IP Library Granted Patent US 11,647,410
Granted Patent B2
US 11,647,410 · App. 16/909,482 · Granted May 9, 2023

SMTC compliant search and measurement scheduling

Inventors: Jun Zhu (San Diego, CA); Yong Li (San Diego, CA); Raghu Narayan Challa (San Diego, CA)
Assignee: QUALCOMM Incorporated
H04W24/10
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Quick Facts
Patent No.
US 11,647,410
App. No.
16/909,482
Granted
May 9, 2023
Kind
B2
Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive synchronization signal block (SSB) measurement time configuration (SMTC) information that identifies a periodicity of a plurality of SSB measurement occasions. The UE may perform at least one of a radio resource management (RRM) operation or a beam management (BM) operation on a group of SSBs based at least in part on whether the plurality of SSB measurement occasions overlap all SSBs of the group of SSBs. Numerous other aspects are provided.

Claims (79)

1. A method of wireless communication performed by a user equipment (UE), comprising:

receiving synchronization signal block (SSB) measurement time configuration (SMTC) information that identifies a periodicity of a plurality of SSB measurement occasions,

wherein the plurality of SSB measurement occasions overlap all SSBs of a group of SSBs;

identifying one or more SSBs that are treated as non-overlapped with the plurality of SSB measurement occasions based at least in part on a scaling factor applied to the periodicity of the plurality of SSB measurement occasions;

performing a radio resource management (RRM) operation on one or more SSBs that are overlapped with the plurality of SSB measurement occasions;

performing a beam management (BM) operation on the one or more SSBs that are treated as non-overlapped with the plurality of SSB measurement occasions; and

receiving an SSB, of the group of SSBs, that is non-overlapped with the plurality of SSB measurement occasions using a physical downlink shared channel (PDSCH) beam on a serving cell of the UE.

2. The method of claim 1 , wherein the RRM operation is performed on a first SSB of the group of SSBs and the BM operation is performed on a second SSB of the group of SSBs.

3. The method of claim 1 , wherein the BM operation comprises a serving-cell-only beam sweeping operation.

4. The method of claim 1 ,

wherein the shared channel beam comprises a physical downlink shared channel beam; and

wherein the SSB is multiplexed with downlink traffic.

5. The method of claim 1 , wherein the SSB is associated with at least one of:

radio link monitoring (RLM),

beam failure detection (BFD), or

beam failure recovery (BFR).

6. The method of claim 1 , further comprising:

performing the BM operation outside of a connected-mode discontinuous reception (C-DRX) ON duration; and

performing a beam tracking operation during the C-DRX ON duration.

7. The method of claim 1 , wherein the group of SSBs are included in a synchronization signal burst set (SSBS).

8. The method of claim 1 , wherein the RRM operation comprises a neighbor cell search.

9. The method of claim 1 , wherein another SSB, of the group of SSBs, that overlaps an SSB measurement occasion, of the plurality of SSB measurement occasions, is not frequency division multiplexed with data traffic in the SSB measurement occasion.

10. A user equipment (UE) for wireless communication, comprising:

a memory; and

one or more processors coupled to the memory, the one or more processors configured to cause the UE to:

receive synchronization signal block (SSB) measurement time configuration (SMTC) information that identifies a periodicity of a plurality of SSB measurement occasions,

wherein the plurality of SSB measurement occasions overlap all SSBs of a group of SSBs;

identify one or more SSBs that are treated as non-overlapped with the plurality of SSB measurement occasions based at least in part on a scaling factor applied to the periodicity of the plurality of SSB measurement occasions;

perform a radio resource management (RRM) operation on one or more SSBs that are overlapped with the plurality of SSB measurement occasions;

perform a beam management (BM) operation on the one or more SSBs that are treated as non-overlapped with the plurality of SSB measurement occasions; and

receive an SSB, of the group of SSBs, that is non-overlapped with the plurality of SSB measurement occasions using a physical downlink shared channel (PDSCH) beam on a serving cell of the UE.

11. The UE of claim 10 , wherein the RRM operation is configured to be performed on a first SSB of the group of SSBs and the BM operation is configured to be performed on a second SSB of the group of SSBs.

12. The UE of claim 10 , wherein the BM operation comprises a serving-cell-only beam sweeping operation.

13. The UE of claim 10 ,

wherein the shared channel beam comprises a physical downlink shared channel beam; and

wherein the SSB is multiplexed with downlink traffic.

14. The UE of claim 10 , wherein the SSB is associated with at least one of:

radio link monitoring (RLM),

beam failure detection (BFD), or

beam failure recovery (BFR).

15. The UE of claim 10 , wherein the one or more processors are further configured to cause the UE to:

perform the BM operation outside of a connected-mode discontinuous reception (C-DRX) ON duration; and

perform a beam tracking operation during the C-DRX ON duration.

16. The UE of claim 10 , wherein the group of SSBs are included in a synchronization signal burst set (SSBS).

17. The UE of claim 10 , wherein the RRM operation comprises a neighbor cell search.

18. The UE of claim 10 , wherein another SSB, of the group of SSBs, that overlaps an SSB measurement occasion, of the plurality of SSB measurement occasions, is not frequency division multiplexed with data traffic in the SSB measurement occasion.

19. A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising:

one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the one or more processors to:

receive synchronization signal block (SSB) measurement time configuration (SMTC) information that identifies a periodicity of a plurality of SSB measurement occasions,

wherein the plurality of SSB measurement occasions overlap all SSBs of a group of SSBs;

identify one or more SSBs that are treated as non-overlapped with the plurality of SSB measurement occasions based at least in part on a scaling factor applied to the periodicity of the plurality of SSB measurement occasions;

perform a radio resource management (RRM) operation on one or more SSBs that are overlapped with the plurality of SSB measurement occasions;

perform a beam management (BM) operation on the one or more SSBs that are treated as non-overlapped with the plurality of SSB measurement occasions; and

receive an SSB, of the group of SSBs, that is non-overlapped with the plurality of SSB measurement occasions using a physical downlink shared channel (PDSCH) beam on a serving cell of the UE.

20. The non-transitory computer-readable medium of claim 19 , wherein the BM operation comprises a serving-cell-only beam sweeping operation.

21. The non-transitory computer-readable medium of claim 19 , wherein the shared channel beam comprises a physical downlink shared channel beam; and

wherein the SSB is multiplexed with downlink traffic.

22. The non-transitory computer-readable medium of claim 19 , wherein the RRM operation comprises a neighbor cell search.

23. The non-transitory computer-readable medium of claim 19 , wherein the SSB is associated with at least one of:

radio link monitoring (RLM),

beam failure detection (BFD), or

beam failure recovery (BFR).

24. The non-transitory computer-readable medium of claim 19 , wherein another SSB, of the group of SSBs, that overlaps an SSB measurement occasion, of the plurality of SSB measurement occasions, is not frequency division multiplexed with data traffic in the SSB measurement occasion.

25. An apparatus for wireless communication, comprising:

means for receiving synchronization signal block (SSB) measurement time configuration (SMTC) information that identifies a periodicity of a plurality of SSB measurement occasions,

wherein the plurality of SSB measurement occasions overlap all SSBs of a group of SSBs;

means for identifying one or more SSBs that are treated as non-overlapped with the plurality of SSB measurement occasions based at least in part on a scaling factor applied to the periodicity of the plurality of SSB measurement occasions;

means for performing a radio resource management (RRM) operation on one or more SSBs that are overlapped with the plurality of SSB measurement occasions;

means for performing a beam management (BM) operation on the one or more SSBs that are treated as non-overlapped with the plurality of SSB measurement occasions; and

means for receiving an SSB, of the group of SSBs, that is non-overlapped with the plurality of SSB measurement occasions using a physical downlink shared channel (PDSCH) beam on a serving cell of the apparatus.

26. The apparatus of claim 25 , wherein the BM operation comprises a serving-cell-only beam sweeping operation.

27. The apparatus of claim 25 , wherein the shared channel beam comprises a physical downlink shared channel beam; and

wherein the SSB is multiplexed with downlink traffic.

28. The apparatus of claim 25 , wherein the RRM operation comprises a neighbor cell search.

29. The apparatus of claim 25 , wherein the SSB is associated with at least one of:

radio link monitoring (RLM),

beam failure detection (BFD), or

beam failure recovery (BFR).

30. The apparatus of claim 25 , wherein another SSB, of the group of SSBs, that overlaps an SSB measurement occasion, of the plurality of SSB measurement occasions, is not frequency division multiplexed with data traffic in the SSB measurement occasion.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 26, 2021
From: ZHU, JUN; LI, YONG; CHALLA, RAGHU NARAYAN
To: QUALCOMM INCORPORATED
Reel/Frame 055736/0550 →
Continuity (2)
Provisional Application 62868444 · Jun 28, 2019
Related Publication 20200413276A1 · Dec 31, 2020