CN-122003942-A - Communication method and device for side link, terminal, chip and storage medium

Abstract

The embodiment of the application provides a communication method and device of a side uplink, a terminal, a chip and a storage medium, wherein a first terminal receives beam reporting information sent by a second terminal, the beam reporting information comprises beam reporting information corresponding to SL CSI-RS, and the first terminal receives beam reporting information borne by a first PSFCH based on first priority information corresponding to a first PSFCH. Accordingly, the second terminal sends the beam report information carried by the first PSFCH to the first terminal based on the first priority information corresponding to the first PSFCH.

Inventors

• WANG HAO

Assignees

• OPPO广东移动通信有限公司

Dates

Publication Date

20260508

Application Date

20231229

Claims (20)

1. A method of side-link communication, the method comprising: The first terminal receives beam reporting information sent by the second terminal, wherein the beam reporting information comprises beam reporting information corresponding to a sidestream channel state information reference signal SL CSI-RS, and the first terminal receives the beam reporting information carried by the first PSFCH based on first priority information corresponding to a first physical sidestream feedback channel PSFCH.
2. The method of claim 1, wherein, The first priority information is determined based on one or more of second priority information, priority reference value, and first preset value of the SL CSI-RS.
3. The method of claim 2, wherein, The first terminal sends first information to the second terminal, wherein the first information is used for indicating second priority information of the SL CSI-RS.
4. The method of claim 3, wherein, The second priority information is determined based on one or more of the following information, namely the preset mapping relation of the application type and the priority information, the priority information associated with the allocated transmission resources, the priority information of the data to be transmitted and a second preset value.
5. The method of claim 4, wherein, The preset mapping relation between the application type and the priority information is used for determining the corresponding relation between the beam application type and the priority information, wherein the beam application type comprises one or more of initial beam pairing, beam maintenance, beam failure recovery and candidate transmission beam selection.
6. The method according to claim 4 or 5, wherein, The second priority information is priority information which is determined according to a preset mapping relation between the application type and the priority information and corresponds to the beam application type of the SL CSI-RS.
7. The method of claim 6, wherein, And under the condition that the SL CSI-RS and the side-line SL data are transmitted on the same time slot, if the priority information corresponding to the beam application type of the SL CSI-RS is smaller than or equal to the priority information of the SL data, the second priority information indicated by the first information is the priority information corresponding to the beam application type of the SL CSI-RS, and if the priority information corresponding to the beam application type of the SL CSI-RS is larger than the priority information of the SL data, the second priority information indicated by the first information is the priority information of the SL data.
8. The method of claim 4, wherein, The second priority information is priority information associated with the allocated transmission resource, wherein the allocated transmission resource is used for simultaneously transmitting the SL CSI-RS and SL data.
9. The method of claim 4, wherein, The second priority information is determined based on the minimum priority information in the priority information corresponding to the data to be transmitted in the logic channel.
10. The method of claim 4, wherein, The second priority information is the second preset value.
11. The method according to any one of claims 3-8, wherein, The first information is carried on first signaling associated with the SL CSI-RS, the first signaling comprising side-uplink control information SCI.
12. The method of claim 11, wherein, One or more of the SL CSI-RS and the first signaling are transmitted on the same time slot.
13. The method according to any one of claims 2-12, wherein, The first priority information is determined based on the second priority information corresponding to the SL CSI-RS, wherein the beam reporting information comprises one beam reporting information corresponding to the SL CSI-RS.
14. The method according to any one of claims 2-12, wherein, The first priority information is determined based on minimum priority information in the second priority information corresponding to the SL CSI-RS, wherein the beam reporting information comprises a plurality of beam reporting information corresponding to the SL CSI-RS.
15. The method of claim 2, wherein, The first priority information is determined from the priority reference value indicated by the SCI associated with the SL CSI-RS.
16. The method of claim 15, wherein, The first priority information is determined based on one of the priority reference values indicated by the SCIs, wherein the first PSFCH is associated with one of the SCIs.
17. The method of claim 15, wherein, The first priority information is determined based on minimum priority information among the plurality of priority reference values indicated by the plurality of SCIs, wherein the first PSFCH is associated with the plurality of SCIs.
18. The method of claim 2, wherein, The first priority information is the first preset value.
19. The method of any one of claims 1-18, wherein the first terminal receiving the beam-report information carried by the first PSFCH based on a first priority corresponding to a first PSFCH, comprising: The first terminal receives the beam reporting information carried by the first PSFCH based on the first priority information and PSFCH states, wherein the PSFCH states comprise a sending state or a receiving state.
20. The method of claim 19, wherein, The PSFCH states are determined based on a preset processing order of PSFCH and a first set PSFCH, wherein the preset processing order of PSFCH includes first processing the first PSFCH or last processing the first PSFCH, and the first set PSFCH includes one or more first PSFCH to be transmitted and/or one or more first PSFCH to be received.

Description

Communication method and device for side link, terminal, chip and storage medium Technical Field The embodiment of the application relates to the technical field of side-link communication, in particular to a side-link communication method and device, a terminal, a chip and a storage medium. Background To increase the transmission rate of the sidestream (Sidelink) system, millimeter wave frequency bands may be considered for sidestream communications. In the sidestream millimeter wave transmission system, data transmission is carried out between terminals in an analog beam mode. Different beam polling may be used to send different SL channel state Information measurement reference signal (CHANNEL STATE Information REFERENCE SIGNAL, CSI-RS) resources, and one or more SL CSI-RS resources may be selected according to the beam reporting Information. But the terminal performs beam management by measuring the existing SL CSI-RS, so that the time delay of the beam management is greatly increased, and the efficiency of the beam management is seriously affected. Therefore, enhancement of the SL CSI-RS is required. However, after the SL CSI-RS are enhanced and different SL CSI-RS resource structures are introduced, a method for determining priority information corresponding to the SL CSI-RS is lacking, and correspondingly, a related scheme for determining priority information corresponding to PSFCH associated with the SL CSI-RS is also lacking, so that the effectiveness of a beam management mechanism cannot be ensured, and further, the communication reliability is reduced. Disclosure of Invention Embodiments of the present application provide a method and apparatus for side-link communication, a terminal, a chip, a computer readable storage medium, a computer program product, and a computer program. In a first aspect, an embodiment of the present application provides a method for communication in a side uplink, where the method includes: The method comprises the steps that a first terminal receives beam reporting information sent by a second terminal, wherein the beam reporting information comprises beam reporting information corresponding to SL CSI-RS, and the first terminal receives the beam reporting information borne by a first PSFCH based on first priority information corresponding to a first PSFCH. In a second aspect, an embodiment of the present application provides a method for communication in a side uplink, where the method includes: The second terminal sends beam reporting information to the first terminal, wherein the beam reporting information comprises beam reporting information corresponding to SL CSI-RS, and the second terminal sends the beam reporting information borne by the first PSFCH based on first priority information corresponding to the first PSFCH. In a third aspect, an embodiment of the present application provides a communication device for a side uplink, which is applied to a first terminal, and the device includes: The receiving unit is used for receiving beam reporting information sent by the second terminal, wherein the beam reporting information comprises beam reporting information corresponding to SL CSI-RS, and the first terminal receives the beam reporting information carried by the first PSFCH based on first priority information corresponding to the first PSFCH. In a fourth aspect, an embodiment of the present application provides a communication apparatus for a side uplink, applied to a second terminal, the apparatus including: The sending unit is used for sending beam reporting information to the first terminal; the beam reporting information includes beam reporting information corresponding to an SL CSI-RS, and the second terminal sends the beam reporting information carried by the first PSFCH based on first priority information corresponding to the first PSFCH. In a fifth aspect, an embodiment of the present application provides a terminal, where the terminal includes a memory and a processor, where the memory is configured to store computer executable instructions, and the processor is connected to the memory and configured to implement the method according to any one of the foregoing aspects by executing the computer executable instructions. In a sixth aspect, an embodiment of the application provides a chip comprising a processor for invoking and running a computer program from memory, causing a device on which the chip is mounted to perform the method as described in any of the preceding aspects. In a seventh aspect, embodiments of the present application provide a computer readable storage medium storing a computer program which, when executed by at least one processor, implements a method as in any of the above aspects. In an eighth aspect, embodiments of the present application provide a computer program product comprising computer program instructions which, when executed by a computer, cause the computer to carry out the method of any one of the preceding aspects. In a