Energy-efficient beam selection

Patent metadata

Field	Value
Publication number	US-12438595-B2
Application number	US-202318540425-A
Country	US
Kind code	B2
Filing date	Dec 14, 2023
Priority date	May 25, 2022
Publication date	Oct 7, 2025
Grant date	Oct 7, 2025

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify, for each of one or more candidate beams in a set of candidate beams, a downlink throughput, an uplink throughput, a downlink power consumption, and an uplink power consumption. The UE may select a beam based at least in part on: at least one of the downlink throughput or the uplink throughput, at least one of the downlink power consumption or the uplink power consumption, and one or more throughput thresholds. The UE may communicate using the selected beam. Numerous other aspects are described.

First claim

What is claimed is:

1. A method of wireless communication performed by a user equipment (UE), comprising:
identifying, for at least one or more candidate beams, indications of a downlink throughput, an uplink throughput, a downlink power consumption, and an uplink power consumption;
selecting, from the one or more candidate beams, a first beam for receiving downlink data and a second beam for transmitting uplink data based at least in part on:
a ratio of the downlink throughput and the downlink power consumption, and
a ratio of the uplink throughput and the uplink power consumption; and

communicating using the first beam and the second beam,
wherein the first beam and the second beam are different.

2. The method of claim 1 , wherein selecting the first beam and the second beam is further based at least in part on maximizing at least one of:
the ratio of the downlink throughput and the downlink power consumption, scaled using a weighting factor, or
the ratio of the uplink throughput and the uplink power consumption, scaled using the weighting factor.

3. The method of claim 1 , wherein selecting the first beam and the second beam is further based at least in part on a throughput threshold that is based at least in part on an application layer throughput requirement.

4. The method of claim 1 , wherein the downlink throughput and the uplink throughput comprise real-time throughput values.

5. The method of claim 1 , wherein the downlink throughput and the uplink throughput comprise estimated throughput values.

6. The method of claim 5 , wherein an estimated throughput value, of the estimated throughput values, is based at least in part on at least one of:
a number of activated carriers,
a downlink and uplink duty cycle,
a number of resource blocks, or
an estimated spectral efficiency.

7. The method of claim 1 , wherein the downlink power consumption and the uplink power consumption are based at least in part on historical power consumption associated with the one or more candidate beams.

8. The method of claim 1 , wherein selecting the first beam and the second beam is further based at least in part on a downlink throughput threshold and an uplink throughput threshold.

9. The method of claim 1 , wherein selecting the first beam and the second beam is further based at least in part on a weighting factor that indicates a weight assigned to a downlink relative to an uplink.

10. 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 cause the UE to:
identify, for at least one or more candidate beams, indications of a downlink throughput, an uplink throughput, a downlink power consumption, and an uplink power consumption;
select, from the one or more candidate beams, a first beam for receiving downlink data and a second beam for transmitting uplink data based at least in part on:
a ratio of the downlink throughput and the downlink power consumption, and
a ratio of the uplink throughput and the uplink power consumption; and

communicate using the first beam and the second beam,
wherein the first beam and the second beam are different.

11. The UE of claim 10 , wherein selecting the first beam and the second beam is further based at least in part on maximizing at least one of:
the ratio of the downlink throughput and the downlink power consumption, scaled by a weighting factor, or
the ratio of the uplink throughput and the uplink power consumption, scaled by the weighting factor.

12. The UE of claim 10 , wherein the one or more processors, to select the first beam and the second beam, are further configured to cause the UE to select the first beam and the second beam further based at least in part on a throughput threshold that is based at least in part on an application layer throughput requirement.

13. The UE of claim 10 , wherein the downlink throughput and the uplink throughput comprise real-time throughput values.

14. The UE of claim 10 , wherein the downlink throughput and the uplink throughput comprise estimated throughput values.

15. The UE of claim 14 , wherein an estimated throughput value, of the estimated throughput values, is based at least in part on at least one of:
a number of activated carriers,
a downlink and uplink duty cycle,
a number of resource blocks, or
an estimated spectral efficiency.

16. The UE of claim 10 , wherein the downlink power consumption and the uplink power consumption are based at least in part on historical power consumption associated with the one or more candidate beams.

17. The UE of claim 10 , wherein the one or more processors, to select the first beam and the second beam, are further configured to cause the UE to select the first beam and the second beam further based at least in part on a downlink throughput threshold and an uplink throughput threshold.

18. The UE of claim 10 , wherein the one or more processors, to select the first beam and the second beam, are further configured to cause the UE to select the first beam and the second beam further based at least in part on a weighting factor that indicates a weight assigned to a downlink relative to an uplink.

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:
identify, for at least one or more candidate beams, indications of a downlink throughput, an uplink throughput, a downlink power consumption, and an uplink power consumption;
select, from the one or more candidate beams, a first beam for receiving downlink data and a second beam for transmitting uplink data based at least in part on:
a ratio of the downlink throughput and the downlink power consumption, and
a ratio of the uplink throughput and the uplink power consumption; and

communicate using the first beam and the second beam,
wherein the first beam and the second beam are different.

20. The non-transitory computer-readable medium of claim 19 , wherein selecting the first beam and the second beam is further based at least in part on maximizing at least one of:
the ratio of the downlink throughput and the downlink power consumption, scaled by a weighting factor, or
the ratio of the uplink throughput and the uplink power consumption, scaled by the weighting factor.

21. The non-transitory computer-readable medium of claim 19 , wherein the one or more instructions, that cause the UE to select the first beam and the second beam, cause the UE to select the first beam and the second beam further based at least in part on a throughput threshold that is based at least in part on an application layer throughput requirement.

22. The non-transitory computer-readable medium of claim 19 , wherein the downlink throughput and the uplink throughput comprise real-time throughput values.

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

24. The non-transitory computer-readable medium of claim 23 , wherein an estimated throughput value, of the estimated throughput values, is based at least in part on at least one of:
a number of activated carriers,
a downlink and uplink duty cycle,
a number of resource blocks, or
an estimated spectral efficiency.

Assignees

• Qualcomm Inc

Inventors

• Zhu Jun
• Laghate Mihir Vijay
• Challa Raghu Narayan
• Banister Brian Clarke

Classifications

• H04W16/28

  using beam steering · CPC title

• H04L43/0888

  Throughput · CPC title

• H04W52/0229

  where the received signal is a wanted signal · CPC title

• H04B7/088 Primary

  using beam selection · CPC title

• H04B7/06952 Primary

  Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping · CPC title