IP Library › Granted Patent US 12,335,850
Granted Patent B2
US 12,335,850 · App. 17/456,000 · Granted Jun 17, 2025

Full-duplex capability indication for cell selection

Inventors: Yan Zhou (San Diego, CA); Qian Zhang (Basking Ridge, NJ); Tao Luo (San Diego, CA)
Assignee: QUALCOMM Incorporated
H04W48/16H04L27/2607H04W24/10H04L5/14
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Quick Facts
Patent No.
US 12,335,850
App. No.
17/456,000
Granted
Jun 17, 2025
Kind
B2
Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive signaling that indicates full-duplexing capability information associated with one or more candidate cells. The UE may select, from the one or more candidate cells, a target cell based at least in part on the full-duplexing capability information associated with the one or more candidate cells. Numerous other aspects are described.

Claims (42)

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

receiving signaling that indicates full-duplexing capability information associated with a plurality of candidate cells, wherein the full-duplexing capability information indicates, for a candidate cell of the plurality of candidate cells that supports full-duplexing in a frequency division multiplexing (FDM) mode, information associated with a guard band between a downlink frequency allocation and an uplink frequency allocation, and wherein the guard band has a size that is based at least in part on a worst downlink and uplink beam pair that supports full-duplexing in the FDM mode in the candidate cell; and

selecting, from the plurality of candidate cells, a target cell based at least in part on the full-duplexing capability information associated with the plurality of candidate cells.

2. The method of claim 1 , wherein the signaling includes remaining minimum system information or one or more radio resource control messages.

3. The method of claim 1 , wherein the full-duplexing capability information indicates whether each candidate cell of the plurality of candidate cells are a full-duplex cell or a half-duplex cell.

4. The method of claim 1 , wherein the full-duplexing capability information indicates whether the candidate cell supports full-duplexing in a frequency division multiplexing mode or a spatial division multiplexing mode.

5. The method of claim 1 , wherein the full-duplexing capability information indicates, for the candidate cell, information related to one or more key performance indicators (KPIs).

6. The method of claim 5 , wherein the information related to the one or more KPIs includes statistics related to a downlink and uplink throughput, a packet delivery latency, a scheduling request completion latency, or a random access channel completion latency.

7. The method of claim 1 , wherein the full-duplexing capability information indicates historical performance metrics of the candidate cell.

8. The method of claim 1 , wherein the signaling includes timing information associated with the guard band size.

9. A method of wireless communication performed by a base station, comprising:

determining full-duplexing capability information associated with a plurality of candidate cells, wherein the full-duplexing capability information indicates, for a candidate cell of the plurality of candidate cells that supports full-duplexing in a frequency division multiplexing (FDM) mode, information associated with a guard band between a downlink frequency allocation and an uplink frequency allocation, and wherein the guard band has a size that is based at least in part on a worst downlink and uplink beam pair that supports full-duplexing in the FDM mode in the candidate cell; and

transmitting signaling that indicates the full-duplexing capability information associated with the plurality of candidate cells.

10. The method of claim 9 , wherein the signaling includes remaining minimum system information or one or more radio resource control messages.

11. The method of claim 9 , wherein the full-duplexing capability information indicates whether each candidate cell of the plurality of candidate cells are a full-duplex cell or a half-duplex cell.

12. The method of claim 9 , wherein the full-duplexing capability information indicates whether the candidate cell supports full-duplexing in a frequency division multiplexing mode or a spatial division multiplexing mode.

13. The method of claim 9 , wherein the full-duplexing capability information indicates, for the candidate cell, information related to one or more key performance indicators (KPIs).

14. The method of claim 13 , wherein the information related to the one or more KPIs includes statistics related to a downlink and uplink throughput, a packet delivery latency, a scheduling request completion latency, or a random access channel completion latency.

15. The method of claim 9 , wherein the full-duplexing capability information further includes an indication of power control settings for the candidate cells.

16. The method of claim 9 , wherein the signaling includes information corresponding to priority levels of the plurality of candidate cells.

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

one or more memories; and

one or more processors, coupled to the one or more memories, configured to:

receive signaling that indicates full-duplexing capability information associated with a plurality of candidate cells, wherein the full-duplexing capability information indicates, for a candidate cell of the plurality of candidate cells that supports full-duplexing in a frequency division multiplexing (FDM) mode, information associated with a guard band between a downlink frequency allocation and an uplink frequency allocation, and wherein the guard band has a size that is based at least in part on a worst downlink and uplink beam pair that supports full-duplexing in the FDM mode in the candidate cell; and

select, from the plurality of candidate cells, a target cell based at least in part on the full-duplexing capability information associated with the plurality of candidate cells.

18. The UE of claim 17 , wherein the signaling includes remaining minimum system information or one or more radio resource control messages.

19. The UE of claim 17 , wherein the full-duplexing capability information indicates whether each candidate cell of the plurality of candidate cells are a full-duplex cell or a half-duplex cell.

20. The UE of claim 17 , wherein the full-duplexing capability information indicates whether the candidate cell supports full-duplexing in a frequency division multiplexing mode or a spatial division multiplexing mode.

21. The UE of claim 17 , wherein the full-duplexing capability information indicates, for a candidate cell of the plurality of candidate cells that supports full-duplexing, information related to one or more key performance indicators (KPIs).

22. The UE of claim 17 , wherein the full-duplexing capability information indicates historical performance metrics of the candidate cell.

23. The UE of claim 17 , wherein the signaling includes timing information associated with the guard band size.

24. A base station for wireless communication, comprising:

one or more memories; and

one or more processors, coupled to the one or more memories, configured to:

determine full-duplexing capability information associated with a plurality of candidate cells, wherein the full-duplexing capability information indicates, for a candidate cell of the plurality of candidate cells that supports full-duplexing in a frequency division multiplexing (FDM) mode, information associated with a guard band between a downlink frequency allocation and an uplink frequency allocation, and wherein the guard band has a size that is based at least in part on a worst downlink and uplink beam pair that supports full-duplexing in the FDM mode in the candidate cell; and

transmit signaling that indicates the full-duplexing capability information associated with the plurality of candidate cells.

25. The base station of claim 24 , wherein the signaling includes remaining minimum system information or one or more radio resource control messages.

26. The base station of claim 24 , wherein the full-duplexing capability information indicates whether each candidate cell of the plurality of candidate cells are a full-duplex cell or a half-duplex cell.

27. The base station of claim 24 , wherein the full-duplexing capability information indicates whether the candidate cell supports full-duplexing in a frequency division multiplexing mode or a spatial division multiplexing mode.

28. The base station of claim 24 , wherein the full-duplexing capability information indicates, for a candidate cell of the plurality of candidate cells that supports full-duplexing, information related to one or more key performance indicators (KPIs).

29. The base station of claim 24 , wherein the full-duplexing capability information further includes an indication of power control settings for the candidate cells.

30. The base station of claim 24 , wherein the signaling includes information corresponding to priority levels of the plurality of candidate cells.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 27, 2021
From: ZHOU, YAN; ZHANG, QIAN; LUO, TAO
To: QUALCOMM INCORPORATED
Reel/Frame 058479/0109 →
Continuity (1)
Related Publication 20230164674A1 · May 25, 2023
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