Search

CN-122029909-A - Transmission resource determination method, device, equipment and storage medium in sidestream communication

CN122029909ACN 122029909 ACN122029909 ACN 122029909ACN-122029909-A

Abstract

A transmission resource determining method, device, equipment and storage medium in side communication relates to the technical field of communication. The method includes the terminal device determining a transmission resource based on a first offset in a time domain (910). By the method, the terminal equipment can exclude most reserved resources for retransmission, the performance of a resource selection algorithm based on resource interception is improved, interference among the terminal equipment is reduced, and accordingly the reliability of communication of the terminal equipment is improved.

Inventors

  • DING YI
  • MA TENG

Assignees

  • OPPO广东移动通信有限公司

Dates

Publication Date
20260512
Application Date
20231201

Claims (19)

  1. A method for determining transmission resources in sidestream communication, wherein the method is performed by a terminal device, the method comprising: the transmission resources are determined based on the first offset in the time domain.
  2. The method of claim 1, wherein the determining the transmission resource based on the first offset in the time domain comprises: Determining a target resource based on the first offset and sidestream control information received in a first time slot; and determining the transmission resource in the resource set subjected to resource exclusion based on the target resource.
  3. The method of claim 2, wherein the received sidestream control information indicates N 1 resources, N 1 is 2 or 3, and the target resource is a2 nd resource and/or a 3rd resource of the N 1 resources.
  4. A method according to claim 3, wherein the first time slot is an mth logical time slot and the first offset is k logical time slots; If the second offset determined according to the time domain resource indication field in the received sidestream control information is t 1 logical time slots, the target resource is the 2 nd resource in the N 1 resources indicated by the received sidestream control information, and the time domain position of the 2 nd resource is the m+t 1 +k logical time slots; If the second offset determined according to the time domain resource indication field in the received sidestream control information is t 1 logical time slots and the third offset is t 2 logical time slots, the target resource is the 2 nd resource and the 3 rd resource in the N 1 resources indicated by the received sidestream control information, the time domain position of the 2 nd resource is the m+t 1 +k logical time slots, and the time domain position of the 3 rd resource is the m+t 2 +k logical time slots; Wherein m and k are integers greater than or equal to 0, and t 1 and t 2 are positive integers.
  5. The method of claim 2, wherein the transmission resources comprise a first transmission resource and a second transmission resource, wherein the first transmission resource is used for initial transmission of a first transport block and the second transmission resource is used for retransmission of the first transport block, or wherein the first transmission resource and the second transmission resource are both used for retransmission of the first transport block, and wherein the first transmission resource and the second transmission resource are offset in time domain by at least the first offset.
  6. The method of claim 5, wherein the first offset is k logical timeslots, k is an integer greater than or equal to 0, and the number of transmission resources for the first transport block indicated by the sidelink control information sent by the terminal device is N 2 ,N 2 ＝min(N select ,N max ),N max configured or preconfigured by a network; N select represents that the number of the transmission resources determined by the terminal equipment is increased by 1 from the time slot of the sidestream control information sent by the terminal equipment plus the offset of k logic time slots to the range of the offset of k+31 logic time slots of the time slot of the sidestream control information sent by the terminal equipment; Or alternatively N select represents the number of the transmission resources determined by the terminal device in the range from the time slot where the sidestream control information sent by the terminal device is located to the offset of k+31 logical time slots from the time slot where the sidestream control information sent by the terminal device is located.
  7. The method of claim 1, wherein the determining the transmission resource based on the first offset in the time domain comprises: Determining a continuous partial interception CPS interception time slot according to the first offset and the selected time slot determined in the resource selection window; According to the lateral control information intercepted in the CPS interception time slot, performing resource elimination on the candidate resources in the selected time slot; and determining the transmission resources in the resource set subjected to the resource exclusion.
  8. The method of claim 7, wherein the first offset is k logical time slots, k is an integer greater than or equal to 0, the listening window corresponding to the CPS listening time slot is [ n+t A ,n+T B ], and time slot n is a time slot for triggering resource selection or reselection, or is a time slot for a higher layer triggering physical layer reporting resource set; n+T B is one of a second time slot, a third time slot, a time slot with earlier time domain positions in the second time slot and the third time slot, wherein the second time slot is T proc,0 +T proc,1 physical time slots before the time slot with earliest time domain position, the third time slot is k logic time slots before the time slot with earliest time domain position, and T proc,0 and T proc,1 are regulated by network configuration or pre-configuration or standards; n+T A is a fourth time slot, where the fourth time slot is the M+k logical time slot before the selected time slot with the earliest time domain position, and M is an integer greater than or equal to 0.
  9. The method of claim 7, wherein the first offset is k logical time slots, k is an integer greater than or equal to 0, the listening window corresponding to the CPS listening time slot is [ n+t A ,n+T B ], and time slot n is a time slot for triggering resource selection or reselection, or is a time slot for a higher layer triggering physical layer reporting resource set; The choice of T A and T B satisfies any one of the following conditions: the terminal equipment has a resource interception result in the interval from the fourth time slot to the second time slot; The terminal equipment has a resource interception result in the interval from the fourth time slot to the third time slot; The terminal equipment has a resource interception result in a section from the fourth time slot to a time slot with an earlier time domain position in the second time slot and the third time slot; The second time slot is T proc,0 +T proc,1 physical time slots before the time-domain position earliest selected time slot, the third time slot is k logic time slots before the time-domain position earliest selected time slot, the fourth time slot is the M+k logic time slots before the time-domain position earliest selected time slot, and the T proc,0 and the T proc,1 are defined by network configuration or pre-configuration or standard, wherein M is an integer greater than or equal to 0.
  10. The method of any one of claims 1 to 9, wherein the first offset is determined based on any one of: configuring a network; Pre-configuring; Standard regulation; determining according to the subcarrier spacing; Indicated by the received sidestream control information; T proc,0 and T proc,1 are specified by a network configuration or pre-configuration or standard, as determined by T proc,0 and/or T proc,1 .
  11. A method for indicating resources in sidestream communication, wherein the method is performed by a terminal device, the method comprising: And transmitting sidestream control information, wherein the sidestream control information is used for indicating the first offset in the time domain.
  12. The method of claim 11, wherein the sidestream control information includes a first indication field, the first indication field being used to indicate the first offset.
  13. The method of claim 12, wherein the first indication field is used to indicate one of at least one first offset, wherein the at least one first offset is network configured, pre-configured, standard specified, or determined from a subcarrier spacing.
  14. A transmission resource determination apparatus in sidestream communication, the apparatus comprising: and the processing module is used for determining transmission resources based on the first offset in the time domain.
  15. A resource indicating device in sidestream communication, said device comprising: And the sending module is used for sending sidestream control information, wherein the sidestream control information is used for indicating the first offset in the time domain.
  16. A terminal device, characterized in that it comprises a processor and a memory, in which a computer program is stored, which processor executes the computer program to implement the method of any one of claims 1 to 10 or to implement the method of any one of claims 11 to 13.
  17. A computer readable storage medium, characterized in that the storage medium has stored therein a computer program for execution by a processor to implement the method of any one of claims 1 to 10 or to implement the method of any one of claims 11 to 13.
  18. A chip comprising programmable logic circuits and/or program instructions for implementing the method of any one of claims 1 to 10 or the method of any one of claims 11 to 13 when the chip is run.
  19. A computer program product comprising computer instructions stored in a computer readable storage medium, the computer instructions being read from the computer readable storage medium and executed by a processor to implement the method of any one of claims 1 to 10 or to implement the method of any one of claims 11 to 13.

Description

Transmission resource determination method, device, equipment and storage medium in sidestream communication Technical Field The embodiment of the application relates to the technical field of communication, in particular to a transmission resource determining method, a device, equipment and a storage medium in sidestream communication. Background In SL (Sidelink ) communication, the terminal device may select transmission resources in the resource pool by listening. The terminal equipment initializes a resource set, eliminates the resources in the resource set based on the non-interception time slot and/or interception result, and then selects transmission resources from the eliminated resource set. With the evolution of technology, how the terminal device determines the transmission resource needs further research. Disclosure of Invention The embodiment of the application provides a transmission resource determining method, a device, equipment and a storage medium in sidestream communication. The technical scheme is as follows: according to an aspect of the embodiments of the present application, there is provided a transmission resource determining method in sidestream communication, the method being performed by a terminal device, the method comprising: the transmission resources are determined based on the first offset in the time domain. According to an aspect of the embodiment of the present application, there is provided a method for indicating resources in sidestream communication, the method being performed by a terminal device, the method comprising: And transmitting sidestream control information, wherein the sidestream control information is used for indicating the first offset in the time domain. According to an aspect of the embodiment of the present application, there is provided a transmission resource determining apparatus in sidestream communication, the apparatus comprising: and the processing module is used for determining transmission resources based on the first offset in the time domain. According to an aspect of the embodiment of the present application, there is provided a resource indicating device in sidestream communication, the device comprising: And the sending module is used for sending sidestream control information, wherein the sidestream control information is used for indicating the first offset in the time domain. According to an aspect of the embodiments of the present application, there is provided a terminal device, including a processor and a memory, where the memory stores a computer program, and the processor executes the computer program to implement the transmission resource determining method in the sidestream communication or implement the resource indicating method in the sidestream communication. According to an aspect of the embodiments of the present application, there is provided a computer-readable storage medium having stored therein a computer program for execution by a processor to implement the transmission resource determination method in the sidestream communication described above or to implement the resource indication method in the sidestream communication described above. According to an aspect of the embodiments of the present application, there is provided a chip, where the chip includes a programmable logic circuit and/or program instructions, and when the chip is running, the chip is configured to implement the transmission resource determining method in the sidestream communication or implement the resource indicating method in the sidestream communication. According to an aspect of the embodiments of the present application, there is provided a computer program product comprising computer instructions stored in a computer-readable storage medium, from which a processor reads and executes the computer instructions to implement the transmission resource determination method in the sidestream communication or to implement the resource indication method in the sidestream communication. The technical scheme provided by the embodiment of the application can have the following beneficial effects: The terminal equipment determines transmission resources based on the first offset in the time domain, so that the terminal equipment can exclude most reserved resources for retransmission, the performance of a resource selection algorithm based on resource interception is improved, the interference among the terminal equipment is reduced, and the communication reliability of the terminal equipment is improved. Drawings FIG. 1 is a schematic diagram of a network architecture provided by one embodiment of the present application; fig. 2 is a schematic diagram of communication between terminal devices according to an embodiment of the present application; FIG. 3 is a schematic diagram of a physical layer structure of SL communication provided by one embodiment of the application; Fig. 4 is a schematic diagram of time-frequency resource location reservation