CN108235439B - Wireless communication method, device and system - Google Patents
Wireless communication method, device and system Download PDFInfo
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- CN108235439B CN108235439B CN201810142095.9A CN201810142095A CN108235439B CN 108235439 B CN108235439 B CN 108235439B CN 201810142095 A CN201810142095 A CN 201810142095A CN 108235439 B CN108235439 B CN 108235439B
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Abstract
The embodiment of the application provides a wireless communication method, a device and a system. The method comprises the following steps: determining uplink carrier configuration information of an uplink channel in a cell, wherein the uplink carrier configuration information comprises at least one uplink subcarrier, and the bandwidth of the at least one uplink subcarrier is smaller than that of a downlink carrier of a downlink channel of the cell; and sending the uplink carrier configuration information to a mobile terminal so that the mobile terminal determines one uplink subcarrier from the at least one uplink subcarrier to send uplink data. The embodiment of the application also provides a wireless communication device and a wireless communication system. According to the technical scheme of the embodiment of the application, the mobile terminal can send the uplink data based on the uplink sub-carrier with the bandwidth smaller than that of the downlink carrier, and the throughput of the uplink data is improved.
Description
Technical Field
The present disclosure relates to wireless communication technologies, and in particular, to a method, an apparatus, and a system for wireless communication.
Background
In a wireless communication System, such as a Universal Mobile Telecommunications System (UMTS), a narrow bandwidth can be used to meet application scenarios with different bandwidth requirements, so that a Mobile terminal (UE) can transmit uplink data with a narrow bandwidth, thereby improving uplink throughput of the communication System.
In the prior art, a base station cell a with a large bandwidth in a communication system is generally divided into a plurality of cells a1 with small bandwidths, that is, a bandwidth S of the base station cell is divided into a plurality of small bandwidths S1, so that each cell a1 transmits uplink data with a small bandwidth S1, where a downlink bandwidth of a downlink channel in the cell is the same as an uplink bandwidth of an uplink channel, that is, bandwidths of an uplink carrier of the uplink channel and a downlink carrier of the downlink channel are the same. In this way, when the base station communicates with the UE, uplink data is transmitted based on the small bandwidth of the cell a1, and uplink throughput of the UE in the communication system can be improved.
However, when a base station cell with a large bandwidth is divided into a plurality of cells with small bandwidths, the number of cells to be maintained by the system is increased, and the system maintenance cost is increased; meanwhile, the increase of cells causes the cell switching of the mobile UE to be frequent, and increases the system resource consumption of cell switching.
Disclosure of Invention
Embodiments of the present application provide a wireless communication method, apparatus, and system, which can overcome the problems of system maintenance cost increase and system resource consumption of cell handover caused by the increase of the number of cells in the existing method for dividing a large bandwidth cell into multiple small bandwidth cells.
The embodiment of the application provides a wireless communication method, which comprises the following steps:
determining uplink carrier configuration information of an uplink channel in a cell, wherein the uplink carrier configuration information comprises at least one uplink subcarrier, and the bandwidth of the at least one uplink subcarrier is smaller than that of a downlink carrier of a downlink channel of the cell;
and sending the uplink carrier configuration information to a mobile terminal so that the mobile terminal determines one uplink subcarrier from the at least one uplink subcarrier to send uplink data.
The embodiment of the application provides another wireless communication method, which comprises the following steps:
receiving uplink carrier configuration information of a cell, wherein the uplink carrier configuration information comprises at least one uplink subcarrier, and the bandwidth of the at least one uplink subcarrier is smaller than that of a downlink carrier of a downlink channel of the cell;
and determining one uplink subcarrier in the at least one uplink subcarrier to transmit uplink data.
An embodiment of the present application provides another wireless communication apparatus, including:
a carrier configuration information determining module, configured to determine uplink carrier configuration information of an uplink channel in a cell, where the uplink carrier configuration information includes at least one uplink subcarrier, and a bandwidth of the at least one uplink subcarrier is smaller than a bandwidth of a downlink carrier of a downlink channel of the cell;
and the configuration information sending module is used for sending the uplink carrier configuration information to the mobile terminal so that the mobile terminal determines one uplink subcarrier from the at least one uplink subcarrier to send uplink data.
An embodiment of the present application provides another wireless communication apparatus, including:
a configuration information receiving module, configured to receive uplink carrier configuration information of a cell, where the uplink carrier configuration information includes at least one uplink subcarrier, and a bandwidth of the at least one uplink subcarrier is smaller than a bandwidth of a downlink carrier of a downlink channel of the cell;
and the uplink data sending module is used for determining one uplink subcarrier in the at least one uplink subcarrier to send the uplink data.
The embodiment of the present application further provides a wireless communication system, which includes a network device and a mobile terminal, where the network device includes the wireless communication apparatus provided in the embodiment of the present application, and the mobile terminal includes another wireless communication apparatus provided in the embodiment of the present application.
In the wireless communication method, apparatus and system provided in this embodiment, the mobile terminal may perform uplink data transmission based on the uplink subcarrier in the uplink carrier configuration information, and the bandwidth of the uplink subcarrier is smaller than the bandwidth of the downlink carrier, so that, in one communication cell, the mobile terminal may perform uplink data transmission on the uplink subcarrier with a small bandwidth, thereby improving the throughput of uplink data and the performance of the communication system, and meanwhile, the problems of system maintenance and resource waste caused by dividing a large bandwidth cell into small bandwidth cells in the prior art can be avoided.
Drawings
Fig. 1 is a flowchart illustrating a wireless communication method according to an embodiment of the present application;
fig. 2 is a flowchart illustrating a wireless communication method according to a second embodiment of the present application;
fig. 3 is a flowchart illustrating a wireless communication method according to a third embodiment of the present application;
fig. 4 is a flowchart illustrating a wireless communication method according to a fourth embodiment of the present application;
fig. 5 is a flowchart illustrating a wireless communication method according to a fifth embodiment of the present application;
fig. 6 is a flowchart illustrating a wireless communication method according to a sixth embodiment of the present application;
fig. 7 is a flowchart illustrating a wireless communication method according to a seventh embodiment of the present application;
fig. 8 is a schematic structural diagram of a wireless communication device according to an eighth embodiment of the present application;
fig. 9 is a schematic structural diagram of a wireless communication device according to a ninth embodiment of the present application;
fig. 10 is a schematic structural diagram of a wireless communication device according to a tenth embodiment of the present application;
fig. 11 is a schematic structural diagram of a wireless communication apparatus according to an eleventh embodiment of the present application;
fig. 12 is a schematic structural diagram of a wireless communication device according to a twelfth embodiment of the present application;
fig. 13 is a schematic structural diagram of a wireless communication device according to a thirteenth embodiment of the present application;
fig. 14 is a schematic structural diagram of a wireless communication apparatus according to a fourteenth embodiment of the present application;
fig. 15 is a schematic structural diagram of a wireless communication device according to a fifteenth embodiment of the present application;
fig. 16 is a schematic structural diagram of a wireless communication system according to a sixteenth embodiment of the present application.
Detailed Description
The wireless communication method of the embodiment may be applied to any communication system, for example, a third generation mobile communication technology (3 rd-generation, 3G) mobile communication system, and is used for transmitting uplink sub-carriers for performing uplink data transmission to a mobile terminal in a communication cell, so that the mobile terminal may perform uplink data transmission by using the uplink sub-carriers with a bandwidth smaller than that of downlink carriers of the cell. The present embodiment will be described with reference to an application in Wideband Code Division Multiple Access (WCDMA) as an example.
Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Fig. 1 is a flowchart illustrating a wireless communication method according to an embodiment of the present application. In this embodiment, a Network device in a communication cell, which is a Network control node in this embodiment, for example, a Radio Network Controller (RNC), may send uplink carrier configuration information to a mobile terminal in the cell through a cell base station, so that the mobile terminal may send uplink data based on the configuration information, and specifically, as shown in fig. 1, the method in this embodiment may include the following steps:
In this embodiment, the configuration information sent by the network control node in step 102 may include multiple or one uplink subcarrier, and when the configuration information received by the mobile terminal includes multiple uplink subcarriers, the mobile terminal may randomly determine one uplink subcarrier to send uplink data, or determine one uplink subcarrier based on the uplink subcarrier information used in the history or other information; and when the mobile terminal receives that the configuration information only comprises one uplink subcarrier, the mobile terminal can directly utilize the uplink subcarrier to transmit uplink data.
In this embodiment, the data uploaded by the mobile terminal in step 102 may specifically include information such as a random access Preamble sequence (Preamble), an uplink signaling, or an uplink service.
In this embodiment, the network control node may pre-configure uplink carrier configuration information of an uplink channel in a cell, where the uplink carrier configuration information may include at least one of the following information: the number of uplink subcarriers, the frequency point of each uplink subcarrier, the index number of each uplink subcarrier, the bandwidth of each uplink subcarrier, and the like. Those skilled in the art will appreciate that the uplink sub-carrier bandwidth refers to a frequency range representation of the uplink sub-carrier in the communication system.
Specifically, the uplink subcarrier may specifically refer to information including a frequency point and a bandwidth size, or may also refer to information including a frequency point, a bandwidth size, a subcarrier index number, and the like; or, the information may also include the number of uplink subcarriers and the index number of subcarriers; or, the frequency point list may also include uplink subcarriers; or, after the network control node has sent the uplink carrier configuration information to the mobile terminal and the information indicating the uplink subcarriers includes the carrier index number, the network control node may also send the carrier index number for indicating the uplink subcarriers only to the mobile terminal.
In the wireless communication method provided by this embodiment, the mobile terminal may send uplink data based on the uplink subcarrier in the uplink carrier configuration information, and the bandwidth of the uplink subcarrier is smaller than the bandwidth of the downlink carrier, so that the mobile terminal may send uplink data on the uplink subcarrier with a small bandwidth in one communication cell, thereby improving the throughput of uplink data and the performance of the communication system, and simultaneously avoiding the problems of system maintenance and resource waste caused by dividing a large bandwidth cell into small bandwidth cells in the prior art.
Based on the foregoing technical solution in the first embodiment of the present application, further, the uplink carrier configuration information in step 101 may include any one or a combination of multiple pieces of information: frequency point of uplink carrier, bandwidth of uplink subcarrier, length of radio frame of uplink channel, and Transmission Time Interval (TTI) information of uplink subcarrier and/or downlink subcarrier.
The transmission time interval information of the uplink subcarrier and/or the downlink subcarrier may be configured with different values for different channels, and the transmission time intervals of the uplink subcarrier and the downlink subcarrier may be the same or different. For example, there are 2 uplink subcarriers and 1 downlink carrier, and the bandwidth of the downlink carrier is greater than the bandwidth of the 2 uplink subcarriers, the following configuration may be performed: the length of a Downlink radio frame is 10ms, a subframe of a Downlink High Speed Downlink Shared Channel (HS-DSCH) is 2ms, a subframe of an uplink Dedicated Physical Control Channel (DPCCH), an uplink Dedicated Physical Data Channel (DPDCH), a High Speed Dedicated Physical Control Channel (HS-DPCCH), an Enhanced Dedicated Physical Data Channel (E-DPDCH), and an Enhanced Dedicated Physical Control Channel (E-DPCCH) has a minimum TTI subframe of 4ms, a cycle of 15 random access slots is 40ms, and a length of 20 ms.
On the basis of the above technical solution, further, the indication manner of the length of the radio frame of the uplink and downlink carriers may be a length value indicating a radio frame or a subframe of the uplink subcarrier channel and/or the downlink subcarrier channel, or a scale factor indicating a length of the radio frame or the subframe of the uplink subcarrier channel relative to a length of the radio frame or the subframe of the downlink subcarrier channel, and/or a scale factor indicating a length of the radio frame or the subframe of the downlink subcarrier channel relative to a length of the radio frame or the subframe of the uplink subcarrier channel. When the UE receives the uplink carrier configuration information, uplink access or downlink reception may be performed according to the length of the radio frame or subframe. Fig. 2 is a flowchart illustrating a wireless communication method according to a second embodiment of the present application. As shown in fig. 2, the wireless communication method of the present embodiment may include the following steps:
In this embodiment, when sending carrier configuration information to the mobile terminal through the base station, the network control node may simultaneously carry subcarrier indication information corresponding to the uplink subcarrier, where the subcarrier indication information may specifically be a value representing a load condition of the uplink subcarrier, or a value representing a probability of random access collision, or information representing a priority of the uplink subcarrier. The indication information may indicate a state of the uplink subcarrier during cell communication, so that the mobile terminal may determine an optimal uplink subcarrier for uplink data transmission based on the state of the uplink subcarrier. For example, for information in which the subcarrier indication information is priority, when determining subcarriers, subcarriers with high priorities may be selected as uplink subcarriers for the mobile terminal to upload data; for another example, if the subcarrier indication information is a value of a carrier load condition, when determining the subcarriers, selecting the subcarriers with the minimum load and the like as uplink subcarriers for the mobile terminal to upload data; for another example, if the subcarrier indication information is a value of a random access collision probability, and when a subcarrier is determined, a subcarrier with a low random access collision probability is selected as an uplink subcarrier for the mobile terminal to upload data.
In this embodiment, the uplink Channel for the mobile terminal to perform uplink data transmission may be a Random Access Channel (RACH), an Enhanced Random Access Channel (Common E-DCH), a Physical Random Access Channel (PRACH), a Dedicated Physical Control Channel (DPCCH), at least one of a Dedicated Physical Data Channel (DPDCH), an Enhanced uplink Dedicated Physical Control Channel (E-DPCCH), an Enhanced uplink Dedicated Physical Data Channel (E-DPDCH), and an uplink Dedicated Physical Control Channel (HS-DSCH) for a high speed downlink shared Channel.
Those skilled in the art will understand that the mobile terminal may determine the required uplink channel according to different states of the mobile terminal, and after determining the uplink channel, the uplink sub-carrier may be determined based on the above step 202, so as to transmit uplink data on the determined uplink sub-carrier. For example, when the mobile terminal has no uplink transmission resource in an idle state or a CELL forward access channel (CELL-FACH) state and needs to transmit uplink data, it may determine a random access channel or an enhanced random access channel to access the CELL, and after determining the access channel, determine an uplink carrier to transmit the uplink data on the uplink carrier. In practical application, the uplink carrier for uploading data may be determined first, and then the random access channel for sending the uplink data is determined.
Those skilled in the art can understand that what kind of uplink channels can be preset on the mobile terminal to perform uplink data transmission by using the uplink subcarriers in the uplink carrier configuration information issued by the network control node, or the network control node may also issue, for the mobile terminal, an uplink channel that can select the uplink subcarriers in the uplink carrier configuration information to perform uplink data transmission.
Those skilled in the art can understand that the mobile terminal may determine the subcarrier by using the subcarrier indication information, and may also randomly select to determine the subcarrier, at this time, the subcarrier configuration information sent by the network control node may not carry the subcarrier indication information.
In this embodiment, when the mobile terminal accesses the cell through the random access channel or the enhanced random access channel, and the network control node sends the random access channel or the enhanced random access channel downward, it may also allocate a corresponding uplink subcarrier to each random access channel or the enhanced random access channel, and send the uplink subcarrier in the configuration information and the random access channel or the enhanced random access channel together to the mobile terminal. The following will explain with specific examples. Fig. 3 is a flowchart illustrating a wireless communication method according to a third embodiment of the present application. In this embodiment, the network control node may allocate a corresponding uplink subcarrier to the random access channel when sending the random access channel to the mobile terminal, so that the mobile terminal may send uplink data on the uplink subcarrier corresponding to the random access channel when selecting the random access channel access cell, specifically, as shown in fig. 3, the method in this embodiment may include the following steps:
As will be understood by those skilled in the art, a Random Access Channel (RACH), also called a common Channel, is a Channel that is issued by a network control node and used when a mobile terminal randomly accesses a cell, and the mobile terminal can Access the cell based on the random Access Channel.
It will be understood by those skilled in the art that when the network control node allocates more than one uplink sub-carrier for each random access channel, the mobile terminal may randomly select one uplink sub-carrier from the multiple uplink sub-carriers.
In this embodiment, in step 302, subcarrier indication information may also be allocated to an uplink subcarrier of each random access channel, where the subcarrier indication information is used to indicate a state of the uplink subcarrier corresponding to the random access channel, and correspondingly, in step 303, when the random access channel is sent to the mobile terminal, the uplink subcarrier and the subcarrier indication information corresponding to the random access channel are sent. Therefore, the mobile terminal can determine the random access channel of the access cell based on the subcarrier indication information, and transmit uplink data on the uplink subcarrier corresponding to the random access channel of the determined access cell. The subcarrier indication information is a value representing the uplink subcarrier load condition, or a value representing the random access collision probability, or information representing the uplink subcarrier priority.
Fig. 4 is a flowchart illustrating a wireless communication method according to a fourth embodiment of the present application. Different from the foregoing embodiment shown in fig. 3, in this embodiment, the network control node may also allocate a corresponding uplink subcarrier to the enhanced random access channel, so that the mobile terminal performs uplink data transmission based on the uplink subcarrier corresponding to the enhanced random access channel, specifically, as shown in fig. 4, this embodiment may include the following steps:
It will be understood by those skilled in the art that when the network control node allocates corresponding uplink subcarrier lists for all enhanced random access channels, the terminal may randomly determine one uplink subcarrier from a plurality of uplink subcarriers. The terminal may determine the enhanced random access channel first or determine the uplink sub-carriers first.
In this embodiment, step 402 may also allocate subcarrier indication information to the uplink subcarrier of each enhanced random access channel, where the subcarrier indication information is used to indicate a state of the uplink subcarrier corresponding to the enhanced random access channel, and correspondingly, step 403 may specifically send the uplink subcarrier and the subcarrier indication information corresponding to the enhanced random access channel when sending the random access channel to the mobile terminal. Therefore, the mobile terminal can determine the enhanced random access channel of the access cell based on the subcarrier indication information, and transmit uplink data on the uplink subcarrier corresponding to the enhanced random access channel of the determined access cell. The subcarrier indication information is a value representing the uplink subcarrier load condition, or a value representing the random access collision probability, or priority indication information.
In addition, in this embodiment, for a mobile terminal in a CELL dedicated channel (CELL-DCH) state or a CELL forward access channel (CELL _ FACH) state, an uplink channel between the mobile terminal and a network control node is an uplink dedicated channel or an enhanced uplink dedicated channel, and at this time, the network control node may also allocate an uplink subcarrier to the mobile terminal and send the uplink subcarrier to the mobile terminal through higher layer dedicated signaling or physical layer signaling. The following will describe a downlink carrier issuing procedure of the uplink dedicated channel or the enhanced uplink dedicated channel as an example.
Fig. 5 is a flowchart illustrating a wireless communication method according to a fifth embodiment of the present application. The embodiment is applicable to a mobile terminal in CELL-DCH state, and specifically, as shown in fig. 5, the embodiment may include the following steps:
In the embodiments of the present application, the network control node may further send carrier configuration information of the neighboring cell to the mobile terminal, where the carrier configuration information includes uplink carrier configuration information of an uplink channel and/or downlink carrier configuration information of a downlink channel. In this way, the mobile terminal may refer to when selecting a cell based on the configuration information of the neighboring cell, where the uplink carrier configuration information is specifically an uplink subcarrier that can be used by an uplink channel of the cell, and the downlink carrier configuration information is specifically a downlink carrier that can be used by a downlink channel of the cell, where the uplink subcarrier may be specifically one or more, and the downlink carrier may also be one or more.
Specifically, when selecting a cell, the mobile terminal may determine a suitable cell according to the capability of the mobile terminal that can support the asymmetry of the uplink and downlink carrier bandwidths and the configuration information of the uplink and downlink carriers of the adjacent cell. For example, the mobile terminal supports the capability of uplink and downlink carrier bandwidth asymmetry, and if there is a cell with uplink and downlink carrier asymmetry in an adjacent cell, the mobile terminal may preferentially select to reselect to the adjacent cell. For example, if the mobile terminal supports downlink reception with high bandwidth and there is a downlink high bandwidth cell in the neighboring cells, the mobile terminal preferably reselects to the neighboring cell supporting high bandwidth.
As can be understood by those skilled in the art, for a mobile terminal in an idle state or a CELL _ FACH state, in an access process after the mobile terminal determines an uplink carrier, the network control node may also instruct the mobile terminal to change the uplink subcarrier, and specifically may instruct or allocate an uplink subcarrier to the mobile terminal through a physical layer signaling or a higher layer signaling.
Fig. 6 is a flowchart illustrating a wireless communication method according to a sixth embodiment of the present application. The main execution body of this embodiment is a mobile terminal, and after receiving uplink carrier configuration information sent by a network control node in a communication system through a base station, the mobile terminal may send uplink data based on uplink subcarriers in the configuration information, specifically, as shown in fig. 6, this embodiment may include the following steps:
This embodiment may implement, together with the method described in any one of fig. 1 to fig. 5, communication of a mobile terminal in a wireless communication system, so that the mobile terminal may transmit uplink data in an uplink sub-carrier smaller than a downlink bandwidth in a communication cell, thereby improving throughput of the uplink data in the cell.
As will be understood by those skilled in the art, when receiving downlink data sent by the network control node, the mobile terminal still receives data according to the uplink sub-carriers with the same bandwidth as the downlink channel, so as to ensure the reliability of data reception.
In this embodiment, the uplink carrier configuration information may further include subcarrier indication information corresponding to the uplink subcarriers, where the subcarrier indication information is used to indicate states of the uplink subcarriers; the step 602 may specifically determine an uplink subcarrier to transmit uplink data in at least one uplink subcarrier based on the subcarrier indication information. The subcarrier indication information may specifically be a value representing uplink subcarrier load conditions, or a value representing random access collision probability, or information representing uplink subcarrier priority.
On the basis of the foregoing technical solution of the sixth embodiment of the present application, further, the uplink carrier configuration information in step 601 may include any one or a combination of multiple pieces of information: frequency point of uplink carrier, bandwidth of uplink subcarrier, length of radio frame of uplink channel, and Transmission Time Interval (TTI) information of uplink subcarrier and/or downlink subcarrier.
The transmission time interval information of the uplink subcarrier and/or the downlink subcarrier may be configured with different values for different channels, and the transmission time intervals of the uplink subcarrier and the downlink subcarrier may be the same or different. For example, there are 2 uplink subcarriers and 1 downlink carrier, and the bandwidth of the downlink carrier is greater than the bandwidth of the 2 uplink subcarriers, the following configuration may be performed: the length of a Downlink radio frame is 10ms, a subframe of a Downlink High Speed Downlink Shared Channel (HS-DSCH) is 2ms, a subframe of an uplink Dedicated Physical Control Channel (DPCCH), an uplink Dedicated Physical Data Channel (DPDCH), a High Speed Dedicated Physical Control Channel (HS-DPCCH), an Enhanced Dedicated Physical Data Channel (E-DPDCH), and an Enhanced Dedicated Physical Control Channel (E-DPCCH) has a minimum TTI subframe of 4ms, a cycle of 15 random access slots is 40ms, and a length of 20 ms.
On the basis of the above technical solution, further, the indication manner of the length of the radio frame of the uplink and downlink carriers may be a length value indicating a radio frame or a subframe of the uplink subcarrier channel and/or the downlink subcarrier channel, or a scale factor indicating a length of the radio frame or the subframe of the uplink subcarrier channel relative to a length of the radio frame or the subframe of the downlink subcarrier channel, and/or a scale factor indicating a length of the radio frame or the subframe of the downlink subcarrier channel relative to a length of the radio frame or the subframe of the uplink subcarrier channel. When the UE receives the uplink carrier configuration information, uplink access or downlink reception may be performed according to the length of the radio frame or subframe.
Fig. 7 is a flowchart illustrating a wireless communication method according to a seventh embodiment of the present application. In this embodiment, the uplink carrier configuration information received by the mobile terminal may only include one uplink subcarrier, where the uplink subcarrier is an uplink subcarrier allocated to the mobile terminal for uplink data transmission, and specifically, as shown in fig. 7, this implementation may include the following steps:
In this embodiment, the mobile terminal is usually in the CELL-DCH state, that is, when the uplink channel adopts an uplink dedicated channel or an enhanced uplink dedicated channel, the mobile terminal may receive the uplink subcarrier allocated to the mobile terminal by the network control node.
It can be understood by those skilled in the art that when the mobile terminal is in the CELL _ FACH state and the uplink channel adopts the enhanced uplink dedicated channel, the uplink sub-carrier allocated by the network control node can also be received.
In the embodiments of the present application, in the WCDMA system, the downlink bandwidth and the uplink bandwidth of the traditional cell are both 5MHz, and when the embodiments of the present application are adopted, the uplink carriers can be equally allocated into N uplink subcarriers; similarly, in practical applications, the uplink carrier may also be kept unchanged, and the uplink carrier may be implemented by changing the bandwidth of the downlink carrier, for example, when the bandwidths of the uplink carriers are all 5MHz, the bandwidths of the downlink carriers may be configured to be N × 5 MHz.
Those skilled in the art can understand that the wireless communication method provided in the embodiment of the present application can be applied to a WCDMA communication system, and can also be used in Time Division-Synchronous Code Division Multiple Access (TD-SCDMA), Code Division Multiple Access (CDMA), Long Term Evolution (LTE), and other communication systems.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Fig. 8 is a schematic structural diagram of a wireless communication device according to an eighth embodiment of the present application. As shown in fig. 8, the wireless communication apparatus of the present embodiment includes a carrier configuration information determining module 11 and a configuration information transmitting module 12, where:
a carrier configuration information determining module 11, configured to determine uplink carrier configuration information of an uplink channel in a cell, where the uplink carrier configuration information includes at least one uplink subcarrier, and a bandwidth of the at least one uplink subcarrier is smaller than a bandwidth of a downlink carrier of a downlink channel of the cell;
a configuration information sending module 12, configured to send uplink carrier configuration information to the mobile terminal, so that the mobile terminal determines an uplink subcarrier from the at least one uplink subcarrier to send uplink data.
The wireless communication apparatus provided in this embodiment may be a network control node in the wireless communication system, or a part of the network control node, and may send uplink carrier configuration information to the mobile terminal, so that the mobile terminal may send uplink data based on uplink subcarriers in the configuration information.
In this embodiment, the uplink carrier configuration information further includes subcarrier indication information corresponding to an uplink subcarrier, so that the mobile terminal determines, based on the subcarrier indication information, one uplink subcarrier in the at least one uplink subcarrier to send uplink data, where the subcarrier indication information is used to indicate a state of the uplink subcarrier.
In this embodiment, the uplink channel may specifically include at least one of a physical random access channel, a dedicated physical control channel, a dedicated physical data channel, a dedicated physical control channel of an enhanced uplink dedicated channel, a dedicated physical data channel of an enhanced uplink dedicated channel, and an uplink dedicated physical control channel for a high-speed downlink shared channel, and when the mobile terminal uses the uplink channels to transmit uplink data, the mobile terminal may transmit the uplink data on an uplink subcarrier in the uplink carrier configuration information.
On the basis of the above technical solution of the eighth embodiment of the present application, further, the uplink carrier configuration information may include any one or a combination of multiple pieces of information: frequency point of uplink carrier, bandwidth of uplink subcarrier, length of radio frame of uplink channel, and Transmission Time Interval (TTI) information of uplink subcarrier and/or downlink subcarrier.
The transmission time interval information of the uplink subcarrier and/or the downlink subcarrier may be configured with different values for different channels, and the transmission time intervals of the uplink subcarrier and the downlink subcarrier may be the same or different. For example, there are 2 uplink subcarriers and 1 downlink carrier, and the bandwidth of the downlink carrier is greater than the bandwidth of the 2 uplink subcarriers, the following configuration may be performed: the length of a Downlink radio frame is 10ms, a subframe of a Downlink High Speed Downlink Shared Channel (HS-DSCH) is 2ms, a subframe of an uplink Dedicated Physical Control Channel (DPCCH), an uplink Dedicated Physical Data Channel (DPDCH), a High Speed Dedicated Physical Control Channel (HS-DPCCH), an Enhanced Dedicated Physical Data Channel (E-DPDCH), and an Enhanced Dedicated Physical Control Channel (E-DPCCH) has a minimum TTI subframe of 4ms, a cycle of 15 random access slots is 40ms, and a length of 20 ms.
On the basis of the above technical solution, further, the indication manner of the length of the radio frame of the uplink and downlink carriers may be a length value indicating a radio frame or a subframe of the uplink subcarrier channel and/or the downlink subcarrier channel, or a scale factor indicating a length of the radio frame or the subframe of the uplink subcarrier channel relative to a length of the radio frame or the subframe of the downlink subcarrier channel, and/or a scale factor indicating a length of the radio frame or the subframe of the downlink subcarrier channel relative to a length of the radio frame or the subframe of the uplink subcarrier channel. When the UE receives the uplink carrier configuration information, uplink access or downlink reception may be performed according to the length of the radio frame or subframe.
Fig. 9 is a schematic structural diagram of a wireless communication device according to a ninth embodiment of the present application. The present embodiment may be applied to an application in which a mobile terminal accesses a cell through a random access channel, specifically, as shown in fig. 9, in the present embodiment, the configuration information sending module 12 shown in fig. 8 may specifically include a first carrier allocating unit 121 and a first carrier sending unit 122, where:
a first carrier allocation unit 121, configured to allocate a corresponding uplink subcarrier to each random access channel;
a first carrier sending unit 122, configured to send an uplink subcarrier corresponding to a random access channel when sending the random access channel to a mobile terminal, so that the mobile terminal sends uplink data on the uplink subcarrier corresponding to the random access channel when accessing a cell based on the random access channel.
In this embodiment, the wireless communication device may allocate corresponding uplink subcarriers to each random access channel when issuing the random access channel to the mobile terminal, so that when the mobile terminal accesses a cell with the random access channel, uplink data may be sent on the uplink subcarriers corresponding to the random access channel.
In addition, as shown in fig. 9, the configuration information sending module may further include a first indication information allocating unit 123, configured to allocate subcarrier indication information to an uplink subcarrier of each random access channel, where the subcarrier indication information is used to indicate a state of the uplink subcarrier corresponding to the random access channel; accordingly, the first carrier sending unit 122 is specifically configured to send uplink subcarriers and subcarrier indication information corresponding to the random access channel when sending the random access channel to the mobile terminal, so that the mobile terminal determines the random access channel of the access cell based on the subcarrier indication information, and sends uplink data on the uplink subcarriers corresponding to the random access channel of the access cell.
Fig. 10 is a schematic structural diagram of a wireless communication device according to a tenth embodiment of the present application. Different from the embodiment shown in fig. 9, the present embodiment may be applied to a cell access application of an enhanced random access channel, specifically, as shown in fig. 10, the configuration information sending module 12 shown in fig. 8 may specifically include a second carrier allocating unit 124 and a second carrier sending unit 125, where:
a second carrier allocation unit 124, configured to allocate a corresponding uplink subcarrier to each enhanced random access channel;
a second carrier sending unit 125, configured to send an uplink subcarrier corresponding to the enhanced random access channel when sending the enhanced random access channel to the mobile terminal, so that when the mobile terminal accesses the cell based on the enhanced random access channel, the mobile terminal sends uplink data on the uplink subcarrier corresponding to the enhanced random access channel.
In addition, as shown in fig. 10, the configuration information sending module 12 may further include a second indication information allocating unit 126, configured to allocate subcarrier indication information to an uplink subcarrier of each enhanced random access channel, where the subcarrier indication information is used to indicate a state of the uplink subcarrier corresponding to the enhanced random access channel; accordingly, the second carrier sending unit 125 is specifically configured to, when sending the enhanced random access channel to the mobile terminal, send the uplink subcarrier corresponding to the enhanced random access channel and the subcarrier indication information, so that the mobile terminal determines the enhanced random access channel of the access cell based on the subcarrier indication information, and sends uplink data on the uplink subcarrier corresponding to the enhanced random access channel of the determined access cell.
In this embodiment, the subcarrier indication information may specifically be a value representing uplink subcarrier load, a value representing random access collision probability, or information representing uplink subcarrier priority.
Fig. 11 is a schematic structural diagram of a wireless communication device according to an eleventh embodiment of the present application. The present embodiment may be applied to an uplink data transmission application through an enhanced uplink dedicated channel or an uplink dedicated channel, specifically, as shown in fig. 11, the configuration information sending module 12 shown in fig. 8 may specifically include a third carrier allocating unit 127 and a third carrier sending unit 128, where:
a third carrier allocation unit 127, configured to allocate, in the at least one uplink subcarrier, an uplink subcarrier for the mobile terminal to perform uplink data transmission;
a third carrier sending unit 128, configured to send uplink subcarriers for the mobile terminal to send uplink data to the mobile terminal through high-layer dedicated signaling or physical layer signaling.
The embodiment may be applicable to sending uplink data of a CELL-DCH mobile terminal, and specific implementation thereof may refer to the description of the method embodiment of the present application, which is not described herein again.
Fig. 12 is a schematic structural diagram of a wireless communication device according to a twelfth embodiment of the present application. Based on the technical solutions in the embodiments of the present application, as shown in fig. 12, this embodiment may further include a neighboring cell carrier configuration sending module 13, configured to send carrier configuration information of a neighboring cell to the mobile terminal, where the carrier configuration information includes uplink carrier configuration information of an uplink channel and/or downlink carrier configuration information of a downlink channel. In this way, when the mobile terminal performs cell switching, the mobile terminal can select an appropriate cell based on the carrier configuration information of the neighboring cell.
Fig. 13 is a schematic structural diagram of a wireless communication device according to a thirteenth embodiment of the present application. As shown in fig. 13, the wireless communication apparatus of this embodiment may include a processor 100 and a memory 200, where the processor 100 and the memory 200 may be connected through a bus, where the memory 200 is configured to store instructions, and the processor 100 is configured to execute the instructions stored in the memory 200, so as to implement the functions of the modules in fig. 8, and may be used as a network control node in a wireless communication network to transmit uplink carrier configuration information to a mobile terminal, so that the mobile terminal may perform uplink data transmission based on an uplink carrier in the uplink carrier configuration information.
Further, the processor 100 may also be configured to execute the above instructions to implement the functions of the modules in fig. 9, 10, 11, and 12.
Fig. 14 is a schematic structural diagram of a wireless communication device according to a fourteenth embodiment of the present application. As shown in fig. 14, the wireless communication device of the present embodiment may include a configuration information receiving module 21 and an uplink data transmitting module 22, where:
a configuration information receiving module 21, configured to receive uplink carrier configuration information of a cell, where the uplink carrier configuration information includes at least one uplink subcarrier, and a bandwidth of the at least one uplink subcarrier is smaller than a bandwidth of a downlink carrier of a downlink channel of the cell;
an uplink data sending module 22, configured to determine an uplink subcarrier in the at least one uplink subcarrier to send uplink data.
The wireless device in this embodiment may specifically be a mobile terminal in the wireless communication system, or a part of the mobile terminal, and may perform sending of uplink data according to a downlink carrier sent by a network control node in the wireless communication system, and specific implementation may refer to the description of the method embodiment of this application, which is not described herein again.
In this embodiment, the uplink carrier configuration information may further include an uplink subcarrier, where the uplink subcarrier is an uplink subcarrier allocated to the mobile terminal for uplink data transmission, and correspondingly, the uplink data transmitting module 22 may be specifically configured to transmit uplink data on the uplink subcarrier.
In addition, in this embodiment, the uplink carrier configuration information may also include subcarrier indication information corresponding to an uplink subcarrier, where the subcarrier indication information is used to indicate a state of the uplink subcarrier; accordingly, the uplink data sending module 22 is specifically configured to determine, based on the subcarrier indication information, one uplink subcarrier among the at least one uplink subcarrier to send uplink data. The subcarrier indication information may specifically be a value representing uplink subcarrier load conditions, or a value representing random access collision probability, or priority indication information.
On the basis of the foregoing technical solution of the fourteenth embodiment of the present application, further, the uplink carrier configuration information may include any one or a combination of multiple pieces of information: frequency point of uplink carrier, bandwidth of uplink subcarrier, length of radio frame of uplink channel, and Transmission Time Interval (TTI) information of uplink subcarrier and/or downlink subcarrier.
The transmission time interval information of the uplink subcarrier and/or the downlink subcarrier may be configured with different values for different channels, and the transmission time intervals of the uplink subcarrier and the downlink subcarrier may be the same or different. For example, there are 2 uplink subcarriers and 1 downlink carrier, and the bandwidth of the downlink carrier is greater than the bandwidth of the 2 uplink subcarriers, the following configuration may be performed: the length of a Downlink radio frame is 10ms, a subframe of a Downlink High Speed Downlink Shared Channel (HS-DSCH) is 2ms, a subframe of an uplink Dedicated Physical Control Channel (DPCCH), an uplink Dedicated Physical Data Channel (DPDCH), a High Speed Dedicated Physical Control Channel (HS-DPCCH), an Enhanced Dedicated Physical Data Channel (E-DPDCH), and an Enhanced Dedicated Physical Control Channel (E-DPCCH) has a minimum TTI subframe of 4ms, a cycle of 15 random access slots is 40ms, and a length of 20 ms.
On the basis of the above technical solution, further, the indication manner of the length of the radio frame of the uplink and downlink carriers may be a length value indicating a radio frame or a subframe of the uplink subcarrier channel and/or the downlink subcarrier channel, or a scale factor indicating a length of the radio frame or the subframe of the uplink subcarrier channel relative to a length of the radio frame or the subframe of the downlink subcarrier channel, and/or a scale factor indicating a length of the radio frame or the subframe of the downlink subcarrier channel relative to a length of the radio frame or the subframe of the uplink subcarrier channel. When the UE receives the uplink carrier configuration information, uplink access or downlink reception may be performed according to the length of the radio frame or subframe.
Fig. 15 is a schematic structural diagram of a wireless communication device according to a fifteenth embodiment of the present application. As shown in fig. 15, the wireless communication apparatus of this embodiment may include a processor 100 and a memory 200, where the processor 100 and the memory 200 may be connected through a bus, where the memory 200 is configured to store instructions, and the processor 100 is configured to execute the instructions stored in the memory 200, so as to implement the functions of the modules in fig. 14, and may be used as a mobile terminal in a wireless communication network, configured to receive uplink carrier configuration information sent by a network control node, and may perform uplink data transmission based on an uplink carrier in the uplink carrier configuration information.
Fig. 16 is a schematic structural diagram of a wireless communication system according to a sixteenth embodiment of the present application. As shown in fig. 16, the wireless communication system of the present embodiment may include a network device 10 and a mobile terminal 20, wherein the network device 10 may be the wireless communication apparatus shown in fig. 8-13, and the mobile terminal 20 may include the wireless communication apparatus shown in fig. 14 or fig. 15.
The network device 10 in this embodiment may be specifically a network control node in a wireless communication system, and may communicate with the mobile terminal 20 through a base station, and when the mobile terminal 20 performs uplink data transmission, may perform uplink data transmission based on an uplink subcarrier transmitted by the network device 10, and may improve throughput of uplink data in the communication system.
It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (28)
1. A method of wireless communication, comprising:
determining uplink carrier configuration information of an uplink channel in a cell, wherein the uplink carrier configuration information comprises at least one uplink subcarrier, and the bandwidth of the at least one uplink subcarrier is smaller than that of a downlink carrier of a downlink channel of the cell;
and sending the uplink carrier configuration information to a mobile terminal so that the mobile terminal determines one uplink subcarrier from the at least one uplink subcarrier to send uplink data.
2. The wireless communication method according to claim 1, wherein the uplink carrier configuration information further includes subcarrier indication information corresponding to uplink subcarriers, so that the mobile terminal determines one uplink subcarrier among the at least one uplink subcarrier based on the subcarrier indication information to perform uplink data transmission;
wherein, the subcarrier indication information is used for indicating the state of uplink subcarriers.
3. The wireless communication method according to claim 1 or 2, wherein the uplink channel comprises at least one of a random access channel, an enhanced random access channel, a physical random access channel, a dedicated physical control channel, a dedicated physical data channel, a dedicated physical control channel for an enhanced uplink dedicated channel, a dedicated physical data channel for an enhanced uplink dedicated channel, and an uplink dedicated physical control channel for a high speed downlink shared channel.
4. The wireless communication method according to claim 1, wherein the sending the uplink carrier configuration information to the mobile terminal, so that the mobile terminal determines one uplink subcarrier from the at least one uplink subcarrier for uplink data sending comprises:
allocating corresponding uplink sub-carriers to each random access channel;
and when a random access channel is sent to the mobile terminal, sending an uplink subcarrier corresponding to the random access channel, so that when the mobile terminal accesses a cell based on the random access channel, the mobile terminal sends uplink data on the uplink subcarrier corresponding to the random access channel.
5. The wireless communication method according to claim 4, further comprising:
allocating subcarrier indication information for uplink subcarriers of each random access channel, wherein the subcarrier indication information is used for indicating the state of the uplink subcarriers corresponding to the random access channels;
when the random access channel is sent to the mobile terminal, the uplink sub-carrier corresponding to the random access channel is sent, so that when the mobile terminal accesses the cell based on the random access channel, the sending of the uplink data on the uplink sub-carrier corresponding to the random access channel comprises the following steps:
and when a random access channel is sent to the mobile terminal, sending uplink subcarriers and subcarrier indication information corresponding to the random access channel, so that the mobile terminal determines the random access channel of the access cell based on the subcarrier indication information and sends uplink data on the uplink subcarriers corresponding to the random access channel of the access cell.
6. The wireless communication method according to claim 2 or 5, wherein the subcarrier indication information is a value indicating uplink subcarrier loading conditions, or a value indicating a probability of random access collision, or information indicating uplink subcarrier priority.
7. The wireless communication method according to any of claims 1-2 and 4-5, wherein the sending the uplink carrier configuration information to the mobile terminal comprises:
and sending the uplink carrier configuration information to the mobile terminal through a high-level dedicated signaling or a physical layer signaling.
8. The method according to any of claims 1-2 and 4-5, wherein the uplink carrier configuration information comprises any one or more of the following information:
the frequency point of the uplink subcarrier, the bandwidth of the uplink subcarrier, the length of a wireless frame of an uplink channel and the transmission time interval of the uplink subcarrier; wherein, the transmission time interval of the uplink sub-carrier is the same as or different from the transmission time interval of the downlink sub-carrier.
9. A method of wireless communication, comprising:
receiving uplink carrier configuration information of a cell, wherein the uplink carrier configuration information comprises at least one uplink subcarrier, and the bandwidth of the at least one uplink subcarrier is smaller than that of a downlink carrier of a downlink channel of the cell;
and determining one uplink subcarrier in the at least one uplink subcarrier to transmit uplink data.
10. The wireless communication method according to claim 9, wherein the uplink carrier configuration information includes an uplink subcarrier, and the uplink subcarrier is an uplink subcarrier allocated to the mobile terminal for uplink data transmission;
the determining of one uplink subcarrier in the at least one uplink subcarrier for uplink data transmission includes:
and transmitting uplink data on the uplink subcarrier.
11. The wireless communication method according to claim 9, wherein the uplink carrier configuration information further includes subcarrier indication information corresponding to uplink subcarriers, and the subcarrier indication information is used for indicating states of the uplink subcarriers;
the determining of one uplink subcarrier in the at least one uplink subcarrier for uplink data transmission includes:
and determining one uplink subcarrier in the at least one uplink subcarrier to transmit uplink data based on the subcarrier indication information.
12. The wireless communication method according to claim 11, wherein the subcarrier indication information is a value indicating uplink subcarrier loading conditions, or a value indicating a probability of random access collision, or information indicating uplink subcarrier priority.
13. The wireless communication method according to any of claims 9 to 12, wherein the uplink carrier configuration information comprises any one or a combination of the following information:
the frequency point of the uplink subcarrier, the bandwidth of the uplink subcarrier, the length of a wireless frame of an uplink channel and the transmission time interval of the uplink subcarrier; wherein, the transmission time interval of the uplink sub-carrier is the same as or different from the transmission time interval of the downlink sub-carrier.
14. A wireless communications apparatus, comprising:
a carrier configuration information determining module, configured to determine uplink carrier configuration information of an uplink channel in a cell, where the uplink carrier configuration information includes at least one uplink subcarrier, and a bandwidth of the at least one uplink subcarrier is smaller than a bandwidth of a downlink carrier of a downlink channel of the cell;
and the configuration information sending module is used for sending the uplink carrier configuration information to the mobile terminal so that the mobile terminal determines one uplink subcarrier from the at least one uplink subcarrier to send uplink data.
15. The wireless communication apparatus according to claim 14, wherein the uplink carrier configuration information further includes subcarrier indication information corresponding to uplink subcarriers, so that the mobile terminal determines one uplink subcarrier among the at least one uplink subcarrier based on the subcarrier indication information to perform uplink data transmission;
wherein, the subcarrier indication information is used for indicating the state of uplink subcarriers.
16. The wireless communications apparatus of claim 14 or 15, wherein the uplink channel comprises at least one of a random access channel, an enhanced random access channel, a physical random access channel, a dedicated physical control channel, a dedicated physical data channel, a dedicated physical control channel for an enhanced uplink dedicated channel, a dedicated physical data channel for an enhanced uplink dedicated channel, and an uplink dedicated physical control channel for a high speed downlink shared channel.
17. The wireless communication apparatus of claim 14, wherein the configuration information sending module comprises:
a first carrier allocation unit, configured to allocate a corresponding uplink subcarrier to each random access channel;
a first carrier sending unit, configured to send an uplink subcarrier corresponding to a random access channel when sending the random access channel to a mobile terminal, so that when the mobile terminal accesses a cell based on the random access channel, the mobile terminal sends uplink data on the uplink subcarrier corresponding to the random access channel.
18. The wireless communications apparatus of claim 17, further comprising:
a first indication information allocation unit, configured to allocate subcarrier indication information to an uplink subcarrier of each random access channel, where the subcarrier indication information is used to indicate a state of the uplink subcarrier corresponding to the random access channel;
the first carrier sending unit is specifically configured to send uplink subcarriers and subcarrier indication information corresponding to a random access channel when sending the random access channel to a mobile terminal, so that the mobile terminal determines the random access channel of an access cell based on the subcarrier indication information and sends uplink data on the uplink subcarriers corresponding to the determined random access channel of the access cell.
19. The wireless communication apparatus according to claim 15 or 18, wherein the subcarrier indication information is a value indicating uplink subcarrier loading conditions, or a value indicating a probability of random access collision, or information indicating uplink subcarrier priority.
20. The wireless communications apparatus of any one of claims 14-15 and 17-18, wherein the configuration information sending module is specifically configured to: and sending the uplink carrier configuration information to the mobile terminal through a high-level dedicated signaling or a physical layer signaling.
21. The wireless communications apparatus of any one of claims 14 to 15 and 17 to 18, wherein the uplink carrier configuration information includes any one or a combination of the following information:
the frequency point of the uplink subcarrier, the bandwidth of the uplink subcarrier, the length of a wireless frame of an uplink channel and the transmission time interval of the uplink subcarrier; wherein, the transmission time interval of the uplink sub-carrier is the same as or different from the transmission time interval of the downlink sub-carrier.
22. A wireless communications apparatus, comprising:
a configuration information receiving module, configured to receive uplink carrier configuration information of a cell, where the uplink carrier configuration information includes at least one uplink subcarrier, and a bandwidth of the at least one uplink subcarrier is smaller than a bandwidth of a downlink carrier of a downlink channel of the cell;
and the uplink data sending module is used for determining one uplink subcarrier in the at least one uplink subcarrier to send the uplink data.
23. The wireless communications apparatus of claim 22, wherein the uplink carrier configuration information includes an uplink subcarrier, and the uplink subcarrier is an uplink subcarrier allocated to the mobile terminal for uplink data transmission;
the uplink data sending module is specifically configured to send uplink data on the uplink subcarrier.
24. The wireless communications apparatus of claim 22, wherein the uplink carrier configuration information further includes subcarrier indication information corresponding to uplink subcarriers, and the subcarrier indication information is used for indicating states of the uplink subcarriers;
the uplink data sending module is specifically configured to determine, based on the subcarrier indication information, one uplink subcarrier among the at least one uplink subcarrier to send uplink data.
25. The wireless communications apparatus of claim 24, wherein the subcarrier indication information is a value indicating uplink subcarrier loading conditions, or a value indicating a probability of random access collision, or information indicating uplink subcarrier priority.
26. The wireless communications apparatus of any of claims 22 to 25, wherein the uplink carrier configuration information comprises any one or a combination of the following information:
the frequency point of the uplink subcarrier, the bandwidth of the uplink subcarrier, the length of a wireless frame of an uplink channel and the transmission time interval of the uplink subcarrier; wherein, the transmission time interval of the uplink sub-carrier is the same as or different from the transmission time interval of the downlink sub-carrier.
27. A wireless communication system comprising a network device and a mobile terminal, wherein the network device comprises the wireless communication apparatus of any one of claims 14 to 21, and wherein the mobile terminal comprises the wireless communication apparatus of any one of claims 22 to 26.
28. A computer-readable storage medium having stored therein instructions which, when run on a computer, cause the computer to perform the method of any of claims 1 to 8, or the method of any of claims 9 to 13.
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| CN201380003921.7A CN103947251B (en) | 2012-10-22 | 2013-05-03 | Wireless communications method, apparatus and system |
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| AU2017439929A1 (en) * | 2017-11-15 | 2020-06-18 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for determining non-contention random access resource, network device and terminal device |
| BR112021013508A2 (en) * | 2019-01-11 | 2021-09-14 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | METHOD TO DETERMINE A CHANNEL ACCESS SCHEME, TERMINAL DEVICE, AND NETWORK DEVICE |
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| KR101621102B1 (en) * | 2009-04-21 | 2016-05-16 | 엘지전자 주식회사 | Apparatus and method of configuring carrier in multiple carrier system |
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| CN102006633A (en) * | 2009-09-02 | 2011-04-06 | 大唐移动通信设备有限公司 | Information indication method, system and device |
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