IP Library Granted Patent US 11,627,476
Granted Patent B2
US 11,627,476 · App. 17/305,779 · Granted Apr 11, 2023

Determining beam tracking frequencies using signal-to-noise ratios associated with user equipments

Inventors: Jun Zhu (San Diego, CA); Yong Li (San Diego, CA); Raghu Narayan Challa (San Diego, CA); Alexei Yurievitch Gorokhov (San Diego, CA)
Assignee: QUALCOMM Incorporated
H04W16/28H04B17/336H04W72/1263
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Quick Facts
Patent No.
US 11,627,476
App. No.
17/305,779
Granted
Apr 11, 2023
Kind
B2
Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect a signal-to-noise ratio (SNR) associated with the UE. The UE may determine a beam tracking frequency based at least in part on the SNR. The UE may perform a beam tracking in accordance with the beam tracking frequency. Numerous other aspects are described.

Claims (63)

1. An apparatus for wireless communication at a user equipment (UE), comprising:

a memory; and

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

detect a signal-to-noise ratio (SNR) associated with the UE;

access a lookup table, of a plurality of lookup tables, associated with a SNR range that includes the SNR associated with the UE;

determine, from the lookup table, a downsampling multiplier associated with a beam panic mode and a ratio of UE beam dwell time to a quantity of beams pending for scheduling;

determine a beam tracking frequency based at least in part on the downsampling multiplier and a nominal time period; and

perform a beam tracking in accordance with the beam tracking frequency.

2. The apparatus of claim 1 , wherein the plurality of lookup tables correspond to different SNR ranges, wherein each lookup table of the plurality of lookup tables indicates a plurality of beam panic modes, a plurality of corresponding ratios of UE beam dwell times to quantities of beams pending for scheduling, and a plurality of corresponding downsampling multipliers.

3. The apparatus of claim 1 , wherein the beam tracking frequency is based at least in part on a beam panic mode associated with the UE, and wherein the beam panic mode is associated with a ratio of UE beam dwell time to a quantity of beams pending for scheduling.

4. The apparatus of claim 1 , wherein a lower beam tracking frequency is associated with an SNR associated with power saving, and wherein a higher beam tracking frequency is associated with an SNR associated with maintaining a radio link.

5. The apparatus of claim 1 , wherein the one or more processors are further configured to:

select a beam based at least in part on the beam tracking; and

transmit, to a base station, an uplink transmission using the beam.

6. The apparatus of claim 1 , wherein the SNR corresponds to a serving beam associated with the UE.

7. The apparatus of claim 1 , wherein the UE is configured for connected mode discontinuous reception.

8. The apparatus of claim 1 , wherein the one or more processors, to determine the beam tracking frequency, are further configured to:

determine the beam tracking frequency based at least in part on a result of multiplying the nominal time period by the downsampling multiplier.

9. The apparatus of claim 1 , wherein the nominal time period is based at least in part on a synchronization signal block measurement timing configuration or a physical broadcast channel block measurement timing configuration, or a combination thereof.

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

detecting a signal-to-noise ratio (SNR) associated with the UE;

accessing a lookup table, of a plurality of lookup tables, associated with a SNR range that includes the SNR associated with the UE;

determining, from the lookup table, a downsampling multiplier associated with a beam panic mode and a ratio of UE beam dwell time to a quantity of beams pending for scheduling;

determining a beam tracking frequency based at least in part on the downsampling multiplier and a nominal time period; and

performing a beam tracking in accordance with the beam tracking frequency.

11. The method of claim 10 , wherein the plurality of lookup tables correspond to different SNR ranges, wherein each lookup table of the plurality of lookup tables indicates a plurality of beam panic modes, a plurality of corresponding ratios of UE beam dwell times to quantities of beams pending for scheduling, and a plurality of corresponding downsampling multipliers.

12. The method of claim 10 , wherein the beam tracking frequency is based at least in part on a beam panic mode associated with the UE, and wherein the beam panic mode is associated with a ratio of UE beam dwell time to a quantity of beams pending for scheduling.

13. The method of claim 10 , wherein a lower beam tracking frequency is associated with an SNR associated with power saving, and wherein a higher beam tracking frequency is associated with an SNR associated with maintaining a radio link.

14. The method of claim 10 , further comprising:

selecting a beam based at least in part on the beam tracking; and

transmitting, to a base station, an uplink transmission using the beam.

15. The method of claim 10 , wherein the SNR corresponds to a serving beam associated with the UE.

16. The method of claim 10 , wherein the UE is configured for connected mode discontinuous reception.

17. The method of claim 10 , wherein determining the beam tracking frequency comprises:

determining the beam tracking frequency based at least in part on a result of multiplying the nominal time period by the downsampling multiplier.

18. The method of claim 10 , wherein the nominal time period is based at least in part on a synchronization signal block measurement timing configuration or a physical broadcast channel block measurement timing configuration, or a combination thereof.

19. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:

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

detect a signal-to-noise ratio (SNR) associated with the UE;

access a lookup table, of a plurality of lookup tables, associated with a SNR range that includes the SNR associated with the UE;

determine, from the lookup table, a downsampling multiplier associated with a beam panic mode and a ratio of UE beam dwell time to a quantity of beams pending for scheduling;

determine a beam tracking frequency based at least in part on the downsampling multiplier and a nominal time period; and

perform a beam tracking in accordance with the beam tracking frequency.

20. The non-transitory computer-readable medium of claim 19 , wherein the plurality of lookup tables correspond to different SNR ranges, wherein each lookup table of the plurality of lookup tables indicates a plurality of beam panic modes, a plurality of corresponding ratios of UE beam dwell times to quantities of beams pending for scheduling, and a plurality of corresponding downsampling multipliers.

21. The non-transitory computer-readable medium of claim 19 , wherein the beam tracking frequency is based at least in part on a beam panic mode associated with the UE, and wherein the beam panic mode is associated with a ratio of UE beam dwell time to a quantity of beams pending for scheduling.

22. The non-transitory computer-readable medium of claim 19 , wherein a lower beam tracking frequency is associated with an SNR associated with power saving, and wherein a higher beam tracking frequency is associated with an SNR associated with maintaining a radio link.

23. The non-transitory computer-readable medium of claim 19 , wherein the one or more instructions further cause the UE to:

select a beam based at least in part on the beam tracking; and

transmit, to a base station, an uplink transmission using the beam.

24. The non-transitory computer-readable medium of claim 19 , wherein the SNR corresponds to a serving beam associated with the UE, and wherein the UE is configured for connected mode discontinuous reception.

25. An apparatus for wireless communication, comprising:

means for detecting a signal-to-noise ratio (SNR) associated with the apparatus;

means for accessing a lookup table, of a plurality of lookup tables, associated with a SNR range that includes the SNR associated with the apparatus;

means for determining, from the lookup table, a downsampling multiplier associated with a beam panic mode and a ratio of apparatus beam dwell time to a quantity of beams pending for scheduling;

means for determining a beam tracking frequency based at least in part on the downsampling multiplier and a nominal time period; and

means for performing a beam tracking in accordance with the beam tracking frequency.

26. The apparatus of claim 25 , wherein the plurality of lookup tables correspond to different SNR ranges, wherein each lookup table of the plurality of lookup tables indicates a plurality of beam panic modes, a plurality of corresponding ratios of apparatus beam dwell times to quantities of beams pending for scheduling, and a plurality of corresponding downsampling multipliers.

27. The apparatus of claim 25 , wherein the beam tracking frequency is based at least in part on a beam panic mode associated with the apparatus, and wherein the beam panic mode is associated with a ratio of apparatus beam dwell time to a quantity of beams pending for scheduling.

28. The apparatus of claim 25 , wherein a lower beam tracking frequency is associated with an SNR associated with power saving, and wherein a higher beam tracking frequency is associated with an SNR associated with maintaining a radio link.

29. The apparatus of claim 25 , further comprising:

means for selecting a beam based at least in part on the beam tracking; and

means for transmitting, to a base station, an uplink transmission using the beam.

30. The apparatus of claim 25 , wherein the SNR corresponds to a serving beam associated with the apparatus, and wherein the apparatus is configured for connected mode discontinuous reception.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 6, 2021
From: ZHU, JUN; LI, YONG; CHALLA, RAGHU NARAYAN; GOROKHOV, ALEXEI YURIEVITCH
To: QUALCOMM INCORPORATED
Reel/Frame 057107/0778 →
Continuity (1)
Related Publication 20230019061A1 · Jan 19, 2023
Cited By (1)
US 12,389,340