WO2023125295A1 - 物理侧链路反馈信道发送方法及装置、可读存储介质 - Google Patents

物理侧链路反馈信道发送方法及装置、可读存储介质 Download PDF

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WO2023125295A1
WO2023125295A1 PCT/CN2022/141477 CN2022141477W WO2023125295A1 WO 2023125295 A1 WO2023125295 A1 WO 2023125295A1 CN 2022141477 W CN2022141477 W CN 2022141477W WO 2023125295 A1 WO2023125295 A1 WO 2023125295A1
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side link
feedback channel
physical side
link feedback
channel
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PCT/CN2022/141477
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English (en)
French (fr)
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张萌
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展讯通信（上海）有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/20—Negotiating bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present invention relates to the technical field of wireless communication, in particular to a physical side link feedback channel sending method and device, and a readable storage medium.
  • the research on sidelink mainly focuses on the licensed spectrum, and one physical sidelink feedback channel (Physical Sidelink Feedback Channel, PSFCH) occupies one physical resource block (Resource Block, RB).
  • the frequency domain resource occupies two Orthogonal Frequency Division Multiplexing (OFDM) symbols in the time domain.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the side link may be applied on unlicensed (unlicensed) spectrum.
  • unlicensed spectrum When applied to unlicensed spectrum, it is limited by Listen Before Talk (LBT), which may cause PSFCH to be unable to transmit at some point in time.
  • LBT Listen Before Talk
  • the embodiment of the present invention solves the technical problem that some PSFCHs cannot be transmitted caused by LBT.
  • an embodiment of the present invention provides a method for sending a physical side link feedback channel, including: sending the physical side link feedback channel resource on the physical side link feedback channel resource corresponding to the channel bandwidth of the successfully performed listen-before-talk Channel: the channel bandwidth for successfully listening before talking corresponds to the same partial bandwidth, and the partial bandwidth corresponds to multiple channel bandwidths, and each channel bandwidth corresponds to at least one physical side link feedback channel resource.
  • the physical side link feedback channel before sending the physical side link feedback channel on the physical side link feedback channel resource corresponding to the channel bandwidth of the listen-before-talk successfully, it also includes: receiving indication information, the indication information being used to indicate each channel The physical resource blocks in the bandwidth used for the transmission of the physical side link feedback channel.
  • the receiving indication information includes: receiving a sl-PSFCH-RB-set parameter, where each bit in the sl-PSFCH-RB-set parameter corresponds to a physical resource block.
  • the sending the physical side link feedback channel on the physical side link feedback channel resource corresponding to the channel bandwidth of the successful listening before talking includes: Sending a physical side link feedback channel on the side link feedback channel resource; or, selecting a physical side link feedback channel resource from the physical side link feedback channel resources corresponding to the multiple listen-before-speak success channel bandwidths, and sending the physical side link feedback channel on the selected physical side link feedback channel resource.
  • the selecting a physical side link feedback channel resource from the physical side link feedback channel resources corresponding to the plurality of listen-before-talk successful channel bandwidths includes any of the following: selecting the channel bandwidth The physical side link feedback channel resource with the largest index number; select the physical side link feedback channel resource with the smallest channel bandwidth index number; select the physical side link feedback channel resource with the largest corresponding physical resource block index number; select the corresponding The physical side link feedback channel resource with the smallest physical resource block index number; the earliest physical side link feedback channel resource in time sequence is selected.
  • the physical side link feedback channel resources corresponding to the multiple channel bandwidths are distributed in different time slots.
  • each channel bandwidth corresponds to a physical sidelink feedback channel resource.
  • the channel bandwidth is a frequency domain bandwidth used for listening before talking.
  • the embodiment of the present invention also provides a physical side link feedback channel sending device, including: a sending unit, configured to send the physical side link feedback channel resource on the physical side link feedback channel resource corresponding to the channel bandwidth of the successful listen-before-talk channel.
  • Feedback channel the channel bandwidth for successfully listening before talking corresponds to the same partial bandwidth, and the partial bandwidth corresponds to multiple channel bandwidths, and each channel bandwidth corresponds to at least one physical side link feedback channel resource.
  • An embodiment of the present invention also provides a computer-readable storage medium, the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, and a computer program is stored thereon, and the computer program is executed by a processor The steps of any one of the methods for sending the physical side link feedback channel described above are executed during operation.
  • the embodiment of the present invention also provides another physical side link feedback channel sending device, including a memory and a processor, the memory stores a computer program that can run on the processor, and the processor runs the The computer program executes the steps of any one of the methods for sending the physical side link feedback channel described above.
  • One partial bandwidth corresponds to multiple channel bandwidths
  • each channel bandwidth has at least one physical side link feedback channel resource
  • PSFCH is sent on the PSFCH resource corresponding to the channel bandwidth that successfully performs listen before talk. Since each channel bandwidth corresponds to at least one PSFCH resource, one physical side link shared channel can correspond to multiple PSFCH resources, increasing the number of PSFCH resources corresponding to the physical side link shared channel, and avoiding the situation that PSFCH cannot be transmitted Appears to improve data transmission efficiency.
  • FIG. 1 is a flowchart of a method for sending a physical side link feedback channel in an embodiment of the present invention
  • Fig. 2 is a schematic structural diagram of an apparatus for sending a physical side link feedback channel in an embodiment of the present invention.
  • each channel bandwidth corresponds to at least one PSFCH resource
  • one physical side link shared channel can correspond to multiple PSFCH resources, increasing the number of PSFCH resources corresponding to the physical side link shared channel , to avoid the situation that the PSFCH cannot be transmitted, and improve the data transmission efficiency.
  • An embodiment of the present invention provides a method of listening first and then speaking. Referring to FIG. 1 , specific steps will be described in detail below.
  • the physical side link feedback channel sending method described in the following steps S101 to S102 can be executed by a chip with data processing function in the user equipment, or can be implemented by a chip with data processing function in the user equipment chip module to execute.
  • step S101 on multiple channel bandwidths corresponding to a partial bandwidth, listen first and then talk respectively.
  • a partial bandwidth may include one or more channel bandwidths (channelbandwidth), or one or more channel bandwidths may include a frequency domain bandwidth of a partial bandwidth.
  • the bandwidth of a channel may be 20 MHz or other values.
  • Data transmission can be performed on a channel bandwidth only after the LBT is successful on the channel bandwidth.
  • a partial bandwidth may be 100 MHz, and then a partial bandwidth may include 5 channel bandwidths.
  • a partial bandwidth of 100MHz there is essentially only one physical sidelink feedback channel resource, that is, one physical sidelink shared channel (Physical Sidelink Share Channel, PSSCH) corresponds to one physical sidelink feedback channel resource.
  • PSSCH Physical Sidelink Share Channel
  • a partial bandwidth is 100 MHz, corresponding to 5 channel bandwidths. It is set that one channel bandwidth corresponds to one physical side link feedback channel resource, and then one partial bandwidth corresponds to five physical side link feedback channel resources.
  • step S102 the physical side link feedback channel is sent on the physical side link feedback channel resource corresponding to the channel bandwidth for which the listen first talk is successfully performed.
  • the specific process of listening first and then talking on the channel bandwidth can refer to the existing protocol, and the embodiment of the present invention does not repeat it.
  • the user equipment can select a PSFCH resource from the PSFCH resources corresponding to the channel bandwidths that succeed in listening before speaking, and select a PSFCH resource in the selected channel bandwidth.
  • the PSFCH is sent on the PSFCH resource.
  • the PSFCH resource with the largest channel bandwidth index can be selected, or the PSFCH resource with the smallest channel bandwidth index can be selected.
  • the channel bandwidths for successful listening before speaking are channelbandwidth1, channelbandwidth2, and channelbandwidth4. If the PSFCH resource with the largest channel bandwidth index is selected, the PSFCH resource corresponding to channelbandwidth4 is selected. If the PSFCH resource with the smallest channel bandwidth index is selected, the PSFCH resource corresponding to channelbandwidth1 is selected.
  • the PSFCH resource with the largest corresponding physical resource block index number may also be selected, or the corresponding physical resource block index number may be selected.
  • the PSFCH resource with the smallest resource block index number may also be selected, or the corresponding physical resource block index number may be selected.
  • the successful channel bandwidths of listening before speaking are channelbandwidth1 and channelbandwidth2, the physical resource block index number of the PSFCH resource corresponding to channelbandwidth1 is A, and the physical resource block index number of the PSFCH resource corresponding to channelbandwidth2 is B, and A ⁇ B. If the PSFCH resource corresponding to the largest physical resource block index number is selected, the PSFCH resource corresponding to channelbandwidth2 is selected; if the PSFCH resource corresponding to the lowest physical resource block index number is selected, the PSFCH resource corresponding to channelbandwidth1 is selected.
  • the PSFCH resource ranked first in time sequence may also be selected.
  • the channel bandwidths for successful listening before speaking are channelbandwidth1 and channelbandwidth2, and the PSFCH resource corresponding to channelbandwidth1 is earlier than the PSFCH resource corresponding to channelbandwidth2 in timing, then the PSFCH resource corresponding to channelbandwidth1 is selected.
  • one PSFCH resource is randomly selected from PSFCH resources corresponding to multiple channel bandwidths with successful listen before talk.
  • the user equipment may also transmit PSFCHs in PSFCH resources corresponding to the bandwidths of multiple successful listening before speaking channels.
  • the user equipment may also select two or more PSFCH resources from the PSFCH resources corresponding to multiple channel bandwidths with successful listen-before-speak to send the PSFCH .
  • PSFCH resources corresponding to multiple channel bandwidths may be distributed in different time slots.
  • multiple channel bandwidths may be distributed in different time slots.
  • the user equipment may also receive indication information issued by the base station, and the indication information may be used to indicate the physical resource blocks used for PSFCH transmission in each channel bandwidth.
  • the user equipment determines the PSFCH resources corresponding to which channel bandwidths to transmit the PSFCH, and then determines the physical resource blocks used for transmitting the PSFCH according to the received indication information.
  • the sl-PSFCH-RB-Set parameter can be configured, and the sl-PSFCH-RB-Set parameter can be in the form of a bitmap, indicating the physical resource blocks that can be used for PSFCH transmission in the channel bandwidth.
  • the sl-PSFCH-RB-Set parameter By configuring the sl-PSFCH-RB-Set parameter, the configuration of the physical resource block used for PSFCH transmission is realized.
  • each channel bandwidth may correspond to an independent sl-PSFCH-RB-Set parameter, or all channel bandwidths share the same sl-PSFCH-RB-Set parameter
  • each bit corresponds to a physical resource block. According to the value of the bit corresponding to the sl-PSFCH-RB-Set parameter, it can be determined Corresponds to the total number of physical resource blocks that can be used for PSFCH transmission.
  • sl-PSFCH-CandidateResourceType which can be configured as "startSubCH” or "allocSubCH”.
  • the PSSCH When configured as "startSubCH", The PSSCH only determines the PSFCH resource to be used finally according to the possible PSFCH resource corresponding to its initial subchannel. All PSFCH resources available to it are calculated as
  • the PSSCH When configured as "allocSubCH", The PSSCH only determines the PSFCH resource to be used finally according to the possible PSFCH resource corresponding to its initial subchannel. All PSFCH resources available to it are calculated as
  • the P ID is the source ID provided by the SCI. If the casttype in the SCI is configured as "01", the M ID corresponds to the identity indicated by the high layer parameter received by the UE receiving the PSSCH; otherwise, the M ID is 0.
  • each channel bandwidth corresponds to at least one PSFCH resource
  • one physical side link shared channel can correspond to multiple PSFCH resources, increasing the PSFCH resources corresponding to the physical side link shared channel
  • the number of the PSFCH can avoid the situation that the PSFCH cannot be transmitted, and the data transmission efficiency can be improved.
  • a physical side link feedback channel sending device 20 in the embodiment of the present invention including: an execution unit 201 and a sending unit 202, wherein:
  • the execution unit 201 is configured to respectively perform listening before speaking on multiple channel bandwidths corresponding to a partial bandwidth; each channel bandwidth corresponds to at least one physical side link feedback channel resource;
  • the sending unit 202 is configured to send the physical side link feedback channel on the physical side link feedback channel resource corresponding to the channel bandwidth in which the listen first talk is successfully performed.
  • each module/unit contained in the product may be a software module/unit, or a hardware module/unit, or may be partly a software module/unit, partly is a hardware module/unit.
  • each module/unit contained therein may be realized by hardware such as a circuit, or at least some modules/units may be realized by a software program, and the software program Running on the integrated processor inside the chip, the remaining (if any) modules/units can be realized by means of hardware such as circuits; They are all realized by means of hardware such as circuits, and different modules/units can be located in the same component (such as chips, circuit modules, etc.) or different components of the chip module, or at least some modules/units can be realized by means of software programs,
  • the software program runs on the processor integrated in the chip module, and the remaining (if any) modules/units can be realized by hardware such as circuits; /Units can be realized by means of hardware such as circuits, and different modules/units can be located in the same component (such as chips, circuit modules, etc.) or different components in the terminal, or at least some modules/units can be implemented in the form of software programs Realization, the software program runs on
  • An embodiment of the present invention also provides a computer-readable storage medium, the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, and a computer program is stored thereon, and the computer program is executed by a processor During operation, the steps of the method for sending the physical side link feedback channel provided by any embodiment are executed.
  • the embodiment of the present invention also provides a physical side link feedback channel sending device, including a memory and a processor, the memory stores a computer program that can run on the processor, and the processor runs the computer The program executes the steps of the method for sending the physical side link feedback channel provided by any of the above embodiments.

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Abstract

一种物理侧链路反馈信道发送方法及装置、可读存储介质，所述方法包括：在成功进行先听后说的信道带宽对应的物理侧链路反馈信道资源上发送物理侧链路反馈信道；所述成功进行先听后说的信道带宽对应同一个部分带宽，且所部分带宽对应多个信道带宽，每一个信道带宽对应至少一个物理侧链路反馈信道资源。上述方案可以避免PSFCH无法传输。

Description

物理侧链路反馈信道发送方法及装置、可读存储介质
本申请要求于2021年12月31日提交中国专利局、申请号为202111677011.X、发明名称为“物理侧链路反馈信道发送方法及装置、可读存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及无线通信技术领域，尤其涉及一种物理侧链路反馈信道发送方法及装置、可读存储介质。
背景技术
目前，针对侧链路(Sidelink)的研究主要集中在授权(licensed)频谱上，1个物理侧链路反馈信道(Physical Sidelink Feedback Channel，PSFCH)占用1个物理资源块(Resource Block，RB)的频域资源，时域上占用两个正交频分多址(Orthogonal Frequency Division Multiplexing，OFDM)符号。
在后续演进过程中，可能会将侧链路应用在非授权(unlicensed)频谱上。在应用到非授权频谱上时，受限于先听后说(Listen Before Talk，LBT)的限制，可能会导致PSFCH在一些时间点上无法传输。
发明内容
本发明实施例解决的是LBT所导致的部分PSFCH无法传输的技术问题。
为解决上述技术问题，本发明实施例提供一种物理侧链路反馈信 道发送方法，包括：在成功进行先听后说的信道带宽对应的物理侧链路反馈信道资源上发送物理侧链路反馈信道；所述成功进行先听后说的信道带宽对应同一个部分带宽，且所部分带宽对应多个信道带宽，每一个信道带宽对应至少一个物理侧链路反馈信道资源。
可选的，在成功进行先听后说的信道带宽对应的物理侧链路反馈信道资源上发送物理侧链路反馈信道之前，还包括：接收指示信息，所述指示信息用于指示每一个信道带宽中用于物理侧链路反馈信道传输的物理资源块。
可选的，所述接收指示信息，包括：接收sl-PSFCH-RB-set参数，所述sl-PSFCH-RB-set参数中的每一比特对应一个物理资源块。
可选的，所述在成功进行先听后说的信道带宽对应的物理侧链路反馈信道资源上发送物理侧链路反馈信道，包括：在每一个先听后说成功的信道带宽对应的物理侧链路反馈信道资源上发送物理侧链路反馈信道；或，从所述多个先听后说成功的信道带宽对应的物理侧链路反馈信道资源中选择一个物理侧链路反馈信道资源，并在所选择的物理侧链路反馈信道资源上发送所述物理侧链路反馈信道。
可选的，所述从所述多个先听后说成功的信道带宽对应的物理侧链路反馈信道资源中选择一个物理侧链路反馈信道资源，包括以下任一种：选择所处信道带宽索引号最大的物理侧链路反馈信道资源；选择所处信道带宽索引号最小的物理侧链路反馈信道资源；选择对应的物理资源块索引号最大的物理侧链路反馈信道资源；选择对应的物理资源块索引号最小的物理侧链路反馈信道资源；选择时序上最早的物理侧链路反馈信道资源。
可选的，所述多个信道带宽对应的物理侧链路反馈信道资源分布在不同时隙。
可选的，每一个信道带宽对应一个物理侧链路反馈信道资源。
可选的，所述信道带宽为用于进行先听后说的频域带宽。
本发明实施例还提供了一种物理侧链路反馈信道发送装置，包括：发送单元，用于在成功进行先听后说的信道带宽对应的物理侧链路反馈信道资源上发送物理侧链路反馈信道；所述成功进行先听后说的信道带宽对应同一个部分带宽，且所部分带宽对应多个信道带宽，每一个信道带宽对应至少一个物理侧链路反馈信道资源。
本发明实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质为非易失性存储介质或非瞬态存储介质，其上存储有计算机程序，所述计算机程序被处理器运行时执行上述任一种所述的物理侧链路反馈信道发送方法的步骤。
本发明实施例还提供了另一种物理侧链路反馈信道发送装置，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行上述任一种所述的物理侧链路反馈信道发送方法的步骤。
与现有技术相比，本发明实施例的技术方案具有以下有益效果：
一个部分带宽对应多个信道带宽，每一个信道带宽存在至少一个物理侧链路反馈信道资源，在成功进行先听后说的信道带宽对应的PSFCH资源上发送PSFCH。由于每一个信道带宽均对应至少一个PSFCH资源，因此，一个物理侧链路共享信道可以对应多个PSFCH资源，增加了物理侧链路共享信道对应的PSFCH资源的个数，避免PSFCH无法传输的情况出现，提高数据传输效率。
附图说明
图1是本发明实施例中的一种物理侧链路反馈信道发送方法的流程图；
图2是本发明实施例中的一种物理侧链路反馈信道发送装置的结构示意图。
具体实施方式
如上述背景技术中所述，在将侧链路应用在非授权(unlicensed)频谱上时，受限于LBT的限制，导致PSFCH在一些时间点上无法传输。
在本发明实施例中，由于每一个信道带宽均对应至少一个PSFCH资源，因此，一个物理侧链路共享信道可以对应多个PSFCH资源，增加了物理侧链路共享信道对应的PSFCH资源的个数，避免PSFCH无法传输的情况出现，提高数据传输效率。
为使本发明的上述目的、特征和有益效果能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。
本发明实施例提供了一种先听后说方法，参照图1，以下通过具体步骤进行详细说明。
在具体实施中，下述步骤S101～步骤S102所记载的物理侧链路反馈信道发送方法可以由用户设备中具有数据处理功能的芯片所执行，也可以由用户设备中包含有数据处理功能的芯片的芯片模组来执行。
步骤S101，在一个部分带宽对应的多个信道带宽上，分别进行先听后说。
在具体实施中，一个部分带宽(Bandwidth Part，BWP)可以包括一个或者多个信道带宽(channelbandwidth)，或者1个或多个信道带宽包含一个部分带宽的频域带宽。
在实际应用中可知，一个信道带宽的大小可以为20MHz，也可以为其他数值。只有在一个信道带宽上LBT成功之后，才可以在该信道带宽上进行数据传输。
一个部分带宽可以为100MHz，则一个部分带宽可以包括5个信道带宽。在现有技术中，对于100MHz的部分带宽，实质上仅存在一个物理侧链路反馈信道资源，也即一个物理侧链路共享信道(Physical  Sidelink Share Channel，PSSCH)对应一个物理侧链路反馈信道资源。
而在本发明实施例中，一个部分带宽为100MHz，对应5个信道带宽。设定一个信道带宽对应一个物理侧链路反馈信道资源，则一个部分带宽对应5个物理侧链路反馈信道资源。
步骤S102，在成功进行先听后说的信道带宽对应的物理侧链路反馈信道资源上发送物理侧链路反馈信道。
在具体实施中，在信道带宽上进行先听后说的具体过程可以参照现有协议，本发明实施例不做赘述。
在具体实施中，在获知存在多个先听后说成功的信道带宽后，用户设备可以从多个先听后说成功的信道带宽对应的PSFCH资源中，选择一个PSFCH资源，并在所选择的PSFCH资源上发送PSFCH。
在本发明实施例中，在从多个先听后说成功的信道带宽对应的PSFCH资源中选择一个PSFCH资源时，可以选择信道带宽索引最大的PSFCH资源，也可以选择信道带宽索引最小的PSFCH资源。
例如，先听后说成功的信道带宽为channelbandwidth1、channelbandwidth2以及channelbandwidth4。若选择信道带宽索引最大的PSFCH资源，则选择channelbandwidth4对应的PSFCH资源。若选择信道带宽索引最小的PSFCH资源，则选择channelbandwidth1对应的PSFCH资源。
在本发明实施例中，在从多个先听后说成功的信道带宽对应的PSFCH资源中选择一个PSFCH资源时，也可以选择对应的物理资源块索引号最大的PSFCH资源，或者选择对应的物理资源块索引号最小的PSFCH资源。
例如，先听后说成功的信道带宽为channelbandwidth1、channelbandwidth2，channelbandwidth1对应的PSFCH资源的物理资源块索引号为A，channelbandwidth2对应的PSFCH资源的物理资源块索引号为B，且A＜B。若选择对应的物理资源块索引号最大的 PSFCH资源，则选择channelbandwidth2对应的PSFCH资源；若选择对应的物理资源块索引号最消的PSFCH资源，则选择channelbandwidth1对应的PSFCH资源。
在本发明实施例中，在从多个先听后说成功的信道带宽对应的PSFCH资源中选择一个PSFCH资源时，也可以选择时序上排序最靠前的PSFCH资源。
例如，先听后说成功的信道带宽为channelbandwidth1、channelbandwidth2，channelbandwidth1对应的PSFCH资源在时序上早于channelbandwidth2对应的PSFCH资源，则选择channelbandwidth1对应的PSFCH资源。
可以理解的是，还可以采用其他方式，从多个先听后说成功的信道带宽对应的PSFCH资源中选择一个PSFCH资源。例如，随机从多个先听后说成功的信道带宽对应的PSFCH资源中选择一个PSFCH资源。
在具体实施中，在获知存在多个先听后说成功的信道带宽后，用户设备也可以分别在多个先听后说成功的信道带宽对应的PSFCH资源中均发送PSFCH。或者，在获知存在多个先听后说成功的信道带宽后，用户设备也可以从多个先听后说成功的信道带宽对应的PSFCH资源中，选择两个或更多个PSFCH资源来发送PSFCH。
在从多个先听后说成功的信道带宽对应的PSFCH资源中，选择两个或更多个PSFCH资源时，可以参照上述从多个先听后说成功的信道带宽对应的PSFCH资源中选择一个PSFCH资源的方式，此处不做赘述。
在具体实施中，多个信道带宽对应的PSFCH资源可以分布在不同的时隙，换而言之，多个信道带宽可以分布在不同的时隙。
在具体实施中，在执行步骤S102之前，用户设备还可以接收基站下发的指示信息，指示信息可以用于指示每一个信道带宽中用于 PSFCH传输的物理资源块。用户设备在确定在哪些信道带宽对应的PSFCH资源上传输PSFCH，进而根据接收到的指示信息，确定传输PSFCH所使用的物理资源块。
在本发明实施例中，可以配置sl-PSFCH-RB-Set参数，sl-PSFCH-RB-Set参数可以为bitmap形式，表示信道带宽中可以用于PSFCH传输的物理资源块。通过配置sl-PSFCH-RB-Set参数，实现用于PSFCH传输的物理资源块的配置。
在本发明实施例中，每个信道带宽可以对应独立的sl-PSFCH-RB-Set参数，或者，所有信道带宽公用相同的sl-PSFCH-RB-Set参数
sl-PSFCH-RB-Set参数中，每一个bit对应一个物理资源块，根据sl-PSFCH-RB-Set参数对应的比特的取值，可以确定
Figure PCTCN2022141477-appb-000001
对应着可以用于PSFCH传输的物理资源块的总数。
在具体应用中，sl-PSFCH-RB-Set参数对应的某一比特取值为1时，表征该比特可以用于PSFCH传输；反之，若该比特取值为0，则表征该比特不可以用于PSFCH传输。
在具体实施中，一个PSSCH可以占据多个子信道(subchannel)，可以只选择起始的subchannel作为参考点进行映射，也可以选择基于所有subchannel作为参考点进行映射。
具体来说，可以通过高层信令sl-PSFCH-CandidateResourceType来配置实现，可以配置为“startSubCH”或者“allocSubCH”。
当配置为“startSubCH”时，
Figure PCTCN2022141477-appb-000002
PSSCH只根据其起始subchannel对应的可能PSFCH资源，来确定最后所采用的PSFCH资源。其可用的所有PSFCH资源，计算为
Figure PCTCN2022141477-appb-000003
当配置为“allocSubCH”时，
Figure PCTCN2022141477-appb-000004
PSSCH只根据其起始subchannel对应的可能PSFCH资源，来确定最后所采用的PSFCH资源。其可用的所有PSFCH资源，计算为
Figure PCTCN2022141477-appb-000005
具体用户设备采用哪一个PSFCH资源是通过下面公式确定的，
Figure PCTCN2022141477-appb-000006
其中，P ID是SCI提供的sourceID，如果SCI中的casttype配置为“01”，M ID对应着接收所述PSSCH的UE所接收的高层参数所指示的identity，反之，M ID为0。
综上，在本发明实施例中，由于每一个信道带宽均对应至少一个PSFCH资源，因此，一个物理侧链路共享信道可以对应多个PSFCH资源，增加了物理侧链路共享信道对应的PSFCH资源的个数，避免PSFCH无法传输的情况出现，提高数据传输效率。
参照图2，给出了本发明实施例中的一种物理侧链路反馈信道发送装置20，包括：执行单元201以及发送单元202，其中：
执行单元201，用于在一个部分带宽对应的多个信道带宽上，分别进行先听后说；每一个信道带宽对应至少一个物理侧链路反馈信道资源；
发送单元202，用于在成功进行先听后说的信道带宽对应的物理侧链路反馈信道资源上发送物理侧链路反馈信道。
在具体实施中，上述的物理侧链路反馈信道发送装置20可以对应于用户设备中具有数据处理功能的芯片，如基带芯片；或者对应于用户设备中包括具有数据处理功能的芯片(如基带芯片)的芯片模组，或者对应于用户设备。
在具体实施中，关于上述实施例中描述的各个装置、产品包含的各个模块/单元，其可以是软件模块/单元，也可以是硬件模块/单元，或者也可以部分是软件模块/单元，部分是硬件模块/单元。
例如，对于应用于或集成于芯片的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片内部 集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片模组内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于终端的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于终端内同一组件(例如，芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于终端内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现。
本发明实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质为非易失性存储介质或非瞬态存储介质，其上存储有计算机程序，所述计算机程序被处理器运行时执行任一实施例所提供的物理侧链路反馈信道发送方法的步骤。
本发明实施例还提供了一种物理侧链路反馈信道发送装置，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行上述任一实施例所提供的物理侧链路反馈信道发送方法的步骤。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指示相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质可以包括：ROM、RAM、磁盘或光盘等。
虽然本发明披露如上，但本发明并非限定于此。任何本领域技术人员，在不脱离本发明的精神和范围内，均可作各种更动与修改，因此本发明的保护范围应当以权利要求所限定的范围为准。

Claims (11)

  1. 一种物理侧链路反馈信道发送方法，其特征在于，包括：
    在成功进行先听后说的信道带宽对应的物理侧链路反馈信道资源上发送物理侧链路反馈信道；所述成功进行先听后说的信道带宽对应同一个部分带宽，且所部分带宽对应多个信道带宽，每一个信道带宽对应至少一个物理侧链路反馈信道资源。
  2. 如权利要求1所述的物理侧链路反馈信道发送方法，其特征在于，在成功进行先听后说的信道带宽对应的物理侧链路反馈信道资源上发送物理侧链路反馈信道之前，还包括：
    接收指示信息，所述指示信息用于指示每一个信道带宽中用于物理侧链路反馈信道传输的物理资源块。
  3. 如权利要求2所述的物理侧链路反馈信道发送方法，其特征在于，所述接收指示信息，包括：
    接收sl-PSFCH-RB-set参数，所述sl-PSFCH-RB-set参数中的每一比特对应一个物理资源块。
  4. 如权利要求1所述的物理侧链路反馈信道发送方法，其特征在于，所述在成功进行先听后说的信道带宽对应的物理侧链路反馈信道资源上发送物理侧链路反馈信道，包括：
    在每一个先听后说成功的信道带宽对应的物理侧链路反馈信道资源上发送物理侧链路反馈信道；
    或，从多个先听后说成功的信道带宽对应的物理侧链路反馈信道资源中选择一个物理侧链路反馈信道资源，并在所选择的物理侧链路反馈信道资源上发送所述物理侧链路反馈信道。
  5. 如权利要求4所述的物理侧链路反馈信道发送方法，其特征在于，所述从所述多个先听后说成功的信道带宽对应的物理侧链路反馈信道资源中选择一个物理侧链路反馈信道资源，包括以下任一种：
    选择所处信道带宽索引号最大的物理侧链路反馈信道资源；
    选择所处信道带宽索引号最小的物理侧链路反馈信道资源；
    选择对应的物理资源块索引号最大的物理侧链路反馈信道资源；
    选择对应的物理资源块索引号最小的物理侧链路反馈信道资源；
    选择时序上最早的物理侧链路反馈信道资源。
  6. 如权利要求1所述的物理侧链路反馈信道发送方法，其特征在于，所述多个信道带宽对应的物理侧链路反馈信道资源分布在不同时隙。
  7. 如权利要求1所述的物理侧链路反馈信道发送方法，其特征在于，每一个信道带宽对应一个物理侧链路反馈信道资源。
  8. 如权利要求1～7任一项所述的物理侧链路反馈信道发送方法，其特征在于，所述信道带宽为用于进行先听后说的频域带宽。
  9. 一种物理侧链路反馈信道发送装置，其特征在于，包括：
    发送单元，用于在成功进行先听后说的信道带宽对应的物理侧链路反馈信道资源上发送物理侧链路反馈信道；所述成功进行先听后说的信道带宽对应同一个部分带宽，且所部分带宽对应多个信道带宽，每一个信道带宽对应至少一个物理侧链路反馈信道资源。
  10. 一种计算机可读存储介质，所述计算机可读存储介质为非易失性存储介质或非瞬态存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器运行时执行权利要求1～8任一项所述的物理侧链路反馈信道发送方法的步骤。
  11. 一种物理侧链路反馈信道发送装置，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，其特征在于，所述处理器运行所述计算机程序时执行权利要求1～8任一项所述的物理侧链路反馈信道发送方法的步骤。
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