IP Library › Granted Patent US 12,034,511

Granted Patent B2

US 12,034,511 · App. 17/368,501 · Granted Jul 9, 2024

Prioritization in beam failure recovery procedures

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

Assignee: Comcast Cable Communications, LLC

H04B7/0695 H04L1/0026 H04L1/1819 H04L5/005 H04L5/0055 H04W72/046 H04W72/23 H04W74/0833 H04W76/27 H04W80/02

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Quick Facts

Patent No.: US 12,034,511
App. No.: 17/368,501
Granted: Jul 9, 2024
Kind: B2

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Abstract

Beam failure recovery (BFR) procedures are described for wireless communications. At least one transmission for BFR may overlap with a scheduled transmission. A wireless device may prioritize the at least one transmission for BFR, for example, over the scheduled transmission and may transmit the at least one transmission for BFR.

Claims (132)

1. A method comprising:

determining, by a wireless device, a beam failure; and

performing a first physical uplink control channel (PUCCH) transmission comprising a request for beam failure recovery based on:

a determination that the first PUCCH transmission comprises the request for beam failure recovery;

the first PUCCH transmission, comprising the request for beam failure recovery, being prioritized higher than a second PUCCH transmission, wherein the first PUCCH transmission and the second PUCCH transmission are in a transmission occasion; and

a combined transmission power, comprising a first transmission power for the first PUCCH transmission and a second transmission power for the second PUCCH transmission, exceeding an allowed transmission power.

2. The method of claim 1 , further comprising:

based on a determination that a third PUCCH transmission overlaps with a physical uplink shared channel (PUSCH) transmission, and based on the third PUCCH transmission not being associated with beam failure recovery:

determining that the PUSCH transmission is prioritized over the third PUCCH transmission; and

dropping the third PUCCH transmission.

3. The method of claim 1 , further comprising:

based on a determination that the second PUCCH transmission overlaps with a physical uplink shared channel (PUSCH) transmission in the transmission occasion, and based on the second PUCCH transmission comprising channel state information that is not associated with beam failure recovery:

determining that the second PUCCH transmission is prioritized over the PUSCH transmission; and

performing the second PUCCH transmission.

4. The method of claim 1 , further comprising receiving one or more configuration parameters indicating:

one or more first reference signals (RSs);

one or more second RSs;

an association between the one or more second RSs and one or more PUCCH resources; and

radio resources of a dedicated control resource set (CORESET).

5. The method of claim 4 , further comprising selecting an RS, from the one or more second RSs, for beam failure recovery, wherein:

the selected RS is associated with a first PUCCH resource for transmitting the request for beam failure recovery; and

the first PUCCH resource comprises at least one channel resource.

6. The method of claim 1 , further comprising:

based on a determination that a third PUCCH transmission comprising a second request for beam failure recovery overlaps with a physical uplink shared channel (PUSCH) transmission:

suspending the PUSCH transmission at least until a beam failure recovery procedure is successfully completed.

7. The method of claim 6 , further comprising:

performing, after a determination that the beam failure recovery procedure is successfully completed, the PUSCH transmission.

8. The method of claim 1 , further comprising:

dropping the second PUCCH transmission, wherein the dropping is based on a determination that:

the first PUCCH transmission and the second PUCCH transmission are in the transmission occasion;

the first PUCCH transmission that comprises the request for beam failure recovery is prioritized over the second PUCCH transmission; and

the combined transmission power, comprising the first transmission power for the first PUCCH transmission and the second transmission power for the second PUCCH transmission, exceeds the allowed transmission power.

9. The method of claim 1 , further comprising:

performing, using a reduced transmission power, the second PUCCH transmission, wherein the performing the second PUCCH transmission is based on a determination that:

the first PUCCH transmission and the second PUCCH transmission are in the transmission occasion;

the first PUCCH transmission that comprises the request for beam failure recovery is prioritized over the second PUCCH transmission; and

10. The method of claim 1 , further comprising:

initiating, based on the determined beam failure, a beam failure recovery procedure,

wherein the request for beam failure recovery comprises a scheduling request (SR) for beam failure recovery.

11. The method of claim 1 , wherein:

the transmission occasion comprises a plurality of symbols corresponding to a transmission period;

the first PUCCH transmission is associated with at least one first symbol of the transmission period; and

the second PUCCH transmission is associated with at least one second symbol of the transmission period.

12. The method of claim 1 , wherein the first PUCCH transmission at least partially overlaps in time with the second PUCCH transmission.

13. A wireless device comprising:

one or more processors; and

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

determine a beam failure; and

perform a first physical uplink control channel (PUCCH) transmission comprising a request for beam failure recovery based on:

a determination that the first PUCCH transmission comprises the request for beam failure recovery;

14. The wireless device of claim 13 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

determine that the PUSCH transmission is prioritized over the third PUCCH transmission; and

drop the third PUCCH transmission.

15. The wireless device of claim 13 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

determine that the second PUCCH transmission is prioritized over the PUSCH transmission; and

perform the second PUCCH transmission.

16. The wireless device of claim 13 , wherein the instructions, when executed by the one or more processors, cause the wireless device to receive one or more configuration parameters indicating:

one or more first reference signals (RSs);

one or more second RSs;

an association between the one or more second RSs and one or more PUCCH resources; and

radio resources of a dedicated control resource set (CORESET).

17. The wireless device of claim 16 , wherein the instructions, when executed by the one or more processors, cause the wireless device to select an RS, from the one or more second RSs, for beam failure recovery, and wherein:

the selected RS is associated with a first PUCCH resource for transmitting the request for beam failure recovery; and

the first PUCCH resource comprises at least one channel resource.

18. The wireless device of claim 13 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:

based on a determination that a third PUCCH transmission comprising a second request for beam failure recovery overlaps with a physical uplink shared channel (PUSCH) transmission:

suspend the PUSCH transmission at least until a beam failure recovery procedure is successfully completed.

19. The wireless device of claim 18 , wherein the instructions, when executed by the one or more processors, cause the wireless device to perform, after a determination that the beam failure recovery procedure is successfully completed, the PUSCH transmission.

20. The wireless device of claim 13 , wherein the instructions, when executed by the one or more processors, cause the wireless device to drop the second PUCCH transmission based on a determination that:

the first PUCCH transmission and the second PUCCH transmission are in the transmission occasion;

the first PUCCH transmission that comprises the request for beam failure recovery is prioritized over the second PUCCH transmission; and

21. The wireless device of claim 13 , wherein the instructions, when executed by the one or more processors, cause the wireless device to perform, using a reduced transmission power, the second PUCCH transmission based on a determination that:

the first PUCCH transmission and the second PUCCH transmission are in the transmission occasion;

the first PUCCH transmission that comprises the request for beam failure recovery is prioritized over the second PUCCH transmission; and

22. The wireless device of claim 13 , wherein the instructions, when executed by the one or more processors, cause the wireless device to initiate, based on the determined beam failure, a beam failure recovery procedure, and

wherein the request for beam failure recovery comprises a scheduling request (SR) for beam failure recovery.

23. The wireless device of claim 13 , wherein:

the transmission occasion comprises a plurality of symbols corresponding to a transmission period;

the first PUCCH transmission is associated with at least one first symbol of the transmission period; and

the second PUCCH transmission is associated with at least one second symbol of the transmission period.

24. The wireless device of claim 13 , wherein the first PUCCH transmission at least partially overlaps in time with the second PUCCH transmission.

25. A system comprising:

a base station configured to receive a plurality of physical uplink control channel (PUCCH) transmissions; and

a wireless device,

wherein the wireless device is configured to:

determine a beam failure; and

perform a first PUCCH transmission comprising a request for beam failure recovery based on:

a determination that the first PUCCH transmission comprises the request for beam failure recovery;

26. The system of claim 25 , wherein the wireless device is further configured to:

determine that the PUSCH transmission is prioritized over the third PUCCH transmission; and

drop the third PUCCH transmission.

27. The system of claim 25 , wherein the wireless device is further configured to:

determine that the second PUCCH transmission is prioritized over the PUSCH transmission; and

perform the second PUCCH transmission.

28. The system of claim 25 , wherein the base station is configured to transmit one or more configuration parameters indicating:

one or more first reference signals (RSs);

one or more second RSs;

an association between the one or more second RSs and one or more PUCCH resources; and

radio resources of a dedicated control resource set (CORESET).

29. The system of claim 28 , wherein the wireless device is further configured to select an RS, from the one or more second RSs, for beam failure recovery, and wherein:

the selected RS is associated with a first PUCCH resource for transmitting the request for beam failure recovery; and

the first PUCCH resource comprises at least one channel resource.

30. The system of claim 25 , wherein the wireless device is further configured to:

based on a determination that a third PUCCH transmission comprising a second request for beam failure recovery overlaps with a physical uplink shared channel (PUSCH) transmission:

suspend the PUSCH transmission at least until a beam failure recovery procedure is successfully completed.

31. The system of claim 30 , wherein the wireless device is further configured to perform, after a determination that the beam failure recovery procedure is successfully completed, the PUSCH transmission.

32. The system of claim 25 , wherein the wireless device is further configured to drop the second PUCCH transmission based on a determination that:

the first PUCCH transmission and the second PUCCH transmission are in the transmission occasion;

the first PUCCH transmission that comprises the request for beam failure recovery is prioritized over the second PUCCH transmission; and

33. The system of claim 25 , wherein the wireless device is further configured to perform, using a reduced transmission power, the second PUCCH transmission based on a determination that:

the first PUCCH transmission and the second PUCCH transmission are in the transmission occasion;

the first PUCCH transmission that comprises the request for beam failure recovery is prioritized over the second PUCCH transmission; and

34. The system of claim 25 , wherein the wireless device is further configured to initiate, based on the determined beam failure, a beam failure recovery procedure, and

wherein the request for beam failure recovery comprises a scheduling request (SR) for beam failure recovery.

35. The system of claim 25 , wherein:

the transmission occasion comprises a plurality of symbols corresponding to a transmission period;

the first PUCCH transmission is associated with at least one first symbol of the transmission period; and

the second PUCCH transmission is associated with at least one second symbol of the transmission period.

36. The system of claim 25 , wherein the first PUCCH transmission at least partially overlaps in time with the second PUCCH transmission.

Assignments (2)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 28, 2022

From: CIRIK, ALI; DINAN, ESMAEL; ZHOU, HUA; JEON, HYOUNGSUK; BABAEI, ALIREZA

To: COMCAST CABLE COMMUNICATIONS, LLC

Reel/Frame 060339/0397 →

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 28, 2022

From: CIRIK, ALI; DINAN, ESMAEL HEJAZI; ZHOU, HUA; JEON, HYOUNGSUK; BABAEI, ALIREZA

To: COMCAST CABLE COMMUNICATIONS, LLC

Reel/Frame 060339/0427 →

Continuity (3)

Continuation 16409103 · May 10, 2019

Provisional Application 62669473 · May 10, 2018

Related Publication 20210336685A1 · Oct 28, 2021

Cited By (2)

US 12,245,217 US 12,256,414