WO2019061085A1

WO2019061085A1 - Channel detection and information sending method and apparatus, and communication device

Info

Publication number: WO2019061085A1
Application number: PCT/CN2017/103730
Authority: WO
Inventors: 许宁
Original assignee: 北京小米移动软件有限公司
Priority date: 2017-09-27
Filing date: 2017-09-27
Publication date: 2019-04-04
Also published as: CN107820684B; CN107820684A

Abstract

The present disclosure relates to a channel detection and information sending method and apparatus, and a communication device. The method comprises: acquiring channel energy difference information about data sending performed by a second communication system by means of a beamforming technology, wherein the second communication system is a communication system sharing an unlicensed frequency spectrum; based on the channel energy difference information, determining a threshold value for evaluating a channel state of a channel to be detected when a communication device executes channel detection of the unlicensed frequency spectrum; and based on the result of a comparison between signal energy of the channel to be detected and the threshold value, determining the channel state of the channel to be detected. The technical solution of the present disclosure can modify, for the characteristics of data sending in narrow beam in 5G and based on channel energy difference information about a communication system sharing an unlicensed frequency spectrum, a preset threshold value used for channel detection, thus providing a high accuracy of system channel measurement in 5G and avoiding the problem of channel interference during unauthorized frequency spectrum sharing.

Description

Channel detection, information transmission method, device and communication device

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to a channel detection, information transmission method, apparatus, and communication device.

Background technique

With the rapid development of wireless communication technologies, most of the spectrum resources on the licensed spectrum are occupied by various communication systems. Therefore, in order to expand frequency resources and increase data transmission rate and throughput, Long Term Evolution (LTE) will be adopted. The operating frequency band is extended to the unlicensed spectrum, and wireless communication systems operating on the unlicensed spectrum require specially designed interference coordination and evasion methods, as well as the need to meet the set maximum transmit power limit and out-of-band spur indicators.

In the related art, in order to avoid interference, a communication device in an LTE system needs to detect signal energy in a system bandwidth on a working channel before transmitting data using an unlicensed spectrum, and only transmits data when the signal energy is lower than a preset threshold. However, in the fifth generation mobile communication technology (5th Generation, 5G for short) system, in order to improve energy efficiency and reduce system power consumption, data is generally transmitted by using a narrow beam. For a communication system using a narrow beam, when the device detects channel energy, it may only detect the sidelobe signal of its narrow beam, resulting in low energy of the detected signal, which may cause the device to mistake the occupied channel for idle. Channels, thereby accessing the channel and transmitting data, result in channel interference problems when sharing unlicensed spectrum.

Summary of the invention

In order to overcome the problems in the related art, the embodiments of the present disclosure provide a channel detection, an information sending method, a device, and a communication device, which are used to improve channel measurement accuracy in a 5G system, thereby avoiding channels when unlicensed spectrum sharing is performed. Interference to improve the efficiency and user experience of unlicensed spectrum.

According to a first aspect of the embodiments of the present disclosure, a channel detection method is provided, which is applied to a communication device in a first communication system, the method comprising:

Acquiring, by the second communication system, channel energy difference information for transmitting data by using a beamforming technology, where the second communication system is a communication system sharing an unlicensed spectrum;

Determining, according to the channel energy difference information, a threshold value for evaluating a channel state of a channel to be detected when the communication device performs channel detection of the unlicensed spectrum;

And determining a channel state of the to-be-detected channel based on a comparison result between the signal energy of the to-be-detected channel and the threshold.

In an embodiment, the threshold value for determining a channel state of a channel to be detected when the communication device performs channel detection of the unlicensed spectrum, based on the channel energy difference information, includes:

Determining that the channel detection time for performing the unlicensed spectrum belongs to a time set of the second communication system transmitting data by using a beamforming technology;

The threshold value is determined based on the channel energy difference information.

In an embodiment, determining, according to the channel energy difference information, a threshold value for evaluating a channel state of a channel to be detected when the communication device performs channel detection of the unlicensed spectrum, including:

The preset threshold value is corrected based on the channel energy difference information to obtain the threshold value.

In an embodiment, the preset threshold is modified based on the channel energy difference information, including:

And determining, according to the adjustment amount corresponding to the base station information of the second communication system and the channel energy difference information, the preset threshold value.

In an embodiment, acquiring channel energy difference information of the second communication system that uses the beamforming technology to transmit data includes:

Obtaining a broadcast message sent by the second communication system, and parsing the channel energy difference information from the broadcast message; or

Obtaining, by the cooperative interface with the second communication system, an indication message sent by the second communication system, and parsing the channel energy difference information from the indication message.

In an embodiment, determining a channel state of the to-be-detected channel based on a comparison between a signal energy of the to-be-detected channel and the threshold, includes:

If the signal energy value is lower than the threshold, determining that a channel state of the to-be-detected channel is an idle state;

If the signal energy value is not lower than the threshold, determining that the channel state of the to-be-detected channel is a non-idle state.

According to a second aspect of the embodiments of the present disclosure, there is provided an information transmitting method, which is applied to a communication device in a second communication system, the method comprising:

Determining channel energy difference information for transmitting data using beamforming techniques;

Sending a notification message to the communication device in the first communication system, wherein the notification message carries the channel energy difference information.

In an embodiment, a notification message is sent to a communication device in the first communication system, wherein the notification The message carries the channel energy difference information, including:

Sending a broadcast message, where the broadcast message carries the channel energy difference information; or

Sending an indication message to the first communication system by using a cooperative interface with the first communication system, where the indication message carries the channel energy difference information.

According to a third aspect of the embodiments of the present disclosure, there is provided a channel detecting apparatus, which is applied to a communication device in a first communication system, the apparatus comprising:

An acquiring module, configured to acquire channel energy difference information of a second communication system that uses a beamforming technology to transmit data, where the second communication system is a communication system that shares an unlicensed spectrum;

a first determining module, configured to determine, according to the channel energy difference information acquired by the acquiring module, a threshold value for evaluating a channel state of a channel to be detected when the communication device performs channel detection of the unlicensed spectrum ;

The second determining module is configured to determine a channel state of the to-be-detected channel based on a comparison result between a signal energy of the to-be-detected channel and the threshold determined by the first determining module.

In an embodiment, the first determining module comprises:

a first determining submodule configured to determine that a channel detection time for performing the unlicensed spectrum belongs to a time set of the second communication system transmitting data by using a beamforming technology;

And a second determining submodule configured to determine the threshold value based on the channel energy difference information.

In an embodiment, the first determining module comprises:

The correction submodule is configured to correct the preset threshold value based on the channel energy difference information to obtain the threshold value.

In an embodiment, the correction submodule is configured to correct the preset threshold value based on an adjustment amount corresponding to base station information of the second communication system and the channel energy difference information.

In an embodiment, the obtaining module comprises:

a first acquiring submodule configured to acquire a broadcast message sent by the second communication system, and parse the channel energy difference information from the broadcast message; or

a second obtaining submodule configured to acquire an indication message sent by the second communication system by using a collaboration interface with the second communication system, and parse the channel energy difference information from the indication message .

In an embodiment, the second determining module comprises:

a third determining submodule, configured to determine that a channel state of the to-be-detected channel is an idle state if the signal energy value is lower than the threshold value;

The fourth determining submodule is configured to determine that the channel state of the to-be-detected channel is a non-idle state if the signal energy value is not lower than the threshold.

According to a fourth aspect of the embodiments of the present disclosure, there is provided an information transmitting apparatus, which is applied to a communication device in a second communication system, the apparatus comprising:

a third determining module configured to determine channel energy difference information for transmitting data by using a beamforming technique;

The sending module is configured to send a notification message to the communication device in the first communication system, where the notification message carries the channel energy difference information.

In an embodiment, the sending module comprises:

The first sending submodule is configured to send a broadcast message, where the broadcast message carries the channel energy difference information; or

The second sending submodule is configured to send an indication message to the first communication system by using a cooperative interface with the first communication system, where the indication message carries the channel energy difference information.

According to a fifth aspect of the embodiments of the present disclosure, a channel detecting apparatus is provided, including:

processor;

a memory for storing processor executable instructions;

Wherein the processor is configured to:

According to a sixth aspect of the embodiments of the present disclosure, there is provided an information transmitting apparatus, including:

processor;

a memory for storing processor executable instructions;

Wherein the processor is configured to:

According to a seventh aspect of the embodiments of the present disclosure, there is provided a non-transitory computer readable storage medium having stored thereon computer instructions that, when executed by a processor, implement the following steps:

According to an eighth aspect of the embodiments of the present disclosure, there is provided a non-transitory computer readable storage medium having stored thereon computer instructions that, when executed by a processor, implement the following steps:

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

When the communication device performs the unlicensed spectrum channel detection, the channel energy difference information of the other communication systems sharing the unlicensed spectrum may be acquired, and based on the channel energy difference information, the threshold value for evaluating whether the channel to be detected is idle is corrected. The solution can correct the threshold value used for sharing the unlicensed spectrum channel detection for the characteristics of the narrow beam transmitting data in the 5G, thereby providing the channel measurement accuracy in the high 5G system and avoiding the channel when the unlicensed spectrum is shared. Interference problem.

The above general description and the following detailed description are intended to be illustrative and not restrictive.

DRAWINGS

The accompanying drawings, which are incorporated in the specification of FIG

FIG. 1A is a flowchart of a channel detecting method according to an exemplary embodiment.

FIG. 1B is a schematic diagram of an application scenario of a channel detection method according to an exemplary embodiment.

FIG. 2 is a flowchart of another channel detecting method according to an exemplary embodiment.

FIG. 3A is a flowchart 1 showing still another channel detecting method, according to an exemplary embodiment.

FIG. 3B is a flowchart 2 showing still another channel detecting method, according to an exemplary embodiment.

FIG. 4 is a flowchart of a method for transmitting information according to an exemplary embodiment.

FIG. 5 is a block diagram of a channel detecting apparatus according to an exemplary embodiment.

FIG. 6 is a block diagram of another channel detecting apparatus according to an exemplary embodiment.

FIG. 7 is a block diagram of an information transmitting apparatus according to an exemplary embodiment.

FIG. 8 is a block diagram of another information transmitting apparatus according to an exemplary embodiment.

FIG. 9 is a block diagram of a device suitable for channel detection and information transmission, according to an exemplary embodiment.

FIG. 10 is a block diagram of an apparatus suitable for channel detection and information transmission, according to an exemplary embodiment.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. The following description refers to the same or similar elements in the different figures unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with aspects of the invention as detailed in the appended claims.

1A is a flowchart of a channel detection method according to an exemplary embodiment, and FIG. 1B is a schematic diagram of an application scenario of a channel detection method according to an exemplary embodiment. The channel detection method may be applied to the first A communication device in a communication system, such as a UE or a base station, as shown in FIG. 1A, the channel detection method includes the following steps 101-103:

In step 101, channel energy difference information of the second communication system using the beamforming technology to transmit data is acquired, and the second communication system is a communication system sharing the unlicensed spectrum.

In an embodiment, a communication system sharing an unlicensed spectrum may share channel energy difference information caused by transmitting a data beam using a narrow beam to other communication systems, and the number of communication systems that generally share an unlicensed spectrum may be two or two. For example, in the embodiment of the present disclosure, two communication systems share an unlicensed spectrum as an example for description.

Referring to FIG. 1B, the first communication system 10 includes a base station 11 and a user equipment 12, and the second communication system 20 includes a base station 21 and a user equipment 22. Wherein, the first communication system 10 and the second communication system 20 share the unlicensed spectrum, and the base station 11 can share the channel energy difference information of the first communication system 10 using the narrow beam to transmit data on the unlicensed spectrum to the second communication system 20 ( Base station 21 and user equipment 22), base station 21 may share channel energy difference information for the second communication system 20 to transmit data over the unlicensed spectrum using narrow beams to first communication system 10 (base station 11 and user equipment 12).

Optionally, the first communication system 10 and the second communication system 20 can obtain channel energy difference information of the communication system sharing the unlicensed spectrum, and separately store channel energy difference information of the communication system sharing the unlicensed spectrum, The stored channel energy difference information can be obtained by querying during subsequent channel detection.

In step 102, based on the channel energy difference information, determining to perform the unlicensed frequency for evaluating the communication device The threshold value of the channel state of the channel to be detected when the channel is detected by the spectrum.

The channel to be detected is a channel shared by the first communication system and the second communication system, and the channel for transmitting data by using the beamforming technology in the second communication system indicated in step 101 is the same channel.

In an embodiment, referring to FIG. 1B, it is assumed that the base station 21 is transmitting data to the user equipment 22 using a narrow beam, and the base station 11 also has data to transmit to the user equipment 12, and therefore channel detection is required. The base station 11 can determine that the threshold to be compared is X_Thresh_max-H1 based on the locally stored channel energy difference information of the communication system sharing the unlicensed spectrum, where X_Thresh_max is a preset threshold and can be used as a non-shared unlicensed spectrum. The communication system is using the channel detection threshold value in the scenario where the narrow beam transmits data, and H1 is the channel energy difference value corresponding to the second communication system 20, which can be understood as the main communication channel when the second communication system 20 transmits data using the narrow beam. The gain value of the signal relative to the sidelobe signal.

In an embodiment, based on the adjustment amount corresponding to the base station information of the second communication system that uses the narrow beam to transmit data, and the channel energy of the communication system that uses the narrow beam to transmit data at the preset threshold value and the channel detection time. The difference value of the difference values is adjusted to obtain a channel detection threshold value for evaluating the channel state. For example, for different base stations of different operators, different adjustment amounts are configured, and an adjustment amount is added based on the above difference to obtain a final threshold value. The adjustment amount of each operator's base station may be specifically based on performance indicators of different operator equipment, such as the performance index of the equipment antenna. If the performance index is good, the signal strength of the main lobe signal may be much higher than that of the side lobe signal. For signal strength, the adjustment can be a large value.

In step 103, the channel state of the channel to be detected is determined based on a comparison result between the signal energy of the channel to be detected and the threshold value.

In an embodiment, when the signal energy value is lower than the threshold, the channel state of the channel to be detected may be determined to be an idle state; when the signal energy value is not lower than the threshold to be compared, the channel of the channel to be detected may be determined. The status is non-idle.

In this embodiment, by using the foregoing steps 101-103, when the communication device performs the unlicensed spectrum channel detection, the channel energy difference information of the other communication systems sharing the unlicensed spectrum may be acquired, and based on the channel energy difference information, the correction is used for A threshold value for evaluating whether the channel to be detected is idle. The solution can correct the threshold value used for sharing the unlicensed spectrum channel detection for the characteristics of the narrow beam transmitting data in the 5G, thereby providing the channel measurement accuracy in the high 5G system and avoiding the channel when the unlicensed spectrum is shared. Interference problem.

FIG. 2 is a flowchart of another channel detecting method according to an exemplary embodiment. As shown in FIG. 2, the method includes the following steps:

In step 201, the signal energy of the channel to be detected is measured.

In an embodiment, the communication technology that utilizes unlicensed spectrum resources, that is, the licensed spectrum auxiliary connection The communication device (Licensed Assisted Access, LAA for short) measures the signal energy of the channel to be detected when transmitting data, and determines whether the channel is not idle based on the signal energy of the channel.

In step 202, channel energy difference information of the second communication system using the beamforming technology to transmit data is acquired, and the second communication system is a communication system sharing the unlicensed spectrum.

In step 203, based on the channel energy difference information, a threshold value for evaluating a channel state of the channel to be detected when the communication device performs channel detection of the unlicensed spectrum is determined.

In an embodiment, before determining the threshold value based on the channel energy difference information, detecting whether the channel detection time for performing the unlicensed spectrum belongs to a time set of the second communication system transmitting data by using the beamforming technology, if yes, based on The channel energy difference information determines a threshold value. For example, the time set for the second communication system to transmit data by using the beamforming technique is 21:25:13, 14 seconds, and 53 seconds, on October 17, 2016; performing unlicensed spectrum The channel detection time is 21:25:33 on October 17, 2016. The latter detection time coincides with a time point at which the former transmits data, that is, the channel detection time is located in the second communication system using beamforming technology to transmit data. Within the time set, the threshold value can be determined based on the channel energy difference information.

It should be noted that the present disclosure includes, but is not limited to, determining a threshold value according to the above temporal relationship. For example, the time set may also be a parameter set including a sending period, a starting time, and a sending duration, where the sending period is a period in which the second communication system uses the beamforming technology to transmit data, and the starting time is a beam period in one period. The starting timing of the transmission of the technology, the duration of the transmission is the duration of the transmission using the beamforming technique in one cycle.

In an embodiment, the set of times at which the second communication system transmits data using the beamforming technique may be transmitted by the second communication system to the first communication system.

In an embodiment, referring to FIG. 1B, if the first communication system determines that the second communication system 20 is transmitting data on the unlicensed spectrum using the narrow beam when performing channel detection, the threshold value may be determined to be X_Thresh_max-H1. The X_Thresh_max is a preset threshold, and can be used as a channel detection threshold in a scenario in which a communication system that does not share an unlicensed spectrum is transmitting data using a narrow beam, and H1 is a channel energy difference value corresponding to the second communication system 20. It may be a gain value of the main lobe signal relative to the side lobe signal when the second communication system 20 transmits data using the narrow beam.

In an embodiment, the difference between the preset threshold value and the channel energy difference value may be adjusted based on the adjustment amount corresponding to the base station information of the second communication system that uses the narrow beam to transmit data, to obtain a required gate. Limit. For example, the adjustment amount of each operator's base station may be specifically based on performance indicators of different operator equipment, such as the performance index of the equipment antenna. If the performance index is good, the signal strength of the main lobe signal may be much higher than that of the side lobe signal. For signal strength, the adjustment amount can be a large value, and the adjustment amount can be positive or negative. In an embodiment, referring to FIG. 1B, if the first communication system uses the narrow beam to transmit data on the unlicensed spectrum when performing channel detection, the threshold value may be determined as X_Thresh_max-H1+. D; if the first communication system does not exist when performing channel detection, the second communication system uses narrow beams to transmit data on the unlicensed spectrum, then the threshold value may be determined to be X_Thresh_max.

In step 204, it is determined whether the signal energy of the channel to be detected is lower than a threshold. If the signal energy value is lower than the threshold, step 205 is performed. If the signal energy value is not lower than the threshold to be compared, the step is performed. 206.

In step 205, it is determined that the channel state of the channel to be detected is an idle state.

In step 206, it is determined that the channel state of the channel to be detected is a non-idle state.

In this embodiment, when the channel energy difference information of the second communication system sharing the unlicensed spectrum is acquired, the threshold value is determined based on the preset threshold value and the channel energy difference information of the communication system, so as to improve the system channel in the 5G. The accuracy of the measurement avoids the channel interference problem when the unlicensed spectrum is shared; in addition, by adjusting the threshold based on the base station information, the accuracy of the system channel measurement can be further improved.

3A is a flowchart 1 showing still another channel detecting method according to an exemplary embodiment, and FIG. 3B is a flowchart 2 showing still another channel detecting method according to an exemplary embodiment. This embodiment utilizes an embodiment of the present disclosure. The above method is provided as an example for how to obtain the channel energy difference information of the communication system sharing the unlicensed spectrum. As shown in FIG. 3A, the channel energy difference of the communication system for sharing the unlicensed spectrum is obtained by using the system broadcast message. The method of information includes the following steps:

In step 301, a broadcast message broadcast by a communication system sharing an unlicensed spectrum is intercepted.

In an embodiment, the base station or the user equipment can listen to broadcast messages, such as system messages or broadcast signals, sent by the communication system sharing the unlicensed spectrum through the 5G new air interface.

In step 302, channel energy difference information is parsed from the broadcast message.

In an embodiment, the channel energy difference information includes a transmission time at which the communication system transmits data using the narrow beam and a channel energy difference value.

In this embodiment, a method for obtaining channel energy difference information of a communication system sharing an unlicensed spectrum is provided through

steps

301 and 302, and the base station and the user equipment in a communication system can monitor the shared unlicensed spectrum. Broadcast messages of other communication systems, which in turn acquire channel energy difference information for communication systems sharing unlicensed spectrum.

As shown in FIG. 3B, a method for obtaining channel energy difference information of a communication system sharing an unlicensed spectrum through a wired cooperative interface between different systems includes the following steps:

In step 311, an indication message sent by the communication system sharing the unlicensed spectrum is acquired through a wired cooperative interface with the second communication system.

In an embodiment, the wired cooperative interface between different systems may be an Xn interface between the eLTE base station and the 5G base station, etc., from the base station of one communication system to the base station of another communication system, and the base station may further pass the cable. The indication message obtained by the collaboration interface is transmitted to the connected user equipment.

In step 312, channel energy difference information is parsed from the indication message.

In this embodiment, a method for obtaining channel energy difference information of a communication system sharing an unlicensed spectrum is provided by using

steps

311 and 312, so that a base station in a communication system can acquire a shared non-based based on a wired cooperative interface between systems. The channel energy difference information of the other communication systems of the licensed spectrum, the base station may further share the acquired channel energy difference information to the user equipment.

It will be understood by those skilled in the art that the second communication system is not limited to only one communication system, and more than one communication system may share the unlicensed spectrum with the channel detection communication system being executed.

FIG. 4 is a flowchart of an information sending method, which is applicable to a communication device, such as a UE or a base station, in a communication system sharing an unlicensed spectrum, as shown in FIG. 4, according to an exemplary embodiment. The method for sending information includes the following steps 401-402:

In step 401, channel energy difference information for transmitting data using beamforming techniques is determined.

In an embodiment, each communication system sharing an unlicensed spectrum may share channel energy difference information caused by transmitting a data beam using a narrow beam to other communication systems.

In an embodiment, the channel energy difference value is a gain value of the main lobe signal relative to the side lobe signal when the data is transmitted using the narrow beam.

In step 402, a notification message is sent to the communication device in the first communication system, wherein the notification message carries channel energy difference information.

In an embodiment, the notification message may be a broadcast message, such as a system message or a broadcast signal, and the broadcast message may be sent through a 5G new air interface; the communication device in the first communication system listens to the broadcast message through the 5G new air interface.

In an embodiment, the indication message may be sent to the first communication system by using a cooperative interface with the first communication system, where the indication message carries the channel energy difference information. In an embodiment, the wired cooperative interface between different systems may be an Xn interface between the eLTE base station and the 5G base station, etc., from the base station of one communication system to the base station of another communication system, and the base station may further pass the cable. The indication message obtained by the collaboration interface is transmitted to the connected user equipment.

In this embodiment, two ways of transmitting channel energy difference information are provided, and a communication system is implemented. The base station and user equipment in the network can indicate channel energy difference information to the communication system sharing the unlicensed spectrum.

FIG. 5 is a block diagram of a channel detecting apparatus according to an exemplary embodiment. As shown in FIG. 5, the channel detecting apparatus includes:

The obtaining module 51 is configured to acquire channel energy difference information of the second communication system that uses the beamforming technology to transmit data, and the second communication system is a communication system that shares the unlicensed spectrum;

The first determining module 52 is configured to determine, according to the channel energy difference information acquired by the obtaining module 521, a threshold value for evaluating a channel state of the channel to be detected when the communication device performs channel detection of the unlicensed spectrum;

The second determining module 53 is configured to determine a channel state of the channel to be detected based on a comparison result between the signal energy of the channel to be detected and the threshold value determined by the first determining module 52.

FIG. 6 is a block diagram of another channel detecting apparatus according to an exemplary embodiment. As shown in FIG. 6, on the basis of the foregoing embodiment shown in FIG. 5, in an embodiment, the first determining module 52 includes :

The first determining submodule 521 is configured to determine that the channel detection time for performing the unlicensed spectrum belongs to a time set that the second communication system uses the beamforming technology to transmit data;

The second determining sub-module 522 is configured to determine a threshold based on the channel energy difference information.

In an embodiment, the first determining module 52 includes:

The correction sub-module 523 is configured to correct the preset threshold value based on the channel energy difference information to obtain a threshold value.

In an embodiment, the correction sub-module 523 is configured to correct the preset threshold value based on the adjustment amount corresponding to the base station information of the second communication system and the channel energy difference information.

In an embodiment, the obtaining module 51 comprises:

The first obtaining submodule 511 is configured to acquire a broadcast message sent by the second communications system, and parse the channel energy difference information from the broadcast message; or

The second obtaining submodule 512 is configured to acquire an indication message sent by the second communication system by using a cooperative interface with the second communication system, and parse the channel energy difference information from the indication message.

In an embodiment, the second determining module 53 comprises:

The third determining submodule 531 is configured to determine that the channel state of the to-be-detected channel is an idle state if the signal energy value is lower than the threshold value;

The fourth determining submodule 532 is configured to determine that the channel state of the channel to be detected is a non-idle state if the signal energy value is not lower than the threshold.

FIG. 7 is a block diagram of an information sending apparatus according to an exemplary embodiment. As shown in FIG. 7, the information sending apparatus includes:

The third determining module 71 is configured to determine channel energy difference information for transmitting data by using a beamforming technology;

The sending module 72 is configured to send a notification message to the communication device in the first communication system, where the notification message carries the channel energy difference information.

FIG. 8 is a block diagram of another information transmitting apparatus according to an exemplary embodiment. As shown in FIG. 8, on the basis of the foregoing embodiment shown in FIG. 7, in an embodiment, the sending module 72 includes:

The first sending submodule 721 is configured to send a broadcast message, where the broadcast message carries channel energy difference information; or

The second sending sub-module 722 is configured to send an indication message to the first communication system by using a cooperative interface with the first communication system, where the indication message carries channel energy difference information.

With regard to the apparatus in the above embodiments, the specific manner in which the respective modules perform the operations has been described in detail in the embodiment relating to the method, and will not be explained in detail herein.

FIG. 9 is a block diagram of a device suitable for channel detection and information transmission, according to an exemplary embodiment. For example, device 900 can be a user device such as a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.

Referring to Figure 9, device 900 can include one or more of the following components: processing component 902, memory 904, power component 909, multimedia component 908, audio component 912, input/output (I/O) interface 912, sensor component 914, And a communication component 916.

Processing component 902 typically controls the overall operation of device 900, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. Processing component 902 can include one or more processors 920 to execute instructions to perform all or part of the steps described above. Moreover, processing component 902 can include one or more modules to facilitate interaction between component 902 and other components. For example, processing component 902 can include a multimedia module to facilitate interaction between multimedia component 908 and processing component 902.

Memory 904 is configured to store various types of data to support operation at device 900. Examples of such data include instructions for any application or method operating on device 900, contact data, phone book data, messages, pictures, videos, and the like. The memory 904 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable. Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Disk or Optical Disk.

Power component 909 provides power to various components of device 900. Power component 909 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 900. The multimedia component 908 includes a screen between the device 900 and the user that provides an output interface. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor can sense not only the boundaries of the touch or sliding action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 908 includes a front camera and/or a rear camera. When the device 900 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 912 is configured to output and/or input an audio signal. For example, the audio component 912 includes a microphone (MIC) that is configured to receive an external audio signal when the device 900 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may be further stored in memory 904 or transmitted via communication component 916. In some embodiments, audio component 912 also includes a speaker for outputting an audio signal.

The I/O interface 912 provides an interface between the processing component 902 and the peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to, a home button, a volume button, a start button, and a lock button.

Sensor assembly 914 includes one or more sensors for providing device 900 with various aspects of status assessment. For example, sensor component 914 can detect an open/closed state of device 900, a relative positioning of components, such as a display and a keypad of device 900, and sensor component 914 can also detect a change in position of one component of device 900 or device 900, user The presence or absence of contact with device 900, device 900 orientation or acceleration/deceleration and temperature variation of device 900. Sensor assembly 914 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 914 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 914 can also include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

Communication component 916 is configured to facilitate wired or wireless communication between device 900 and other devices. The device 900 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 916 receives a broadcast signal or broadcast associated information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, communication component 916 also includes a near field communication (NFC) module to facilitate short range communication. For example, the NFC module can be based on radio frequency identification (RFID) technology, infrared numbers According to the Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies to achieve.

In an exemplary embodiment, device 900 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic component implementation for performing the above methods.

In an exemplary embodiment, there is also provided a non-transitory computer readable storage medium comprising instructions, such as a memory 904 comprising instructions that, when executed, configurable by processor 920 of apparatus 900 to perform FIG. 1A above Any of the methods described in Figures 2 - 4.

FIG. 10 is a block diagram of an apparatus suitable for channel detection and information transmission, according to an exemplary embodiment. Apparatus 1000 can be provided as a base station. Referring to Figure 10, apparatus 1000 includes a processing component 1022, a wireless transmit/receive component 1024, an antenna component 1026, and a signal processing portion specific to the wireless interface. The processing component 1022 can further include one or more processors.

One of the processing components 1022 can be configured to perform any of the methods described in Figures 1A, 2 - 3B.

In an exemplary embodiment, there is also provided a non-transitory computer readable storage medium comprising instructions, wherein the computer medium is stored on the storage medium, wherein the instructions are executed by the processor to implement the above-mentioned FIG. 1A and FIG. Any of the methods described in Figure 4.

Other embodiments of the present disclosure will be readily apparent to those skilled in the <RTIgt; The present invention is intended to cover any variations, uses, or adaptations of the present disclosure, which are in accordance with the general principles of the present disclosure and include common general knowledge or conventional technical means in the art that are not disclosed in the present disclosure. . The specification and examples are to be regarded as illustrative only,

It is to be understood that the invention is not limited to the details of the details and The scope of the disclosure is to be limited only by the appended claims.

Claims

A channel detecting method, which is applied to a communication device in a first communication system, the method comprising:

Acquiring, by the second communication system, channel energy difference information for transmitting data by using a beamforming technology, where the second communication system is a communication system sharing an unlicensed spectrum;

Determining, according to the channel energy difference information, a threshold value for evaluating a channel state of a channel to be detected when the communication device performs channel detection of the unlicensed spectrum;

And determining a channel state of the to-be-detected channel based on a comparison result between the signal energy of the to-be-detected channel and the threshold.
The method according to claim 1, wherein said determining, based on said channel energy difference information, a threshold for evaluating a channel state of a channel to be detected when said communication device performs channel detection of said unlicensed spectrum Values, including:

Determining that the channel detection time for performing the unlicensed spectrum belongs to a time set of the second communication system transmitting data by using a beamforming technology;

The threshold value is determined based on the channel energy difference information.
The method according to any one of claims 1-2, wherein the determining, based on the channel energy difference information, a channel to be detected for evaluating channel detection of the unlicensed spectrum by the communication device The threshold value of the channel state, including:

The preset threshold value is corrected based on the channel energy difference information to obtain the threshold value.
The method according to claim 3, wherein the modifying the preset threshold based on the channel energy difference information comprises:

And determining, according to the adjustment amount corresponding to the base station information of the second communication system and the channel energy difference information, the preset threshold value.
The method according to claim 1, wherein the acquiring the channel energy difference information of the second communication system using the beamforming technology to transmit data comprises:

Obtaining a broadcast message sent by the second communication system, and parsing the channel energy difference information from the broadcast message; or

Obtaining, by the cooperative interface with the second communication system, an indication message sent by the second communication system, and parsing the channel energy difference information from the indication message.
The method according to claim 1, wherein the determining the channel state of the channel to be detected based on a comparison result between the signal energy of the channel to be detected and the threshold value comprises:

If the signal energy value is lower than the threshold, determining that a channel state of the to-be-detected channel is an idle state;

If the signal energy value is not lower than the threshold, determining that the channel state of the to-be-detected channel is a non-idle state.
An information transmitting method, which is applied to a communication device in a second communication system, the method comprising:

Determining channel energy difference information for transmitting data using beamforming techniques;

Sending a notification message to the communication device in the first communication system, wherein the notification message carries the channel energy difference information.
The method according to claim 7, wherein the transmitting the notification message to the communication device in the first communication system, wherein the notification message carries the channel energy difference information, including:

Sending a broadcast message, where the broadcast message carries the channel energy difference information; or

Sending an indication message to the first communication system by using a cooperative interface with the first communication system, where the indication message carries the channel energy difference information.
A channel detecting apparatus, which is applied to a communication device in a first communication system, the device comprising:

An acquiring module, configured to acquire channel energy difference information of a second communication system that uses a beamforming technology to transmit data, where the second communication system is a communication system that shares an unlicensed spectrum;

a first determining module, configured to determine, according to the channel energy difference information acquired by the acquiring module, a threshold value for evaluating a channel state of a channel to be detected when the communication device performs channel detection of the unlicensed spectrum ;

The second determining module is configured to determine a channel state of the to-be-detected channel based on a comparison result between a signal energy of the to-be-detected channel and the threshold determined by the first determining module.
The apparatus according to claim 9, wherein the first determining module comprises:

a first determining submodule configured to determine that a channel detection time for performing the unlicensed spectrum belongs to a time set of the second communication system transmitting data by using a beamforming technology;

And a second determining submodule configured to determine the threshold value based on the channel energy difference information.
The apparatus according to any one of claims 9 to 10, wherein the first determining module comprises:

The correction submodule is configured to correct the preset threshold value based on the channel energy difference information to obtain the threshold value.
The apparatus according to claim 11, wherein the correction submodule is configured to: according to an adjustment amount corresponding to base station information of the second communication system and the channel energy difference information, to the preset gate The limits are corrected.
The device according to claim 9, wherein the obtaining module comprises:

a first acquiring submodule configured to acquire a broadcast message sent by the second communication system, and parse the channel energy difference information from the broadcast message; or

a second obtaining submodule configured to acquire an indication message sent by the second communication system by using a collaboration interface with the second communication system, and parse the channel energy difference information from the indication message .
The apparatus according to claim 9, wherein the second determining module comprises:

a third determining submodule, configured to determine that a channel state of the to-be-detected channel is an idle state if the signal energy value is lower than the threshold value;

The fourth determining submodule is configured to determine that the channel state of the to-be-detected channel is a non-idle state if the signal energy value is not lower than the threshold.
An information transmitting apparatus, which is applied to a communication device in a second communication system, the device comprising:

a third determining module configured to determine channel energy difference information for transmitting data by using a beamforming technique;

The sending module is configured to send a notification message to the communication device in the first communication system, where the notification message carries the channel energy difference information.
The device according to claim 15, wherein the sending module comprises:

The first sending submodule is configured to send a broadcast message, where the broadcast message carries the channel energy difference information; or

The second sending submodule is configured to send an indication message to the first communication system by using a cooperative interface with the first communication system, where the indication message carries the channel energy difference information.
A channel detecting device, comprising:

processor;

a memory for storing processor executable instructions;

Wherein the processor is configured to:

Acquiring, by the second communication system, channel energy difference information for transmitting data by using a beamforming technology, where the second communication system is a communication system sharing an unlicensed spectrum;

Determining, according to the channel energy difference information, a threshold value for evaluating a channel state of a channel to be detected when the communication device performs channel detection of the unlicensed spectrum;

And determining a channel state of the to-be-detected channel based on a comparison result between the signal energy of the to-be-detected channel and the threshold.
An information sending device, comprising:

processor;

a memory for storing processor executable instructions;

Wherein the processor is configured to:

Determining channel energy difference information for transmitting data using beamforming techniques;

Sending a notification message to the communication device in the first communication system, wherein the notification message carries the channel energy difference information.
A non-transitory computer readable storage medium having computer instructions stored thereon, wherein the instructions are executed by a processor to implement the following steps:

Acquiring, by the second communication system, channel energy difference information for transmitting data by using a beamforming technology, where the second communication system is a communication system sharing an unlicensed spectrum;

Determining, according to the channel energy difference information, a threshold value for evaluating a channel state of a channel to be detected when the communication device performs channel detection of the unlicensed spectrum;

And determining a channel state of the to-be-detected channel based on a comparison result between the signal energy of the to-be-detected channel and the threshold.
A non-transitory computer readable storage medium having computer instructions stored thereon, wherein the instructions are executed by a processor to implement the following steps:

Determining channel energy difference information for transmitting data using beamforming techniques;

Sending a notification message to the communication device in the first communication system, wherein the notification message carries the channel energy difference information.