Granted Patent B2

US 12,348,360 · App. 17/901,932 · Granted Jul 1, 2025

Inventors: Hua Zhou (Vienna, VA); Esmael Hejazi Dinan (McLean, VA); Ali Cagatay Cirik (Chantilly, VA); Hyoungsuk Jeon (Centreville, VA); Alireza Babaei (Fairfax, VA)

Assignee: Ofinno, LLC

H04L41/0668H04B7/06H04L5/0048H04W24/08H04W56/001H04W76/27

Abstract

Claims (45)

1. A method comprising:

triggering, by a wireless device, a beam failure recovery (BFR) procedure;

assessing, based on a threshold, a radio link quality of each of a plurality of reference signals (RSs) to detect a candidate beam for the BFR procedure;

transmitting, to a base station, a message comprising an indication indicating that the candidate beam is not available, during a time that a beam failure recovery timer is running, wherein the indication is based on each of the plurality of RSs having a respective radio link quality assessed to be below the threshold; and

completing the BFR procedure after the transmitting the indication.

2. The method of claim 1 , wherein the plurality of RSs comprises at least one of:

one or more CSI-RSs; or

one or more synchronization signal blocks (SSBs).

3. The method of claim 1 , wherein the radio link quality of each of the plurality of RSs comprises a value of reference signal received power (RSRP) of each of the plurality of RSs.

4. The method of claim 1 , further comprising:

receiving one or more radio resource control (RRC) messages comprising BFR configuration parameters comprising the threshold.

5. The method of claim 1 , wherein the BFR is triggered in response to detecting a number of beam failure instances based on a second plurality of reference signals.

6. The method of claim 1 , further comprising:

starting, for the BFR procedure, a beam failure recovery timer with a timer value.

7. The method of claim 6 , wherein the assessing is during the beam failure recovery timer being running.

8. The method of claim 1 , wherein the indication is transmitted in one or more radio resource control (RRC) messages.

9. A wireless device comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, further cause the wireless device to:

trigger a beam failure recovery (BFR) procedure;

assess, based on a threshold, a radio link quality of each of a plurality of reference signals (RSs) to detect a candidate beam for the BFR procedure;

transmit, to a base station, a message comprising an indication indicating that the candidate beam is not available, during a time that a beam failure recovery timer is running, wherein the indication is based on each of the plurality of RSs having a respective radio link quality assessed to be below the threshold; and

complete the BFR procedure after the transmitting the indication.

10. The wireless device of claim 9 , wherein the plurality of RSs comprises at least one of:

one or more CSI-RSs; or

one or more synchronization signal blocks (SSBs).

11. The wireless device of claim 9 , wherein the radio link quality of each of the plurality of RSs comprises a value of reference signal received power (RSRP) of each of the plurality of RSs.

12. The wireless device of claim 9 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to:

receive one or more radio resource control (RRC) messages comprising BFR configuration parameters comprising the threshold.

13. The wireless device of claim 9 , wherein the BFR is triggered in response to detecting a number of beam failure instances based on a second plurality of reference signals.

14. The wireless device of claim 9 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to:

start, for the BFR procedure, a beam failure recovery timer with a timer value.

15. The wireless device of claim 14 , wherein the assessing is during the beam failure recovery timer being running.

16. The wireless device of claim 9 , wherein the indication is transmitted in one or more radio resource control (RRC) messages.

17. A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a wireless device, cause the wireless device to:

trigger a beam failure recovery (BFR) procedure;

assess, based on a threshold, a radio link quality of each of a plurality of reference signals (RSs) to detect a candidate beam for the BFR procedure;

transmit, to a base station, a message comprising an indication indicating that the candidate beam is not available, during a time that a beam failure recovery timer is running, wherein the indication is based on each of the plurality of RSs having a respective radio link quality assessed to be below the threshold; and

complete the BFR procedure after the transmitting the indication.

18. The non-transitory computer-readable medium of claim 17 , wherein the plurality of RSs comprises at least one of:

one or more CSI-RSs; or

one or more synchronization signal blocks (SSBs).

19. The non-transitory computer-readable medium of claim 17 , wherein the radio link quality of each of the plurality of RSs comprises a value of reference signal received power (RSRP) of each of the plurality of RSs.

20. The non-transitory computer-readable medium of claim 17 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to:

receive one or more radio resource control (RRC) messages comprising BFR configuration parameters comprising the threshold.

Assignments (1)

Continuity (4)

References Cited (192)