Method, terminal device, and network device for reporting failure of listening before transmission

Abstract

The embodiments of this application relate to an antenna switching method, a terminal device, and a communication device for reporting the failure of listen-before-talk. The method includes that the terminal device performs listen-before-talk (LBT) detection on at least one resource; and the terminal device indicates the LBT failure to the upper layer according to the first principle. The embodiments of this application can realize how the UE clearly reports the LBT failure in case of resource conflict or overlap.

Claims

1. A method for reporting the failure of listen - before - transmit, including: The terminal device performs listen - before - transmit (LBT) detection on at least one resource; In the case where, in order to support the priority transmission of high - priority resources, the higher layer indicates multiple transmittable resources to the physical layer, resulting in resource conflicts or overlaps, the terminal device indicates the LBT failure to the higher layer according to the first principle, and the first principle includes: If the LBT detection is successful on at least some of the at least one resource, the LBT failure is not reported to the higher layer, and the at least some resources do not include the high - priority resources, and the data corresponding to the high - priority resources can be sent through other resources where the LBT detection is successful; If the LBT detection fails on at least some of the at least one resource, the LBT failure is reported to the higher layer, and the at least some resources include the high - priority resources, and the data corresponding to the high - priority resources cannot be sent through other resources where the LBT detection is successful.

2. The method according to claim 1, wherein, The count value of the reported LBT failure includes one of the following: the number of resources where the LBT detection fails, the number of high - priority resources where the LBT detection fails.

3. The method according to claim 1, wherein, The first principle further includes: The reported LBT failure is reported for at least one of the bandwidth part (BWP), serving cell, and resources.

4. The method according to claim 3, wherein, The first principle further includes: When reporting the LBT failure, at least one of the following is carried: the identifier of the BWP, the identifier of the serving cell, the identifier of the resource.

5. The method according to any one of claims 1 to 4, wherein, The terminal device indicates the LBT failure to the higher layer according to the first principle, including: In the case of resource conflicts or overlaps and meeting the first condition, the terminal device indicates the LBT failure to the higher layer according to the first principle.

6. The method according to claim 5, wherein, The first condition includes at least one of the following: The physical layer receives multiple available / pending transmission information from the higher layer; The physical layer determines that there are multiple resource conflicts or overlaps; The priorities of multiple conflicting or overlapping resources are different; The priorities of multiple conflicting or overlapping resources are different, and the physical layer receives multiple available / pending transmission information from the higher layer; The priorities of multiple conflicting or overlapping resources are the same; The priorities of multiple conflicting or overlapping resources are the same, and the physical layer receives multiple available / pending transmission information from the higher layer.

7. The method according to claim 6, wherein, The available / pending transmission information includes at least one of the following: Medium Access Control (MAC) protocol data unit (PDU); Uplink scheduling request (SR); Acknowledgment (ACK) / Negative Acknowledgment (NACK) generation indication; ACK / NACK indication.

8. The method according to claim 1, wherein, The terminal device indicates the LBT failure to the higher layer according to the first principle, including: The physical layer of the terminal device indicates the LBT failure to the higher layer according to the first principle.

9. The method according to claim 1, wherein, The high layer includes a MAC layer.

10. The method according to claim 1, wherein the resource includes a resource configured or scheduled by a network device.

11. The method according to claim 10, further including: The terminal device receives configuration or indication of the resource, and the configuration or indication includes priority information of the resource.

12. The method according to claim 11, wherein, the priority information includes high priority or low priority.

13. The method according to claim 1, further including: The terminal device receives LBT detection mode indication information.

14. The method according to claim 13, wherein, the LBT detection mode indication information includes at least one of the following: Performing LBT detection for any one resource; Performing LBT detection for at least one specific resource; Performing LBT detection for a specific number of resources; Performing LBT detection for a specific resource; Performing LBT detection for all resources; Performing LBT detection according to the LBT detection mode indicated by the network.

15. The method according to claim 1, wherein, the resource includes at least one of the following: Dynamic grant DG; Configured grant CG; Physical uplink control channel PUCCH; Physical random access channel PRACH.

16. A terminal device, including: A detection module for performing listen-before-talk LBT detection on at least one resource; An indication module for, when the high layer indicates multiple transmittable resources to the physical layer to support the priority transmission of high-priority resources, resulting in resource conflict or overlap, indicating LBT failure to the high layer according to a first principle, the first principle including the following: If LBT detection is successful on at least some of the at least one resource, LBT failure is not reported to the high layer, the at least some resources do not include the high-priority resource, and data corresponding to the high-priority resource can be sent through other resources where LBT detection is successful; If LBT detection fails on at least some of the at least one resource, LBT failure is reported to the high layer, the at least some resources include the high-priority resource, and data corresponding to the high-priority resource cannot be sent through other resources where LBT detection is successful.

17. The terminal device according to claim 16, wherein, the count value of the reported LBT failure includes one of the following: the number of resources with LBT detection failure, the number of high-priority resources with LBT detection failure.

18. The terminal device according to claim 16, wherein, the first principle further includes: The reported LBT failure is reported for at least one of a bandwidth part BWP, a serving cell, and a resource.

19. The terminal device according to claim 18, wherein, the first principle further includes: When reporting LBT failure, carrying at least one of the following: the identifier of the BWP, the identifier of the serving cell, the identifier of the resource.

20. The terminal device according to claim 16, wherein, The indication module is used to indicate LBT failure to a higher layer according to a first principle when resources conflict or overlap and a first condition is met.

21. The terminal device according to claim 20, in, The first condition includes at least one of the following: The physical layer receives multiple available / to-be-transmitted information from higher layers; The physical layer determines that there are multiple resources that conflict or overlap; Multiple conflicting or overlapping resources have different priorities; Multiple conflicting or overlapping resources have different priorities, and the physical layer receives multiple available / to-be-transmitted information from higher layers; Multiple conflicting or overlapping resources have the same priority; Multiple conflicting or overlapping resources have the same priority, and the physical layer receives multiple available / to-be-transmitted information from higher layers.

22. The terminal device according to claim 21, in, The available / to-be-transmitted information includes at least one of the following: Media access control MAC protocol data unit PDU; Uplink scheduling request SR; Acknowledgement ACK / negative acknowledgement NACK generation indication; ACK / NACK indication.

23. The terminal device according to claim 16, in, The indication module is used to indicate the LBT failure to the upper layer according to the first principle using the physical layer of the terminal device.

24. The terminal device according to claim 16, in, The high layer includes the MAC layer.

25. The terminal device according to claim 16, wherein the resources include resources configured or scheduled by a network device.

26. The terminal device according to claim 25, further comprising: include: The first receiving module is used to receive the configuration or instruction of the resource, wherein the configuration or instruction includes the priority information of the resource.

27. The terminal device according to claim 26, in, The priority information includes high priority or low priority.

28. The terminal device according to claim 16, further comprising: include: The second receiving module is used to receive LBT detection mode indication information.

29. The terminal device according to claim 28, in, The LBT detection mode indication information includes at least one of the following: Perform LBT detection on any resource; Performing LBT detection on at least one specific resource; Perform LBT detection on a specific number of resources; Perform LBT detection on specific resources; Perform LBT detection on all resources; Perform LBT detection according to the LBT detection method instructed by the network.

30. The terminal device according to any one of claims 16 to 29, in, The resources include at least one of DG, CG, PUCCH and PRACH.

31. A terminal device, include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 15.

32. A chip, include: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 15.

33. A computer-readable storage medium for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 15.

34. A computer program product comprising computer program instructions that cause a computer to execute the method according to any one of claims 1 to 15.

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