CN-116391390-B - Side-link communication method, device and storage medium

Abstract

The disclosure relates to a side link communication method, a device and a storage medium, which relate to the technical field of communication and are used for providing performance of side link-based beam transmission. The method comprises the steps of sending indication information, wherein the indication information is used for indicating reserved resources and beam information corresponding to the reserved resources.

Inventors

• LI MINGJU

Assignees

• 北京小米移动软件有限公司

Dates

Publication Date

20260505

Application Date

20230131

Claims (20)

1. 1. A method of side link communication, the method performed by a first device, comprising: Transmitting indication information, wherein the indication information is used for indicating reserved resources and beam information corresponding to the reserved resources, the beam information comprises reference signal identifiers, and a quasi co-location relation exists between side chain channels and/or signals transmitted on the reserved resources and reference signals identified by the reference signal identifiers; The indication information is used for indicating a beam used for transmitting a first side link channel and/or a signal and/or a beam used for transmitting a second side link channel and/or a signal; The first side link channel and/or signal is a side link channel and/or signal transmitted on a frequency domain resource configuration and/or a time domain resource configuration indicated by side link control information SCI where the indication information is located, and the second side link channel and/or signal is a side link channel and/or signal transmitted on the reserved resource; The indication information is further used for indicating at least two sets of fourth beam information, and the at least two sets of fourth beam information are used for indicating beams of second side chain channels and/or signals transmitted on reserved resources of at least two time units; the number of time units included in the reserved resources is M, at least two sets of beam information comprise N sets of fourth beam information, M is a positive integer, and N is a positive integer greater than or equal to 2; The at least two sets of fourth beam information are used for indicating beams of second side chain channels and/or signals transmitted on reserved resources of at least two time units, and the method comprises the following steps: in response to M=N, the N sets of fourth beam information are in one-to-one correspondence with side chain channels and/or signals transmitted on reserved resources of M time units, and/or And responding to M > N, wherein the N sets of fourth beam information are in one-to-one correspondence with side chain channels and/or signals transmitted on reserved resources of N groups of time units, the M time units are divided into N groups, and each group comprises time units which are continuous or discontinuous.
2. 2. The side link communication method according to claim 1, wherein the indication information is used to indicate at least one set of beam information.
3. 3. The side link communication method of claim 2, wherein each set of beam information in the at least one set of beam information includes at least one beam identification, different ones of the at least one beam identification corresponding to different antenna panels.
4. 4. The side link communication method according to claim 1, wherein the indication information is used to indicate a set of beam information; The set of beam information is used for transmission of the first side link channel and/or signal and/or transmission of the second side link channel and/or signal.
5. 5. The side link communication method according to claim 1, wherein the indication information is used for indicating at least two sets of beam information; The at least two sets of beam information comprise first beam information and/or second beam information; wherein the first beam information is used to indicate a beam for the first side link channel and/or signal transmission and the second beam information is used to indicate a beam for the second side link channel and/or signal transmission.
6. 6. The side link communication method according to claim 1, wherein the indication information is used to indicate a set of third beam information, and the set of third beam information is used to indicate beams of the second side link channel and/or signal transmitted on the reserved resource of at least one time unit.
7. 7. The side link communication method according to claim 4 or 5, characterized in that the method further comprises: Beam information for the first sidelink channel and/or signal transmission is determined based on a time interval between the indication information and the first sidelink channel and/or signal.
8. 8. The side link communication method according to claim 7, wherein determining beam information for the first side link channel and/or signal transmission based on a time interval between the indication information and the first side link channel and/or signal comprises: determining beam information for transmission of the first sidelink channel and/or signal based on the indication information in response to a time interval between the indication information and the first sidelink channel and/or signal being greater than or equal to a time interval threshold, and/or In response to a time interval between the indication information and the first sidelink channel and/or signal being less than the time interval threshold, beam information for transmission of the first sidelink channel and/or signal is determined based on a default rule.
9. 9. The side link communication method according to claim 1, wherein before transmitting the indication information, the method further comprises: And determining whether the indication information comprises beam information corresponding to the reserved resource or not based on configuration information.
10. 10. The side link communication method according to claim 1, wherein the indication information is included in SCI; the SCI includes SCI 1-A, SCI 2-A, SCI 2-B, SCI 2-C, or other SCIs.
11. 11. A side link communication method, the method performed by a second device, comprising: receiving indication information, wherein the indication information is used for indicating reserved resources and beam information corresponding to the reserved resources, and the beam information comprises a reference signal identifier; The side chain channels and/or signals transmitted on the reserved resources have quasi co-location relation with the reference signals identified by the reference signal identifiers; The indication information is used for indicating a beam used for transmitting a first side link channel and/or a signal and/or a beam used for transmitting a second side link channel and/or a signal; The first side link channel and/or signal is a side link channel and/or signal transmitted on a frequency domain resource configuration and/or a time domain resource configuration indicated by side link control information SCI where the indication information is located, and the second side link channel and/or signal is a side link channel and/or signal transmitted on the reserved resource; the indication information is used for indicating at least two sets of fourth beam information, and the at least two sets of fourth beam information are used for indicating beams of second side chain channels and/or signals transmitted on reserved resources of at least two time units; the number of time units included in the reserved resources is M, at least two sets of beam information comprise N sets of fourth beam information, M is a positive integer, and N is a positive integer greater than or equal to 2; The at least two sets of fourth beam information are used for indicating beams of second side chain channels and/or signals transmitted on reserved resources of at least two time units, and the method comprises the following steps: in response to M=N, the N sets of fourth beam information are in one-to-one correspondence with side chain channels and/or signals transmitted on reserved resources of M time units, and/or And responding to M > N, wherein the N sets of fourth beam information are in one-to-one correspondence with side chain channels and/or signals transmitted on reserved resources of N groups of time units, the M time units are divided into N groups, and each group comprises time units which are continuous or discontinuous.
12. 12. The side link communication method according to claim 11, wherein the indication information is used to indicate at least one set of beam information.
13. 13. The side link communication method of claim 12 wherein each set of beam information in the at least one set of beam information includes at least one beam identification, different ones of the at least one beam identification corresponding to different antenna panels.
14. 14. The side link communication method according to claim 11, wherein the indication information is used to indicate a set of beam information; The set of beam information is used for transmission of the first side link channel and/or signal and/or transmission of the second side link channel and/or signal.
15. 15. The side link communication method according to claim 11, wherein the indication information is used to indicate at least two sets of beam information; The at least two sets of beam information comprise first beam information and/or second beam information; wherein the first beam information is used to indicate a beam for the first side link channel and/or signal transmission and the second beam information is used to indicate a beam for the second side link channel and/or signal transmission.
16. 16. The side link communication method according to claim 11, wherein the indication information is used to indicate a set of third beam information, and the set of third beam information is used to indicate beams of the second side link channel and/or signal transmitted on the reserved resource of at least one time unit.
17. 17. Side link communication method according to claim 14 or 15, characterized in that the beam information of the first side link channel and/or signal transmission is determined based on the time interval between the indication information and the first side link channel and/or signal.
18. 18. The method of claim 17, wherein when a time interval between the indication information and the first sidelink channel and/or signal is greater than or equal to a time interval threshold, beam information for transmission of the first sidelink channel and/or signal is determined based on the indication information, and/or When the time interval between the indication information and the first side link channel and/or signal is smaller than the time interval threshold value, the beam information of the transmission of the first side link channel and/or signal is determined based on a default rule.
19. 19. The side link communication method according to claim 11, wherein before receiving the indication information, the method further comprises: And determining configuration information, wherein the configuration information is used for indicating the second equipment to determine whether the indication information comprises beam information corresponding to the reserved resource.
20. 20. The side link communication method according to claim 11, wherein the indication information is included in SCI; the SCI includes SCI 1-A, SCI 2-A, SCI 2-B, SCI 2-C, or other SCIs.

Description

Side-link communication method, device and storage medium Technical Field The disclosure relates to the field of communication technologies, and in particular, to a side link (sidelink) communication method, a side link (sidelink) communication device and a storage medium. Background In New Radio technologies (NR), particularly when the communication band is in the second frequency band (frequency range 2, fr 2), since the high frequency channel decays fast, in order to ensure coverage, beam-based transmission and reception are required. In order to achieve beam-based transmission, beam measurements are required. At least one of a Synchronization SIGNAL AND PHYSICAL Broadcast Channel Block (SSB) reference signal and a channel state information REFERENCE SIGNAL (CSI-RS) reference signal is mainly used in NR for beam measurement. In the related art, how to implement resource reservation based on beams by supporting a resource reservation scheme between different devices based on sidelink communication is being studied. Disclosure of Invention To overcome the problems in the related art, the present disclosure provides a side link communication method, apparatus, and storage medium. According to a first aspect of embodiments of the present disclosure, there is provided a side link communication method, which is performed by a first device, including sending indication information, where the indication information is used to indicate a reserved resource, and beam information corresponding to the reserved resource. According to a second aspect of the embodiments of the present disclosure, there is provided a side link communication method, which is performed by a second device, including receiving indication information, where the indication information is used to indicate a reserved resource, and beam information corresponding to the reserved resource. According to a third aspect of the embodiments of the present disclosure, there is provided a side link communication apparatus, including a transmitting module, configured to transmit indication information, where the indication information is used to indicate reserved resources, and beam information corresponding to the reserved resources. According to a fourth aspect of the embodiments of the present disclosure, there is provided a side link communication device, including a receiving module, configured to receive indication information, where the indication information is used to indicate reserved resources, and beam information corresponding to the reserved resources. According to a fifth aspect of embodiments of the present disclosure, there is provided a side link communication device comprising a processor, a memory for storing processor executable instructions, wherein the processor is configured to perform the method of the first aspect or any implementation of the first aspect. According to a sixth aspect of an embodiment of the present disclosure, there is provided a side link communication device, comprising a processor, a memory for storing processor executable instructions, wherein the processor is configured to perform the method of the second aspect or any implementation of the second aspect. According to a seventh aspect of embodiments of the present disclosure, there is provided a storage medium having stored therein instructions which, when executed by a processor of a first device, enable the first device to perform the method as described in the first aspect or any implementation of the first aspect. According to an eighth aspect of embodiments of the present disclosure, there is provided a storage medium having stored therein instructions which, when executed by a processor of a second device, enable the second device to perform the method described in the above second aspect or any one of the embodiments of the second aspect. The technical scheme provided by the embodiment of the disclosure can include the following beneficial effects that the first equipment sends the indication information, the indication information is used for indicating the reserved resources and the beam information corresponding to the reserved resources, so that the second equipment receiving the indication information can determine the beam-based resource reservation based on the indication information, and the performance of the sidelink based on the beam transmission is improved. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. Drawings The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. Fig. 1 is a schematic diagram of a wireless communication system, according to an example embodiment. Fig. 2 is a flow chart illustrating a method of sidelink com