the uplink data in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is in the first uplink subframe set. a set of uplink subframes other than the first uplink subframe in time;

a transmitter, configured to send uplink data in each uplink subframe of the second uplink subframe set according to the first indication information in the first control information that is acquired by the processor;

The state of the start time indicated by the first indication information is that the start time of the uplink data sent by the terminal device in the M uplink subframes in the second uplink subframe set is the first reference time. And the start time of the uplink data sent by the terminal device in the NM uplink subframes in the second uplink subframe set is a second reference time, where the first reference time and the second reference time are different The N is the number of uplink subframes included in the second uplink subframe set, and M is not greater than 1.

Optionally, in a possible implementation manner of the twenty-first aspect, the first control information further includes: indicating, by the terminal device, the M uplink subframes in the second uplink subframe set The information of the CCA is performed in the time period, and the information of the CCA is executed, including the type of the CCA, the time range for performing the CCA, the length of the contention window for performing the CCA, and one or more of the backoff count values of the CCA. .

Optionally, in a possible implementation manner of the twenty-first aspect, the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the second a state in which the uplink subframe transmits the end time of the uplink data, where the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the terminal device sends the uplink data in the second uplink subframe. The state of the end time is a third reference time or a fourth reference time, the third reference time being different from the fourth reference time.

A twenty-second aspect, the embodiment of the present invention provides a terminal device, where the terminal device may include:

a processor, configured to acquire first indication information in the first control information, where the first control information is used to schedule the terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where An indication information is used to indicate a state in which the terminal device sends an uplink data end time in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is in the first uplink subframe set. a set of uplink subframes other than the last uplink subframe in time;

Optionally, in a possible implementation manner of the twenty-second aspect, the first control information The method further includes: instructing the terminal device to perform information of the idle channel evaluation CCA in the time of the M uplink subframes in the second uplink subframe set, where the information about performing the CCA includes performing the evaluation type and execution of the CCA. One or more of the time range of the CCA, the length of the contention window performing the CCA, and the backoff count value of the CCA.

Optionally, in a possible implementation manner of the twenty-second aspect, the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the second a state in which the uplink subframe transmits the end time of the uplink data, where the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the terminal device sends the uplink data in the second uplink subframe. The state of the end time is a third reference time or a fourth reference time, the third reference time being different from the fourth reference time.

In a twenty-third aspect, the embodiment of the present invention provides a network device, where the network device may include:

a processor, configured to send the first control information to the terminal device, where the first control information includes first indication information, where the first control information is used to schedule the terminal device in the first uplink subframe set Each of the uplink subframes sends uplink data, where the first indication information is used to indicate a state in which the terminal device sends the start time of the uplink data in each uplink subframe in the second uplink subframe set, and the second uplink subframe The set is a set of uplink subframes other than the first uplink subframe in the first uplink subframe set;

a transmitter, configured to send the first control information to the terminal device;

Optionally, in a possible implementation manner of the twenty-third aspect, the first control information further includes: indicating, by the terminal device, the M uplink subframes in the second uplink subframe set The information of the CCA is performed in the time period, and the information of the CCA is executed, including the type of the CCA, the time range for performing the CCA, the length of the contention window for performing the CCA, and one or more of the backoff count values of the CCA. .

Optionally, in a possible implementation manner of the twenty-third aspect, the first control information And the second indication information is used to indicate a state in which the terminal device sends an uplink data end time in the second uplink subframe, where the second uplink subframe is the first uplink The last uplink subframe in the subframe set, the state in which the terminal device sends the end time of the uplink data in the second uplink subframe is the third reference time or the fourth reference time, the third reference time and the fourth The reference time is different.

In a twenty-fourth aspect, the embodiment of the present invention provides a network device, where the network device may include:

a processor, configured to send the first control information to the terminal device, where the first control information includes first indication information, where the first control information is used to schedule the terminal device in the first uplink subframe set Each of the uplink subframes is configured to send uplink data, where the first indication information is used to indicate a state in which the terminal device sends an uplink data end time in each uplink subframe in the second uplink subframe set, where the second uplink subframe set And a set of uplink subframes other than the last uplink subframe in the first uplink subframe set;

Optionally, in a possible implementation manner of the twenty-fourth aspect, the first control information further includes: indicating, by the terminal device, the M uplink subframes in the second uplink subframe set The information of the CCA is performed in the time period, and the information of the CCA is executed, including the type of the CCA, the time range for performing the CCA, the length of the contention window for performing the CCA, and one or more of the backoff count values of the CCA. .

Optionally, in a possible implementation manner of the twenty-fourth aspect, the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the second a state in which the uplink subframe transmits the end time of the uplink data, where the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the terminal device sends the uplink data in the second uplink subframe. The state of the end time is a third reference time or a fourth reference time, the third reference time being different from the fourth reference time.

The uplink data transmission method, the terminal device, and the network device provided by the embodiment of the present invention, after the network device sends the first DCI to the terminal device, may also send the uplink device to the terminal device to transmit the uplink in the same uplink subframe. The second DCI of the data, so that after receiving the second DCI, the terminal device may update the first DCI by using the second DCI, that is, send the uplink data by using the second DCI, so that the terminal device can be simultaneously with other terminal devices. Transmitting data in the same uplink subframe improves the spectrum usage of the unlicensed spectrum.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

FIG. 1 is a signaling flowchart of Embodiment 1 of an uplink data transmission method according to an embodiment of the present disclosure;

2 is a signaling flowchart of Embodiment 2 of an uplink data transmission method according to an embodiment of the present invention;

FIG. 3 is a signaling flowchart of Embodiment 3 of an uplink data transmission method according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of Embodiment 1 of first control information according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of Embodiment 2 of first control information according to an embodiment of the present disclosure;

FIG. 6 is a signaling flowchart of Embodiment 4 of an uplink data transmission method according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of Embodiment 3 of first control information according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of Embodiment 4 of first control information according to an embodiment of the present disclosure;

FIG. 9 is a signaling flowchart of Embodiment 5 of an uplink data transmission method according to an embodiment of the present disclosure;

FIG. 10 is a signaling flowchart of Embodiment 6 of an uplink data transmission method according to an embodiment of the present disclosure;

FIG. 11 is a signaling flowchart of Embodiment 7 of an uplink data transmission method according to an embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of Embodiment 1 of a terminal device according to an embodiment of the present disclosure;

FIG. 13 is a schematic structural diagram of Embodiment 2 of a terminal device according to an embodiment of the present disclosure;

FIG. 14 is a schematic structural diagram of Embodiment 3 of a terminal device according to an embodiment of the present disclosure;

FIG. 15 is a schematic structural diagram of Embodiment 4 of a terminal device according to an embodiment of the present disclosure;

FIG. 16 is a schematic structural diagram of Embodiment 1 of a network device according to an embodiment of the present disclosure;

FIG. 17 is a schematic structural diagram of Embodiment 2 of a network device according to an embodiment of the present disclosure;

FIG. 18 is a schematic structural diagram of Embodiment 3 of a network device according to an embodiment of the present disclosure;

FIG. 19 is a schematic structural diagram of Embodiment 5 of a terminal device according to an embodiment of the present disclosure;

FIG. 20 is a schematic structural diagram of Embodiment 6 of a terminal device according to an embodiment of the present disclosure;

FIG. 21 is a schematic structural diagram of Embodiment 4 of a network device according to an embodiment of the present disclosure;

FIG. 22 is a schematic structural diagram of Embodiment 5 of a network device according to an embodiment of the present disclosure;

FIG. 23 is a schematic structural diagram of Embodiment 7 of a terminal device according to an embodiment of the present disclosure;

FIG. 24 is a schematic structural diagram of Embodiment 8 of a terminal device according to an embodiment of the present disclosure;

FIG. 25 is a schematic structural diagram of Embodiment 9 of a terminal device according to an embodiment of the present disclosure;

FIG. 26 is a schematic structural diagram of Embodiment 6 of a network device according to an embodiment of the present disclosure;

FIG. 27 is a schematic structural diagram of Embodiment 7 of a network device according to an embodiment of the present disclosure;

FIG. 28 is a schematic structural diagram of Embodiment 10 of a terminal device according to an embodiment of the present disclosure;

FIG. 29 is a schematic structural diagram of Embodiment 11 of a terminal device according to an embodiment of the present disclosure;

FIG. 30 is a schematic structural diagram of Embodiment 8 of a network device according to an embodiment of the present disclosure;

FIG. 31 is a schematic structural diagram of Embodiment 9 of a network device according to an embodiment of the present disclosure;

FIG. 32 is a structural block diagram of a terminal device when the terminal device is a mobile phone according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The terminal device according to the embodiment of the present invention may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem. The wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal. For example, it may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with a wireless access network. For example, personal communication service (PCS, Personal Communication Service) telephone, cordless telephone, Session Initiation Protocol (SIP) telephone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA, Personal Digital Assistant), etc. . Wireless end The terminal can also be called a system, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, an Access Point, and a remote. Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment.

The network device involved in the embodiments of the present invention may be a base station, or an access point, or may refer to a device in the access network that communicates with the wireless terminal through one or more sectors on the air interface. The base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network. The base station can also coordinate attribute management of the air interface. For example, the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station (eNB or e-NodeB, evolutional Node B) in LTE. This application is not limited.

The uplink data transmission method provided by the embodiment of the present invention is applicable to a scenario in which a terminal device in any wireless communication system uses an LBT channel access mechanism to send uplink data on a license-free spectrum. For example, the terminal device in the LTE system uses the LBT channel access mechanism to send uplink data on the unlicensed spectrum. Specifically,

In the prior art, the network device in the LTE system sends the control information (Downlink Control Information, DCI for short) to the terminal device when the scheduling terminal device uses the LBT channel access mechanism to send uplink data on the unlicensed spectrum. The DCI instructs the terminal device to send the uplink data in the at least one uplink subframe through the carrier of the unlicensed spectrum, and instruct the terminal device to be the earliest one of the at least one uplink subframe in the first uplink subframe of the at least one uplink subframe. The subframe is executed to evaluate whether the channel of the unlicensed spectrum is idle, that is, the terminal device is instructed to transmit the uplink data by using the LBT channel access mechanism.

Exemplarily, the first network device, by using the first DCI, by the first network device, sends the first carrier in the unlicensed spectrum in the first uplink subframe, the second uplink subframe, the third uplink subframe, and the fourth uplink subframe. For example, after performing the CCA in the first uplink subframe, the first terminal device performs CCA in the first uplink subframe after receiving the first DCI sent by the network device, so as to evaluate the license-free. Whether all channels of the spectrum are idle. If the CCA evaluation result is that all channels of the unlicensed spectrum are idle, the first terminal device is allowed to use the unlicensed spectrum. When the uplink data is sent, the first terminal device transmits the remaining time after the end of the CCA in the first uplink subframe by using the first carrier, and all times of the second uplink subframe, the third uplink subframe, and the fourth uplink subframe. Upstream data.

If the network device further transmits the uplink data in the third uplink subframe through the first carrier of the unlicensed spectrum through the second DCI, and performs CCA in the third uplink subframe, the second terminal device receives the network. After the second DCI sent by the device, CCA is performed in the third uplink subframe to evaluate whether all channels of the unlicensed spectrum are idle. At this time, since the first terminal device is passing the first carrier of the unlicensed spectrum at the third The uplink subframe transmits uplink data, that is, the channel corresponding to the first carrier of the unlicensed spectrum is in a busy state, so after the second terminal device performs CCA, the obtained CCA evaluation result is that the channel of the unlicensed spectrum is busy. Therefore, the second terminal device cannot send the uplink data in the third uplink subframe through the first carrier of the unlicensed spectrum, so that the second terminal device cannot be in the same uplink subframe as the first terminal device by using frequency division multiplexing ( The third uplink subframe transmits uplink data, and the spectrum utilization rate of the unlicensed spectrum is low.

The uplink data transmission method according to the embodiment of the present invention is to solve the problem that the spectrum utilization rate of the unlicensed spectrum is low when the terminal equipment in the prior art transmits the uplink data on the unlicensed spectrum by using the LBT channel access mechanism. technical problem.

The technical solutions of the present invention and the technical solutions of the present invention are described in detail below with reference to specific embodiments. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in some embodiments.

FIG. 1 is a signaling flowchart of Embodiment 1 of an uplink data transmission method according to an embodiment of the present invention. The first embodiment relates to a specific process of updating the first DCI by using the second DCI after the first terminal device receives the first DCI and the second DCI sent by the network device. In this embodiment, the first DCI and the second DCI include different times when the first terminal device uses the first carrier to send the uplink data, and the first uplink subframe occupies different time. As shown in FIG. 1, the method may include:

S101. The network device sends the first DCI to the first terminal device in the first subframe.

The first DCI includes information for indicating a first time that the first terminal device occupies the first uplink subframe when the uplink data is sent by using the first carrier.

Specifically, when the foregoing network device schedules the first terminal device to use the LBT channel access mechanism to send uplink data on the unlicensed spectrum, the network device may be in the first subframe to the first terminal. The device sends the first DCI, where the first subframe mentioned herein may be the first downlink subframe or the first special subframe.

Optionally, in this embodiment, the foregoing first DCI further includes information for instructing the first terminal device to send uplink data in the N uplink subframes by using the first carrier of the unlicensed spectrum, where N≥1. If N=1, the first DCI includes information for instructing the first terminal device to send uplink data in the first uplink subframe. If N>1, the first DCI includes information for instructing the first terminal device to send uplink data in the first uplink subframe set, where the first uplink subframe set includes the first uplink subframe. A preferred application scenario of the present invention is N>1. Optionally, the first DCI further includes: indicating, by the first terminal device, the first uplink subframe in time in the one or more uplink subframes (that is, one of the earliest subframes in the one or more uplink subframes) The CCA is executed to measure whether all channels of the unlicensed spectrum are idle, that is, the first terminal device is instructed to use the LBT channel access mechanism to transmit uplink data. At the same time, the first DCI may further include information for indicating that the first terminal device occupies the first time of the first uplink subframe when the uplink data is sent by using the first carrier, where the information of the first time may be The start time of the first time may also be the end time of the first time, and may also be the start time and the end time of the first time, etc., of course, the first DCI may further include that the first terminal device sends the uplink through the first carrier. The time when the data occupies other uplink subframes of the one or more uplink subframes is not limited herein. It should be noted that the foregoing first DCI may further include other information for indicating that the first terminal device sends uplink data, for example, resource allocation information, an adjustment coding manner, and the like, which are not repeatedly described herein.

Exemplarily, the first network device that schedules the first terminal device to pass the first carrier of the unlicensed spectrum by using the first DCI in the first uplink subframe, the second uplink subframe, the third uplink subframe, and the fourth The uplink subframe is sent by the uplink subframe, and the CCA is performed in the first uplink subframe. The first uplink subframe in this embodiment may be the third uplink subframe, and the first time is The first start time is an example. The first time that the first terminal device included in the first DCI sends the uplink data by using the first carrier, the information of the first time of the first uplink subframe may be the first of the third uplink subframe. The starting point of the symbols (in this case, the end time at which the first terminal device transmits the uplink data in the third uplink subframe is the last symbol of the third uplink subframe). Or, for example, the information of the first time is the start time and the end time of the first time. Optionally, the first time that the first terminal device occupies the first uplink subframe when the first terminal device sends the uplink data by using the first carrier may be 1 to 14 times of the first uplink subframe in time. Symbol, or The second to the 14th symbols of the first uplink subframe in time; or the first to the 13th symbols of the first uplink subframe in time, or the second to the first uplink subframe in time. 13 symbols. The terminal device can determine the range of the first time by using the information of the first time.

S102. The first terminal device receives the first DCI.

S103. The network device sends the second DCI to the first terminal device in the second subframe.

The second DCI includes information for indicating a second time that the first terminal device occupies the first uplink subframe when the uplink data is sent by using the first carrier; the first subframe is earlier than the second subframe.

Specifically, after the network device sends the first DCI to the first terminal device, the network device schedules the second terminal device to send the uplink data on the other frequency resources of the first uplink subframe by using the first carrier of the unlicensed spectrum. And performing the CCA in the first uplink subframe. In this case, if the first terminal device included in the first DCI sent by the network device is used by the first terminal device, the first uplink device is used when the uplink data is sent by using the first carrier. The first time of the frame overlaps with the time that the second terminal device performs CCA in the first uplink subframe, and the first terminal device sends data in the first uplink subframe according to the first DCI, and the second terminal device When the CCA is performed in the first uplink subframe according to the scheduling of the network device, the second terminal device is in the process of performing the CCA, and the first terminal device is sending the uplink data, so that the CCA evaluation result obtained by the second terminal device is obtained. In order to avoid the busy channel of the licensed spectrum, the second terminal device cannot send the uplink data in the first uplink subframe by using the first carrier.

Therefore, in order to avoid the occurrence of the foregoing situation, the network device sends the second DCI to the first terminal device in the second subframe before the first terminal device sends the data in the first uplink subframe by using the first DCI, to change the In the prior art, in the prior art, the network device does not send the first DCI to the first terminal device for updating the first DCI. The second DCI. The time when the first terminal device transmits data in the first uplink subframe does not overlap with the time when the second terminal device performs CCA in the first uplink subframe, that is, the second When the terminal device performs CCA in the first uplink subframe, the first terminal device does not send data in the first uplink subframe, so that the CCA evaluation result obtained by the second terminal device is that all channels of the unlicensed spectrum are idle. In a manner, the first terminal device and the second terminal device can send uplink data in different first frequency subframes through different frequency resources, even if the first terminal device and the second terminal device are in the first uplink by using frequency division multiplexing. The subframe transmits uplink data, which improves the spectrum utilization rate of the unlicensed spectrum. among them, The second subframe occupied by the network device when the second DCI is sent to the first terminal device may be the second downlink subframe or the second special subframe, and the second subframe is later than the first subframe in time. The frame is such that the first terminal device can distinguish which is the first DCI and which is the second DCI.

The second DCI includes information for indicating a second time that the first terminal device occupies the first uplink subframe when the uplink data is sent by the first carrier, where the information of the second time is occupied by the first uplink subframe. The start time of the second time is also the end time of the second time occupying the first uplink subframe, and may also be the start time and the end time of the second time occupying the first uplink subframe. The terminal device can determine the range of the second time by using the information of the second time. It should be noted that the first time indicated by the first DCI is different from the second time indicated by the second DCI.

Optionally, in this embodiment, the foregoing second DCI further includes information for instructing the first terminal device to send uplink data in the M uplink subframes by using the first carrier of the unlicensed spectrum, where M≥1. If M=1, the second DCI includes information for instructing the first terminal device to send uplink data in the first uplink subframe. If M>1, the second DCI includes information for instructing the first terminal device to send uplink data in the second uplink subframe set, where the second uplink subframe set includes the first uplink subframe. A preferred application scenario of the present invention is M>1. Here, M and the first terminal device indicated by the first DCI may be equal or not equal in the information of transmitting the uplink data in the N uplink subframes through the first carrier of the unlicensed spectrum.

With continued reference to the above example of S101, it is assumed that the network device schedules the second terminal device to perform CCA on the first symbol of the third uplink subframe and transmits uplink data in the second symbol of the third uplink subframe. The information of the second time that is used by the second DCI to indicate that the first terminal device occupies the first uplink subframe when the uplink data is sent by using the first carrier may be started by the terminal device in the second symbol of the third uplink subframe. Sending data (in this case, the default time at which the first terminal device transmits uplink data in the third uplink subframe is the last symbol of the third uplink subframe), so that the second terminal device is in the third When the first symbol of the uplink subframe performs CCA, the first terminal device does not send uplink data in the first symbol of the third uplink subframe, so that the CCA evaluation result obtained by the second terminal device is unlicensed. All the channels of the spectrum are idle. In this way, the first terminal device and the second terminal device can simultaneously send uplink data in the first uplink subframe through different frequency resources, even if the first terminal device The second terminal device transmits an uplink frame in the first uplink sub-data by way of a frequency division multiplexing, improved utilization of spectrum unlicensed spectrum.

Optionally, in another implementation manner of the present invention, the network device sends the first DCI and the second DCI to the terminal device by using the first subframe and the second subframe, where the first subframe and the second subframe are Different subframes, so that the terminal device can determine which one is the first DCI and which one is the second DCI, and the network device can also send the first control information to the terminal device through the common control information, and separately The manner of transmitting the second control information to the terminal device, so that the terminal device distinguishes which is the first DCI and which is the second DCI.

S104. The first terminal device receives the second DCI.

S105. The first terminal device sends uplink data by using the first carrier in a second time of the first uplink subframe.

Specifically, after the first terminal device receives the second DCI, the first DCI may be updated by using the second DCI, so that the first terminal device may be according to the first DCI. Optionally, the first terminal device further sends uplink data by using the first carrier in other uplink subframes except the first uplink subframe. According to the second DCI, the uplink data is sent by the first carrier in the second time of the first uplink subframe, so that when the second terminal device performs CCA in the first uplink subframe, the obtained CCA evaluation result is an unlicensed spectrum. All the channels are idle. In this way, the first terminal device and the second terminal device can simultaneously send uplink data in the first uplink subframe through different frequency resources, even if the first terminal device and the second terminal device pass the frequency division. The method used to transmit uplink data in the first uplink subframe improves the spectrum utilization rate of the unlicensed spectrum.

With continued reference to the above example of S103, the first terminal device performs CCA in the first uplink subframe according to the first DCI, and in the first uplink subframe when all the channels of the unlicensed spectrum are idle when the CCA evaluation result is idle. The remaining time after the completion of the CCA, the all time of the second uplink subframe, and the time of the fourth uplink subframe are transmitted, and the second symbol is sent in the second symbol of the third uplink subframe according to the second DCI. Data, such that when the second terminal device performs CCA in the first symbol of the third uplink subframe according to scheduling of the network device, the first terminal device does not be in the first symbol of the third uplink subframe. The uplink data is sent, so that the CCA evaluation result obtained by the second terminal device is that all the channels of the unlicensed spectrum are idle. In this manner, the first terminal device and the second terminal device can be simultaneously different in the first uplink subframe. The frequency resource transmits the uplink data, and even if the first terminal device and the second terminal device transmit the uplink data in the first uplink subframe by means of frequency division multiplexing, the spectrum of the unlicensed spectrum is improved. Rate.

S106. The network device receives the uplink number sent by the terminal device at the second time of the first uplink subframe. according to.

The uplink data transmission method provided by the embodiment of the present invention, after the network device sends the first DCI to the terminal device, may further send, to the terminal device, a second DCI that is adapted to be sent by other terminal devices to send uplink data in the same uplink subframe. After the terminal device receives the second DCI, the first DCI may be updated by using the second DCI, that is, the uplink data is sent by using the second DCI, so that the terminal device can be sent in the same uplink subframe simultaneously with other terminal devices. Data improves the spectrum utilization of the unlicensed spectrum.

FIG. 2 is a signaling flowchart of Embodiment 2 of an uplink data transmission method according to an embodiment of the present invention. The second embodiment relates to a specific process of updating the first DCI by using the second DCI after the first terminal device receives the first DCI and the second DCI sent by the network device. In this embodiment, the first DCI and the second DCI include information of different CCAs used by the first terminal device in the first uplink subframe.

Before introducing this embodiment, a brief introduction to the existing CCA is needed. Currently, the existing CCA is divided into the following two types:

The first evaluation type: the terminal device performs single-slot CCA listening, and the time slot may be, for example, 25 us or 34 us. In specific implementation, the terminal device may use the unlicensed spectrum channel received in the time slot. The power is compared with the energy detection threshold. If the threshold is higher than the threshold, the CCA evaluation result is that the channel is busy, that is, the terminal device does not allow the channel to transmit data of the unlicensed spectrum; if the threshold is lower than the threshold, the CCA evaluation result is that the channel is idle. That is, the terminal device allows data to be transmitted on the channel occupying the unlicensed spectrum.

The second evaluation type: the terminal device randomly generates a back-off count value J between 0 and q, and sets the counter value of the counter to the back-off count value J, where q is the contention window length. The terminal device continuously listens to the channel of the unlicensed spectrum in units of slots of 9 us. If the channel of the unlicensed spectrum is idle in one time slot, the counter is decremented by one, if it is detected in one time slot If the channel of the licensed spectrum is busy, the counter is suspended until the next time the channel of the unlicensed spectrum is heard to be idle, the counter is resumed. When the counter is reduced to 0, the CCA evaluation result of the terminal device is that the channel of the unlicensed spectrum is idle, and the channel that occupies the unlicensed spectrum is allowed to transmit data.

As shown in FIG. 2, the method may include:

S201. The network device sends the first DCI to the first terminal device in the first subframe.

The first DCI includes means for instructing the terminal device to perform in the time of the first uplink subframe. Information about the first CCA used in CCA.

Specifically, the application scenario that the foregoing network device sends the first DCI to the first terminal device in the first subframe, and the specific description of how the network device sends the first DCI to the first terminal device in the first subframe may be referred to the foregoing S101. The present invention will not be described again.

It should be noted that, in the embodiment, the first DCI is used to instruct the first terminal device to send uplink data information in the N uplink subframes by using the first carrier of the unlicensed spectrum. Optionally, the first DCI further includes a first uplink subframe indicating that the first terminal device is in time in the one or more uplink subframes, that is, the one or more uplink subframes. The first time of the medium time frame) performs CCA. At the same time, the first DCI further includes information for indicating the first CCA used by the terminal device to perform CCA in the time of the first uplink subframe, where the information of the first CCA mentioned herein may include, for example, whether The indication information of the CCA needs to be performed. Optionally, if the information of the first CCA includes: indication information that the current CCA needs to be performed, that is, the first terminal device needs to perform CCA in the first uplink subframe, the first CCA The information may further include: an evaluation type of the current CCA, an execution time of the current CCA, that is, at least one of the evaluation type of the CCA performed by the first terminal device in the first uplink subframe, and the time when the CCA is executed. Further, if the evaluation type of the current CCA included in the information of the first CCA is the second evaluation type, the information of the first CCA may further include the contention window length of the current CCA and/or the current CCA. The backoff count value.

S202. The terminal device receives the first DCI.

S203. The network device sends the second DCI to the first terminal device in the second subframe.

The second DCI includes information for indicating a second CCA used by the terminal device in the time of the first uplink subframe; the first subframe is earlier than the second subframe.

Specifically, the application scenario that the foregoing network device sends the second DCI to the first terminal device in the second subframe, and the specific description of how the network device sends the second DCI to the first terminal device in the second subframe may be referred to in the foregoing S103. The present invention will not be described again.

It should be noted that, in this embodiment, the second DCI is used to indicate information about the second CCA used by the terminal device to perform CCA in the time of the first uplink subframe, and the information of the second CCA may be related to The information of the CCA used by the second terminal device in the first uplink subframe is the same, or approximately the same, so that when the second terminal device performs CCA in the first uplink subframe, the first terminal device also performs the first uplink subframe. CCA, instead of sending data, thus making the second terminal device and the first The CCA evaluation result obtained by the terminal device is that all channels of the unlicensed spectrum are idle. In this way, the first terminal device and the second terminal device can send uplink data through different frequency resources, even if the first terminal device and the first terminal device The two terminal devices transmit uplink data in the first uplink subframe by means of frequency division multiplexing, thereby improving the spectrum utilization rate of the unlicensed spectrum.

The information of the second CCA mentioned above may include, for example, the indication information of whether the CCA is currently required to be executed. Optionally, if the information of the second CCA includes: indication information that the current CCA needs to be performed, the second CCA The information may further include: at least one of a current CCA evaluation type and an execution time of the current CCA. Further, if the evaluation type of the current CCA included in the information of the second CCA is the second evaluation type, the information of the second CCA may further include the contention window length of the current CCA and/or the current CCA. The backoff count value. The information of the first CCA and the content of the information of the second CCA may all be different, or may be different ones, and may be determined according to actual conditions.

S204. The terminal device receives the second DCI.

S205. The terminal device performs CCA in the time of the first uplink subframe according to the information of the second CCA.

Specifically, after the first terminal device receives the second DCI, the first DCI may be updated by using the second DCI, so that the first terminal device may be configured according to the information of the second CCA included in the second DCI. The CCA is performed at the time of an uplink subframe, and the second terminal device can perform CCA in the first uplink subframe simultaneously with the first terminal device according to the information of the CCA scheduled by the network device.

Optionally, after the first terminal device performs the CCA in the first uplink subframe, the CCA evaluation result may be obtained. If the CCA evaluation result is that the channel is idle, the second terminal device is scheduled according to the network device. The information of the CCA is performed in the first uplink subframe simultaneously with the first terminal device, and the obtained CCA evaluation result may also be that the channel is idle, if the CCA execution time of the first terminal device and the second terminal device is the first When an uplink subframe is other than the last symbol, the first terminal device may send uplink data by using the first carrier for the remaining time after the CCA is performed in the first uplink subframe, and the second terminal device may pass the first carrier. The uplink data is sent in the remaining time after the CCA is performed in the first uplink subframe, and accordingly, the network device may detect the uplink data sent by the first terminal device and the second terminal device in the first uplink subframe. In this way, the first terminal device and the second terminal device can be simultaneously passed in the first uplink subframe. The same frequency resource transmits the uplink data, and the first terminal device and the second terminal device transmit the uplink data in the first uplink subframe by means of frequency division multiplexing, thereby improving the spectrum usage rate of the unlicensed spectrum. Optionally, in this embodiment, the foregoing second DCI further includes information for instructing the first terminal device to send uplink data in the M uplink subframes by using the first carrier of the unlicensed spectrum, where M≥1. If M=1, the second DCI includes information for instructing the first terminal device to send uplink data in the first uplink subframe. If M>1, the second DCI includes information for instructing the first terminal device to send uplink data in the second uplink subframe set, where the second uplink subframe set includes the first uplink subframe. A preferred application scenario of the present invention is M>1. Here, M and the first terminal device indicated by the first DCI may be equal or not equal in the information of transmitting the uplink data in the N uplink subframes through the first carrier of the unlicensed spectrum. In another implementation manner of the present invention, if the CCA execution time of the first terminal device and the second terminal device is the last symbol of the first uplink subframe, the first terminal device may pass the first carrier The second uplink subframe adjacent to the uplink subframe transmits the uplink data, and the second terminal device may send the uplink data in the second uplink subframe adjacent to the first uplink subframe by using the first carrier, and correspondingly, the foregoing network The device may detect uplink data sent by the first terminal device and the second terminal device in a second uplink subframe that is adjacent to the first uplink subframe. In this way, the first terminal device and the second terminal device can simultaneously send uplink data in different uplink resources in the second uplink subframe, even if the first terminal device and the second terminal device are in frequency division multiplexing manner. The second uplink subframe transmits uplink data, which improves the spectrum utilization rate of the unlicensed spectrum.

Optionally, in another implementation manner of the present disclosure, the foregoing first DCI may further include information used to indicate that the first terminal device occupies the first time of the first uplink subframe when the uplink data is sent by using the first carrier, The foregoing method may further include: after the S205, the foregoing method may further include: performing the second time that the first terminal device is used to send the uplink data by using the first carrier;

The first terminal device obtains the evaluation result of the CCA. If the evaluation result of the CCA is that the channel is idle, the first terminal device sends the uplink data by using the first carrier in the second time of the first uplink subframe.

Specifically, different from the foregoing embodiment, the first DCI and the second DCI in the foregoing embodiment do not indicate that the first terminal device occupies the time of the first uplink subframe when the uplink data is sent in the first uplink subframe, and correspondingly The second DCI sent by the network device to the second terminal device does not indicate that the second terminal device occupies the first uplink subframe when the uplink data is sent in the first uplink subframe. Therefore, By default, the first terminal device and the second terminal device may send uplink data at all times when the CCA evaluation result is that all channels of the unlicensed spectrum are idle, and the first uplink subframe does not perform CCA.

In the embodiment, the first DCI further includes information for indicating that the first terminal device occupies the first time of the first uplink subframe when the uplink data is sent by using the first carrier, where the second DCI is further included. The information indicating the second time of the first uplink subframe is used when the first terminal device sends the uplink data by using the first carrier, where the second time included in the second DCI may be scheduled by the network device for the second terminal device. When the second terminal device sends the uplink data by using the first carrier, the time of occupying the first uplink subframe is the same or close, so that the first terminal device and the second terminal device perform CCA after the first uplink subframe, and obtain the CCA. The measurement result is that when the channel is idle, the first terminal device can send uplink data in the second time of the first uplink subframe by using the first carrier, and the second terminal device can use the first carrier in the first uplink subframe and the second Sending uplink data at the same time or close time, so that the first terminal device and the second terminal device simultaneously pass different frequency resources in the first uplink subframe. Send line data, even if the first terminal and the second terminal device transmits an uplink frame in the first uplink sub-data by a frequency division multiplexing manner, to improve the spectrum utilization unlicensed spectrum.

The uplink data transmission method provided by the embodiment of the present invention, after the network device sends the first DCI to the terminal device, may further send, to the terminal device, a second DCI that is adapted to other terminal devices to perform CCA in the same uplink subframe, After the terminal device receives the second DCI, the first DCI may be updated by using the second DCI, that is, using the second DCI to perform the same or similar CCA in the same uplink subframe as the other terminal devices, so that the terminal device and other terminals are enabled. When the device obtains the CCA evaluation result as idle at the same time, the terminal device can send data in the same uplink subframe simultaneously with other terminal devices, thereby improving the spectrum utilization rate of the unlicensed spectrum.

FIG. 3 is a signaling flowchart of Embodiment 3 of an uplink data transmission method according to an embodiment of the present invention. The third embodiment relates to a specific process for the first terminal device to send uplink data according to the first indication information in the first DCI sent by the network device. As shown in FIG. 3, the method may include:

S301. The network device determines to send the first control information to the terminal device.

S302. The network device sends the first control information to the terminal device.

The first control information includes first indication information, where the first control information is used by the scheduling terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where the first indication information is used to indicate that the terminal device is in the second uplink. The state of the start time of data transmission in each uplink subframe in the subframe set, second The uplink subframe set is a set of uplink subframes other than the first uplink subframe in the first uplink subframe set. The state of the start time indicated by the first indication information is that the start time of the data transmitted by the terminal device in the M uplink subframes in the second uplink subframe set is the first reference time, and the terminal device is in the second uplink subframe set. The start time of the data sent in the NM uplink subframes is the second reference time, where the first reference time and the second reference time are different, where N is the number of uplink subframes included in the second uplink subframe set, M Not more than 1.

On the carrier of the unlicensed spectrum, in order to improve the transmission efficiency of the uplink data scheduling indication information, the network device may send the control information to send the uplink data in multiple uplink subframes, for example, the first control information is used for scheduling. The terminal device sends data in each uplink subframe in the first uplink subframe set, where the first uplink subframe set includes four temporally consecutive uplink subframes. The uplink subframes other than the first uplink subframe in the first uplink subframe set constitute a second uplink subframe set. The first control information includes information indicating that the scheduling terminal device transmits uplink data in each uplink subframe of the first uplink subframe set, and further includes first indication information. The first indication information is used to indicate a state in which the terminal device sends data in each uplink subframe in the second uplink subframe set, and the second uplink subframe set is the first in the first uplink subframe set except time. A set of uplink subframes outside the uplink subframe. The state of the start time indicated by the first indication information is that the start time of the data transmitted by the terminal device in the M uplink subframes in the second uplink subframe set is the first reference time, and the terminal device is in the second uplink subframe set. The start time of the data sent in the NM uplink subframes is the second reference time, where the first reference time and the second reference time are different, where N is the number of uplink subframes included in the second uplink subframe set, M Not more than 1. In particular, N ≥ 2. Specifically, only one first indication information is included in the first control information.

FIG. 4 is a schematic diagram of Embodiment 1 of the first control information according to the embodiment of the present invention. As shown in FIG. 4, the first uplink subframe set includes four uplink subframes (N=4) and a second uplink subframe set. Including the last three uplink subframes of the four uplink subframes, the state of the start time indicated by the first indication information is that the terminal device has at most one uplink in the three uplink subframes included in the second uplink subframe set. The start time of the data transmitted by the subframe is the first reference time, and the start time of the data transmitted by the other uplink subframes is the second reference time. The first reference time and the second reference time are different. For example, the first reference time is the start point of the second symbol in the uplink subframe in which the uplink data is transmitted, and the second reference time is the start point of the first symbol in the uplink subframe in which the uplink data is transmitted. As shown in FIG. 4, the first indication information indicates that the terminal device sends the uplink data in the second uplink subframe in the second uplink subframe set. The start time is the position where the second symbol of the uplink subframe starts, and the start time of the uplink data sent by the other three uplink subframes of the second uplink subframe set is the first of each of the three uplink subframes. The position at which the symbol begins.

Assuming that the second uplink subframe set includes N uplink subframes, the first indication information in the first control information includes

Bit, where

Represents a combined value of y values from x values. In the above example, N=3, the first indication information in the first control information includes 2 bits. That is, the network device uses the 2-bit indication information to indicate to the terminal device that the start time of transmitting the uplink data in each uplink subframe in the second uplink subframe set is one of the following four situations:

Case 1: The start time of transmitting uplink data on three uplink subframes is the start point of the first symbol of each of the three uplink subframes;

Case 2: The start time of the uplink data sent by the first uplink subframe in the three uplink subframes is the start point of the second symbol of the uplink subframe, and the start of the uplink data is sent by the second and third uplink subframes. The time is the starting point of the first symbol of each of the two uplink subframes;

Case 3: The start time of transmitting the uplink data in the second uplink subframe in the three uplink subframes is the start point of the second symbol of the uplink subframe, and the start of the uplink data is sent in the first and third uplink subframes. The time is the starting point of the first symbol of each of the two uplink subframes;

Case 4: The start time of transmitting the uplink data in the third uplink subframe in the three uplink subframes is the start point of the second symbol of the uplink subframe, and the start of the uplink data is sent in the first and second uplink subframes. The time is the starting point of the first symbol of each of the two uplink subframes.

For example, the “00” state of the first indication information corresponds to case 1; the “01” state of the first indication information corresponds to case 2; the “10” state of the first indication information corresponds to case 3; and the “11” state of the first indication information corresponds to Case 4. Alternatively, the correspondence between "00", "01", "10", "11" of the first indication information and Case 1, Case 2, Case 3, and Case 4 may be other states.

The network device indicates, by using the first indication information, that the start time of the uplink data sent by the terminal device in one or the zero uplink subframes of the second uplink subframe set is the second reference time, and does not need to indicate that the terminal device is in the second uplink. Whether the start time of sending the uplink data in each uplink subframe in the subframe set is the first reference time or the second reference time of the uplink subframe, which can save the indication information of the first control information, and improve the indication efficiency of the control information. .

FIG. 5 is a schematic diagram of Embodiment 2 of the first control information according to the embodiment of the present invention. As shown in FIG. 5, in another implementation manner of the present disclosure, the network device may further be configured according to the second uplink subframe. Whether each uplink subframe in the set determines whether the terminal device is in each uplink subframe in the first uplink subframe set in the range of the Maximum Channel Occupancy Time (MCOT) of the downlink burst sent by the network device in time. The start time of the frame to send data. And transmitting the determined result to the terminal device by using the first indication information of the first control information. If each uplink subframe in the second uplink subframe set is in the range of MCOT in time (as in the case of the second end point of the MCOT in FIG. 5), the network device determines to send to the terminal device. The state of the start time indicated by the first indication information of the first control information is that the start time of the data transmitted by the terminal device in each uplink subframe of the second uplink subframe set is the second reference time; if the second uplink subframe If the time of the Kth uplink subframe in the set is partially or completely outside the range of the MCOT (as in the case of the first end point of the MCOT shown in FIG. 5), the network device determines the first control information sent to the terminal device. The state of the start time indicated by the first indication information is that the start time of the data transmitted by the terminal device in the Kth uplink subframe in the second uplink subframe set is the first reference time, and the second uplink subframe set is in addition to the first The start time of transmitting data in each uplink subframe except the K uplink subframes is the second reference time.

It should be noted that the first reference time is the starting point of the second symbol in the uplink subframe that sends the uplink data, and the second reference time is the starting point of the first symbol in the uplink subframe that sends the uplink data. An embodiment of the solution, but the present invention is also applicable to other situations in which the first reference time and the second reference time are different, which is not limited by the present invention. The first reference time and the second reference time in the present invention are both The time in which the terminal device is within the subframe in which the uplink data is transmitted. For example, the network device determines that the start time indicated by the first indication information sent by the terminal device is that the start time of the data sent by the terminal device in each uplink subframe in the second uplink subframe set is the second reference time, and the The second reference time is the starting point of the first symbol in the uplink subframe in which the uplink data is transmitted. Then, the meaning of the first indication information is that the terminal device starts transmitting data of each uplink subframe in the beginning of the first symbol of each uplink subframe in the second uplink subframe set. In particular, within one uplink subframe, the second reference time is earlier than the first reference time.

It should be noted that, by using the first indication information, the terminal device may determine, by using the first indication information, a start time of sending data in each uplink subframe in the second uplink subframe set, where the start time of the sent data is the first uplink subframe of the first reference time. In this case, the terminal device needs to perform the channel idle evaluation CCA before the first reference time of the first uplink subframe, and the uplink subframe in which the data transmission start time in the second uplink subframe set is the second reference time is not Perform CCA. That is, the first indication information can also be described as And indicating, in the second uplink subframe set, whether the uplink subframe performs CCA, and the second uplink subframe set is an uplink subframe except the first uplink subframe in the first uplink subframe set. The composition of the collection. Whether the status of the CCA is performed by the first indication information is that the terminal device performs CCA in the M uplink subframes in the second uplink subframe set, and the terminal device does not perform in the NM uplink subframes in the second uplink subframe set. CCA, where N is the number of uplink subframes included in the second uplink subframe set, and M is not greater than 1. In particular, N ≥ 2. That is, the terminal device performs CCA in the first reference time when the initial position of the uplink data is sent in a certain uplink subframe, and the terminal device performs the CCA before the second reference time in the uplink subframe, and the network device can use the same indication manner to The information is indicated to the terminal device. The network device indicates, by using the first control information, that the terminal device performs CCA information in at most one uplink subframe in the second uplink subframe set, and does not need to indicate the time of the terminal device in each uplink subframe in the second uplink subframe set. Executing the information of the CCA can save the indication information of the first control information and improve the indication efficiency of the control information.

Further, the first control information further includes an evaluation type for indicating that the terminal device performs CCA in the time of the M uplink subframes, a time range for performing CCA, a contention window length for performing CCA, and a backoff count value for performing CCA. One or more messages in . It should be noted that, if M=0, the information included in the first control information for indicating that the terminal device performs CCA in the time of the M uplink subframes may be a reserved bit, and the terminal device may ignore the indication information.

Further, the first control information further includes second indication information, where the second indication information is used to indicate a state in which the terminal device sends the end time of the uplink data in the second uplink subframe. The second uplink subframe is the last uplink subframe in the first uplink subframe set. The end time is a third reference time or a fourth reference time at which the terminal device transmits the uplink data in the second uplink subframe. The third reference time is different from the fourth reference time. For example, the third reference time is the end point of the last symbol of the second uplink subframe, and the fourth reference time is the end point of the second last symbol of the second uplink subframe.

S303. The terminal device receives the first control information.

S304. The terminal device acquires first indication information in the first control information.

S305. The terminal device sends uplink data in each uplink subframe of the second uplink subframe set according to the first indication information.

After acquiring the first indication information in the first control information, the terminal device sends the uplink data in each uplink subframe of the second uplink subframe set according to the indication of the first indication information. For example, if the first The indication information indicates that the start time of the data sent by the terminal device in each uplink subframe in the second uplink subframe set is the second reference time, and the uplink subframe in the second uplink subframe set of the terminal device is determined according to the channel evaluation result. Whether uplink data is transmitted from the second reference time of each of the uplink subframes. If the first indication information indicates that the start time of the first uplink subframe transmission data of the terminal device in the second uplink subframe set is the first reference time, and the second uplink subframe set includes the first uplink subframe The start time of the data sent by the other uplink subframes is the second reference time, and the CCA is performed before the first reference time of the first uplink subframe in the second uplink subframe set of the terminal device, and the CCA is executed according to the current time. The result and the result of other CCAs performed before the execution of the CCA determine whether the uplink data is transmitted in each uplink subframe in the second uplink subframe set. If the terminal device acquires, from the first control information, one or more of an evaluation type of performing CCA, a time range for performing CCA, a contention window length for performing CCA, and a backoff count value for performing CCA in a time of the first uplink subframe. The information is that the terminal device performs CCA using the acquired information of the CCA in the time of the first uplink subframe.

FIG. 6 is a signaling flowchart of Embodiment 4 of an uplink data transmission method according to an embodiment of the present invention. The fourth embodiment relates to a specific process for the first terminal device to send uplink data according to the first indication information in the first DCI sent by the network device. As shown in FIG. 6, the method may include:

S601. The network device determines to send the first control information to the terminal device.

S602. The network device sends the first control information to the terminal device.

The first control information includes first indication information, where the first control information is used by the scheduling terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where the first indication information is used to indicate that the terminal device is in the second uplink. A state in which the end time of each uplink subframe is transmitted in the subframe set, and the second uplink subframe set is a set of uplink subframes other than the last uplink subframe in the first uplink subframe set. The end time indicated by the first indication information meets the end time of the terminal device transmitting data in the M uplink subframes in the second uplink subframe set as the first reference time, and the terminal device is in the second uplink subframe set NM. The end time of the data to be transmitted in the uplink subframe is the second reference time, where the first reference time and the second reference time are different, where N is the number of uplink subframes included in the second uplink subframe set, and M is not greater than 1. . In particular, N ≥ 2. Specifically, only one first indication information is included in the first control information.

On the carrier of the unlicensed spectrum, in order to improve the transmission efficiency of the uplink data scheduling indication information, the network device may send the control information to schedule the terminal device to send uplinks in multiple uplink subframes. Data, for example, the first control information is used by the scheduling terminal device to transmit data in each uplink subframe in the first uplink subframe set, where the first uplink subframe set includes four temporally consecutive uplink subframes. The uplink subframes other than the last uplink subframe in the first uplink subframe set constitute a second uplink subframe set. The first control information includes information indicating that the scheduling terminal device transmits uplink data in each uplink subframe of the first uplink subframe set, and further includes first indication information. The first indication information is used to indicate a state in which the terminal device sends the end time of the data in each uplink subframe in the second uplink subframe set, and the second uplink subframe set is the last uplink subframe in the first uplink subframe set except the time. A collection of out-of-frame subframes. The end time indicated by the first indication information meets the end time of the terminal device transmitting data in the M uplink subframes in the second uplink subframe set as the first reference time, and the terminal device is in the second uplink subframe set NM. The end time of the data to be transmitted in the uplink subframe is the second reference time, where the first reference time and the second reference time are different, where N is the number of uplink subframes included in the second uplink subframe set, and M is not greater than 1. .

FIG. 7 is a schematic diagram of Embodiment 3 of the first control information according to the embodiment of the present invention. As shown in FIG. 7, the first uplink subframe set includes four uplink subframes (N=4) and a second uplink subframe set. Including the first three uplink subframes of the four uplink subframes, the state of the end time indicated by the first indication information is that the terminal device has at most one uplink subframe among the three uplink subframes included in the second uplink subframe set. The end time of the frame transmission data is the first reference time, and the end time of the data transmission in the other uplink subframes is the second reference time. The first reference time and the second reference time are different. For example, the first reference time is the end point of the penultimate symbol in the uplink subframe in which the uplink data is transmitted, and the second reference time is the end point of the first symbol in the last subframe of the uplink subframe in which the uplink data is transmitted. As shown in FIG. 7, the first indication information indicates that the start time of the uplink data sent by the second uplink subframe in the second uplink subframe set by the terminal device is the start position of the second symbol of the uplink subframe, and The start time of transmitting the uplink data in the other three uplink subframes of the second uplink subframe set is the position where the first symbol of each of the three uplink subframes starts.

Bit, where

Represents a combined value of y values from x values. In the above example, N=3, the first indication information in the first control information includes 2 bits. That is, the network device uses the 2-bit indication information to indicate to the terminal device that the end time of transmitting the uplink data in each uplink subframe in the second uplink subframe set is one of the following four cases:

Case 1: The end time for transmitting uplink data on 3 uplink subframes is the three uplinks respectively. The end point of the last symbol of each of the sub-frames;

Case 2: The end time of transmitting uplink data in the first uplink subframe in the three uplink subframes is the end point of the second last symbol of the uplink subframe, and the end time of transmitting the uplink data in the second and third uplink subframes The end points of the last symbol of each of the two uplink subframes;

Case 3: The end time of transmitting the uplink data in the second uplink subframe in the three uplink subframes is the end point of the second last symbol of the uplink subframe, and the start of the uplink data in the first and third uplink subframes. The time is the end point of the last symbol of each of the two uplink subframes;

Case 4: The end time of transmitting the uplink data in the third uplink subframe in the three uplink subframes is the end point of the second last symbol of the uplink subframe, and the start of the uplink data is sent in the first and second uplink subframes. The time is the end point of the last symbol of each of the two uplink subframes.

The network device indicates, by using the first indication information, that the end time of the uplink data sent by the terminal device in one or the zero uplink subframes of the second uplink subframe set is the second reference time, and does not need to indicate that the terminal device is in the second uplink. The end time of sending the uplink data in each uplink subframe in the frame set is the first reference time or the second reference time of the uplink subframe, which can save the indication information of the first control information and improve the indication efficiency of the control information.

FIG. 8 is a schematic diagram of Embodiment 4 of the first control information according to the embodiment of the present invention. As shown in FIG. 8 , in another implementation manner of the present disclosure, the network device may further be configured according to each of the second uplink subframe sets. Whether the uplink subframe is in the range of the MCOT of the downlink burst sent by the network device in time, determining the end time of the data transmission by the terminal device in each uplink subframe in the first uplink subframe set, and passing the determined result through the first The first indication information of the control information is sent to the terminal device. If each uplink subframe in the second uplink subframe set is in the range of MCOT in time (as in the case of the second end point of the MCOT in the following figure), the network device determines the first control information sent to the terminal device. The state of the end time indicated by the first indication information is that the start time of the terminal device transmitting data in each uplink subframe in the second uplink subframe set is the second reference time; if the Kth in the second uplink subframe set is If the time of the uplink subframe is partially or completely outside the range of the MCOT, the network device determines the state of the end time indicated by the first indication information of the first control information that is sent to the terminal device. The end time for the terminal device to transmit data in the Kth uplink subframe in the second uplink subframe set is the first reference time, and the uplink subframes except the Kth uplink subframe are sent in the second uplink subframe set. The end time of the data is the second reference time.

It should be noted that the first reference time is the end point of the second-to-last symbol in the uplink subframe in which the uplink data is sent, and the second reference time is the end point of the last symbol in the uplink subframe in which the uplink data is sent. An embodiment of the solution, but the present invention is also applicable to other situations in which the first reference time and the second reference time are different, which is not limited by the present invention. The first reference time and the second reference time in the present invention are both The time in which the terminal device is within the subframe in which the uplink data is transmitted. For example, the network device determines that the end time indicated by the first indication information sent by the terminal device is that the end time of the terminal device transmitting data in each uplink subframe in the second uplink subframe set is the second reference time, and the second reference Time is the end of the last symbol in the uplink subframe in which the uplink data is transmitted. Then, the meaning of the first indication information is that the end time of the terminal device transmitting data in each uplink subframe in the second uplink subframe set is the end position of the last symbol of each uplink subframe. In particular, within one uplink subframe, the first reference time is earlier than the second reference time.

It is to be noted that the terminal device may determine, by using the first indication information, an end time of sending data in each uplink subframe in the second uplink subframe set, where the end time of the sending data is the first uplink subframe of the first reference time. The terminal device needs to perform the channel idle evaluation CCA after the first reference time of the first uplink subframe, and the uplink subframe in which the data transmission end time in the second uplink subframe set is the second reference time does not perform CCA. That is, the first indication information may also be described as indicating a state in which the terminal device performs CCA in each uplink subframe in the second uplink subframe set, and the second uplink subframe set is the last in the first uplink subframe set. A set of uplink subframes outside of an uplink subframe. Whether the status of the CCA is performed by the first indication information is that the terminal device performs CCA in the M uplink subframes in the second uplink subframe set, and the terminal device does not perform in the NM uplink subframes in the second uplink subframe set. CCA, where N is the number of uplink subframes included in the second uplink subframe set, and M is not greater than 1. In particular, N ≥ 2. That is, for the terminal device to perform CCA after the end position of the uplink data in the uplink subframe is the first reference time and the terminal device performs the CCA after the second reference time of the uplink subframe, the network device may use the same indication manner to The information is indicated to the terminal device. The network device indicates, by using the first control information, that the terminal device performs CCA information in at most one uplink subframe in the second uplink subframe set, and does not need to indicate the time of the terminal device in each uplink subframe in the second uplink subframe set. Whether to perform CCA information within, can save the first control The indication information of the information improves the indication efficiency of the control information.

S603. The terminal device receives the first control information.

S604. The terminal device acquires first indication information in the first control information.

S605. The terminal device sends uplink data in each uplink subframe of the second uplink subframe set according to the first indication information.

After acquiring the first indication information in the first control information, the terminal device sends the uplink data in each uplink subframe of the second uplink subframe set according to the indication of the first indication information. For example, if the first indication information indicates that the end time of the data transmission by the terminal device in each uplink subframe of the second uplink subframe set is the second reference time, each uplink subframe in the second uplink subframe set of the terminal device The uplink data is sent from the uplink subframes according to the channel evaluation result. If the first indication information indicates that the terminal device transmits data in the first uplink subframe in the second uplink subframe set, the end time is the first reference time, and in the second uplink subframe set, except the first uplink subframe. The end time of the data sent by the other uplink subframes is the first reference time, and the CCA is performed after the second reference time of the first uplink subframe in the second uplink subframe set of the terminal device, and the result of the current CCA is performed according to the current The result of the other CCAs performed before the execution of the CCA determines whether uplink data is transmitted in each uplink subframe in the second uplink subframe set. If the terminal device acquires, from the first control information, one or more of an evaluation type of performing CCA, a time range for performing CCA, a contention window length for performing CCA, and a backoff count value for performing CCA in a time of the first uplink subframe. Information, the terminal is located in the first The CCA is performed using the acquired information of the CCA in an uplink subframe time.

FIG. 9 is a signaling flowchart of Embodiment 5 of an uplink data transmission method according to an embodiment of the present invention. The fifth embodiment relates to a specific process for the first terminal device to send uplink data according to the first indication information in the first DCI sent by the network device. As shown in FIG. 9, the method may include:

S901. The network device determines first control information that is sent by the terminal device.

S902. The network device sends the first control information to the terminal device.

The first control information includes first indication information and second indication information, where the first control information is used by the scheduling terminal device to send uplink data in each uplink subframe in the first uplink subframe set. The first indication information is used to indicate a state in which the terminal device starts sending data in each uplink subframe in the second uplink subframe set. The first control information includes and includes only one second indication information, where the second indication information includes only one information for indicating the CCA, where the CCA information is used by the terminal device to perform in each uplink subframe in the third uplink subframe set. CCA. The second uplink subframe set is a set of uplink subframes other than the first uplink subframe in the first uplink subframe set. The state of the start time indicated by the first indication information is that the start time of the data transmitted by the terminal device in each uplink subframe in the third uplink subframe set is the first reference time, and the terminal device is in the fourth uplink subframe set. The start time of transmitting data in each uplink subframe is the second reference time. The first reference time and the second reference time are different. The third uplink subframe set includes L uplink subframes, and the fourth uplink subframe set includes N-L uplink subframes. The third uplink subframe set and the fourth uplink subframe set are both subsets of the second uplink subframe set. N is the number of uplink subframes included in the second uplink subframe set, where 0≤L≤N.

The first control information includes and includes only one second indication information, where the second indication information includes only one information indicating the CCA, and the information of the CCA includes an evaluation type of performing CCA, a time range for performing CCA, and a competition window for performing CCA. Length, one or more of the CSA's backoff count values. It should be noted that, if L=0, the information in the second indication information included in the first control information may be reserved information, and the terminal device may ignore the indication information.

For example, the first reference time is a starting point of a second symbol in an uplink subframe in which uplink data is sent, and the second reference time is a starting point of a first symbol in an uplink subframe in which uplink data is sent. It should be noted that the present invention is also applicable to other situations in which the first reference time and the second reference time are different, which is not limited by the present invention. Specifically, in one uplink subframe, the second reference time is earlier than the first reference. time.

If the number L of uplink subframes included in the third uplink subframe set is greater than 1, the second indication information sent by the network device may indicate that the terminal performs CCA information in the L uplink subframes by using only one information of performing CCA. The information indicating that the N pieces of CCAs are instructed to indicate the information of the CCA in the time of each of the N uplink subframes in the second uplink subframe set in the control information may save the indication information of the first control information. Improve the efficiency of control information.

S903. The terminal device acquires first control information.

S904. The terminal device performs CCA according to the indication of the first control information according to the indication that the start time of the data in the second uplink subframe set is the second reference time according to the indication of the first control information.

FIG. 10 is a signaling flowchart of Embodiment 6 of an uplink data transmission method according to an embodiment of the present invention. The sixth embodiment relates to a specific process for the first terminal device to send uplink data according to the first indication information in the first DCI sent by the network device. As shown in FIG. 10, the method may include:

S1001: The network device determines first control information that is sent by the terminal device.

S1002: The network device sends the first control information to the terminal device.

The first control information includes first indication information and second indication information, where the first control information is used by the scheduling terminal device to send uplink data in each uplink subframe in the first uplink subframe set. The first indication information is used to indicate a state in which the terminal device starts sending data in each uplink subframe in the second uplink subframe set. The first control information includes and includes only one second indication information, where the second indication information includes only one information for indicating the CCA, where the CCA information is used by the terminal device in each uplink subframe of the third uplink subframe set. Perform CCA information. The second uplink subframe set is a set of uplink subframes other than the first uplink subframe in the first uplink subframe set. The state of the start time indicated by the first indication information is that the start time of the data transmitted by the terminal device in each uplink subframe in the third uplink subframe set is the first reference time, and the terminal device is in the fourth uplink subframe set. The start time of transmitting data in each uplink subframe is the second reference time. The first reference time and the second reference time are different.

For example, the third uplink subframe set includes L uplink subframes, and the fourth uplink subframe set includes N-L uplink subframes. The third uplink subframe set and the fourth uplink subframe set are both subsets of the second uplink subframe set. N is the number of uplink subframes included in the second uplink subframe set, where 0≤L≤N.

The first control information includes and includes only one second indication information, and only the second indication information includes The information indicating the CCA includes one or more of an evaluation type of performing CCA, a time range of performing CCA, a contention window length of performing CCA, and a backoff count value of performing CCA. It should be noted that, if L=0, the information in the second indication information included in the first control information may be reserved information, and the terminal device may ignore the indication information.

For example, the first reference time is a starting point of a second symbol in an uplink subframe in which uplink data is sent, and the second reference time is a starting point of a first symbol in an uplink subframe in which uplink data is sent. It should be noted that the present invention is also applicable to other situations in which the first reference time and the second reference time are different, which is not limited by the present invention. Specifically, in one uplink subframe, the second reference time is later than the first reference. time.

It is assumed that the second uplink subframe set includes N uplink subframes, and the first indication information in the first control information includes N bits. For example, the network device uses the 3-bit indication information to indicate to the terminal device the start time of transmitting the uplink data in the first, second, and third uplink subframes in the second uplink subframe set. For example, the state “0” represents that the start time of transmitting data in the uplink subframe is the second reference time, and the state “1” represents that the start time of sending data in the uplink subframe is the first reference time. Then, the status "010" of the first indication information in the first control information indicates that the network device indicates that the start time of the second uplink subframe transmission data in the second uplink subframe set by the terminal device is the first reference time, and Instructing the terminal device to start sending data in the first and third uplink subframes in the second uplink subframe set is a second reference time, and so on.

If the number L of uplink subframes included in the third uplink subframe set is greater than 1, the second indication information sent by the network device may indicate that the terminal performs CCA information in the L uplink subframes by using only one information of performing CCA, and The first control information includes an indication that the N pieces of CCA information respectively indicate that the CCA information is executed in the time of each of the N uplink subframes in the second uplink subframe set, and the first control information is saved. Information to improve the efficiency of control information.

It should be noted that, by using the first indication information, the terminal device may determine, by using the first indication information, a start time of sending data in each uplink subframe in the second uplink subframe set, where the start time of the sent data is the first uplink subframe of the first reference time. In this case, the terminal device needs to perform the channel idle evaluation CCA before the first reference time of the first uplink subframe, and the uplink subframe in which the data transmission start time in the second uplink subframe set is the second reference time is not Perform CCA. That is, the first indication information may also be described as indicating a state in which the terminal device performs CCA in each uplink subframe in the second uplink subframe set, and the second uplink subframe set is in the first uplink subframe set in addition to time. The uplink sub-frame outside the first uplink subframe A collection of frames. That is, the terminal device performs CCA in the first reference time when the initial position of the uplink data is sent in a certain uplink subframe, and the terminal device performs the CCA before the second reference time in the uplink subframe, and the network device can use the same indication manner to The information is indicated to the terminal device.

S1003. The terminal device acquires first control information.

S1004. The terminal device performs CCA according to the indication of the first control information, according to the indication that the start time of the data in the second uplink subframe set is the first reference time, according to the indication of the first control information.

FIG. 11 is a signaling flowchart of Embodiment 7 of an uplink data transmission method according to an embodiment of the present invention. The seventh embodiment relates to a specific process for the first terminal device to send uplink data according to the first indication information in the first DCI sent by the network device. As shown in FIG. 11, the method may include:

S1101: The network device determines to send the first control information to the terminal device.

S1102: The network device sends the first control information to the terminal device.

The first control information includes first indication information and second indication information, where the first control information is used by the scheduling terminal device to send uplink data in each uplink subframe in the first uplink subframe set. The first indication information is used to indicate a state in which the terminal device ends the data transmission time of each uplink subframe in the second uplink subframe set. The first control information includes and includes only one second indication information, where the second indication information includes only one information for indicating the CCA, where the CCA information is used by the terminal device in each uplink subframe of the third uplink subframe set. Perform CCA information. The second uplink subframe set is a set of uplink subframes other than the last uplink subframe in the first uplink subframe set. The end time indicated by the first indication information is that the end time of the terminal device transmitting data in each uplink subframe in the third uplink subframe set is the first reference time, and the terminal device is in the fourth uplink subframe set. The end time of transmitting data in the uplink subframe is the second reference time. The first reference time and the second reference time are different.

The first control information includes and includes only one second indication information, where the second indication information includes only one information indicating the CCA, and the information of the CCA includes an evaluation type of performing CCA, a time range for performing CCA, and a competition window for performing CCA. Length, in the execution of the CCA backoff count value One or more messages. It should be noted that, if L=0, the information in the second indication information included in the first control information may be reserved information, and the terminal device may ignore the indication information.

For example, the first reference time is an end point of a penultimate symbol in an uplink subframe in which uplink data is transmitted, and the second reference time is an end point of a last symbol in an uplink subframe in which uplink data is transmitted. It should be noted that the present invention is also applicable to other situations in which the first reference time and the second reference time are different, which is not limited by the present invention. Specifically, in one uplink subframe, the second reference time is earlier than the first reference. time.

It is assumed that the second uplink subframe set includes N uplink subframes, and the first indication information in the first control information includes N bits. For example, the network device uses the 3-bit indication information to indicate to the terminal device the end time of transmitting the uplink data in the first, second, and third uplink subframes in the second uplink subframe set. For example, the state “0” represents that the end time of transmitting data in the uplink subframe is the second reference time, and the state “1” represents that the end time of transmitting data in the uplink subframe is the first reference time. Then, the status "010" of the first indication information in the first control information indicates that the network device indicates that the end time of the second uplink subframe transmission data in the second uplink subframe set by the terminal device is the first reference time, and the indication is The end time of the terminal device transmitting data in the first and third uplink subframes in the second uplink subframe set is the second reference time, and so on.

It is to be noted that the terminal device may determine, by using the first indication information, an end time of sending data in each uplink subframe in the second uplink subframe set, where the end time of the sending data is the first uplink subframe of the first reference time. The terminal device needs to perform the channel idle evaluation CCA after the first reference time of the first uplink subframe, and the uplink subframe in which the data transmission end time in the second uplink subframe set is the second reference time does not perform CCA. That is, the first indication information may also be described as indicating a state in which the terminal device performs CCA in each uplink subframe in the second uplink subframe set, and the second uplink subframe set is in the first uplink subframe set in addition to time. A set of uplink subframes outside the last uplink subframe. That is, the terminal device performs the CCA at the end position where the uplink data is transmitted in the uplink subframe and the terminal device performs the CCA after the second reference time of the uplink subframe. The device can indicate these two kinds of information to the terminal device in the same indication manner.

S1103: The terminal device acquires first control information.

S1104: The subframe device performs CCA according to the indication of the first control information, according to the indication of the first control information, that each subframe in which the end time of the data is sent in the second uplink subframe set is the first reference time.

One of ordinary skill in the art will appreciate that all or part of the steps to implement the various method embodiments described above may be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program, when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

FIG. 12 is a schematic structural diagram of Embodiment 1 of a terminal device according to an embodiment of the present invention. As shown in FIG. 12, the terminal device may include: a receiving module 11 and a sending module 12;

The receiving module 11 is configured to receive first control information that is sent by the network device in the first subframe, where the first control information is used to indicate that the terminal device occupies the first uplink subframe when sending uplink data by using the first carrier. First time information;

The receiving module 11 is further configured to receive second control information that is sent by the network device in a second subframe, where the second control information is used to indicate that the terminal device sends uplink data by using the first carrier And occupying information of the second time of the first uplink subframe; the first subframe is earlier than the second subframe;

The sending module 12 is configured to send uplink data by using the first carrier in a second time of the first uplink subframe.

The terminal device provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.

Optionally, the first subframe is a first downlink subframe or a first special subframe, and the second subframe is a second downlink subframe or a second special subframe.

FIG. 13 is a schematic structural diagram of Embodiment 2 of a terminal device according to an embodiment of the present invention. As shown in FIG. 13, the terminal device may include: a receiving module 21 and an executing module 22;

The receiving module 21 is configured to receive first control information that is sent by the network device in the first subframe, where the first control information is used to indicate that the terminal device uses the first idle time in the time of the first uplink subframe. Channel evaluation CCA information;

The receiving module 21 is further configured to receive second control information that is sent by the network device in a second subframe, where the second control information is used to indicate that the terminal device is in the first uplink subframe. Information of the second CCA used therein; the first subframe is earlier than the second subframe;

The executing module 22 is configured to perform CCA in the first uplink subframe according to the information about the second CCA included in the second control information received by the receiving module 21.

FIG. 14 is a schematic structural diagram of Embodiment 3 of a terminal device according to an embodiment of the present invention. As shown in FIG. 14, further, the terminal device may further include:

The first obtaining module 23 is configured to perform, after the CCA is performed in the first uplink subframe, according to the information about the second CCA that is included in the second control information that is received by the receiving module 21 Obtaining the evaluation result of the CCA;

The first sending module 24 is configured to: when the evaluation result of the CCA acquired by the first acquiring module 23 is that the channel is idle, pass the first carrier in the first uplink subframe, or The second uplink subframe adjacent to the first uplink subframe sends uplink data; the first uplink subframe is earlier than the second uplink subframe.

FIG. 15 is a schematic structural diagram of Embodiment 4 of a terminal device according to an embodiment of the present invention. As shown in FIG. 15 , in the embodiment, the foregoing first control information may further include indicating that the terminal device sends by using a first carrier. When the uplink data occupies the information of the first time of the first uplink subframe, the second control information may further include: when the terminal device sends the uplink data by using the first carrier, occupying the first uplink subframe. Second time information;

The foregoing terminal device may further include:

The second obtaining module 25 is configured to perform, after the CCA is performed in the first uplink subframe, according to the information about the second CCA that is included in the second control information that is received by the receiving module 21 Obtaining the evaluation result of the CCA;

The second sending module 26 is configured to: when the evaluation result of the CCA acquired by the second acquiring module 25 is that the channel is idle, send the uplink by using the first carrier in the second time of the first uplink subframe. data.

Optionally, the information of the foregoing first CCA and the information of the second CCA may include: whether the indication information of the CCA is currently required to be performed, the evaluation type of the current CCA, and the current CCA implementation. One or more of the line time, the current CCA's contention window length, and the current CCA's backoff count value.

FIG. 16 is a schematic structural diagram of Embodiment 1 of a network device according to an embodiment of the present invention. As shown in FIG. 16, the network device device may include: a sending module 31 and a receiving module 32;

The sending module 31 is configured to send first control information to the terminal device in the first subframe, and send second control information to the terminal device in the second subframe, where the first control information is used to indicate the terminal The information of the first time of the first uplink subframe is occupied by the device when the uplink data is sent by the first carrier; the second control information is used to indicate that the terminal device occupies the first uplink subframe when sending the uplink data by using the first carrier Information of the second time; the first subframe is earlier than the second subframe;

The receiving module 32 is configured to receive uplink data sent by the terminal device at a second time of the first uplink subframe.

The network device provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.

FIG. 17 is a schematic structural diagram of Embodiment 2 of a network device according to an embodiment of the present invention. As shown in FIG. 17, the network device device may include:

The sending module 41 is configured to send first control information to the terminal device in the first subframe, and send second control information to the terminal device in the second subframe, where the first control information is used to indicate the terminal The first idle channel used by the device in the time of the first uplink subframe evaluates the information of the CCA; the second control information includes used to indicate that the terminal device uses the time in the first uplink subframe. Information of the second CCA; the first subframe is earlier than the second subframe.

Continuing to refer to FIG. 17 above, the network device may further include:

The first detecting module 42 is configured to: after the sending, by the sending module 41, send the second control information to the terminal device in the second subframe, in the first uplink subframe, or in the first The second uplink subframe adjacent to the uplink subframe detects the uplink data sent by the terminal device.

FIG. 18 is a schematic structural diagram of Embodiment 3 of a network device according to an embodiment of the present invention. As shown in FIG. 18, in the embodiment, the foregoing first control information may further include indicating that the terminal device sends by using a first carrier. When the uplink data occupies the information of the first time of the first uplink subframe, the second control information further includes: when the terminal device sends the uplink data by using the first carrier, the first uplink subframe is occupied. Second time information;

In this implementation manner, as shown in FIG. 18, the foregoing network device may further include:

The second detecting module 43 is configured to detect the terminal device at a second time of the first uplink subframe after the sending module 41 sends the second control information to the terminal device in the second subframe. The uplink data sent.

Optionally, the information of the foregoing first CCA and the information of the second CCA may include: whether the indication information of the CCA is currently required to be performed, the evaluation type of the current CCA, the execution time of the current CCA, and the length of the competition window of the current CCA. One or more of the current CCA backoff count values.

FIG. 19 is a schematic structural diagram of Embodiment 5 of a terminal device according to an embodiment of the present invention. As shown in FIG. 19, the terminal device may include: an obtaining module 51 and a sending module 52;

The obtaining module 51 is configured to obtain first indication information in the first control information, where the first control information is used to schedule the terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where The first indication information is used to indicate a state in which the terminal device sends the start time of the uplink data in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is the first uplink subframe set. a set of uplink subframes other than the first uplink subframe in time;

The sending module 52 is configured to send uplink data in each uplink subframe of the second uplink subframe set according to the first indication information in the first control information acquired by the acquiring module 51.

The state of the start time indicated by the first indication information is that the start time of the uplink data sent by the terminal device in the M uplink subframes in the second uplink subframe set is the first reference time, and The start time of the uplink data sent by the terminal device in the NM uplink subframes in the second uplink subframe set is a second reference time, where the first reference time and the second reference time The difference is that the N is the number of uplink subframes included in the second uplink subframe set, and M is not greater than 1.

Optionally, the first control information further includes: information indicating that the terminal device performs the idle channel evaluation CCA in the time of the M uplink subframes in the second uplink subframe set, where the performing CCA The information includes one or more of the type of evaluation performing the CCA, the time range in which the CCA is executed, the length of the competition window in which the CCA is executed, and the backoff count value in the execution of the CCA.

Optionally, the first control information further includes second indication information, where the second indication information is used to indicate a status of the end time of the uplink data sent by the terminal device in the second uplink subframe, where the The second uplink subframe is the last uplink subframe in the first uplink subframe set, and the state in which the terminal device sends the uplink data end time in the second uplink subframe is the third reference time or the fourth reference time. The third reference time and the fourth reference time are different.

FIG. 20 is a schematic structural diagram of Embodiment 6 of a terminal device according to an embodiment of the present invention. As shown in FIG. 20, the terminal device may include: an obtaining module 61 and a sending module 62.

The obtaining module 61 is configured to obtain first indication information in the first control information, where the first control information is used to schedule the terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where The first indication information is used to indicate a state in which the terminal device sends the end time of the uplink data in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is in the first uplink subframe set. a set of uplink subframes other than the last uplink subframe in time;

The sending module 62 is configured to send uplink data in each uplink subframe of the second uplink subframe set according to the first indication information in the first control information acquired by the acquiring module 61.

FIG. 21 is a schematic structural diagram of Embodiment 4 of a network device according to an embodiment of the present invention. As shown in FIG. 21, the network device may include: a determining module 71 and a sending module 72.

The determining module 71 is configured to determine to send the first control information to the terminal device, where the first control information includes first indication information, where the first control information is used to schedule the terminal device to be in the first uplink subframe set. Each of the uplink subframes transmits the uplink data, where the first indication information is used to indicate a state in which the terminal device sends the start time of the uplink data in each uplink subframe in the second uplink subframe set, where the second uplink sub-frame The frame set is a set of uplink subframes other than the first uplink subframe in the first uplink subframe set;

The sending module 72 is configured to send the first control information to the terminal device.

Optionally, the first control information further includes second indication information, where the second indication information is used to indicate a status of the end time of the uplink data sent by the terminal device in the second uplink subframe, where the The second uplink subframe is the last uplink subframe in the first uplink subframe set, and the state in which the terminal device sends the uplink data end time in the second uplink subframe is the third reference time or the fourth reference time. The third reference time is different from the fourth reference time.

FIG. 22 is a schematic structural diagram of Embodiment 5 of a network device according to an embodiment of the present invention. As shown in FIG. 22, the network device may include: a determining module 81 and a sending module 82.

The determining module 81 is configured to determine to send the first control information to the terminal device, where the first control information includes first indication information, where the first control information is used to schedule the terminal device to be in the first uplink subframe set. Each of the uplink subframes is configured to send uplink data, where the first indication information is used to indicate a state in which the terminal device sends an uplink data end time in each uplink subframe in the second uplink subframe set, where the second uplink subframe The set is a set of uplink subframes other than the last uplink subframe in the first uplink subframe set;

The sending module 82 is configured to send the first control information to the terminal device.

Optionally, the first control information further includes: information indicating that the terminal device performs the idle channel evaluation CCA in the time of the M uplink subframes in the second uplink subframe set, where The information for performing the CCA includes one or more of the evaluation type of performing the CCA, the time range in which the CCA is executed, the length of the competition window in which the CCA is executed, and the back-off count value in the execution of the CCA.

FIG. 23 is a schematic structural diagram of Embodiment 7 of a terminal device according to an embodiment of the present invention. As shown in FIG. 23, the terminal device may include: a receiver 91 and a transmitter 92, where the receiver 91 and the transmitter 92 may be integrated in The transceiver of the terminal device may also be an independent transmitting and receiving antenna on the terminal device.

The receiver 91 is configured to receive first control information that is sent by the network device in the first subframe, where the first control information is used to indicate that the terminal device occupies the first uplink subframe when sending uplink data by using the first carrier. First time information;

The receiver 91 is further configured to receive second control information that is sent by the network device in a second subframe, where the second control information is used to indicate that the terminal device sends uplink data by using the first carrier. And occupying information of the second time of the first uplink subframe; the first subframe is earlier than the second subframe;

The transmitter 92 is configured to send uplink data by using the first carrier at a second time of the first uplink subframe.

FIG. 24 is a schematic structural diagram of Embodiment 8 of a terminal device according to an embodiment of the present invention. As shown in FIG. 24, the terminal device may include: a receiver 101, a processor 102 (for example, a CPU), where the receiver 101 may be integrated in The transceiver of the terminal device may also be an independent transmitting and receiving antenna on the terminal device.

The receiver 101 is configured to receive first control information that is sent by the network device in the first subframe, where the first control information is used to indicate that the terminal device uses the first idle time in the time of the first uplink subframe. Channel evaluation CCA information;

The receiver 101 is further configured to receive second control information that is sent by the network device in a second subframe, where the second control information includes a time for indicating that the terminal device is in the first uplink subframe Information of the second CCA used therein; the first subframe is earlier than the second subframe;

The processor 102 is configured to perform CCA in the first uplink subframe according to the information about the second CCA included in the second control information received by the receiver 101.

Figure 25 is a schematic structural diagram of a ninth embodiment of a terminal device according to an embodiment of the present invention, as shown in Figure 25, further, based on the foregoing embodiment, the terminal device may further include: a transmitter 103;

The processor 102 is further configured to obtain, after performing CCA in the first uplink subframe, according to information about the second CCA included in the second control information received by the receiver 101, CCA evaluation results;

The transmitter 103 is configured to: when the channel C is obtained by the processor 102, the channel is idle, the first carrier is in the first uplink subframe, or The second uplink subframe adjacent to an uplink subframe transmits uplink data; the first uplink subframe is earlier than the second uplink subframe.

In another implementation manner of the present invention, the first control information further includes information for indicating that the terminal device occupies a first time of the first uplink subframe when the uplink data is sent by using the first carrier, where the second The control information further includes information for indicating that the terminal device occupies the second time of the first uplink subframe when transmitting the uplink data by using the first carrier;

The processor 102 is further configured to obtain, after performing CCA in the first uplink subframe, according to the information about the second CCA included in the second control information received by the receiver 101. CCA evaluation results;

The transmitter 103 is configured to send uplink data by using the first carrier in a second time of the first uplink subframe when the evaluation result of the CCA acquired by the processor 102 is that the channel is idle.

FIG. 26 is a schematic structural diagram of Embodiment 6 of a network device according to an embodiment of the present invention. As shown in FIG. 26, the network device may include: a transmitter 111 and a receiver 112. The transmitter 111 and the receiver 112 may be integrated in In the transceiver of the network device, it can also be an independent transmitting and receiving antenna on the network device.

The transmitter 111 is configured to send first control information to the terminal device in the first subframe, and send second control information to the terminal device in the second subframe, where the first control information is used to indicate the terminal The information of the first time of the first uplink subframe is occupied by the device when the uplink data is sent by the first carrier; the second control information is used to indicate that the terminal device occupies the first uplink subframe when sending the uplink data by using the first carrier Information of the second time; the first subframe is earlier than the second subframe;

The receiver 112 is configured to receive uplink data sent by the terminal device at a second time of the first uplink subframe.

FIG. 27 is a schematic structural diagram of Embodiment 7 of a network device according to an embodiment of the present invention. As shown in FIG. 27, the network device may include: a transmitter 121. The transmitter 121 may be integrated in a transceiver of the network device. It can also be an independent transceiver antenna on a network device.

The transmitter 121 is configured to send first control information to the terminal device in the first subframe, and send second control information to the terminal device in the second subframe, where the first control information is used to indicate the terminal The first idle channel used by the device in the time of the first uplink subframe evaluates the information of the CCA; and the second control information includes, when the terminal device is in the first uplink subframe, Information of the second CCA used in between; the first subframe is earlier than the second subframe.

With continued reference to FIG. 27, optionally, the foregoing network device may further include:

The receiver 122 is configured to, after the transmitter 121 sends the second control information to the terminal device in the second subframe, in the first uplink subframe, or in the first uplink subframe The second uplink subframe adjacent to the frame detects uplink data sent by the terminal device.

In another implementation manner of the present invention, the first control information further includes information for indicating that the terminal device occupies a first time of the first uplink subframe when the uplink data is sent by using the first carrier, where the second control is performed. The information further includes information for indicating that the terminal device occupies the second time of the first uplink subframe when the uplink data is sent by using the first carrier;

In this embodiment, the receiver 122 is configured to: after the transmitter 121 sends the second control information to the terminal device in the second subframe, in the second uplink of the first uplink subframe. Time detecting the uplink data sent by the terminal device.

Optionally, the information about the foregoing first CCA and the information of the second CCA include: whether the indication information of the current CCA is currently required, the evaluation type of the current CCA, the execution time of the current CCA, the length of the competition window of the current CCA, One or more of the current CCA backoff count values.

FIG. 28 is a schematic structural diagram of Embodiment 10 of a terminal device according to an embodiment of the present disclosure. As shown in FIG. 28, the terminal device may include: a processor 131 (for example, a CPU) and a transmitter 132. The transmitter 132 may be integrated in the The transceiver of the terminal device may also be an independent transmitting and receiving antenna on the terminal device.

The processor 131 is configured to acquire first indication information in the first control information, where the first control information is used to schedule the terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where The first indication information is used to indicate a state in which the terminal device sends the start time of the uplink data in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is the first uplink subframe set. a set of uplink subframes other than the first uplink subframe in time;

The transmitter 132 is configured to send uplink data in each uplink subframe of the second uplink subframe set according to the first indication information in the first control information that is obtained by the processor 131.

FIG. 29 is a schematic structural diagram of Embodiment 11 of a terminal device according to an embodiment of the present disclosure. As shown in FIG. 29, the terminal device may include: a processor 141 (for example, a CPU) and a transmitter 142, where the transmitter 142 may be integrated. In the transceiver of the terminal device, it can also be an independent transmitting and receiving antenna on the terminal device.

The processor 141 is configured to acquire first indication information in the first control information, where the first control information is used to schedule the terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where The first indication information is used to indicate a state in which the terminal device sends the end time of the uplink data in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is in the first uplink subframe set. a set of uplink subframes other than the last uplink subframe in time;

The transmitter 142 is configured to send uplink data in each uplink subframe of the second uplink subframe set according to the first indication information in the first control information that is obtained by the processor 141.

FIG. 30 is a schematic structural diagram of Embodiment 8 of a network device according to an embodiment of the present invention. As shown in FIG. 30, the network device may include: a processor 151 and a transmitter 152. The transmitter 152 may be integrated and received in the network device. In the letter machine, it can also be an independent transmitting and receiving antenna on the network device.

The processor 151 is configured to determine to send the first control information to the terminal device, where the first control information includes first indication information, where the first control information is used to schedule the terminal device to be in the first uplink subframe set. Each of the uplink subframes transmits the uplink data, where the first indication information is used to indicate a state in which the terminal device sends the start time of the uplink data in each uplink subframe in the second uplink subframe set, where the second uplink sub-frame The frame set is a set of uplink subframes other than the first uplink subframe in the first uplink subframe set;

The transmitter 152 is configured to send the first control information to the terminal device.

FIG. 31 is a schematic structural diagram of Embodiment 9 of a network device according to an embodiment of the present invention. As shown in FIG. 31, the network device may include: a processor 161 and a transmitter 162. The transmitter 162 may be integrated and received in the network device. In the letter machine, it can also be an independent transmitting and receiving antenna on the network device.

The processor 161 is configured to determine to send the first control information to the terminal device, where the first control information includes first indication information, where the first control information is used to schedule the terminal device to be in the first uplink subframe set. Each of the uplink subframes is configured to send uplink data, where the first indication information is used to indicate a state in which the terminal device sends an uplink data end time in each uplink subframe in the second uplink subframe set, where the second uplink subframe The set is a set of uplink subframes other than the last uplink subframe in the first uplink subframe set;

The transmitter 162 is configured to send the first control information to the terminal device.

Optionally, the first control information further includes: information indicating that the terminal device performs the idle channel evaluation CCA in the time of the M uplink subframes in the second uplink subframe set, where the CCA information is executed. It includes one or more of the evaluation type of performing CCA, the time range of performing CCA, the length of the competition window performing CCA, and the backoff count value of performing CCA.

Optionally, the first control information further includes second indication information, where the second indication information is used to indicate a state in which the terminal device sends an uplink data end time in the second uplink subframe, where the second uplink is The subframe is the last uplink subframe in the first uplink subframe set, and the state in which the terminal device sends the uplink data end time in the second uplink subframe is the third reference time or the fourth reference time. The third reference time is different from the fourth reference time.

As described in the foregoing embodiment, the terminal device in the embodiment of the present invention may be a wireless terminal such as a mobile phone or a tablet computer. Therefore, the terminal device is used as a mobile phone as an example: FIG. 32 is a schematic diagram of the terminal device being a mobile phone according to an embodiment of the present invention. Structure diagram. Referring to FIG. 32, the mobile phone may include: a radio frequency (RF) circuit 1110, a memory 1120, an input unit 1130, a display unit 1140, a sensor 1150, an audio circuit 1160, a wireless fidelity (WiFi) module 1170, and processing. Device 1180, and power supply 1190 and other components. It will be understood by those skilled in the art that the structure of the handset shown in FIG. 32 does not constitute a limitation to the handset, and may include more or less components than those illustrated, or some components may be combined, or different components may be arranged.

The specific components of the mobile phone will be specifically described below with reference to FIG. 32:

The RF circuit 1110 can be used for receiving and transmitting signals during the transmission or reception of information or during a call. Specifically, after receiving the downlink information of the base station, the processing is performed by the processor 1180. In addition, the uplink data is sent to the base station. Generally, RF circuits include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, The RF circuit 1110 can also communicate with the network and other devices via wireless communication. The above wireless communication may use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division). Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), e-mail, Short Messaging Service (SMS), and the like.

The memory 1120 can be used to store software programs and modules, and the processor 1180 executes various functional applications and data processing of the mobile phone by running software programs and modules stored in the memory 1120. The memory 1120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to Data created by the use of the mobile phone (such as audio data, phone book, etc.). Moreover, memory 1120 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 1130 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function controls of the handset. Specifically, the input unit 1130 may include a touch panel 1131 and other input devices 1132. The touch panel 1131, also referred to as a touch screen, can collect touch operations on or near the user (such as the user using a finger, a stylus, or the like on the touch panel 1131 or near the touch panel 1131. Operation), and drive the corresponding connecting device according to a preset program. Optionally, the touch panel 1131 may include two parts: a touch detection device and a touch controller. Wherein, the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information. The processor 1180 is provided and can receive commands from the processor 1180 and execute them. In addition, the touch panel 1131 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 1131, the input unit 1130 may also include other input devices 1132. Specifically, other input devices 1132 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like.

The display unit 1140 can be used to display information input by the user or information provided to the user and A variety of menus for mobile phones. The display unit 1140 may include a display panel 1141. Alternatively, the display panel 1141 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. Further, the touch panel 1131 can be overlaid on the display panel 1141. When the touch panel 1131 detects a touch operation thereon or nearby, the touch panel 1131 transmits to the processor 1180 to determine the type of the touch event, and then the processor 1180 is The type of touch event provides a corresponding visual output on display panel 1141. Although the touch panel 1131 and the display panel 1141 are used as two independent components to implement the input and input functions of the mobile phone in FIG. 10, in some embodiments, the touch panel 1131 and the display panel 1141 may be integrated. Realize the input and output functions of the phone.

The handset may also include at least one type of sensor 1150, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 1141 according to the brightness of the ambient light, and the light sensor may close the display panel 1141 and/or when the mobile phone moves to the ear. Or backlight. As a kind of motion sensor, the acceleration sensor can detect the acceleration of each direction (usually three axes). When it is still, it can detect the magnitude and direction of gravity. It can be used to identify the gesture of the mobile phone (such as horizontal and vertical screen switching, related games). , magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as the mobile phone can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, no longer repeat .

Audio circuitry 1160, speaker 1161, and microphone 1162 can provide an audio interface between the user and the handset. The audio circuit 1160 can transmit the converted electrical data of the received audio data to the speaker 1161, and convert it into a sound signal output by the speaker 1161; on the other hand, the microphone 1162 converts the collected sound signal into an electrical signal, and the audio circuit 1160 After receiving, it is converted into audio data, and then processed by the audio data output processor 1180, transmitted to the other mobile phone via the RF circuit 1110, or outputted to the memory 1120 for further processing.

WiFi is a short-range wireless transmission technology. The mobile phone can help users to send and receive emails, browse web pages and access streaming media through the WiFi module 1170, which provides users with wireless broadband Internet access. Although FIG. 10 shows the WiFi module 1170, it can be understood that it does not belong to the essential configuration of the mobile phone, and may be omitted as needed within the scope of not changing the essence of the invention.

The processor 1180 is a control center for the handset that connects various portions of the entire handset with various interfaces and lines, by running or executing software programs and/or modules stored in the memory 1120, and The data stored in the memory 1120 is called, and various functions and processing data of the mobile phone are executed to perform overall monitoring of the mobile phone. Optionally, the processor 1180 may include one or more processing units; preferably, the processor 1180 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like. The modem processor primarily handles wireless communications. It will be appreciated that the above described modem processor may also not be integrated into the processor 1180.

The handset also includes a power source 1190 (such as a battery) that powers the various components. Preferably, the power source can be logically coupled to the processor 1180 via a power management system to manage functions such as charging, discharging, and power management through the power management system.

The mobile phone can also include a camera 1200, which can be a front camera or a rear camera. Although not shown, the mobile phone may further include a Bluetooth module, a GPS module, and the like, and details are not described herein again.

In the embodiment of the present invention, the processor 1180 included in the mobile phone may be used to perform the foregoing method for transmitting an uplink data. The implementation principle and technical effects are similar, and details are not described herein.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that Modifications may be made to the technical solutions described in the foregoing embodiments, or some or all of the technical features may be equivalently replaced. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

An uplink data transmission method, characterized in that the method comprises:

The terminal device receives the first control information that is sent by the network device in the first subframe, where the first control information is used to indicate that the terminal device occupies the first time of the first uplink subframe when sending the uplink data by using the first carrier. information;

Receiving, by the terminal device, the second control information that is sent by the network device in the second subframe, where the second control information is used to indicate that the terminal device occupies the first when sending uplink data by using the first carrier Information of a second time of the uplink subframe; the first subframe is earlier than the second subframe;

The terminal device sends uplink data in the second time of the first uplink subframe by using the first carrier.
The method according to claim 1, wherein the first subframe is a first downlink subframe or a first special subframe, and the second subframe is a second downlink subframe or a second special subframe. frame.
An uplink data transmission method, characterized in that the method comprises:

The terminal device receives the first control information that is sent by the network device in the first subframe; the first control information includes a first idle channel evaluation CCA used to indicate that the terminal device uses the time in the first uplink subframe. information;

Receiving, by the terminal device, second control information that is sent by the network device in a second subframe, where the second control information is used to indicate that the terminal device is used in a time of the first uplink subframe Information of the second CCA; the first subframe is earlier than the second subframe;

The terminal device performs CCA in the first uplink subframe according to the information of the second CCA.
The method according to claim 3, wherein the method further comprises: after the performing, by the terminal device, the CCA in the first uplink subframe according to the information of the second CCA, the method further comprises:

Obtaining the evaluation result of the CCA;

If the evaluation result of the CCA is that the channel is idle, the terminal device is in the first uplink subframe by using the first carrier, or in a second uplink subframe adjacent to the first uplink subframe. Transmitting uplink data; the first uplink subframe is earlier than the second uplink subframe.
The method according to claim 3, wherein the first control information further includes information for indicating that the terminal device occupies the first time of the first uplink subframe when transmitting the uplink data by using the first carrier, where The second control information further includes means for instructing the terminal device to pass the first A second time information of the first uplink subframe is occupied when a carrier sends uplink data;

The method further includes: after the performing, by the terminal device, the CCA in the first uplink subframe, according to the information about the second CCA, the method further includes:

Obtaining the evaluation result of the CCA;

If the evaluation result of the CCA is that the channel is idle, the terminal device sends uplink data by using the first carrier in the second time of the first uplink subframe.
The method according to any one of claims 3-5, wherein the information of the first CCA and the information of the second CCA include: whether the indication information of the CCA is currently required to be performed, and the current CCA evaluation. One or more of the type, the execution time of the current CCA, the contention window length of the current CCA, and the backoff count value of the current CCA.
The method according to any one of claims 3-6, wherein the first subframe is a first downlink subframe or a first special subframe, and the second subframe is a second downlink subframe. Or a second special subframe.
An uplink data transmission method, characterized in that the method comprises:

The network device sends the first control information to the terminal device in the first subframe. The first control information includes information used to indicate that the terminal device occupies the first time of the first uplink subframe when the uplink data is sent by using the first carrier. ;

Transmitting, by the network device, second control information to the terminal device in a second subframe, where the second control information is used to indicate that the terminal device occupies the first uplink subframe when transmitting uplink data by using the first carrier Two-time information; the first subframe is earlier than the second subframe;

The network device receives uplink data sent by the terminal device at a second time of the first uplink subframe.
The method according to claim 8, wherein the first subframe is a first downlink subframe or a first special subframe, and the second subframe is a second downlink subframe or a second special subframe. frame.
An uplink data transmission method, characterized in that the method comprises:

The network device sends the first control information to the terminal device in the first subframe; the first control information includes information used to indicate the first idle channel evaluation CCA used by the terminal device in the time of the first uplink subframe. ;

The network device sends second control information to the terminal device in a second subframe, where the second control information is used to indicate that the terminal device is used in the time of the first uplink subframe. Information of the second CCA; the first subframe is earlier than the second subframe.
The method according to claim 10, wherein after the network device sends the second control information to the terminal device in the second subframe, the method further includes:

The network device detects uplink data sent by the terminal device in the first uplink subframe or in a second uplink subframe adjacent to the first uplink subframe.
The method according to claim 10, wherein the first control information further includes information for indicating that the terminal device occupies the first time of the first uplink subframe when transmitting the uplink data by using the first carrier, where The second control information further includes information for indicating that the terminal device occupies the second time of the first uplink subframe when the uplink data is sent by using the first carrier;

After the network device sends the second control information to the terminal device in the second subframe, the method further includes:

The network device detects uplink data sent by the terminal device at a second time of the first uplink subframe.
The method according to any one of claims 10 to 12, wherein the information of the first CCA and the information of the second CCA include: whether the indication information of the CCA is currently required to be performed, and the current CCA evaluation. One or more of the type, the execution time of the current CCA, the contention window length of the current CCA, and the backoff count value of the current CCA.
The method according to any one of claims 10 to 13, wherein the first subframe is a first downlink subframe or a first special subframe, and the second subframe is a second downlink subframe. Or a second special subframe.
An uplink data transmission method, characterized in that the method comprises:

The terminal device acquires first indication information in the first control information, where the first control information is used to schedule the terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where the first indication information a state for indicating a start time of the uplink data sent by the terminal device in each uplink subframe of the second uplink subframe set, where the second uplink subframe set is the time of the first uplink subframe set a set of uplink subframes other than the first uplink subframe;

Transmitting, by the terminal device, uplink data in each uplink subframe of the second uplink subframe set according to the first indication information;

The state of the start time indicated by the first indication information is that the start time of the uplink data sent by the terminal device in the M uplink subframes in the second uplink subframe set is the first reference time. And the start time of the uplink data sent by the terminal device in the NM uplink subframes in the second uplink subframe set is a second reference time, where the first reference time and the second reference time are different The N is the number of uplink subframes included in the second uplink subframe set, and M is not greater than 1.
The method according to claim 15, wherein the first control information further comprises: instructing the terminal device to perform an idle channel in the time of the M uplink subframes in the second uplink subframe set The information of the CCA is evaluated, and the information of the execution CCA includes one or more of the evaluation type of performing CCA, the time range of performing CCA, the length of the competition window performing CCA, and the backoff count value of performing CCA.
The method according to claim 15 or 16, wherein the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device sends in the second uplink subframe a state of the end time of the uplink data, where the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the terminal device sends the uplink data end time in the second uplink subframe. The state is a third reference time or a fourth reference time, the third reference time being different from the fourth reference time.
An uplink data transmission method, characterized in that the method comprises:

The terminal device acquires first indication information in the first control information, where the first control information is used to schedule the terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where the first indication information a state for instructing the terminal device to send an end time of the uplink data in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is the last in the first uplink subframe set a set of uplink subframes other than an uplink subframe;

Transmitting, by the terminal device, uplink data in each uplink subframe of the second uplink subframe set according to the first indication information;

The state of the end time indicated by the first indication information is that the end time of the terminal device transmitting the uplink data in the M uplink subframes in the second uplink subframe set is the first reference time, and the The ending time of the uplink data sent by the terminal device in the NM uplink subframes in the second uplink subframe set is a second reference time, where the first reference time and the second reference time are different, where the N For the number of uplink subframes included in the second uplink subframe set, M is not greater than 1.
The method according to claim 18, wherein said first control information is further included Instructing the terminal device to perform information of the idle channel evaluation CCA in the time of the M uplink subframes in the second uplink subframe set, where the information of performing the CCA includes performing the CCA evaluation type, and performing CCA One or more of the time range, the length of the contention window performing the CCA, and the backoff count value of the CCA.
The method according to claim 18 or 19, wherein the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device sends in the second uplink subframe. a state of the end time of the uplink data, where the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the terminal device sends the uplink data end time in the second uplink subframe. The state is a third reference time or a fourth reference time, the third reference time being different from the fourth reference time.
An uplink data transmission method, characterized in that the method comprises:

The network device determines to send the first control information to the terminal device, where the first control information includes first indication information, where the first control information is used to schedule each uplink sub-subject of the terminal device in the first uplink subframe set. The frame sends the uplink data, where the first indication information is used to indicate a state in which the terminal device sends the start time of the uplink data in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is a set of uplink subframes other than the first uplink subframe in the first uplink subframe set;

Sending, by the network device, the first control information to the terminal device;

The state of the start time indicated by the first indication information is that the start time of the uplink data sent by the terminal device in the M uplink subframes in the second uplink subframe set is the first reference time, and The start time of the uplink data sent by the terminal device in the NM uplink subframes in the second uplink subframe set is a second reference time, where the first reference time and the second reference time are different, where N is the number of uplink subframes included in the second uplink subframe set, and M is not greater than 1.
The method according to claim 21, wherein the first control information further comprises: instructing the terminal device to perform an idle channel in the time of the M uplink subframes in the second uplink subframe set The information of the CCA is evaluated, and the information of the execution CCA includes one or more of the evaluation type of performing CCA, the time range of performing CCA, the length of the competition window performing CCA, and the backoff count value of performing CCA.
Method according to claim 21 or 22, wherein said first control letter And the second indication information is used to indicate a state in which the terminal device sends an uplink data end time in the second uplink subframe, where the second uplink subframe is the first a state in which the end time of the uplink data is sent by the terminal device in the last uplink subframe of the second uplink subframe is a third reference time or a fourth reference time, the third reference time and the first The four reference times are different.
An uplink data transmission method, characterized in that the method comprises:

The network device determines to send the first control information to the terminal device, where the first control information includes first indication information, where the first control information is used to schedule each uplink sub-subject of the terminal device in the first uplink subframe set. The frame transmits the uplink data, where the first indication information is used to indicate a state in which the terminal device sends the end time of the uplink data in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is the a set of uplink subframes other than the last uplink subframe in the first uplink subframe set;

Sending, by the network device, the first control information to the terminal device;

The state of the end time indicated by the first indication information is that the end time of the terminal device transmitting the uplink data in the M uplink subframes in the second uplink subframe set is the first reference time, and the The ending time of the uplink data sent by the terminal device in the NM uplink subframes in the second uplink subframe set is a second reference time, where the first reference time and the second reference time are different, where the N For the number of uplink subframes included in the second uplink subframe set, M is not greater than 1.
The method according to claim 24, wherein the first control information further comprises: instructing the terminal device to perform an idle channel in the time of the M uplink subframes in the second uplink subframe set The information of the CCA is evaluated, and the information of the execution CCA includes one or more of the evaluation type of performing CCA, the time range of performing CCA, the length of the competition window performing CCA, and the backoff count value of performing CCA.
The method according to claim 24 or 25, wherein the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device sends in the second uplink subframe a state of the end time of the uplink data, where the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the terminal device sends the uplink data end time in the second uplink subframe. The state is a third reference time or a fourth reference time, the third reference time being different from the fourth reference time.
A terminal device, the terminal device includes:

a receiving module, configured to receive first control information that is sent by the network device in the first subframe; where the first control information is used to indicate that the terminal device occupies the first uplink subframe when sending uplink data by using the first carrier Information for a time;

The receiving module is further configured to receive second control information that is sent by the network device in a second subframe, where the second control information is used to indicate that the terminal device is used when sending uplink data by using the first carrier. Information of the second time of the first uplink subframe; the first subframe is earlier than the second subframe;

And a sending module, configured to send, by using the first carrier, uplink data in a second time of the first uplink subframe.
The terminal device according to claim 27, wherein the first subframe is a first downlink subframe or a first special subframe, and the second subframe is a second downlink subframe or a second special Subframe.
A terminal device, the terminal device includes:

a receiving module, configured to receive first control information that is sent by the network device in the first subframe, where the first control information includes a first idle channel used to indicate that the terminal device uses the time in the first uplink subframe Evaluate CCA information;

The receiving module is further configured to receive second control information that is sent by the network device in a second subframe, where the second control information is used to indicate that the terminal device is in the time of the first uplink subframe Information of the second CCA used; the first subframe is earlier than the second subframe;

An execution module, configured to perform CCA in the first uplink subframe according to the information about the second CCA included in the second control information received by the receiving module.
The terminal device according to claim 29, wherein the terminal device further comprises:

a first acquiring module, configured to obtain, after the CCA is performed in the first uplink subframe, according to the information about the second CCA that is included in the second control information that is received by the receiving module, The results of the CCA evaluation;

a first sending module, when the evaluation result of the CCA acquired by the first acquiring module is that the channel is idle, the first carrier is in the first uplink subframe, or The second uplink subframe adjacent to an uplink subframe transmits uplink data; the first uplink subframe is earlier than the second uplink subframe.
The terminal device according to claim 29, wherein the first control information further includes information for indicating that the terminal device occupies a first time of the first uplink subframe when transmitting the uplink data by using the first carrier, The second control information further includes information for indicating that the terminal device occupies the second time of the first uplink subframe when the uplink data is sent by using the first carrier;

The terminal device further includes:

a second acquiring module, configured to obtain, after the CCA performs the CCA in the first uplink subframe, according to the information about the second CCA that is included in the second control information that is received by the receiving module The results of the CCA evaluation;

And a second sending module, configured to send uplink data by the first carrier in a second time of the first uplink subframe, when the evaluation result of the CCA acquired by the second acquiring module is that the channel is idle.
The terminal device according to any one of claims 29 to 31, wherein the information of the first CCA and the information of the second CCA include: whether the indication information of the CCA is currently required to be executed, and the current CCA One or more of the evaluation type, the current CCA execution time, the current CCA's contention window length, and the current CCA's backoff count value.
The terminal device according to any one of claims 29 to 32, wherein the first subframe is a first downlink subframe or a first special subframe, and the second subframe is a second downlink subframe. Frame or second special subframe.
A network device, where the network device includes:

a sending module, configured to send first control information to the terminal device in the first subframe, and send second control information to the terminal device in the second subframe, where the first control information is used to indicate the terminal device The information of the first time of the first uplink subframe is occupied by the first carrier when the uplink data is sent by the first carrier; the second control information is used to indicate that the terminal device occupies the first uplink subframe when sending the uplink data by using the first carrier Information of the second time; the first subframe is earlier than the second subframe;

The receiving module is configured to receive uplink data sent by the terminal device at a second time of the first uplink subframe.
The network device according to claim 34, wherein the first subframe is a first downlink subframe or a first special subframe, and the second subframe is a second downlink subframe or a second special Subframe.
A network device, where the network device includes:

a sending module, configured to send first control information to the terminal device in the first subframe, and in the second sub Transmitting, by the frame, the second control information to the terminal device, where the first control information includes information for indicating, by the terminal device, the first idle channel evaluation CCA used in the time of the first uplink subframe; The second control information includes information indicating a second CCA used by the terminal device in the time of the first uplink subframe; the first subframe is earlier than the second subframe.
The network device according to claim 36, wherein the network device further comprises:

a first detecting module, after the sending module sends the second control information to the terminal device in the second subframe, in the first uplink subframe, or in the first uplink subframe The second uplink subframe adjacent to the frame detects uplink data sent by the terminal device.
The network device according to claim 36, wherein the first control information further includes information for indicating that the terminal device occupies the first time of the first uplink subframe when transmitting the uplink data by using the first carrier, The second control information further includes information for indicating that the terminal device occupies the second time of the first uplink subframe when the uplink data is sent by using the first carrier;

The network device further includes:

a second detecting module, configured to detect, after the sending module sends the second control information to the terminal device in the second subframe, the second terminal detects the sending of the terminal device Upstream data.
The network device according to any one of claims 36 to 38, wherein the information of the first CCA and the information of the second CCA include: whether the indication information of the CCA is currently required to be executed, and the current CCA One or more of the evaluation type, the current CCA execution time, the current CCA's contention window length, and the current CCA's backoff count value.
The network device according to any one of claims 36 to 39, wherein the first subframe is a first downlink subframe or a first special subframe, and the second subframe is a second downlink subframe. Frame or second special subframe.
A terminal device, the terminal device includes:

An acquiring module, configured to acquire first indication information in the first control information, where the first control information is used to schedule the terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where the An indication information is used to indicate a state in which the terminal device sends the start time of the uplink data in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is in the first uplink subframe set. a set of uplink subframes other than the first uplink subframe in time;

a sending module, configured to send uplink data in each uplink subframe of the second uplink subframe set according to the first indication information in the first control information acquired by the acquiring module;

The state of the start time indicated by the first indication information is that the start time of the uplink data sent by the terminal device in the M uplink subframes in the second uplink subframe set is the first reference time, and The start time of the uplink data sent by the terminal device in the NM uplink subframes in the second uplink subframe set is a second reference time, where the first reference time and the second reference time are different, where The N is the number of uplink subframes included in the second uplink subframe set, and M is not greater than 1.
The terminal device according to claim 41, wherein the first control information further comprises: instructing the terminal device to perform idle in the time of the M uplink subframes in the second uplink subframe set The channel evaluates the information of the CCA, and the information of the execution CCA includes one or more of an evaluation type of performing CCA, a time range of performing CCA, a contention window length of performing CCA, and a backoff count value of performing CCA.
The terminal device according to claim 41 or 42, wherein the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the second uplink subframe a state in which the end time of the uplink data is sent, the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the end time of the uplink data sent by the terminal device in the second uplink subframe The state of the third reference time or the fourth reference time is different, and the third reference time and the fourth reference time are different.
A terminal device, the terminal device includes:

An acquiring module, configured to acquire first indication information in the first control information, where the first control information is used to schedule the terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where the An indication information is used to indicate a state in which the terminal device sends an uplink data end time in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is in the first uplink subframe set. a set of uplink subframes other than the last uplink subframe in time;

a sending module, configured to send uplink data in each uplink subframe of the second uplink subframe set according to the first indication information in the first control information acquired by the acquiring module;

The state of the end time indicated by the first indication information is that the end time of the terminal device transmitting the uplink data in the M uplink subframes in the second uplink subframe set is the first reference time, and the Transmitting, by the terminal device, the NM uplink subframes in the second uplink subframe set The end time of the line data is the second reference time, where the first reference time is different from the second reference time, where the N is the number of uplink subframes included in the second uplink subframe set, M is not greater than 1.
The terminal device according to claim 44, wherein the first control information further comprises: instructing the terminal device to perform idle in the time of the M uplink subframes in the second uplink subframe set The channel evaluates the information of the CCA, and the information of the execution CCA includes one or more of an evaluation type of performing CCA, a time range of performing CCA, a contention window length of performing CCA, and a backoff count value of performing CCA.
The terminal device according to claim 44 or 45, wherein the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the second uplink subframe a state in which the end time of the uplink data is sent, the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the end time of the uplink data sent by the terminal device in the second uplink subframe The state of the third reference time or the fourth reference time is different, and the third reference time and the fourth reference time are different.
A network device, where the network device includes:

a determining module, configured to send the first control information to the terminal device, where the first control information includes first indication information, where the first control information is used to schedule the terminal device in the first uplink subframe set Each of the uplink subframes sends uplink data, where the first indication information is used to indicate a state in which the terminal device sends the start time of the uplink data in each uplink subframe in the second uplink subframe set, and the second uplink subframe The set is a set of uplink subframes other than the first uplink subframe in the first uplink subframe set;

a sending module, configured to send the first control information to the terminal device;

The state of the start time indicated by the first indication information is that the start time of the uplink data sent by the terminal device in the M uplink subframes in the second uplink subframe set is the first reference time, and The start time of the uplink data sent by the terminal device in the NM uplink subframes in the second uplink subframe set is a second reference time, where the first reference time and the second reference time are different, where N is the number of uplink subframes included in the second uplink subframe set, and M is not greater than 1.
The network device according to claim 47, wherein the first control information further comprises: indicating, by the terminal device, the M uplink subframes in the second uplink subframe set The information of the CCA is performed in the time period, and the information of the CCA is executed, including one of the evaluation type of performing the CCA, the time range of performing the CCA, the length of the contention window of the CCA, and the backoff count value of the CCA.
The network device according to claim 47 or 48, wherein the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the second uplink subframe a state in which the end time of the uplink data is sent, the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the terminal device sends the end time of the uplink data in the second uplink subframe. The third reference time or the fourth reference time is different from the fourth reference time.
A network device, where the network device includes:

a determining module, configured to send the first control information to the terminal device, where the first control information includes first indication information, where the first control information is used to schedule the terminal device in the first uplink subframe set Each of the uplink subframes is configured to send uplink data, where the first indication information is used to indicate a state in which the terminal device sends an uplink data end time in each uplink subframe in the second uplink subframe set, where the second uplink subframe set And a set of uplink subframes other than the last uplink subframe in the first uplink subframe set;

a sending module, configured to send the first control information to the terminal device;

The state of the end time indicated by the first indication information is that the end time of the terminal device transmitting the uplink data in the M uplink subframes in the second uplink subframe set is the first reference time, and the The ending time of the uplink data sent by the terminal device in the NM uplink subframes in the second uplink subframe set is a second reference time, where the first reference time and the second reference time are different, where the N For the number of uplink subframes included in the second uplink subframe set, M is not greater than 1.
The network device according to claim 50, wherein the first control information further comprises: instructing the terminal device to perform idle in the time of the M uplink subframes in the second uplink subframe set The channel evaluates the information of the CCA, and the information of the execution CCA includes one or more of an evaluation type of performing CCA, a time range of performing CCA, a contention window length of performing CCA, and a backoff count value of performing CCA.
The network device according to claim 50 or claim 51, wherein the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the a state in which the second uplink subframe transmits an end time of the uplink data, where the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the terminal device is in the second uplink subframe The state of the end time of transmitting the uplink data is the third reference time or the fourth reference time, and the third reference time and the fourth reference time are different.
A terminal device, the terminal device includes:

a receiver, configured to receive first control information that is sent by the network device in the first subframe; where the first control information is used to indicate that the terminal device occupies the first uplink subframe when sending uplink data by using the first carrier Information for a time;

The receiver is further configured to receive second control information that is sent by the network device in a second subframe, where the second control information is used to indicate that the terminal device is used when sending uplink data by using the first carrier. Information of the second time of the first uplink subframe; the first subframe is earlier than the second subframe;

And a transmitter, configured to send, by using the first carrier, uplink data in a second time of the first uplink subframe.
The terminal device according to claim 53, wherein the first subframe is a first downlink subframe or a first special subframe, and the second subframe is a second downlink subframe or a second special Subframe.
A terminal device, the terminal device includes:

a receiver, configured to receive first control information that is sent by the network device in the first subframe; the first control information includes a first idle channel used to indicate that the terminal device uses the time in the first uplink subframe Evaluate CCA information;

The receiver is further configured to receive second control information that is sent by the network device in a second subframe, where the second control information is used to indicate that the terminal device is in the time of the first uplink subframe Information of the second CCA used; the first subframe is earlier than the second subframe;

And a processor, configured to perform CCA in the first uplink subframe according to the information about the second CCA included in the second control information received by the receiver.
The terminal device according to claim 55, wherein the terminal device further comprises: a transmitter;

The processor is further configured to obtain the CCA after performing CCA in the first uplink subframe according to the information about the second CCA included in the second control information received by the receiver. Evaluation results;

The transmitter, when the evaluation result of the CCA acquired by the processor is that the channel is idle, passing the first carrier in the first uplink subframe, or in the first uplink The second uplink subframe adjacent to the subframe transmits uplink data; the first uplink subframe is earlier than the second uplink subframe.
The terminal device according to claim 55, wherein the first control information further includes information for indicating that the terminal device occupies the first time of the first uplink subframe when transmitting the uplink data by using the first carrier, The second control information further includes information for indicating that the terminal device occupies the second time of the first uplink subframe when the uplink data is sent by using the first carrier;

The terminal device further includes: a transmitter;

The processor is further configured to obtain the CCA after performing CCA in the first uplink subframe according to the information about the second CCA included in the second control information received by the receiver. Evaluation results;

The transmitter is configured to send uplink data by using the first carrier in a second time of the first uplink subframe when the evaluation result of the CCA acquired by the processor is that the channel is idle.
The terminal device according to any one of claims 55 to 57, wherein the information of the first CCA and the information of the second CCA include: whether the indication information of the current CCA is currently required, and the current CCA One or more of the evaluation type, the current CCA execution time, the current CCA's contention window length, and the current CCA's backoff count value.
The terminal device according to any one of claims 55 to 58, wherein the first subframe is a first downlink subframe or a first special subframe, and the second subframe is a second downlink subframe. Frame or second special subframe.
A network device, where the network device includes:

a transmitter, configured to send first control information to the terminal device in the first subframe, and send second control information to the terminal device in the second subframe, where the first control information is used to indicate the terminal device The information of the first time of the first uplink subframe is occupied by the first carrier when the uplink data is sent by the first carrier; the second control information is used to indicate that the terminal device occupies the first uplink subframe when sending the uplink data by using the first carrier Information of the second time; the first subframe is earlier than the second subframe;

The receiver is configured to receive uplink data sent by the terminal device at a second time of the first uplink subframe.
The network device according to claim 60, wherein said first subframe is A downlink subframe or a first special subframe, where the second subframe is a second downlink subframe or a second special subframe.
A network device, where the network device includes:

a transmitter, configured to send first control information to the terminal device in the first subframe, and send second control information to the terminal device in the second subframe, where the first control information is used to indicate the terminal device The first idle channel used in the time of the first uplink subframe evaluates the information of the CCA; the second control information includes a first used to indicate that the terminal device uses the time in the first uplink subframe Information of the two CCAs; the first subframe is earlier than the second subframe.
The network device according to claim 62, wherein the network device further comprises:

a receiver, after the transmitter sends the second control information to the terminal device in the second subframe, in the first uplink subframe, or in the first uplink subframe The second uplink subframe of the neighbor detects the uplink data sent by the terminal device.
The network device according to claim 62, wherein the first control information further includes information for indicating that the terminal device occupies the first time of the first uplink subframe when transmitting the uplink data by using the first carrier, The second control information further includes information for indicating that the terminal device occupies the second time of the first uplink subframe when the uplink data is sent by using the first carrier;

The network device further includes:

a receiver, configured to detect uplink data sent by the terminal device at a second time of the first uplink subframe after the transmitter sends the second control information to the terminal device in the second subframe .
The network device according to any one of claims 62-64, wherein the information of the first CCA and the information of the second CCA both include: whether the indication information of the CCA is currently required to be executed, and the current CCA One or more of the evaluation type, the current CCA execution time, the current CCA's contention window length, and the current CCA's backoff count value.
The network device according to any one of claims 62 to 65, wherein the first subframe is a first downlink subframe or a first special subframe, and the second subframe is a second downlink subframe. Frame or second special subframe.
A terminal device, the terminal device includes:

a processor, configured to acquire first indication information in the first control information, where the first control information is used to schedule the terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where The first indication information is used to indicate a state in which the terminal device sends the start time of the uplink data in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is the first uplink subframe. a set of uplink subframes other than the first uplink subframe in time in the frame set;

a transmitter, configured to send uplink data in each uplink subframe of the second uplink subframe set according to the first indication information in the first control information that is acquired by the processor;

The state of the start time indicated by the first indication information is that the start time of the uplink data sent by the terminal device in the M uplink subframes in the second uplink subframe set is the first reference time, and The start time of the uplink data sent by the terminal device in the NM uplink subframes in the second uplink subframe set is a second reference time, where the first reference time and the second reference time are different, where The N is the number of uplink subframes included in the second uplink subframe set, and M is not greater than 1.
The terminal device according to claim 67, wherein the first control information further comprises: instructing the terminal device to perform idle in the time of the M uplink subframes in the second uplink subframe set The channel evaluates the information of the CCA, and the information of the execution CCA includes one or more of an evaluation type of performing CCA, a time range of performing CCA, a contention window length of performing CCA, and a backoff count value of performing CCA.
The terminal device according to claim 67 or 68, wherein the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the second uplink subframe a state in which the end time of the uplink data is sent, the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the end time of the uplink data sent by the terminal device in the second uplink subframe The state of the third reference time or the fourth reference time is different, and the third reference time and the fourth reference time are different.
A terminal device, the terminal device includes:

a processor, configured to acquire first indication information in the first control information, where the first control information is used to schedule the terminal device to send uplink data in each uplink subframe in the first uplink subframe set, where An indication information is used to indicate a state in which the terminal device sends an uplink data end time in each uplink subframe in the second uplink subframe set, where the second uplink subframe set is in the first uplink subframe set. a set of uplink subframes other than the last uplink subframe in time;

a transmitter, configured to send uplink data in each uplink subframe of the second uplink subframe set according to the first indication information in the first control information that is acquired by the processor;

The state of the end time indicated by the first indication information is that the end time of the terminal device transmitting the uplink data in the M uplink subframes in the second uplink subframe set is the first reference time, and the The ending time of the uplink data sent by the terminal device in the NM uplink subframes in the second uplink subframe set is a second reference time, where the first reference time and the second reference time are different, where the N For the number of uplink subframes included in the second uplink subframe set, M is not greater than 1.
The terminal device according to claim 70, wherein the first control information further comprises: instructing the terminal device to perform idle in the time of the M uplink subframes in the second uplink subframe set The channel evaluates the information of the CCA, and the information of the execution CCA includes one or more of an evaluation type of performing CCA, a time range of performing CCA, a contention window length of performing CCA, and a backoff count value of performing CCA.
The terminal device according to claim 70 or 71, wherein the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the second uplink subframe a state in which the end time of the uplink data is sent, the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the end time of the uplink data sent by the terminal device in the second uplink subframe The state of the third reference time or the fourth reference time is different, and the third reference time and the fourth reference time are different.
A network device, where the network device includes:

a processor, configured to send the first control information to the terminal device, where the first control information includes first indication information, where the first control information is used to schedule the terminal device in the first uplink subframe set Each of the uplink subframes sends uplink data, where the first indication information is used to indicate a state in which the terminal device sends the start time of the uplink data in each uplink subframe in the second uplink subframe set, and the second uplink subframe The set is a set of uplink subframes other than the first uplink subframe in the first uplink subframe set;

a transmitter, configured to send the first control information to the terminal device;

The state of the start time indicated by the first indication information is that the start time of the uplink data sent by the terminal device in the M uplink subframes in the second uplink subframe set is the first reference time, and The start time of the uplink data sent by the terminal device in the NM uplink subframes in the second uplink subframe set is a second reference time, where the first reference time and the second reference time are different, where N is the number of uplink subframes included in the second uplink subframe set, M Not more than 1.
The network device according to claim 73, wherein the first control information further comprises: instructing the terminal device to perform idle in the time of the M uplink subframes in the second uplink subframe set The channel evaluates the information of the CCA, and the information of the execution CCA includes one or more of an evaluation type of performing CCA, a time range of performing CCA, a contention window length of performing CCA, and a backoff count value of performing CCA.
The network device according to claim 73 or 74, wherein the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the second uplink subframe a state in which the end time of the uplink data is sent, the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the terminal device sends the end time of the uplink data in the second uplink subframe. The third reference time or the fourth reference time is different from the fourth reference time.
A network device, where the network device includes:

a processor, configured to send the first control information to the terminal device, where the first control information includes first indication information, where the first control information is used to schedule the terminal device in the first uplink subframe set Each of the uplink subframes is configured to send uplink data, where the first indication information is used to indicate a state in which the terminal device sends an uplink data end time in each uplink subframe in the second uplink subframe set, where the second uplink subframe set And a set of uplink subframes other than the last uplink subframe in the first uplink subframe set;

a transmitter, configured to send the first control information to the terminal device;

The state of the end time indicated by the first indication information is that the end time of the terminal device transmitting the uplink data in the M uplink subframes in the second uplink subframe set is the first reference time, and the The ending time of the uplink data sent by the terminal device in the NM uplink subframes in the second uplink subframe set is a second reference time, where the first reference time and the second reference time are different, where the N For the number of uplink subframes included in the second uplink subframe set, M is not greater than 1.
The network device according to claim 76, wherein the first control information further comprises: instructing the terminal device to perform idle in the time of the M uplink subframes in the second uplink subframe set The channel evaluates the information of the CCA, and the information for performing the CCA includes the type of the evaluation of performing the CCA, the time range for executing the CCA, the length of the competition window for executing the CCA, and the execution of the CCA. One or more of the backoff count values.
The network device according to claim 76 or 77, wherein the first control information further includes second indication information, where the second indication information is used to indicate that the terminal device is in the second uplink subframe a state in which the end time of the uplink data is sent, the second uplink subframe is the last uplink subframe in the first uplink subframe set, and the end time of the uplink data sent by the terminal device in the second uplink subframe The state of the third reference time or the fourth reference time is different, and the third reference time and the fourth reference time are different.