WO2023207506A1

WO2023207506A1 - Shared resource allocation method and apparatus

Info

Publication number: WO2023207506A1
Application number: PCT/CN2023/085147
Authority: WO
Inventors: 王婷; 苏宏家; 卢磊
Original assignee: 华为技术有限公司
Priority date: 2022-04-28
Filing date: 2023-03-30
Publication date: 2023-11-02
Also published as: CN117041984A

Abstract

A shared resource allocation method and apparatus, relating to the technical field of communications. A first terminal device can send, in an obtained COT, first information to a second terminal device, so as to share a first time period with the second terminal device; the first terminal device can also perform channel detection in a second time period, and when a channel detection result is less than or equal to a preset threshold, the first terminal device sends first data in the first time period or sends second information in the first time period, so as to ensure that the state of a channel is busy within the first time period, thereby avoiding preemption by other terminal devices, and reducing the risk of channel preemption during COT sharing. The first time period is used for the second terminal device to send information, the start time-point of the second time period is equal to the start time-point of the first time period, the second information is used for indicating a third time period located in the COT, and the start time-point of the third time period is earlier than the end time-point of the first time period.

Description

Shared resource allocation method and device

This application claims priority to the Chinese patent application submitted to the State Intellectual Property Office on April 28, 2022, with application number 202210470956.2 and application title "Shared Resource Allocation Method and Device", the entire content of which is incorporated into this application by reference. .

Technical field

The present application relates to the field of communication technology, and in particular, to a shared resource allocation method and device.

Background technique

In the communication system, the terminal device can detect whether the channel is idle based on the listen before talk (LBT) mechanism. If the channel is idle, it can occupy the channel and perform data transmission within the channel occupancy time (COT).

Among them, the LBT mechanism can support COT sharing, that is, the current terminal device can share the COT occupied by itself with other terminal devices, and other terminal devices occupy the channel according to the COT shared by the current terminal device to realize data transmission.

However, if a shared terminal device does not occupy the channel within the shared time period, it may cause the channel to be occupied by other terminal devices that are not shared during the shared time period, which may subsequently cause other shared terminals to occupy the channel. The device cannot occupy the channel according to the time period it is shared.

Therefore, how to avoid channel preemption during COT sharing has become an urgent technical issue to be solved.

Contents of the invention

The embodiments of the present application provide a shared resource allocation method and device, which can reduce the risk of channel preemption when COT is shared.

In a first aspect, embodiments of the present application provide a shared resource allocation method. The method may include: the first terminal device obtains the channel occupancy time COT; the first terminal device sends the first information to the second terminal device within the COT; wherein, the first terminal device A piece of information is used to indicate a first time period. The first time period is the time period that the first terminal device shares with the second terminal device. The first time period is used for the second terminal device to send information; the first terminal device sends information at the second time. Channel detection is performed in each period; wherein, the starting time of the second time period is equal to the starting time of the first time period, and the length of the second time period is a preconfigured or predefined length; when the channel detection result is less than or equal to the preset threshold when the first terminal device sends the first data within the first time period; or when the channel detection result is less than or equal to the preset threshold, the first terminal device sends the second information within the first time period; wherein, the second The information is used to indicate the third time period, the starting time of the third time period is earlier than the end time of the first time period, and the third time period is located within the COT.

Based on the first aspect, when the first terminal device shares the first time period with the second terminal device according to the obtained COT, the first terminal device can perform channel detection in the second time period. When the channel detection result is less than or equal to the predetermined When the threshold is set, the first terminal device can determine that the second terminal device does not occupy the channel within the first time period. At this time, the first terminal device can send the first data within the first time period or send data within the first time period. The second information is to ensure that the channel status is busy within the first time period, thereby avoiding being preempted by other terminal devices and reducing the risk of channel being preempted when COT is shared.

In a possible design, the first data includes one or more of the following: all-zero data and repeated data; where the repeated data is data sent by the first terminal device within the COT.

Based on this possible design, the first terminal device can send all-zero data in the first time period to occupy the channel, also Repeated data can be sent in the first time period to occupy the channel, or all-zero data and repeated data can be sent in the first time period to occupy the channel, providing multiple possibilities for the first terminal device to occupy the channel in the first time period. sexual program.

In a possible design, the third time period is a time period shared by the first terminal device with the third terminal device, and the third time period is used by the third terminal device to send information.

Based on this possible design, the first terminal device can share the third time period with the third terminal device, and the third terminal device can occupy the channel during the third time period, thereby reducing the risk of channel preemption during COT sharing.

In a possible design, after the first terminal device sends the second information within the first time period, the method further includes: when the time between the sending time of the second information and the starting time of the third time period is greater than or equal to When the duration is preset, the first terminal device sends the first data between the sending time of the second information and the starting time of the third time period.

Based on this possible design, when the duration between the sending moment of the second information and the starting moment of the third time period is greater than or equal to the preset time length, the first terminal device can send the second information between the sending moment and the third time period. The first data is sent between the starting moments of the segment to occupy the channel, ensuring that the channel status is busy, thereby preventing the channel from being preempted by other terminal devices, and reducing the risk of the channel being preempted when COT is shared, thereby ensuring that the third terminal device can subsequently The channel is occupied during the third time period.

In the second aspect, embodiments of the present application provide a communication device. The communication device can realize the functions performed by the first terminal device in the above-mentioned first aspect or possible designs of the first aspect. The functions can be executed by hardware and corresponding software. accomplish. The hardware or software includes one or more modules corresponding to the above functions. For example, transceiver module and processing module. The processing module is used to obtain the channel occupancy time COT; the transceiver module is used to send the first information to the second terminal device within the COT; wherein the first information is used to indicate the first time period, and the first time period is the first terminal device A time period shared with the second terminal device. The first time period is used for the second terminal device to send information; the processing module is also used for channel detection in the second time period; where the starting time of the second time period is equal to the first time period. The starting moment of a time period, the duration of the second time period is a preconfigured or predefined duration; the transceiver module is also used to send the first message within the first time period when the channel detection result is less than or equal to the preset threshold. data; or, the transceiver module is also configured to send second information within the first time period when the channel detection result is less than or equal to the preset threshold; wherein the second information is used to indicate the third time period, and the third time period The starting time is earlier than the end time of the first time period, and the third time period is located within the COT.

In a possible design, the transceiver module is also configured to, after sending the second information within the first time period, when the time between the sending time of the second information and the starting time of the third time period is greater than or equal to a preset time. When the duration is specified, the first data is sent between the sending time of the second information and the starting time of the third time period.

It should be noted that the specific implementation of the communication device in the second aspect may refer to the behavioral function of the first terminal device in the shared resource allocation method provided by the first aspect or any possible design of the first aspect.

In a third aspect, embodiments of the present application provide a communication device, which may be a first terminal device or a chip or a system on a chip in the first terminal device. The communication device can realize the functions performed by the first terminal device in the above aspects or possible designs, and the functions can be realized by hardware. In a possible design, the communication device may include: a transceiver and a processor. The transceiver and the processor may be used to support the communication device to implement the functions involved in the above-mentioned first aspect or any possible design of the first aspect. For example: the processor can be used to obtain channel occupancy Time COT; the transceiver can be used to send the first information to the second terminal device within the COT; wherein the first information is used to indicate the first time period, and the first time period is the time shared by the first terminal device to the second terminal device. period, the first time period is used for the second terminal device to send information; the processor can also be used to perform channel detection in the second time period; wherein the starting time of the second time period is equal to the starting time of the first time period, The duration of the second time period is a preconfigured or predefined duration; the transceiver is also used to send the first data in the first time period when the channel detection result is less than or equal to the preset threshold; or, the transceiver is also used to When the channel detection result is less than or equal to the preset threshold, the second information is sent within the first time period; wherein the second information is used to indicate the third time period, and the starting time of the third time period is earlier than the first time period At the end of time, the third time period is located in COT. In yet another possible design, the communication device may further include a memory for storing computer execution instructions and data of the communication device. When the communication device is running, the transceiver and the processor execute the computer execution instructions stored in the memory, so that the communication device executes the shared resources as described in the above first aspect or any possible design of the first aspect. Allocation method.

The specific implementation of the communication device in the third aspect may refer to the behavioral function of the first terminal device in the shared resource allocation method provided by the first aspect or any possible design of the first aspect.

In the fourth aspect, embodiments of the present application provide a shared resource allocation method. The method may include: the first terminal device obtains the channel occupancy time COT; the first terminal device sends the first information to the second terminal device within the COT; wherein, the first terminal device A piece of information is used to indicate a first time period. The first time period is a time period shared by the first terminal device to the second terminal device. The first time period is used for the second terminal device to send information; the first terminal device receives information from the second terminal device. First feedback information from the terminal device; wherein the first feedback information is used to indicate that the second terminal device does not occupy the channel within the first time period; the first terminal device sends the first data within the first time period; or, the first The terminal device sends the second information within the first time period; wherein the second information is used to indicate the third time period, the starting time of the third time period is earlier than the end time of the first time period, and the third time period is located at COT Inside.

Based on the fourth aspect, when the first terminal device determines that the second terminal device does not occupy the channel within the first time period according to the first feedback information, the first terminal device may send the first data or the second information within the first time period. , to occupy the channel within the first period of time to ensure that the channel status is busy, thereby preventing the channel from being preempted by other terminal devices and reducing the risk of the channel being preempted when COT is shared.

In one possible design, the first feedback information is received in the fourth time period; wherein the starting time of the fourth time period is later than the first time, and the first time is the sending time of the first information delayed by the third time. The first time delay is the time delay for the second terminal device to determine the first feedback information; the end time of the fourth time period is earlier than the second time, and the second time is the start time of the first time period earlier than At the moment of the second delay, the second delay is the delay for the first terminal device to process the first feedback information.

Based on this possible design, the first terminal device can receive the first feedback information in the fourth time period to improve the reception reliability of the first feedback information. At the same time, the end time of the fourth time period is earlier than the second time, which can ensure The first terminal device has sufficient time to process the first feedback information before the first time period.

In one possible design, the fourth time period is a preconfigured or predefined time period.

Based on this possible design, the fourth time period can be a preconfigured time period or a predefined time period, providing multiple feasible solutions for the design of the fourth time period.

Based on this possible design, the first terminal device can share the third time period with the third terminal device, and the third terminal device can occupy the channel during the third time period to reduce the risk of channel preemption during COT sharing.

In a possible design, before the first terminal device receives the first feedback information from the second terminal device, the method further includes: the first terminal device sends the first information to the third terminal device; wherein the first information also includes the third terminal device. Five time periods, the fifth time period is the time period for the first terminal device to share with the third terminal device, and the fifth time period is used for the third terminal device to send information.

Based on this possible design, the first terminal device can share the COT to multiple terminal devices through first information, and the first information can be used to indicate the time period that the first terminal device shares with each terminal device.

In a possible design, after the first terminal device sends the first information to the third terminal device, the method further includes: the first terminal device receives second feedback information from the third terminal device, wherein the second feedback information is used for Instruct the third terminal device to occupy the channel within the fifth time period.

Based on this possible design, after the first terminal device sends the first information to the third terminal device, it can also receive the second feedback information sent by the third terminal device to determine whether the third terminal device is at the time shared by the first terminal device. The channel is occupied within the segment. If it is occupied, the third terminal device can send information. If it is not occupied, the first terminal device can occupy the channel during the time period shared with the third terminal device to ensure that the channel status is busy, thereby preventing the channel from being occupied. Preempted by other terminal equipment, thereby reducing the risk of channel preemption when COT is shared.

In one possible design, the second feedback information is received within the fourth time period; wherein the starting time of the fourth time period is later than the first time, and the first time is the sending time of the first information delayed by the third time. The first time delay is the time delay for the second terminal device to determine the first feedback information; the end time of the fourth time period is earlier than the second time, and the second time is the start time of the first time period earlier than At the moment of the second delay, the second delay is the delay for the first terminal device to process the first feedback information.

Based on this possible design, the first terminal device can receive the second feedback information in the fourth time period to improve the reception reliability of the second feedback information. At the same time, the end time of the fourth time period is earlier than the second time, which can ensure The first terminal device has sufficient time to process the second feedback information before the first time period.

In one possible design, the starting time of the fifth time period is later than the starting time of the third time period.

Based on this possible design, when the first terminal device believes that the second terminal device does not occupy the first time period, if the first terminal device also shares the COT with the third terminal device after the first time period, the first terminal device can will share The fifth time period given to the third terminal device is advanced forward and becomes the third time period. The third terminal device can occupy the channel during the third time period, thereby reducing the risk of channel preemption when COT is shared and ensuring that the third terminal device can occupy the channel according to the shared time period.

In the fifth aspect, embodiments of the present application provide a communication device. The communication device can realize the functions performed by the first terminal device in the above-mentioned fourth aspect or the possible design of the fourth aspect. The functions can be executed by hardware and corresponding software. accomplish. The hardware or software includes one or more modules corresponding to the above functions. For example, transceiver module and processing module. The processing module is used to obtain the channel occupancy time COT; the transceiver module is used to send the first information to the second terminal device within the COT; wherein the first information is used to indicate the first time period, and the first time period is the first terminal device The time period shared with the second terminal device, the first time period is used for the second terminal device to send information; the transceiver module is also used to receive the first feedback information from the second terminal device; wherein the first feedback information is used to indicate The second terminal device does not occupy the channel in the first time period; the transceiver module is also used to send the first data in the first time period; or the transceiver module is also used to send the second information in the first time period; The second information is used to indicate the third time period, the starting time of the third time period is earlier than the end time of the first time period, and the third time period is located within the COT.

In a possible design, the transceiver module is also configured to, after sending the second information within the first time period, when the time between the sending time of the second information and the starting time of the third time period is greater than or equal to a preset time. time period, the first terminal device sends the first data between the sending time of the second information and the starting time of the third time period.

In a possible design, the transceiver module is also configured to send the first information to the third terminal device before receiving the first feedback information from the second terminal device; wherein the first information also includes the fifth time period, The fifth time period is a time period shared by the first terminal device with the third terminal device, and the fifth time period is used by the third terminal device to send information.

In a possible design, the transceiver module is further configured to receive second feedback information from the third terminal device after sending the first information to the third terminal device, where the second feedback information is used to instruct the third terminal device to send the first information to the third terminal device. The channel is occupied during the fifth time period.

It should be noted that the specific implementation of the communication device in the fifth aspect may refer to the fourth aspect or any of the fourth aspects. One possible design provides behavioral functions of the first terminal device in the shared resource allocation method.

In a sixth aspect, embodiments of the present application provide a communication device, which may be a chip or a system-on-chip in the first terminal device. The communication device can realize the functions performed by the first terminal device in the above aspects or possible designs, and the functions can be realized by hardware. In a possible design, the communication device may include: a transceiver and a processor. The transceiver and the processor may be used to support the communication device to implement the functions involved in the above-mentioned fourth aspect or any possible design of the fourth aspect. For example: the processor can be used to obtain the channel occupancy time COT; the transceiver can be used to send the first information to the second terminal device within the COT; wherein the first information is used to indicate the first time period, and the first time period is the first The time period that the terminal device shares with the second terminal device, the first time period is used for the second terminal device to send information; the transceiver is also used to receive the first feedback information from the second terminal device; wherein the first feedback information is used for Instructing the second terminal device not to occupy the channel within the first time period; the transceiver is also used to send the first data within the first time period; or, the transceiver is also used to send the second information within the first time period; wherein , the second information is used to indicate the third time period, the starting time of the third time period is earlier than the end time of the first time period, and the third time period is located within the COT. In yet another possible design, the communication device may further include a memory, which is used to store necessary computer execution instructions and data for the communication device. When the communication device is running, the transceiver and the processor execute the computer execution instructions stored in the memory, so that the communication device executes the shared resources described in the fourth aspect or any possible design of the fourth aspect. Allocation method.

The specific implementation of the communication device in the sixth aspect may refer to the behavioral function of the first terminal device in the shared resource allocation method provided by the fourth aspect or any possible design of the fourth aspect.

In a seventh aspect, embodiments of the present application provide a shared resource allocation method. The method may include: the second terminal device receives first information from the first terminal device; wherein the first information is used to indicate the first time period, The first time period is a time period shared by the first terminal device to the second terminal device, and the first time period is used for the second terminal device to send information; the second terminal device sends first feedback information to the first terminal device; wherein, the first time period A piece of feedback information is used to indicate that the second terminal device does not occupy the channel within the first time period.

Based on the seventh aspect, the second terminal device can determine the first time period shared by the first terminal device according to the first information. If the second terminal device does not occupy the channel in the first time period, the second terminal device can send a request to the first terminal device. Send the first feedback information. After receiving the first feedback information, the first terminal device can send the first data or the second information within the first time period to occupy the channel to ensure that the channel status is busy, thereby preventing the channel from being occupied by other terminals. Device preemption reduces the risk of channel preemption when COT is shared.

In one possible design, the first feedback information is sent in the fourth time period; wherein the starting time of the fourth time period is later than the first time, and the first time is the sending time of the first information delayed by the third time. The first time delay is the time delay for the second terminal device to determine the first feedback information; the end time of the fourth time period is earlier than the second time, and the second time is the start time of the first time period earlier than At the moment of the second delay, the second delay is the delay for the first terminal device to process the first feedback information.

Based on this possible design, the second terminal device can send the first feedback information within the fourth time period to improve the reliability of sending the first feedback information. The starting time of the fourth time period is later than the first time, which can ensure that the second terminal device has enough time to determine the first feedback information based on the first information before the fourth time period.

In an eighth aspect, embodiments of the present application provide a communication device. The communication device can realize the functions performed by the second terminal device in the above-mentioned seventh aspect or possible designs of the seventh aspect. The functions can be executed by hardware and corresponding software. accomplish. The hardware or software includes one or more modules corresponding to the above functions. For example, transceiver module and processing module. A transceiver module, configured to receive first information from the first terminal device; wherein the first information is used to indicate a first time period, and the first time period is a time period shared by the first terminal device with the second terminal device. The time period is used for the second terminal device to send information; the transceiver module is also used to send first feedback information to the first terminal device; wherein the first feedback information is used to indicate that the second terminal device does not occupy the channel within the first time period .

It should be noted that the specific implementation of the communication device in the eighth aspect may refer to the behavioral function of the second terminal device in the shared resource allocation method provided by the seventh aspect or any possible design of the seventh aspect.

In a ninth aspect, embodiments of the present application provide a communication device, which may be a second terminal device or a chip or a system on a chip in the second terminal device. The communication device can realize the functions performed by the second terminal device in the above aspects or possible designs, and the functions can be realized by hardware. In a possible design, the communication device may include: a transceiver and a processor. The transceiver and processor may be used to support the communication device to implement the functions involved in the seventh aspect or any possible design of the seventh aspect. For example: the transceiver may be used to receive first information from a first terminal device; wherein the first information is used to indicate a first time period, and the first time period is a time period shared by the first terminal device to the second terminal device, The first time period is used for the second terminal device to send information; the transceiver can also be used to send first feedback information to the first terminal device; wherein the first feedback information is used to indicate that the second terminal device does not send information within the first time period. occupy the channel. In yet another possible design, the communication device may further include a memory, which is used to store necessary computer execution instructions and data for the communication device. When the communication device is running, the transceiver and the processor execute the computer execution instructions stored in the memory, so that the communication device executes the shared resources as described in the seventh aspect or any possible design of the seventh aspect. Allocation method.

The specific implementation of the communication device in the ninth aspect may refer to the behavioral function of the second terminal device in the shared resource allocation method provided by the seventh aspect or any possible design of the seventh aspect.

In a tenth aspect, embodiments of the present application provide a shared resource allocation method, which may include: a third terminal device receiving first information from the first terminal device; wherein the first information is used to indicate the fifth time period, The fifth time period is the time period shared by the first terminal device to the third terminal device, and the fifth time period is used for the third terminal device to send information; the third terminal device sends the second feedback information to the first terminal device; wherein, the second The feedback information is used to instruct the third terminal device to occupy the channel within the fifth time period.

Based on the tenth aspect, by sending the second feedback information to the first terminal device, the third terminal device can cause the first terminal device to determine whether the third terminal device is in the time period shared by the first terminal device according to the received second feedback information. channel occupied within.

In a possible design, the third terminal device receives the second information from the first terminal device; wherein the second information is used to indicate the third time period, and the starting time of the third time period is earlier than the fifth time period. Starting time, third time period Within the channel occupancy time COT obtained by the first terminal device, the third time period is the time period shared by the first terminal device with the third terminal device, and the third time period is used by the third terminal device to send information.

Based on this possible design, when the first terminal device believes that the second terminal device does not occupy the first time period, if the first terminal device also shares the COT with the third terminal device after the first time period, the first terminal device can The fifth time period shared to the third terminal device is advanced forward and becomes the third time period. The third terminal device can occupy the channel during the third time period to ensure that the channel status is busy, thereby preventing the channel from being preempted by other terminal devices, thereby reducing the risk of the channel being preempted during COT sharing, and ensuring that the third terminal device can be shared according to The channel is occupied for the period of time.

Based on this possible design, the third terminal device can send the second feedback information within the fourth time period to improve the sending reliability of the second feedback information. The starting time of the fourth time period is later than the first time, which can ensure that the third terminal device has enough time to determine the second feedback information based on the first information before the fourth time period.

In the eleventh aspect, embodiments of the present application provide a communication device. The communication device can realize the functions performed by the third terminal device in the tenth aspect or the possible design of the tenth aspect. The functions can be performed by hardware. Software Implementation. The hardware or software includes one or more modules corresponding to the above functions. For example, transceiver module and processing module. A transceiver module, configured to receive first information from the first terminal device; wherein the first information is used to indicate a fifth time period, and the fifth time period is a time period shared by the first terminal device with the third terminal device. The time period is used for the third terminal device to send information; the transceiver module is also used to send second feedback information to the first terminal device; wherein the second feedback information is used to instruct the third terminal device to occupy the channel within the fifth time period.

In a possible design, the transceiver module is also used to receive second information from the first terminal device; wherein the second information is used to indicate a third time period, and the starting time of the third time period is earlier than the fifth time. The starting time of the segment, the third time segment is located within the channel occupancy time COT acquired by the first terminal device, the third time segment is the time segment shared by the first terminal device to the third terminal device, and the third time segment is used for the third The terminal device sends information.

It should be noted that the specific implementation of the communication device in the eleventh aspect may refer to the behavioral function of the third terminal device in the shared resource allocation method provided by the tenth aspect or any possible design of the tenth aspect.

In a twelfth aspect, embodiments of the present application provide a communication device, which may be a chip or a system-on-chip in a third terminal device. The communication device can realize the functions performed by the third terminal device in the above aspects or possible designs, and the functions can be realized by hardware. In a possible design, the communication device may include: a transceiver and a processor. The transceiver and the processor may be used to support the communication device to implement the functions involved in the tenth aspect or any possible design of the tenth aspect. For example: the transceiver may be used to receive the first information from the first terminal device; wherein the first information is used to indicate the fifth time period, and the fifth time period is shared by the first terminal device with the third terminal device. The time period of the terminal device, the fifth time period is used for the third terminal device to send information; the transceiver can also be used to send second feedback information to the first terminal device; wherein the second feedback information is used to indicate that the third terminal device is in The channel is occupied during the fifth time period. In yet another possible design, the communication device may further include a memory, which is used to store necessary computer execution instructions and data for the communication device. When the communication device is running, the transceiver and the processor execute the computer execution instructions stored in the memory, so that the communication device executes the shared resources as described in the tenth aspect or any possible design of the tenth aspect. Allocation method.

The specific implementation of the communication device in the twelfth aspect may refer to the behavioral function of the third terminal device in the shared resource allocation method provided by the tenth aspect or any possible design of the tenth aspect.

In a thirteenth aspect, a communication device is provided. The communication device includes one or more processors; one or more processors for running computer programs or instructions. When the one or more processors execute the computer instructions or instructions When causing the communication device to perform the shared resource allocation method described in the first aspect or any possible design of the first aspect, or perform the shared resource allocation described in the fourth aspect or any possible design of the fourth aspect Method, or perform the shared resource allocation method as described in the seventh aspect or any possible design of the seventh aspect, or perform the shared resource allocation method as described in the tenth aspect or any possible design of the tenth aspect.

In a possible design, the communication device further includes one or more memories, the one or more memories are coupled to one or more processors, and the one or more memories are used to store the above-mentioned computer programs or instructions. In a possible implementation, the memory is located outside the communication device. In another possible implementation, the memory is located within the communication device. In the embodiment of the present application, the processor and the memory may also be integrated into one device, that is, the processor and the memory may also be integrated together. In a possible implementation, the communication device further includes a transceiver, and the transceiver is used to receive information and/or send information.

In a possible design, the communication device further includes one or more communication interfaces, the one or more communication interfaces are coupled to one or more processors, and the one or more communication interfaces are used to communicate with other modules other than the communication device. communicate.

A fourteenth aspect provides a communication device, which includes an input-output interface and a logic circuit; the input-output interface is used to input and/or output information; and the logic circuit is used to perform the first aspect or the first aspect. Any possible design of the shared resource allocation method, or execution of the fourth aspect or any possible design of the shared resource allocation method of the fourth aspect, or execution of the seventh aspect or any of the seventh aspect Possible design of the shared resource allocation method, or execution of the shared resource allocation method described in the tenth aspect or any possible design of the tenth aspect, processing and/or generating information according to the information.

In a fifteenth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores computer instructions or programs. When the computer instructions or programs are run on a computer, it causes the first aspect or any of the first aspects. The shared resource allocation method described in one possible design is executed, or the shared resource allocation method described in the fourth aspect or any possible design of the fourth aspect is executed, or the seventh aspect or any of the seventh aspect is executed. The shared resource allocation method described in one possible design is executed, or the shared resource allocation method described in the tenth aspect or any possible design of the tenth aspect is executed.

In a sixteenth aspect, a computer program product containing computer instructions is provided, which when run on a computer causes the shared resource allocation method as described in the first aspect or any possible design of the first aspect to be executed, Or the shared resource allocation method described in the fourth aspect or any possible design of the fourth aspect is executed, or the shared resource allocation method described in the seventh aspect or any possible design of the seventh aspect is executed, Or the shared resource allocation method described in the tenth aspect or any possible design of the tenth aspect is executed.

In a seventeenth aspect, embodiments of the present application provide a computer program that, when run on a computer, causes the shared resource allocation method described in the first aspect or any possible design of the first aspect to be executed, or as The shared resource allocation method described in the fourth aspect or any possible design of the fourth aspect is executed, or the shared resource allocation method described in the seventh aspect or any possible design of the seventh aspect is executed, or as The shared resource allocation method described in the tenth aspect or any possible design of the tenth aspect is executed.

Among them, the technical effects brought by any one of the design methods in the thirteenth to seventeenth aspects can be referred to the technical effects brought by any possible design of the above-mentioned first aspect, or the technical effects brought by the above-mentioned fourth aspect. The technical effects brought by any possible design, or the technical effects brought by any possible design in the seventh aspect above, or the technical effects brought by any possible design in the tenth aspect above technical effects.

In an eighteenth aspect, a communication system is provided. The communication system includes the communication device as described in any one of the second to third aspects, or the communication device as described in any one of the fifth to sixth aspects. The communication device, the communication device as described in any one of the eighth to ninth aspects, and the communication device as described in any one of the eleventh to twelfth aspects.

Description of drawings

Figure 1 is a schematic diagram of the composition of a resource pool provided by an embodiment of the present application;

Figure 2 is a schematic diagram of resource selection provided by an embodiment of the present application;

Figure 3 is a schematic diagram of resource selection provided by an embodiment of the present application;

Figure 4 is a schematic diagram of a candidate resource provided by an embodiment of the present application;

Figure 5 is a schematic diagram of an interleaved RB provided by an embodiment of the present application;

Figure 6 is a schematic diagram of an LBT provided by an embodiment of the present application;

Figure 7 is a schematic diagram of COT sharing provided by the embodiment of the present application;

Figure 8 is a schematic diagram of COT sharing provided by the embodiment of the present application;

Figure 9 is a schematic diagram of a communication system provided by an embodiment of the present application;

Figure 10 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

Figure 11 is a flow chart of a shared resource allocation method provided by an embodiment of the present application;

Figure 12 is a schematic diagram of COT sharing provided by the embodiment of the present application;

Figure 13 is a schematic diagram of COT sharing provided by the embodiment of the present application;

Figure 14 is a schematic diagram of COT sharing provided by the embodiment of the present application;

Figure 15 is a schematic diagram of COT sharing provided by the embodiment of the present application;

Figure 16 is a schematic diagram of COT sharing provided by the embodiment of the present application;

Figure 17 is a flow chart of a shared resource allocation method provided by an embodiment of the present application;

Figure 18 is a schematic diagram of COT sharing provided by the embodiment of the present application;

Figure 19 is a schematic diagram of COT sharing provided by the embodiment of the present application;

Figure 20 is a schematic diagram of COT sharing provided by the embodiment of the present application;

Figure 21 is a schematic diagram of COT sharing provided by the embodiment of the present application;

Figure 22 is a schematic diagram of the composition of a terminal device provided by an embodiment of the present application.

Detailed ways

Device-to-device (D2D) technology: With the development of wireless communication technology, the demand for high data rates and user experience is growing, as is the demand for proximity services that understand and communicate with surrounding people or things. gradually increase Plus, D2D technology came into being. D2D technology allows multiple D2D-enabled terminal devices to conduct direct discovery and direct communication with or without network infrastructure.

The application of D2D technology can reduce the burden on cellular networks, reduce battery power consumption of user equipment, increase data rates, and can well meet the needs of proximity services. In view of the characteristics and advantages of D2D technology, Internet of Vehicles application scenarios based on D2D technology have been proposed. However, due to security considerations, Internet of Vehicles application scenarios have very high latency requirements, and D2D technology cannot meet the latency of Internet of Vehicles application scenarios. need.

Based on this, under the network of long term evolution (LTE) technology proposed by the 3rd generation partnership project (3GPP), the vehicle-to-everything (V2X) communication Internet of Vehicles technology was proposed.

V2X communication: refers to the communication between vehicles and anything in the outside world, including vehicle-to-vehicle communication (V2V), vehicle-to-pedestrian communication (V2P), and vehicle-to-infrastructure communication (vehicle to infrastructure). , V2I), vehicle to network communication (vehicle to network, V2N).

V2X communication is aimed at high-speed equipment represented by vehicles. It is the basic technology and key technology applied in scenarios with very high communication delay requirements in the future, such as smart cars, autonomous driving, intelligent transportation systems and other scenarios. LTE V2X communication can support communication scenarios with and without network coverage, and its resource allocation method can adopt the network access equipment scheduling mode, such as the Evolved Universal Terrestrial Radio Access Network Node B (E-UTRAN node B, eNB) scheduling mode and terminal device customization mode. Based on V2X technology, the vehicle user (vehicle UE, referred to as V-UE) can trigger some of its own information, such as position, speed, intention (turning, merging, reversing) periodically as well as some non-periodic events. Information is sent to surrounding V-UEs, and V-UEs will also receive information from surrounding users in real time. The 3GPP standards organization officially released the first-generation LTE V2X standard in early 2017, with the LTE version number being Release 14.

LTE V2X solves some basic needs in V2X scenarios, but for future application scenarios such as fully intelligent driving and autonomous driving, LTE V2X cannot yet effectively support it. With the development of the fifth generation (5th generation, 5G) mobile communication technology new radio (NR) technology in the 3GPP standards organization, 5G NR V2X will also further develop, such as supporting lower transmission delays and more Reliable communication transmission, higher throughput, and better user experience to meet the needs of a wider range of application scenarios. Therefore, NR V2X proposes to support 99.99% or even 99.999% reliable transmission. For the above different business needs, LTE V2X can no longer meet the business needs. NR V2X is required to support different business needs by supporting unicast, multicast, broadcast and other business forms.

Sidelink (SL) resource pool: It can include several continuous sub-channels in the frequency domain, and the unit in the time domain can be an SL slot. Each sub-channel can contain an equal number of physical resource blocks (PRBs), and the specific value can be configured on the resource pool by the higher layer. An SL slot can be located in a slot in the time domain, occupying multiple consecutive symbols, the start symbol position of the SL slot and the number of occupied continuous symbols (SL symbols length) All are configured by senior management. All SL slots in a resource pool have the same starting position in the time domain and the same number of continuous symbols in the time domain. SL physical channels that can be transmitted on SL time slots include: physical sidelink shared channel (PSSCH), physical sidelink broadcast channel (PSBCH), and physical sidelink control channel (physical sidelink control) channel, PSCCH) and sidelink physical feedback channel (physical side link feedback channel, PSFCH).

PSSCH: used to carry data information and second control information. Among them, the data information is terminal device-to-terminal device service information. The second control information is mainly used to carry other control information other than the PSSCH demodulation reference signal (DMRS). Specifically, it may include: channel state information (channel state information, CSI) reports trigger information, PSSCH destination user ID, PSSCH hybrid automatic repeat request (HARQ) process number, new data indicator (new data indicator), HARQ transmission version number and other information. Depending on the type of service information, the format of the second control information is different. When the PSSCH is transmitted, it needs to be transmitted together with its corresponding PSCCH.

PSCCH: used to carry control information. The control information can be called the first control information. It carries physical layer resource information including sidelink data channel, DMRS configuration information, DMRS port number, coded modulation signal (modulation and code signal, MCS), and resource reservation information. The resource reservation information is used to indicate the interval between the resource time domain position used by the future terminal equipment to send PSSCH/PSCCH and the current timeslot where PSSCH/PSCCH is located. There are two forms of expression. It also exists in the first control information, including periodicity. Resource reservation is used for the initial transmission of other transport blocks (TB) and the retransmission resource information of the current PSSCH/PSCCH. Other terminal devices can determine the usage in the resource selection window based on the resource reservation information in the correctly received first control information in the resource listening window, such as whether a candidate resource in the resource selection window has been reserved by other terminal devices. The allocation method based on resource reservation can improve the reliability of resource use in distributed systems and reduce collisions.

Based on the above description of PSSCH and PSCCH, the second control information format may be indicated through the format information of the second control information. The format of the second control information may be: 2-A or 2-B. 2-B is used for SL multicast 2 (this multicast can be multicast based on a certain geographical range). 2-A can be used for unicast, broadcast and multicast 1 or multicast 2. Further, 2-A can carry service (transmission) type indicator information (cast type indicator). As shown in Table 1 below, multicast 1 can be a multicast that supports NACK only type automatic feedback retransmission mechanism (HARQ). , that is, '11' in Table 1 below, which means that when the multicast user supports HARQ feedback, the receiving user only feeds back HARQ information when the PSSCH is not decoded correctly. In other scenarios, HARQ information is not fed back. Multicast 2 (i.e., '01' shown in Table 1 below) is similar to unicast (i.e., '10' shown in Table 1 below). The receiving user performs feedback decoding for each PSSCH that supports HARQ feedback. Correct information (ACK) and decoding error information (NACK) are also fed back.

Table 1

In a resource pool, the number of resources occupied by PSCCH is fixed, and the number of control information bits carried by the first control information is fixed, so there is no need to perform blind detection of the PSCCH format. PSCCH is restricted to be transmitted within a sub-channel, its time domain occupies 2 to 3 symbols, and the frequency domain bandwidth is less than or equal to one sub-channel bandwidth. Specifically, the number of PRBs in the PSCCH frequency domain bandwidth is configured by the resource pool, and its frequency domain starting position is aligned with the minimum PRB index position of the subchannel. Since the minimum frequency domain granularity of frequency domain resources occupied by PSSCH transmission is one sub-channel, it is possible to send an independent PSSCH on each sub-channel, that is, there may be a PSCCH on each sub-channel, and the receiving user needs to Blindly detects the presence or absence of PSCCH on the channel.

As an example, as shown in Figure 1, a resource pool is configured with 4 sub-channels, and the configured PSCCH bandwidth is the same as the sub-channel bandwidth. Since PSSCH/PSCCH may be sent on each sub-channel, the receiving user needs to indivual Check whether there is a PSCCH on the sub-channel. Assume that UE-A occupies subchannels 0 and 1 to send PSSCH/PSCCH, UE-B occupies subchannel 2 to send PSSCH/PSCCH, subchannel 3 is idle, and no information is sent. That is to say, in fact, only sub-channel 0 and sub-channel 2 have PSCCH sent, and there is no PSCCH information on other sub-channels. After the receiving user detects the PSCCH on sub-channel 0 and sub-channel 2, it can detect the PSCCH according to the first control information carried on it. Indicate the information, decode the PSSCH, thereby obtain the content of the second control information, and further decode the data carried on the PSSCH.

Resource allocation mode: There are two transmission modes for SL resource allocation in NR V2X, one is the resource allocation mode for network equipment (mode-1), and the other is the user-selected resource mode (mode-2).

Network device resource allocation mode (mode-1) is mainly used for V2X communications under network coverage. Network devices uniformly allocate resources based on the buffer state report (BSR) report of the terminal device. The allocation of resources can be in dynamic mode or preconfigured mode. The resources allocated by the network device include initial resources and/or retransmission resources.

In the user-selected resource mode (mode-2), the transmission resources of the sending terminal device do not depend on the network device, and the terminal device can select the transmission resources for communication. This mode is not limited to network coverage. In the absence of network coverage, the sending terminal device can also use this mode to communicate. User-selected resources include initial resources and/or retransmission resources.

SL supports resource reservation, that is, the information sent in a certain first control information (such as sidelink control information (SCI)) includes resource reservation information for a period of time in the future. After other users receive the reservation information of the SCI, they can avoid resource collision by excluding the reservation resources. Among them, SCI contains resource reservation information, data priority information sent by PSSCH this time, source address ID and destination address ID sent by PSSCH this time. This is the basis for mode-2 resource exclusion. At the same time, the protocol standardizes the resource listening window and resource selection window. That is, in mode-2 mode, the sending terminal device selects transmission resources for communication in the resource selection window based on the results of its own resource listening in the listening window. At this time, the sending terminal device can also be called a listening terminal device.

For example, as shown in Figure 2, the time slot set of the SL resource pool includes For example, assuming that the listening terminal device triggers resource selection in time slot n, the listening terminal device can continue to listen to all the time slots belonging to the SL resource pool in the window except the time slots in which the listening terminal device itself has transmitted. In addition, for all remaining time slots, resources that have been reserved by other terminal devices are excluded from the resource selection window based on the listening results. The specific resource exclusion process may include:

Step 1. As shown in Figure 3, define the resource selection window as the time slot corresponding to [n+T ₁ , n+T ₂ ] after the resource selection trigger.

Assume that the number of subchannels included in the frequency domain resources of the SL resource pool is N _subCH , and the corresponding subchannel set is A candidate resource R _x,y is defined as a time slot belonging to the SL resource pool located within the resource selection window [n+T ₁ , n+T ₂ ] in the time domain. The set of subchannels located in subchannel (x+j) in the frequency domain, where j=0,...,L _subCH -1, that is, it is embodied in the frequency domain as a set of continuous subchannels with a length equal to L _subCH , L _subCH is the number of subchannels occupied by the PSSCH and PSCCH corresponding to the data to be transmitted, so the total number of candidate resources on each time slot is N _subCH -L _subCH +1.

Any set of continuous subchannels with a length equal to L _subCH that meets the above conditions is considered to be a candidate resource R _{x, y} , and the number of all candidate resources in the SL resource pool is M _total ; where The specific value of T ₁ is determined by the terminal equipment itself based on its capabilities, on the basis of meeting the requirements of the above formula. The value of can be determined according to the sub-carrier spacing (SCS) corresponding to the SL partial bandwidth (bandwidth part, BWP). T ₂ is determined by the terminal device itself, which is smaller than the packet delay budget (PDB) of the data packet to be sent. required value.

For example, as shown in Figure 4, assuming that the maximum number of subchannels N _subCH in the frequency domain resource pool is 8, the corresponding subchannel set is S={S ₀ , S ₁ ,..., S ₇ }, and the data to be transmitted is The number of subchannels occupied by the corresponding PSSCH, L _subCH, is 2, and the total number of candidate resources on each time slot is N _subCH -L _subCH +1=7.

Step 2. As shown in Figure 3, define the resource listening window as

Among them, T ₀ is configured by the high-level parameter t0_SensingWindow, It can be determined based on the SCS corresponding to SL BWP).

Step 3: Define the threshold Th _{prioTX and prioRX} as a function of the priority corresponding to the data indicated in the received SCI and the priority corresponding to the data to be sent by the sending terminal device. When the energy detection value corresponding to the listening resource is greater than Th _{prionTX, prioRX} , the reservation resource corresponding to the resource needs to be excluded.

Step 4. Define the set including all M _total candidate resources as S _A .

Step 5. If the candidate resource R _{x, y} meets the following conditions at the same time, the candidate resource R _{x, y} should be excluded from the set S _A :

Condition 1: The terminal device does not have a listening time slot That is, the terminal device itself is in the time slot Transferred.

Condition 2: There is an integer j satisfying y+j×P′ _{rsvp_TX} =m+q×P′ _{rsvp_RX} .

Among them, y can be any time slot in the resource selection window. j=0,1,…,C _resel -1, C _resel represents the number of service resource cycles to be reserved with the cycle P′ _{rsvp_TX} configured by the upper layer. P′ _{rsvp_TX} is the physical cycle of the sending terminal device the corresponding logic cycle. m can be the unlistened time slot of the listening window. q=1,2,…,Q. P′ _{rsvp_RX} is all physical periods indicated by the high-level parameter sl-ResourceReservePeriodList the corresponding logic cycle.

Step 6. If the candidate resource R _{x, y} meets the following conditions at the same time, the candidate resource R _{x, y} should be excluded from the set S _A :

Condition 1: The terminal device is in the time slot SCI is received, and P _{rsvp_RX} (when the field "Resource reservation period" exists) and prio _RX are decoded, where P _{rsvp_RX} and prio _RX are the physical cycle and priority of the PSSCH corresponding to the SCI.

Condition 2: The reference signal received power (RSRP) measurement result of the PSSCH or PSCCH determined by the SCI is higher than the threshold Th _{prioTX, prioRX} .

Among them, the thresholds Th _{prioTX and prioRX} are functions of the priority corresponding to the data indicated in the received SCI and the priority corresponding to the data to be sent by the sending terminal device.

Condition three: by time slot The time-frequency resource determined by the received SCI and when the field "Resource reservation period" exists, it is expected to be in The time-frequency resources and candidate resources determined by the SCI received in the time slot coincide.

Step 7. If the remaining candidate resources in the candidate resource set S _A are less than X% of M _total , increase the preset RSRP thresholds Th _{prioTX and prioRX} by 3dB, and repeat steps 1 to 4. The configuration of X% can be Choose from 20, 35, 50.

Step 8: The listening terminal device reports the candidate resource set S _A to the higher level, and the upper level completes the final resource selection from the set S _A.

Listen before talk (LBT) access method: including energy-based detection access method and signal type-based detection access method. For example, the NR in unlicensed spectrum (NR-U) communication system uses an energy-based detection access method, and the wireless fidelity (wireless fidelity, WiFi) communication system uses a detection method based on a combination of the two. Access method.

Among them, the access method based on energy detection needs to set an energy detection threshold (energy detection threshold). When the detected energy exceeds the energy detection threshold, it is determined that the channel is in a busy state and access to the channel is not allowed; when the detected energy is low At the energy detection threshold, if it continues for more than a period of time, access to the channel is allowed.

According to national and regional regulatory requirements for the use of unlicensed frequency bands, taking the 5GHz frequency band as an example, accessing a 20MHz channel requires meeting at least the minimum occupied channel bandwidth (OCB) requirement before the channel can be occupied. Generally, the minimum OCB requires at least 80% of normal bandwidth. For example, taking 20MHz as an example, at least 16MHz of bandwidth is required to seize the 20MHz channel.

In addition, the 3GPP NR-U system introduces the concept of interlaced resource block (interlaced RB), defining interlace m∈{0,1,…,M-1} to include multiple {m,M+m,2M+m, 3M+m,…} RBs, the value of M is related to the subcarrier spacing.

For example, when the subcarrier spacing is 30KHz, M=5. When the subcarrier spacing is 15KHz, as shown in Figure 5, M=10, each can use the 10th PRB.

Based on the above description of LBT access methods, LBT access methods can be divided into the following four categories:

Category 1 LBT (Category 1 LBT, Cat 1 LBT): sent immediately after a short switching gap. It is used for communication equipment (such as network equipment and terminal equipment) to send immediately after the conversion interval from receiving state to sending state in channel occupancy time (COT). Among them, COT refers to the time that communication equipment is allowed to occupy the channel after successfully accessing the channel; the conversion interval cannot be greater than 16us.

Category 2 LBT (Category 2 LBT, Cat 2 LBT): LBT without random backoff. It is used for communication equipment to transmit without performing random backoff after detecting that the channel is idle for a certain period of time.

Category 3 LBT (Category 3 LBT, Cat 3 LBT): LBT with random backoff with a fixed-size contention window. The communication device generates a random number N based on a fixed-size competition window, and can send the random number N after detecting that the channel is in an idle state for a period of time determined by the random number N. Among them, the size of the competition window is related to the minimum and maximum values of N.

Category 4 LBT (Category 4 LBT, Cat 4 LBT): LBT with random backoff with variable size contention window. The communication device generates a random number N based on a variable-sized competition window, and can send the random number N after detecting that the channel is in an idle state for a period of time determined by the random number N. The size of the contention window is related to the minimum value and the maximum value of N, and the communication device can change the size of the contention window.

NR-U communication equipment follows the 3GPP protocol and can use the LBT access method as the channel access method. Specifically, NR-U communication equipment can use the following types of LBT:

Type 1 LBT: The above-mentioned Cat 4 LBT. NR-U communication equipment needs to perform random backoff before it can access the channel and send data.

Exemplarily, the communication device may listen to the channel for the first time after it is idle for a period of extended duration (defer sensing, T _d ) of the sensing slot duration, and after the counter N in step 4 below becomes zero. , initiate transmission. For example, the counter N can be adjusted by listening to the channel to obtain additional listening slot periods (T _sl ) according to the following steps 1 to 6:

Step 1. Set N=N _init , where N _init is a random number uniformly distributed between 0 and CW _p , and perform step 4.

Step 2. If N>0, the communication device selects a down counter, that is, sets N=N-1.

Step 3: Listen to the channel to obtain the additional listening time slot period T _sl . If the channel for the additional listening time slot period T _sl is idle, go to step 4; otherwise, go to step 5.

Step 4. If N=0, stop; otherwise, perform step 2;

Step 5: Listen to the channel until the channel is busy in another T _d or all listening time slots in another T _d are detected as the channel is idle.

Step 6. If the listening time slots in another T _d are all detected as channels being idle, proceed to step 4; otherwise, proceed to step 5.

Among them, CW _min,p ≤CW _p ≤CW _max,p is the competition window. T _d may include a duration T _f =16us, followed by m _p consecutive listening slot periods (i.e., T _sl ), where T _f includes an idle listening slot at its beginning Period T _sl .

For example, as shown in Figure 6, taking N as 10 as an example, the communication device can determine whether N is 0 after the first listening channel is idle during the listening time slot period of T _d . If N is greater than 0, the communication device can choose Decrement the counter and then listen to whether the channel is idle in the next T _sl . If not, the communication device can continue to listen to the channel until it hears the channel is busy in another T _d or hears all in another T _d The listening slots are all detected as channel idle. When the communication device detects that the channel is idle during another listening time slot in T _d , the communication device can determine whether N is 0. If N is greater than 0, the communication device can choose to count down the counter, and then listen to the channel in the next T _sl . Idle. If it is idle, the communication device can determine whether N is 0. If N is equal to 0, the communication device can access the channel.

Based on the above description of steps 1 to 6, the communication device may select CW _min,p and CW _max,p before step 1. Among them, as shown in the following Table 2, CW _min,p , CW _max,p and m _p may be determined based on the channel access priority level p associated with the communication device transmission:

Table 2

Among them, the COT transmitted by the communication device on the channel does not exceed T _{m cot,p} .

Based on the above Table 2, the communication device can maintain the contention window value CW _p based on CW _min,p and CW _max,p , and adjust the value of CW _p before the above step 1: for each channel access priority level p∈{ 1,2,3,4}, set CW _p =CW _min,p . For the feedback HARQ-ACK values corresponding to the data sent by the communication device in the reference subframe k, if at least 80% are determined to be NACK, then each channel access priority level p∈{1,2,3, The CW _p value corresponding to 4} is increased to the next higher allowed value and used in step 2; otherwise, perform step 1 and reset N.

The reference subframe k is the last subframe of the communication device's latest data transmission through the channel, or can also be described as the starting subframe of the latest transmission on the channel.

Type 2A LBT: Cat 2 LBT with 25us interval. The communication device can access the channel and send data after sensing that the channel is idle for 25us.

Type 2B LBT: Cat 2 LBT with 16us interval. The communication device can access the channel and send data after sensing that the channel is idle for 16us.

Type 2C LBT: Cat 1 LBT with up to 16us spacing. The communication device does not need to listen to the channel. It can directly access the channel and send data after a conversion interval of up to 16us in the COT.

Based on the above description of LBT, when NR-U and WiFi coexist, it can be supported as a load based equipment (LBE), which can perform channel listening and contention access at any point in time without the need for Consider frame boundaries. In addition to supporting working as an LBE, it can also support working as a frame based equipment (FBE). At this time, the NR-U communication equipment only allows contention access through the channel on the frame boundary synchronized within the system. Get COT. The "frame" here means fixed frame period (FFP). The specific period value can be configured by radio resource control (RRC) signaling. The period values supported by the current protocol can be 1ms, 2ms, 2.5ms, 4ms, 5ms and 10ms can all be divided into two wireless frame durations, that is, 20ms.

Based on the above description of LBT and COT, LBT can support the COT sharing mechanism, that is, the current terminal device can share its own COT with other terminal devices, and other terminal devices can occupy the channel according to the COT shared by the current terminal device to achieve data transmission.

For example, as shown in Figure 7, assuming that terminal device 1 shares the COT it occupies with terminal device 2 and terminal device 3, terminal device 1 can share time period 1 with terminal device 2 through instruction information, which will be later than the time Time period 2 of segment 1 is shared with terminal device 3. Terminal device 1 can occupy the channel before time period 1 for data transmission. Terminal equipment 2 can occupy the channel during time period 1 to implement data transmission. Terminal equipment 3 can occupy the channel during time period 2 to implement data transmission.

For another example, as shown in FIG. 8 , taking the terminal device 1 sharing the COT occupied by itself with the terminal device 2 as an example, the terminal device 1 can share the time period 1 with the terminal device 2 through the instruction information. Terminal device 1 can occupy the channel before time period 1 for data transmission. Terminal equipment 2 can occupy the channel during time period 1 to implement data transmission. Terminal equipment 1 can also continue to occupy the channel after time period 1 for data transmission.

However, if a shared terminal device does not occupy the channel within the shared time period, it may cause the channel to be occupied by other terminal devices during the shared time period, which will result in subsequent shared terminal devices being unable to follow the shared time period. occupy the channel for a period of time, or cause the terminal equipment sharing the COT to be unable to continue to occupy the channel.

For example, as shown in Figure 7, assuming that terminal device 2 does not occupy the channel in time period 1 shared by terminal device 1, other terminal devices may occupy the channel in time period 1, which in turn causes terminal device 3 to be unable to communicate with terminal device 1. The channel is occupied during the shared time period 2.

For another example, as shown in Figure 8, assuming that terminal device 2 does not occupy the channel in time period 1 shared by terminal device 1, other terminal devices may occupy the channel in time period 1, which in turn causes terminal device 1 to be unable to continue to occupy the channel. .

In order to solve this technical problem, embodiments of the present application provide a shared resource allocation method. The method may include: the first terminal device obtains the COT, and sends the first information to the second terminal device in the COT; wherein the first information is used for Indicate the first time period. The first time period is the time period shared by the first terminal device to the second terminal device. The first time period is used for the second terminal device to send information; the first terminal device performs channel detection in the second time period. ; Wherein, the starting moment of the second time period is equal to the starting moment of the first time period, and the duration of the second time period is a preconfigured or predefined duration; when the channel detection result is less than or equal to the preset threshold, the first The terminal device sends the first data within the first time period; or, when the channel detection result is less than or equal to the preset threshold, the first terminal device sends the second information within the first time period; wherein the second information is used to indicate The third time period, the starting time of the third time period is earlier than the end time of the first time period, and the third time period is located within the COT.

In the embodiment of this application, when the first terminal device shares the first time period with the second terminal device according to the obtained COT, the first terminal device can perform channel detection in the second time period. When the channel detection result is less than or equal to When the threshold is preset, the first terminal device may determine that the second terminal device does not occupy the channel within the first time period, or the first terminal device may also determine that the second terminal device determines that the second terminal device does not occupy the channel according to the first feedback information sent by the second terminal device. The channel is not occupied in the first time period; at this time, the first terminal device can send the first data in the first time period or send the second information in the first time period to occupy the channel in the first time period, Ensure that the channel status is busy to avoid the channel being blocked by other Preemption by other terminal devices reduces the risk of channel preemption when COT is shared.

The implementation of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The shared resource allocation method provided by the embodiment of the present application can be used in any communication system. The communication system can be a 3GPP communication system, for example, a universal mobile telecommunications system (UMTS), an LTE communication system, or a 5G mobile communication system. Communication systems, NR communication systems, and V2X communication systems can also be applied to LTE and 5G hybrid networking systems, or D2D communication systems, machine to machine (M2M) communication systems, and the Internet of things. IoT), narrowband-internet of things (NB-IoT), and communication systems evolved after 5G, can also be non-3GPP communication systems such as WiFi, without restrictions.

The shared resource allocation method provided by the embodiments of this application can be applied to various communication scenarios, such as communication scenarios with network coverage and communication scenarios without network coverage.

The following uses Figure 9 as an example to describe the communication system provided by the embodiment of the present application.

Figure 9 is a schematic diagram of a communication system provided by an embodiment of the present application. As shown in Figure 9, the communication system may include network equipment and terminal equipment.

As shown in Figure 9, the terminal device may be located within the beam/cell coverage of the network device, or may be located outside the beam/cell coverage of the network device. Among them, the terminal device can communicate with the terminal device based on the side link through the PC5 interface. When the terminal device is located within the beam/cell coverage of the network device, the terminal device can also communicate with the network device through the air interface through uplink (UL) or downlink (downlink, DL). For example: the terminal device can send uplink data to the network device through the physical uplink shared channel (PUSCH) in the UL direction; the network device can send uplink data to the network device through the physical downlink shared channel (PDSCH) in the DL direction. The terminal device sends downlink data.

The terminal device in Figure 9 can be a terminal device that supports the new air interface, can access the communication system through the air interface, and initiate services such as calling and Internet access. The terminal equipment can also be called user equipment (user equipment, UE) or mobile station (mobile station, MS) or mobile terminal (mobile terminal, MT), etc. Specifically, the terminal device in Figure 9 can be a cellular phone, a mobile phone, a smart phone, a wireless data card, a personal digital assistant (PDA) computer, or a tablet computer. , wireless modem, laptop computer, machine type communication (MTC) terminal or computer with wireless transceiver function. It can also be a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in driverless driving, a wireless terminal in telemedicine, and a wireless terminal in smart grids. Terminals, wireless terminals in smart cities, wireless terminals in smart homes, vehicle-mounted terminals, handsets with wireless communication functions, wearable devices, computing devices, devices connected to wireless modems Other processing equipment, vehicles with vehicle-to-vehicle (V2V) communication capabilities, intelligent connected vehicles, drones with UAV to UAV (U2U) communication capabilities, etc. , not restricted.

Among them, the network device in Figure 9 can be any device with wireless transceiver functions. It is mainly used to implement wireless physical control functions, resource scheduling and wireless resource management, wireless access control, mobility management and other functions to provide reliable Wireless transmission protocol and data encryption protocol, etc. The network device may be a device deployed in a wireless access network to provide wireless communication functions for terminal devices.

The network device in Figure 9 may be a device that supports wired access or a device that supports wireless access. Example Specifically, the network device may be an access network (AN)/radio access network (RAN) device, which is composed of multiple AN/RAN nodes. AN/RAN nodes can be: access point (AP), base station (node B, NB), enhanced base station (enhance node B, eNB), next generation base station (NR node B, gNB), transmission and reception point (transmission reception point, TRP), transmission point (TP) or some other access node, etc., wherein the base station can include various forms of macro base stations, micro base stations, relay stations, etc., and can also be D2D, V2X, Equipment that undertakes base station functions in M2M communications can also include centralized units (CU) and distributed units (DU) in the cloud radio access network (cloud radio access network, C-RAN) system. Network equipment in non-terrestrial network (NTN) communication systems can be deployed on high-altitude platforms or satellites. The embodiments of the present application do not specifically limit this.

For example, for a UMTS/LTE communication system, the network device may be an eNB. For heterogeneous networks (Het Net), network devices can be micro base stations. For distributed base station scenarios, network equipment can include baseband processing units (base band unit, BBU) and radio frequency units (remote radio unit, RRU). For cloud radio access network (CRAN), network equipment can be a baseband pool (BBU pool) and a radio frequency unit (RRU). For future wireless communication systems, the network device may be a gNB.

In specific implementation, as shown in Figure 9, for example, each terminal device and network device can adopt the composition structure shown in Figure 10, or include the components shown in Figure 10. Figure 10 is a schematic diagram of the composition of a communication device 1000 provided by an embodiment of the present application. The communication device 1000 can be a terminal device or a chip or a system on a chip in a terminal device; it can also be a network device or a chip or a system on a chip in a network device. . As shown in FIG. 10 , the communication device 1000 includes a processor 1001 , a transceiver 1002 and a communication line 1003 .

Further, the communication device 1000 may also include a memory 1004. The processor 1001, the memory 1004 and the transceiver 1002 may be connected through a communication line 1003.

Among them, the processor 1001 is a central processing unit (CPU), a general-purpose processor, a network processor (NP), a digital signal processor (digital signal processing, DSP), a microprocessor, a microcontroller, Programmable logic device (PLD) or any combination thereof. The processor 1001 can also be other devices with processing functions, such as circuits, devices or software modules, without limitation.

Transceiver 1002, used to communicate with other devices or other communication networks. The other communication network may be Ethernet, RAN, wireless local area networks (WLAN), etc. Transceiver 1002 may be a module, a circuit, a transceiver, or any device capable of enabling communications.

The communication line 1003 is used to transmit information between components included in the communication device 1000 .

Memory 1004, used to store instructions. Wherein, the instructions may be computer programs.

Among them, the memory 1004 can be a read-only memory (ROM) or other types of static storage devices that can store static information and/or instructions, or it can be a random access memory (random access memory, RAM) or other types of static storage devices that can store static information and/or instructions. Other types of dynamic storage devices that store information and/or instructions can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD- ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, etc., are not restricted.

It should be noted that the memory 1004 may exist independently of the processor 1001 or may be integrated with the processor 1001. The memory 1004 can be used to store instructions or program codes or some data. The memory 1004 may be located within the communication device 1000 or may be located outside the communication device 1000, without limitation. Processor 1001, used to execute The instructions stored in the row memory 1004 are used to implement the shared resource allocation method provided in the following embodiments of this application.

In one example, the processor 1001 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 10 .

As an optional implementation manner, the communication device 1000 includes multiple processors. For example, in addition to the processor 1001 in Figure 10, it may also include a processor 1007.

As an optional implementation manner, the communication device 1000 also includes an output device 1005 and an input device 1006. For example, the input device 1006 is a touch screen, a keyboard, a mouse, a microphone or a joystick, and the output device 1005 is a display screen, a speaker, or other devices.

It should be noted that the communication device 1000 may be a desktop computer, a portable computer, a network server, a mobile phone, a tablet computer, a wireless terminal, an embedded device, a chip system, or a device with a similar structure as shown in FIG. 10 . In addition, the composition structure shown in FIG. 10 does not constitute a limitation of the communication device. In addition to the components shown in FIG. 10 , the communication device may include more or less components than shown in the figure, or some components may be combined. , or a different component arrangement.

In the embodiments of this application, the chip system may be composed of chips, or may include chips and other discrete devices.

In addition, actions, terms, etc. involved in various embodiments of this application can be referred to each other and are not limited. In the embodiments of this application, the name of the message exchanged between the various devices or the name of the parameters in the message is just an example, and other names may also be used in the specific implementation without limitation.

The shared resource allocation method provided by the embodiment of the present application will be described below with reference to the communication system shown in Figure 9 and Figure 11 below. The first terminal device can be any terminal device in the communication system shown in Figure 9. The second terminal device can also be any terminal device in the communication system shown in Figure 9, and the third terminal device can also be any terminal device in the communication system shown in Figure 9. The first terminal device, the second terminal device, and the third terminal device described in the following embodiments may all be equipped with the components shown in FIG. 10 . The processing performed by a single execution subject (terminal device or network device) shown in the embodiments of this application can also be divided into multiple execution subjects for execution. These execution subjects can be logically and/or physically separated. be restricted.

Figure 11 is a flow chart of a shared resource allocation method provided by an embodiment of the present application. As shown in Figure 11, the method may include:

Step 1101. The first terminal device obtains the COT.

Among them, the first terminal device can detect whether the channel is idle through LBT, and if the channel is idle, it can occupy the channel to send information within the COT.

For example, the first terminal device can occupy the channel after performing random backoff through Type 1 LBT, thereby sending information within the COT.

Among them, the description of the first terminal device obtaining COT through Type 1 LBT can refer to the above-mentioned related description of Type 1 LBT, and will not be described again.

Step 1102: The first terminal device sends the first information to the second terminal device in the COT.

Specifically, LBT can support a COT sharing mechanism. The first terminal device can share the obtained COT with other terminal devices, and other terminal devices can occupy the channel in the COT shared by the first terminal device to send information.

The first terminal device may also be described as a shared terminal device, or as a terminal device sharing a COT, and the other terminal devices may also be described as terminal devices to be shared, or as shared terminal devices, or as The target shared terminal device is not restricted.

Optionally, the first terminal device determines the terminal device to be shared according to a preconfigured method or a request method of the initialization period.

For example, taking the terminal device to be shared as a second terminal device, the first terminal device can be configured, such as configuring the first terminal device to: share the COT with the second terminal device (or as described, share the COT with the second terminal device). to the second terminal device).

In another example, the first terminal device may determine the terminal device to be shared based on the priority. The priority may be the data priority of the terminal device to be shared. The priority may be carried in the SCI.

Optionally, the first terminal device determines the time period during which the terminal device to be shared needs to send information based on the SCI sent by the terminal device to be shared, and shares the COT according to the time period.

For example, assuming that the terminal device to be shared is a second terminal device, the second terminal device may send an SCI to the first terminal device, and the SCI may indicate a time period during which the second terminal device needs to send information. The first terminal device shares the COT with the second terminal device according to the time period indicated by the SCI sent by the second terminal device.

Based on the above description, when the first terminal device shares the COT with the terminal device to be shared based on the SCI sent by the terminal device to be shared, the first terminal device may send the first information to the terminal device to be shared.

The first information may be used to indicate a time period for the first terminal device to be shared with the terminal device to be shared, and the terminal device to be shared may send information within the time period.

It should be noted that the time period for the first terminal device to be shared with the terminal device to be shared may be less than or equal to the time period for the terminal device to be shared to send information. Wherein, the starting time of the time period in which the first terminal device is shared with the terminal device to be shared may be later than the starting time of the time period in which the terminal device to be shared needs to send information. The first terminal device is shared with the terminal device to be shared. The end time of the time period may be earlier than the end time of the time period in which the terminal device to be shared needs to send information.

Among them, the first terminal device can determine the service cycle, service arrival time, service duration and latest transmission time of the service and other service information of the terminal device to be shared based on the SCI sent by the terminal device to be shared, and then determine the service information of the terminal device to be shared according to the terminal device to be shared. business information to determine the time period to be shared with the terminal device to be shared.

For example, assuming that the terminal device to be shared is a second terminal device, the first terminal device may send the first information to the second terminal device. The first information may be used to indicate a first time period, the first time period may be a time period shared by the first terminal device with the second terminal device, and the first time period is used for the second terminal device to send information.

Wherein, the first terminal device can determine the service information of the second terminal device according to the SCI sent by the second terminal device, and determine the first time period based on the service information. The starting time of the first time period cannot be earlier than the second terminal device. The service arrival time and the end time of the first time period cannot be later than the service end time of the second terminal device.

Optionally, the first information includes identification information of the terminal device to be shared, starting time information of a time period shared by the first terminal device to the terminal device to be shared, and duration information of the time period.

The starting time information may be the absolute value of the starting time, for example, the starting time is a specific time. The starting time information can also be a relative value of the starting time. For example, the starting time information is the change value of the starting time relative to a certain time.

For example, the certain time may be the starting time of the COT of the first terminal device, the sending time of the first information, or the receiving time of the first information, without limitation.

The terminal device to be shared can determine the starting time of the time period shared by the first terminal device to itself based on the starting time information, and further determine the time period based on the duration information of the time period.

Illustratively, as shown in Figure 12, taking the first terminal device sending the first information to the second terminal device as an example, the first information may include the identification information of the second terminal device, the starting time of the first time period, the The duration of a period of time. in, The starting moment of the first time period can be a specific moment value, or it can be a change value relative to a certain moment.

Optionally, the first information is COT sharing indication information, and the first terminal device may send the COT sharing indication information through PSSCH or PSCCH.

It should be noted that the above description of the first information takes the first terminal device sharing the COT with the second terminal device as an example. When the first terminal device shares the COT with multiple terminal devices, the first terminal device may share the COT with the multiple terminal devices. A terminal device sends the first information.

For example, taking the first terminal device sharing COT with the second terminal device and the third terminal device, as shown in Figure 12, the first terminal device can send the first information to the second terminal device and the third terminal device, The first information may be used to indicate a first time period and a fifth time period, wherein the first time period may be a time period shared by the first terminal device with the second terminal device, and the first time period may be used by the second terminal device. To send information, the fifth time period may be a time period shared by the first terminal device with the third terminal device, and the fifth time period is used for the third terminal device to send information.

The first information may include identification information of the second terminal device, starting time information of the first time period, duration information of the first time period, identification information of the third terminal device, and starting time information of the fifth time period. , the duration information of the fifth time period.

Based on the above description of the first terminal device sending the first information to the terminal device to be shared, after the terminal device to be shared receives the first information, it can determine the time period shared by the first terminal device to itself based on the first information. The terminal device to be shared can detect whether the channel is idle through LBT before the time period. If the channel is idle, it will occupy the channel and then send information within the time period. If the channel is busy, it will not occupy the channel.

Illustratively, as shown in Figure 12, assuming that the terminal devices to be shared are the second terminal device and the third terminal device, the second terminal device can listen to the channel before the first time period through Type 2A LBT. The channel can be occupied if it is idle for 25us, and then the information can be sent in the first time period; the second terminal device can also use Type 2B LBT to occupy the channel if it detects that the channel is idle for 16us before the first time period, and then can occupy the channel in the first time period. Send information within the time period; the second terminal device can also use Type 2C LBT to directly occupy the channel after a conversion interval of up to 16us before the first time period, and then send information within the first time period. In the same way, the third terminal device can use Type 2A LBT. Before the fifth time period, it can occupy the channel if it detects that the channel is idle for 25us, and then send information in the fifth time period; the third terminal device can also use Type 2B LBT, before the fifth time period, the channel can be occupied after listening to the channel idle for 16us, and then send information in the fifth time period; the third terminal device can also use Type 2C LBT, before the fifth time period, after up to After the 16us conversion interval, the channel can be directly occupied and the information can be sent in the fifth time period.

Step 1103: The first terminal device performs channel detection in the second time period.

As shown in Figure 13, the starting time of the second time period may be equal to the starting time of the first time period, and the duration of the second time period may be a preconfigured or predefined duration.

For example, the duration of the second time period may be the sensing slot duration, and the duration of the second time period may be greater than or equal to 9 microseconds.

For example, the duration of the second time period may be multiples of 9 such as 9us, 18us, 27us, etc.

The first terminal device may perform channel detection within the second time period and determine whether the channel detection result is less than or equal to the preset threshold. When the channel detection result is greater than the preset threshold, the first terminal device may consider that the second terminal device occupies the channel within the first time period. When the channel detection result is less than or equal to the preset threshold, the first terminal device may consider that the second terminal does not occupy the channel during the first time period, and the first terminal device may perform the following step 1104a or step 1104b, By occupying the channel in the first period of time, the status of the channel is guaranteed to be busy, thereby preventing the channel from being preempted by other terminal equipment, reducing the risk of channel preemption during COT sharing, and ensuring that subsequent shared terminal equipment (such as third terminal equipment) The channel may be occupied according to the shared time period, or it may be ensured that the first terminal device can continue to occupy the channel after the first time period.

For example, the first terminal device may perform channel detection based on RSRP, and determine whether the detected RSRP is less than or equal to a preset threshold, that is, the channel detection result is RSRP. If the detected RSRP is less than or equal to the preset threshold, the first terminal device may perform the following step 1104a or step 1104b.

Among them, the unit of RSRP can be dBm.

It should be noted that in the following step 1104a or step 1104b, the first terminal device may send the first data or the second information within the first time period. Since the first time period is within the COT obtained by the first terminal device, the first terminal device may send the first data or the second information within the first time period. When a terminal device sends first data or second information to occupy the channel within the first time period, the first terminal device can directly send the first data or second information through the channel to keep the channel busy without performing LBT.

Step 1104a: When the channel detection result is less than or equal to the preset threshold, the first terminal device sends the first data within the first time period.

The first data may include one or more of the following: all-zero data, repeated data; where the repeated data may be data sent by the first terminal device within the COT.

The first terminal device may send all-zero data in the first time period to occupy the channel, may also send repeated data in the first time period to occupy the channel, or may send all-zero data and repeated data in the first time period to occupy the channel. Channels are not restricted.

For example, as shown in Figure 14, taking the first terminal device sharing COT with the second terminal device and the third terminal device as an example, for the first time period, the first terminal device can determine the channel detection result in the second time period. When it is less than or equal to the preset threshold, the first data is sent in the first time period to occupy the channel, thereby ensuring that the third terminal device can occupy the channel in the fifth time period and then send information.

It should be noted that, for the first time period, when the first terminal device determines that the channel detection result is less than or equal to the preset threshold, it may start sending the first data until the end of the first time period. That is, the starting moment when the first terminal device sends the first data in the first time period may be the moment when the first terminal device determines that the channel detection result is less than or equal to the preset threshold, and the first terminal device sends the first data in the first time period. The end time of a piece of data may be the end time of the first time period.

Step 1104b: When the channel detection result is less than or equal to the preset threshold, the first terminal device sends the second information.

When the first terminal device determines that the channel detection result is less than or equal to the preset threshold in the second time period, the first terminal device may consider that the second terminal device does not occupy the first time period. If the first terminal device after the first time period The COT is also shared with other terminal devices. The first terminal device can advance the time period shared with the next terminal device. The start time of the advanced time period can be earlier than the end time of the first time period.

Optionally, the second information is sent within the first time period.

Optionally, the first terminal device indicates the advance time period to the next terminal device through the second information.

For example, as shown in Figure 15, taking the first terminal device sharing COT with the second terminal device and the third terminal device as an example, when the first terminal device determines that the second terminal device does not occupy the channel within the first time period , the first terminal device may send second information to the third terminal device in the first time period, the second information may be used to indicate the third time period, and the starting moment of the third time period may be earlier than the first time period. At the end time, the third time period is located in the COT.

Wherein, the time when the first terminal device sends the second information may be later than the second time period, and the third time period is the time when the first terminal device sends the second information. The terminal device shares the time period with the third terminal device, and the third time period is used for the third terminal device to send information.

That is, when the first terminal device determines that the second terminal device does not occupy the channel within the first time period, the time period shared by the first terminal device with the third terminal device can be advanced from the original fifth time period to the third time period. Three time periods. The third terminal device can perform LBT before the third time period, and occupy the channel in the third time period after detecting that the channel is idle, thereby reducing the risk of channel preemption during COT sharing and ensuring that the third terminal device can perform LBT according to the shared time. segment occupies the channel.

Optionally, the second information includes identification information of the third terminal device, starting time information of the third time period, and duration information of the third time period.

The description of the second information may refer to the above-mentioned related description of the first information, and will not be described again.

Based on the above description of the second information and the third time period, within the first time period, the first terminal device can perform channel detection and determine whether the channel detection result is less than or equal to the preset threshold. When the channel detection result is less than or equal to the preset threshold, When the threshold is set, the first terminal device can advance the fifth time period shared with the third terminal device to become the third time period, and send the second information indicating the third time period to the third terminal device. , the third terminal device performs LBT according to the second information, and occupies the channel within the third time after detecting that the channel is idle.

That is, the first time period may include a time period when the first terminal device performs channel detection (ie, the above-mentioned second time period), a time period when the first terminal device sends the second information, a time period when the third terminal device performs LBT, and a third time period. The three terminal devices occupy part of the time period of the channel (that is, the time period between the start time of the third time period and the end time of the first time period).

It should be noted that the starting time of the third time period cannot be earlier than the service arrival time of the third terminal device. If the duration between the sending moment of the second information and the starting moment of the third time period is greater than or equal to the preset duration, the first terminal device may send the first data within the duration to occupy the channel.

The first terminal device can determine the service information of the third terminal device such as service cycle, service arrival time, service duration, and latest service transmission time according to the SCI sent by the third terminal device.

Optionally, the preset duration can be predefined or preconfigured.

For example, the preset duration can be 25us or 16us.

When the third terminal device uses Type 2A LBT to occupy the channel, the preset time can be 25us. When the third terminal device uses Type 2B LBT or Type 2C LBT to occupy the channel, the preset time can be 16us.

For example, as shown in Figure 16, if the duration between the sending moment of the second information and the starting moment of the third time period is greater than or equal to the preset duration, the first terminal device may send the second information between the sending moment and the starting moment of the third time period. The first data is sent between the starting moments of the third time period to occupy the channel and ensure that the channel status is busy, thereby avoiding the channel being preempted by other terminal devices and reducing the risk of the channel being preempted when COT is shared, thereby ensuring that the third terminal The device can subsequently occupy the channel during the shared time period.

It should be noted that before the third terminal device occupies the channel in the third time period, it needs to determine whether the channel is idle through the LBT method. If it is idle, it will occupy the channel in the third time period. Therefore, the first terminal device sends the first data The end time may be earlier than or equal to the start time of the third time period by a preset time period.

Based on the above methods shown in Figures 11 to 16, when the first terminal device shares the first time period with the second terminal device according to the obtained COT, the first terminal device can perform channel detection in the second time period. When When the channel detection result is less than or equal to the preset threshold, the first terminal device can determine that the second terminal device does not occupy the channel within the first time period. At this time, the first terminal device can send the first data within the first time period or Send second within first time period information to occupy the channel within the first period of time to ensure that the channel status is busy, thereby preventing the channel from being preempted by other terminal devices and reducing the risk of the channel being preempted when COT is shared.

Different from the above-mentioned Figure 11, the first terminal device determines whether the second terminal device occupies the channel in the first time period based on the channel detection result. As shown in Figure 17, the first terminal device can also determine whether the second terminal device occupies the channel based on the feedback from the second terminal device. The information determines whether the second terminal device occupies the channel within the first time period.

Figure 17 is a flow chart of a shared resource allocation method provided by an embodiment of the present application. As shown in Figure 17, the method may include:

Step 1701: The first terminal device obtains the COT.

For the description of step 1701, reference may be made to the above-mentioned description of step 1101, which will not be described again.

Step 1702: The first terminal device sends the first information to the second terminal device in the COT.

Optionally, when the first terminal device not only shares the COT with the second terminal device but also shares the COT with other terminal devices (such as a third terminal device), the first terminal device may also send the first information to the third terminal device.

For the description of step 1702, reference may be made to the above-mentioned description of step 1102, which will not be described again.

Step 1703: The first terminal device receives the first feedback information from the second terminal device.

After the first terminal device sends the first information to the terminal device to be shared, the terminal device to be shared can send feedback information to the first terminal device as to whether it occupies the channel within the shared time period.

Taking the terminal device to be shared as a second terminal device as an example, the second terminal device can determine whether to occupy the channel during the first time period shared by the first terminal device. When the second terminal device determines to occupy the channel during the first time period, , the second terminal device may send first feedback information to the first terminal device for instructing the second terminal device to occupy the channel within the first time period. When the second terminal device determines that the channel is not occupied in the first time period, the second terminal device may feed back first feedback information to the first terminal device indicating that the second terminal device does not occupy the channel in the first time period.

For example, assuming that the first feedback information is 1 bit, the value of the 1 bit can be set to "1" to indicate that the second terminal device occupies the channel within the first time period. The value is set to "0" to indicate that the second terminal device does not occupy the channel during the first time period. You can also set the value of this 1 bit to "0" to indicate that the second terminal device occupies the channel during the first time period, and set the value of this 1 bit to "1" to indicate that the second terminal device The channel is not occupied during the first period of time.

Optionally, the first terminal device receives feedback information sent by the terminal device to be shared within the fourth time period.

The starting time of the fourth time period may be later than the first time, the first time may be the time when the sending time of the first information is delayed by the first delay, and the first delay may be the terminal device to be shared (such as The second terminal device) determines the delay of the feedback information (such as the first feedback information). The end time of the fourth time period may be earlier than the second time. The second time may be the start time of the first time period in advance of the second delay. The second delay may be for the first terminal device to process feedback information (such as first feedback information) delay.

For example, the first delay may be a parsing delay for a terminal device to be shared (such as a second terminal device) to parse the first information. The second delay may include a delay for the first terminal device to parse the feedback information.

Optionally, when the first terminal device determines to send the first data based on the feedback information, the second delay may also include a generation delay and a sending delay of the first data.

Optionally, the fourth time period is a preconfigured or predefined time period.

Exemplarily, as shown in Figure 18, taking the terminal device to be shared as a second terminal device, the first terminal device can receive the first feedback information sent by the second terminal device within the fourth time period. According to the first The feedback information determines the second final Whether the end device occupies the channel during the first period of time.

When the first terminal device determines that the second terminal device does not occupy the channel within the first time period based on the first feedback information, the first terminal device may perform the following step 1704a or step 1704b to occupy the channel within the first time period, Ensure that the status of the channel is busy, thereby preventing the channel from being preempted by other terminal devices, reducing the risk of channel preemption when COT is shared, and ensuring that subsequent shared terminal devices (such as third terminal devices) can occupy the channel according to the shared time period. Or it is guaranteed that the first terminal device can continue to occupy the channel after the first time period.

Optionally, when the terminal device to be shared also includes a third terminal device, as shown in Figure 18, the first terminal device may receive the second feedback information sent by the third terminal device within the fourth time period. According to the second The feedback information determines whether the third terminal device occupies the channel within the fifth time period shared by the first terminal device with the third terminal device.

Based on the above description of the fourth time period and feedback information, the terminal device to be shared can send feedback information to the first terminal device regardless of whether it occupies the channel within the shared time period, that is, the terminal device to be shared determines When the channel is occupied in the shared time period, feedback information is sent to the first terminal device to instruct the terminal device to be shared to occupy the channel in the shared time period, and when it is determined that the channel is not occupied in the shared time period , sending feedback information to the first terminal device indicating that the terminal device to be shared does not occupy the channel within the shared time period.

Alternatively, the terminal device to be shared may also send feedback information to the first terminal device when it determines that the channel is occupied within the shared time period, and does not send feedback information to the first terminal device when it determines that the channel is not occupied during the shared time period. The terminal device sends feedback information. When the first terminal device receives the feedback information sent by the terminal device to be shared in the fourth time period, it can be determined that the terminal device to be shared occupies the channel in the shared time period; when the first terminal device in the fourth time period, it can be determined that the terminal device to be shared occupies the channel. When no feedback information sent by the terminal device to be shared is received within a time period, it may be defaulted that the terminal device to be shared does not occupy the channel during the shared time period.

Alternatively, the terminal device to be shared may not send feedback information to the first terminal device when it is determined that the channel is occupied within the shared time period, and may send feedback information to the first terminal device when it is determined that the channel is not occupied during the shared time period. The terminal device sends feedback information. When the first terminal device does not receive the feedback information sent by the terminal device to be shared within the fourth time period, it may be assumed that the terminal device to be shared occupies the channel during the shared time period; when the first terminal device When the feedback information sent by the terminal device to be shared is received within four time periods, it can be determined that the terminal device to be shared does not occupy the channel during the shared time period.

Step 1704a: The first terminal device sends the first data within the first time period.

Illustratively, as shown in Figure 19, taking the first terminal device sharing COT with the second terminal device and the third terminal device as an example, when the first terminal device determines that the second terminal device is in the first time period based on the first feedback information, When the channel is not occupied within the first time period, the first terminal device can send the first data in the first time period to occupy the channel, thereby ensuring that the third terminal device can occupy the channel in the fifth time period and then send information.

For the description of the first data, reference may be made to the relevant description of the first data in the above-mentioned step 1104a, which will not be described again.

Step 1704b: The first terminal device sends the second information within the first time period.

For example, as shown in Figure 20, taking the first terminal device sharing COT with the second terminal device and the third terminal device as an example, when the first terminal device determines that the second terminal device does not occupy the channel within the first time period , the first terminal device may send second information to the third terminal device in the first time period, the second information may be used to indicate the third time period, and the starting moment of the third time period may be earlier than the first time period. At the end time, the third time period is located in the COT.

For the description of the second information, please refer to the relevant description of the second information in the above step 1104b, and will not be repeated. narrate. optional,

The description of the service arrival time and the preset duration may refer to the relevant description of the service arrival time and the preset duration in step 1104b, without limitation.

For example, as shown in Figure 21, if the time between the sending time of the second information and the starting time of the third time period is greater than or equal to the preset time length, the first terminal device can send the second information between the sending time and the start time of the third time period. The first data is sent between the starting moments of the third time period to occupy the channel and ensure that the channel status is busy, thereby avoiding the channel being preempted by other terminal devices and reducing the risk of the channel being preempted when COT is shared, thus ensuring that the third terminal The device can subsequently occupy the channel during the shared time period.

Based on the methods shown in Figures 17 to 21 above, when the first terminal device determines that the second terminal device does not occupy the channel within the first time period based on the first feedback information, the first terminal device can send The first data or the second information is used to occupy the channel within the first time period to ensure that the channel status is busy, thereby preventing the channel from being preempted by other terminal devices, reducing the risk of the channel being preempted during COT sharing, and ensuring that subsequent shared terminals The device (such as the third terminal device) can occupy the channel according to the shared time period, or ensure that the first terminal device can continue to occupy the channel after the first time period.

The above-mentioned embodiments shown in FIGS. 11 to 21 can be implemented individually or in combination with each other without limitation.

The above mainly introduces the solution provided by the embodiments of the present application from the perspective of interaction between devices. It can be understood that, in order to implement the above functions, each device includes a corresponding hardware structure and/or software module to perform each function. Those skilled in the art should readily appreciate that the algorithm steps of each example described in conjunction with the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving the hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Embodiments of the present application can divide each device into functional modules according to the above method examples. For example, each functional module can be divided into corresponding functional modules, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. In actual implementation, there may be other division methods.

In the case of dividing each functional module corresponding to each function, Figure 22 shows a terminal device 220. The terminal device 220 can perform the actions performed by the first terminal device in the above-mentioned Figures 11 to 21, or perform the above-mentioned Figures 11 to 21. The actions performed by the second terminal device in Figure 21, or the actions performed by the third terminal device in Figures 11 to 21 described above.

Among them, the terminal device 220 may include a transceiver module 2201 and a processing module 2202. For example, the terminal device 220 may be a terminal device, or may be a chip used in the terminal device or other combined devices, components, etc. with the functions of the above terminal device. When the terminal device 220 is a terminal device, the transceiver module 2201 may be a transceiver, and the transceiver may include an antenna, a radio frequency circuit, etc.; the processing module 2202 may be a processor (or, processing circuit), such as a baseband processor, in a baseband processor Can include one or more CPUs. When the terminal device 220 is a component with the above terminal device functions, the transceiver module 2201 may be a radio frequency unit; the processing module 2202 may be a processor (or, processing circuit), such as a baseband processor. When the terminal device 220 is a chip system, the transceiver module 2201 can be the input and output interface of the chip (such as a baseband chip); the processing module 2202 can be the processor (or processing circuit) of the chip system, which can include one or more central processing units. unit. It should be understood that the transceiver module 2201 in the embodiment of the present application can be implemented by a transceiver or a transceiver-related circuit component; the processing module 2202 can be implemented by a processor or a processor-related circuit component (or, referred to as a processing circuit).

For example, the transceiver module 2201 can be used to perform all transceiver operations performed by the terminal device in the embodiments shown in Figures 11 to 21, and/or to support other processes of the technology described herein; the processing module 2202 can use In performing all operations performed by the terminal device in the embodiments shown in FIGS. 11 to 21 , except for the transceiver operation, and/or other processes used to support the technology described herein.

As another implementation manner, the transceiver module 2201 in Figure 22 can be replaced by a transceiver, which can integrate the functions of the transceiver module 2201; the processing module 2202 can be replaced by a processor, which can integrate the functions of the processing module 2202. Function. Further, the terminal device 220 shown in Figure 22 may also include a memory.

Embodiments of the present application also provide a computer program product, which, when executed by a computer, can implement the functions of any of the above method embodiments.

An embodiment of the present application also provides a computer program, which when executed by a computer can implement the functions of any of the above method embodiments.

An embodiment of the present application also provides a computer-readable storage medium. All or part of the processes in the above method embodiments can be completed by instructing relevant hardware through a computer program. The program can be stored in the above computer-readable storage medium. When executed, the program can include the processes of the above method embodiments. . The computer-readable storage medium may be an internal storage unit of the terminal (including the data sending end and/or the data receiving end) of any of the foregoing embodiments, such as the hard disk or memory of the terminal. The above-mentioned computer-readable storage medium can also be an external storage device of the above-mentioned terminal, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash memory card equipped on the above-mentioned terminal. (flash card) etc. Further, the computer-readable storage medium may also include both an internal storage unit of the terminal and an external storage device. The above computer-readable storage medium is used to store the above computer program and other programs and data required by the above terminal. The above-mentioned computer-readable storage media can also be used to temporarily store data that has been output or is to be output.

It should be noted that the terms “first” and “second” in the description, claims and drawings of this application are used to distinguish different objects, rather than describing a specific sequence. Furthermore, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes Other steps or units inherent to such processes, methods, products or devices.

It should be understood that in this application, "at least one (item)" refers to one or more, "plurality" refers to two or more, and "at least two (items)" refers to two or three and three or more, "and/or" is used to describe the relationship between associated objects, indicating that there can be three relationships. For example, "A and/or B" can mean: only A exists, only There are three situations: B and both A and B. A and B can be singular or plural. The character "/" generally indicates that the related objects are in an "or" relationship. “At least one of the following” or similar expressions thereof refers to any combination of these items, including any combination of a single item (items) or a plurality of items (items). For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c" ”, where a, b, c can be single or multiple.

Through the above description of the embodiments, those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above functional modules is used as an example. In actual applications, the above functions can be allocated as needed. It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of modules or units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be The combination can either be integrated into another device, or some features can be omitted, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated. The components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place, or they may be distributed to multiple different places. . Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated units can be implemented in the form of hardware or software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application are essentially or all or part of the technical solutions can be embodied in the form of a software product. The software product is stored in a storage medium and includes a number of instructions to cause a device ( It may be a microcontroller, a chip, etc.) or a processor (processor) that executes all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

Claims

A shared resource allocation method, characterized by including:

The first terminal device obtains the channel occupancy time COT;

The first terminal device sends first information to the second terminal device within the COT; wherein the first information is used to indicate a first time period, and the first time period is shared by the first terminal device. The time period of the second terminal device, the first time period is used by the second terminal device to send information;

The first terminal device performs channel detection in the second time period; wherein the starting time of the second time period is equal to the starting time of the first time period, and the duration of the second time period is preconfigured. or a predefined duration;

When the channel detection result is less than or equal to the preset threshold, the first terminal device sends the first data within the first time period; or

When the channel detection result is less than or equal to the preset threshold, the first terminal device sends second information within the first time period; wherein the second information is used to indicate a third time period, and the third The start time of the time period is earlier than the end time of the first time period, and the third time period is located within the COT.
The method according to claim 1, characterized in that:

The first data includes one or more of the following: all-zero data, repeated data; wherein the repeated data is data sent by the first terminal device within the COT.
The method according to claim 1 or 2, characterized in that,

The third time period is a time period shared by the first terminal device with the third terminal device, and the third time period is used for the third terminal device to send information.
The method of claim 3, wherein after the first terminal device sends the second information within the first time period, the method further includes:

When the time between the sending time of the second information and the starting time of the third time period is greater than or equal to the preset time length, the first terminal device The first data is sent between the starting time of the third time period.
A shared resource allocation method, characterized by including:

The first terminal device obtains the channel occupancy time COT;

The first terminal device sends first information to the second terminal device within the COT; wherein the first information is used to indicate a first time period, and the first time period is shared by the first terminal device. The time period of the second terminal device, the first time period is used by the second terminal device to send information;

The first terminal device receives first feedback information from the second terminal device; wherein the first feedback information is used to indicate that the second terminal device does not occupy a channel within the first time period;

The first terminal device sends the first data within the first time period; or

The first terminal device sends second information within the first time period; wherein the second information is used to indicate a third time period, and the starting time of the third time period is earlier than the first time period. At the end of the time period, the third time period is located within the COT.
The method according to claim 5, characterized in that:

The first feedback information is received within a fourth time period;

Wherein, the starting time of the fourth time period is later than the first time, the first time is the time when the sending time of the first information is delayed by a first delay, and the first delay is the The second terminal device determines the first feedback information time delay;

The end time of the fourth time period is earlier than the second time, the second time is the time when the starting time of the first time period is ahead of the second time delay, and the second time delay is the first time The delay for the terminal device to process the first feedback information.
The method according to claim 6, characterized in that:

The fourth time period is a preconfigured or predefined time period.
The method according to any one of claims 5-7, characterized in that,

The first data includes one or more of the following: all-zero data, repeated data; wherein the repeated data is data sent by the first terminal device within the COT.
The method according to claim 8, characterized in that:

The third time period is a time period shared by the first terminal device with the third terminal device, and the third time period is used for the third terminal device to send information.
The method according to claim 9, characterized in that, after the first terminal device sends the second information within the first time period, the method further includes:

When the time between the sending time of the second information and the starting time of the third time period is greater than or equal to the preset time length, the first terminal device The first data is sent between the starting time of the third time period.
The method according to claim 8 or 9, characterized in that before the first terminal device receives the first feedback information from the second terminal device, the method further includes:

The first terminal device sends the first information to the third terminal device; wherein the first information also includes a fifth time period, the fifth time period is shared by the first terminal device with all The time period of the third terminal device, the fifth time period is used for the third terminal device to send information.
The method according to claim 11, characterized in that after the first terminal device sends the first information to the third terminal device, the method further includes:

The first terminal device receives second feedback information from the third terminal device, where the second feedback information is used to instruct the third terminal device to occupy the channel within the fifth time period.
The method according to claim 12, characterized in that:

The second feedback information is received within a fourth time period;

Wherein, the starting time of the fourth time period is later than the first time, the first time is the time when the sending time of the first information is delayed by a first delay, and the first delay is the The second terminal device determines the time delay of the first feedback information;

The end time of the fourth time period is earlier than the second time, the second time is the time when the starting time of the first time period is ahead of the second time delay, and the second time delay is the first time The delay for the terminal device to process the first feedback information.
The method according to any one of claims 11-13, characterized in that,

The starting time of the fifth time period is later than the starting time of the third time period.
A shared resource allocation method, characterized by including:

The second terminal device receives the first information from the first terminal device; wherein the first information is used to indicate a first time period, and the first time period is shared by the first terminal device with the second terminal The time period of the device, the first time period is used for the second terminal device to send information;

The second terminal device sends first feedback information to the first terminal device; wherein the first feedback information Used to instruct the second terminal device not to occupy the channel within the first time period.
The method according to claim 15, characterized in that:

The first feedback information is sent within the fourth time period;

Wherein, the starting time of the fourth time period is later than the first time, the first time is the time when the sending time of the first information is delayed by a first delay, and the first delay is the The second terminal device determines the time delay of the first feedback information;

The end time of the fourth time period is earlier than the second time, the second time is the time when the starting time of the first time period is ahead of the second time delay, and the second time delay is the first time The delay for the terminal device to process the first feedback information.
The method according to claim 16, characterized in that:

The fourth time period is a preconfigured or predefined time period.
A shared resource allocation method, characterized by including:

The third terminal device receives the first information from the first terminal device; wherein the first information is used to indicate a fifth time period, and the fifth time period is shared by the first terminal device with the third terminal The time period of the device, the fifth time period is used for the third terminal device to send information;

The third terminal device sends second feedback information to the first terminal device; wherein the second feedback information is used to instruct the third terminal device to occupy the channel within the fifth time period.
The method of claim 18, further comprising:

The third terminal device receives second information from the first terminal device; wherein the second information is used to indicate a third time period, and the starting time of the third time period is earlier than the fifth time period. The starting moment of the time period, the third time period is located within the channel occupancy time COT obtained by the first terminal device, and the third time period is the time shared by the first terminal device to the third terminal device. time period, the third time period is used for the third terminal device to send information.
The method according to claim 18 or 19, characterized in that,

The second feedback information is received within a fourth time period;

Wherein, the starting time of the fourth time period is later than the first time, the first time is the time when the sending time of the first information is delayed by a first delay, and the first time delay is the second time. The delay for the terminal device to determine the first feedback information;

The end time of the fourth time period is earlier than the second time, the second time is the time when the starting time of the first time period is ahead of the second time delay, and the second time delay is the first time The delay for the terminal device to process the first feedback information.
A communication device, characterized by including:

Processing module, used to obtain channel occupancy time COT;

A transceiver module configured to send first information to a second terminal device within the COT; wherein the first information is used to indicate a first time period, and the first time period is shared by the first terminal device to the third terminal device. The time period of the second terminal device, the first time period is used for the second terminal device to send information;

The processing module is also configured to perform channel detection in a second time period; wherein the starting time of the second time period is equal to the starting time of the first time period, and the duration of the second time period is Preconfigured or predefined duration;

The transceiver module is also configured to send the first data within the first time period when the channel detection result is less than or equal to the preset threshold; or

The transceiver module is also configured to send second information within the first time period when the channel detection result is less than or equal to the preset threshold; wherein the second information is used to indicate the third time period, and the The starting time of the third time period is early At the end of the first time period, the third time period is located within the COT.
The device according to claim 21, characterized in that:

The first data includes one or more of the following: all-zero data, repeated data; wherein the repeated data is data sent by the first terminal device within the COT.
The device according to claim 21 or 22, characterized in that:

The third time period is a time period shared by the first terminal device with the third terminal device, and the third time period is used for the third terminal device to send information.
The device according to claim 23, characterized in that, after the transceiver module sends the second information within the first time period, it is also used to:

When the time between the sending time of the second information and the starting time of the third time period is greater than or equal to the preset time length, the time between the sending time of the second information and the starting time of the third time period is The first data is sent between the initial time.
A communication device, characterized by including:

Processing module, used to obtain channel occupancy time COT;

A transceiver module configured to send first information to a second terminal device within the COT; wherein the first information is used to indicate a first time period, and the first time period is shared by the first terminal device to the third terminal device. The time period of the second terminal device, the first time period is used for the second terminal device to send information;

The transceiver module is also configured to receive first feedback information from the second terminal device; wherein the first feedback information is used to indicate that the second terminal device does not occupy the channel within the first time period. ;

The transceiver module is also configured to send the first data within the first time period; or

The transceiver module is also configured to send second information within the first time period; wherein the second information is used to indicate a third time period, and the starting time of the third time period is earlier than the At the end of the first time period, the third time period is located within the COT.
The device according to claim 25, characterized in that:

The first feedback information is received within a fourth time period;

Wherein, the starting time of the fourth time period is later than the first time, the first time is the time when the sending time of the first information is delayed by a first delay, and the first delay is the The second terminal device determines the time delay of the first feedback information;

The end time of the fourth time period is earlier than the second time, the second time is the time when the starting time of the first time period is ahead of the second time delay, and the second time delay is the first time The delay for the terminal device to process the first feedback information.
The device according to claim 26, characterized in that:

The fourth time period is a preconfigured or predefined time period.
The device according to any one of claims 25-27, characterized in that,

The first data includes one or more of the following: all-zero data, repeated data; wherein the repeated data is data sent by the first terminal device within the COT.
The device according to claim 28, characterized in that:

The third time period is a time period shared by the first terminal device with the third terminal device, and the third time period is used for the third terminal device to send information.
The device according to claim 29, characterized in that the transceiver module sends After sending the second information, it is also used for:

When the time between the sending time of the second information and the starting time of the third time period is greater than or equal to the preset time length, the time between the sending time of the second information and the starting time of the third time period is The first data is sent between the initial time.
The device according to claim 28 or 29, characterized in that, before receiving the first feedback information from the second terminal device, the transceiver module is also used to:

Send the first information to the third terminal device; wherein the first information also includes a fifth time period, the fifth time period is the time period shared by the first terminal device to the third terminal device. time period, the fifth time period is used for the third terminal device to send information.
The device according to claim 31, characterized in that, after the transceiver module sends the first information to the third terminal device, it is also used to:

Receive second feedback information from the third terminal device, wherein the second feedback information is used to instruct the third terminal device to occupy the channel within the fifth time period.
The device according to claim 32, characterized in that:

The second feedback information is received within a fourth time period;

Wherein, the starting time of the fourth time period is later than the first time, the first time is the time when the sending time of the first information is delayed by a first delay, and the first delay is the The second terminal device determines the time delay of the first feedback information;

The end time of the fourth time period is earlier than the second time, the second time is the time when the starting time of the first time period is ahead of the second time delay, and the second time delay is the first time The delay for the terminal device to process the first feedback information.
The device according to any one of claims 31-33, characterized in that,

The starting time of the fifth time period is later than the starting time of the third time period.
A communication device, characterized by including:

A transceiver module, configured to receive first information from a first terminal device; wherein the first information is used to indicate a first time period, and the first time period is shared by the first terminal device to the second terminal device. A time period, the first time period is used for the second terminal device to send information;

The transceiver module is further configured to send first feedback information to the first terminal device; wherein the first feedback information is used to indicate that the second terminal device does not occupy the channel within the first time period.
The device according to claim 35, characterized in that:

The first feedback information is sent within the fourth time period;

Wherein, the starting time of the fourth time period is later than the first time, the first time is the time when the sending time of the first information is delayed by a first delay, and the first delay is the The second terminal device determines the time delay of the first feedback information;

The end time of the fourth time period is earlier than the second time, the second time is the time when the starting time of the first time period is ahead of the second time delay, and the second time delay is the first time The delay for the terminal device to process the first feedback information.
The device according to claim 36, characterized in that:

The fourth time period is a preconfigured or predefined time period.
A communication device, characterized by including:

a transceiver module, configured to receive first information from the first terminal device; wherein the first information is used to indicate the Five time periods, the fifth time period is the time period shared by the first terminal device to the third terminal device, and the fifth time period is used for the third terminal device to send information;

The transceiver module is further configured to send second feedback information to the first terminal device; wherein the second feedback information is used to instruct the third terminal device to occupy the channel within the fifth time period.
The device according to claim 38, characterized in that:

The transceiver module is also configured to receive second information from the first terminal device; wherein the second information is used to indicate a third time period, and the starting time of the third time period is earlier than the The starting moment of the fifth time period, the third time period is located within the channel occupancy time COT obtained by the first terminal device, and the third time period is shared by the first terminal device to the third terminal The time period of the device, the third time period is used by the third terminal device to send information.
The device according to claim 38 or 39, characterized in that,

The second feedback information is received within a fourth time period;

Wherein, the starting time of the fourth time period is later than the first time, the first time is the time when the sending time of the first information is delayed by a first delay, and the first time delay is the second time. The delay for the terminal device to determine the first feedback information;

The end time of the fourth time period is earlier than the second time, the second time is the time when the starting time of the first time period is ahead of the second time delay, and the second time delay is the first time The delay for the terminal device to process the first feedback information.
A communication device, characterized in that the communication device includes a processor; the processor is used to run a computer program or instructions to cause the communication device to perform the sharing described in any one of claims 1-4. Resource allocation method, or perform the shared resource allocation method as described in any one of claims 5-14, or perform the shared resource allocation method as described in any one of claims 15-17, or perform as claimed in claims 18-20 The shared resource allocation method described in any one of the above.
A communication device, characterized in that the communication device includes an input-output interface and a logic circuit; the input-output interface is used to input and/or output information; and the logic circuit is used to perform any of claims 1-4. The shared resource allocation method described in any one of claims 5-14, or the shared resource allocation method described in any one of claims 15-17, or executed The shared resource allocation method according to any one of claims 18 to 20, processing and/or generating the information according to the information.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions or programs. When the computer instructions or programs are run on the computer, the shared resources as described in any one of claims 1-4 The allocation method is executed, or the shared resource allocation method as claimed in any one of claims 5-14 is executed, or the shared resource allocation method as claimed in any one of claims 15-17 is executed, or as claimed in claim 18 - The shared resource allocation method described in any one of -20 is executed.
A computer program product, characterized in that the computer program product includes computer instructions; when part or all of the computer instructions are run on a computer, the shared resource allocation method as described in any one of claims 1-4 be executed, or the shared resource allocation method as described in any one of claims 5-14 is executed, or the shared resource allocation method as described in any one of claims 15-17 is executed, or as claimed in claims 18-20 The shared resource allocation method described in any one of the above items is executed.
A communication system, characterized in that the communication system includes the communication device according to any one of claims 21-24, or the communication device according to any one of claims 25-34, or the communication device according to any one of claims 25-34. The communication device according to any one of claims 35-37, and the communication device according to any one of claims 38-40.