Techniques for measurement reporting and transmit power allocation in power-constrained environment

Patent metadata

Field	Value
Publication number	US-11917461-B2
Application number	US-202117451767-A
Country	US
Kind code	B2
Filing date	Oct 21, 2021
Priority date	Oct 22, 2020
Publication date	Feb 27, 2024
Grant date	Feb 27, 2024

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify, while camped on a first cell associated with a first radio access technology (RAT), a power management level for a communication using a second RAT, wherein the power management level indicates an available power for the communication using the second RAT, and wherein the available power is based at least in part on an exposure rate or an absorption rate. The UE may delay a transmission of a measurement report on the first cell based at least in part on the identification of the power management level. Numerous other aspects are provided.

First claim

What is claimed is:

1. An apparatus for wireless communication at a user equipment (UE), comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to:
identify, while camped on a first cell associated with a first radio access technology (RAT), a power management level for a communication using a second RAT, wherein the power management level indicates an available power for the communication using the second RAT, and wherein the available power is based at least in part on an exposure rate or an absorption rate; and
delay a transmission of a measurement report on the first cell based at least in part on the identification of the power management level, wherein:
the power management level is based at least in part on the measurement report being associated with a frequency, and
the frequency is associated with at least one of a dual-connectivity cell addition, a handover to a standalone cell, or a redirection to the standalone cell.

2. The apparatus of claim 1 , wherein the power management level fails to satisfy a threshold, and wherein the transmission is delayed based at least in part on the power management level failing to satisfy the threshold.

3. The apparatus of claim 2 , wherein the threshold is associated with a communication type of the communication using the second RAT.

4. The apparatus of claim 2 , wherein the threshold is associated with maintaining a minimum target data rate associated with the second RAT.

5. The apparatus of claim 1 , wherein the communication using the second RAT is a random access channel (RACH) communication.

6. The apparatus of claim 1 , wherein the communication using the second RAT is associated with an uplink shared channel or an uplink control channel.

7. The apparatus of claim 1 , wherein the available power is a residual available power remaining after power has been allocated from a full compliance power budget for a communication using the first RAT.

8. The apparatus of claim 1 , wherein the one or more processors are further configured to:
determine that a threshold associated with the power management level is satisfied; and
resume transmission of the measurement report based at least in part on the threshold being satisfied.

9. The apparatus of claim 1 , wherein the one or more processors are further configured to:
determine whether the frequency is associated with the dual-connectivity cell addition, the handover to the standalone cell, or the redirection to the standalone cell based at least in part on the frequency being in a frequency range that the UE does not support for a primary cell.

10. The apparatus of claim 9 , wherein the frequency range is a millimeter wave frequency range.

11. The apparatus of claim 1 , wherein the one or more processors are further configured to:
determine whether the frequency is associated with the dual-connectivity cell addition, the handover to the standalone cell, or the redirection to the standalone cell based at least in part on whether the measurement report is associated with a location where a standalone mode associated with the second RAT is not deployed.

12. The apparatus of claim 1 , wherein the one or more processors are further configured to:
determine whether the frequency is associated with the dual-connectivity cell addition, the handover to the standalone cell, or the redirection to the standalone cell based at least in part on whether the UE has received information indicating that the frequency can be used for a standalone cell or a secondary cell group.

13. The apparatus of claim 1 , wherein the transmission of the measurement report is delayed with regard to a frequency for which the power management level is identified.

14. The apparatus of claim 13 , wherein measurement reporting is not delayed with regard to a frequency for which the power management level is not identified.

15. The apparatus of claim 1 , wherein the one or more processors are further configured to:
reject a blind secondary cell group addition associated with a cell based at least in part on the power management level being identified for the cell.

16. The apparatus of claim 1 , wherein the power management level is associated with a handover of the UE to the second RAT, and wherein the measurement report is associated with a measurement configured on a frequency associated with the second RAT.

17. The apparatus of claim 1 , wherein the power management level is based at least in part on historical information associated with a cell.

18. The apparatus of claim 1 , wherein the power management level is based at least in part on motion information determined by the UE.

19. The apparatus of claim 1 , wherein the one or more processors are further configured to:
transmit information indicating whether the UE supports the second RAT.

20. An apparatus for wireless communication at a user equipment (UE), comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to:
identify, while connected to a first cell associated with a first radio access technology (RAT), a second cell, associated with a second RAT, for dual-connectivity communication or a handover;
identify a power management level for the second cell, wherein the power management level is based at least in part on a compliance power budget of the UE, wherein the power management level is based at least in part on a determination that decreasing power allocated for the first RAT will not cause radio link failure on the first cell; and
allocate, prior to adding the second cell, a power for the second cell based at least in part on the identified power management level.

21. The apparatus of claim 20 , wherein the power management level is based at least in part on a determination that a measurement on the second cell is within a threshold of a measurement reporting criterion, or that the measurement on the second cell satisfies the measurement reporting criterion and a time to trigger the handover or a cell addition has started.

22. The apparatus of claim 20 , wherein the power management level is based at least in part on a determination, before the compliance power budget is modified, that the second cell would not have adequate power to complete a communication.

23. A method of wireless communication performed by a user equipment (UE), comprising:
identifying, while camped on a first cell associated with a first radio access technology (RAT), a power management level for a communication using a second RAT, wherein the power management level indicates an available power for the communication using the second RAT, and wherein the available power is based at least in part on an exposure rate or an absorption rate; and
delaying a transmission of a measurement report on the first cell based at least in part on the identification of the power management level, wherein:
the power management level is based at least in part on the measurement report being associated with a particular frequency, and
the frequency is associated with a dual-connectivity cell addition, a handover to a standalone cell, or a redirection to the standalone cell.

24. The method of claim 23 , wherein the power management level fails to satisfy a threshold, and wherein the transmission is delayed based at least in part on the power management level failing to satisfy the threshold.

25. The method of

Assignees

• Qualcomm Inc

Inventors

• Santhanam Arvind Vardarajan
• Challa Raghu Narayan
• Banister Brian Clarke
• Curtiss Troy
• Umatt Bhupesh Manoharlal
• Chirala Ramesh Chandra
• Lu Lin

Classifications

• H04W36/008375

  based on historical data · CPC title

• H04W36/00698

  using different RATs · CPC title

• H04W36/00692

  using simultaneous multiple data streams, e.g. cooperative multipoint [CoMP], carrier aggregation [CA] or multiple input multiple output [MIMO] (allocation of physical resources in CoMP or in CA H04L5/0035) · CPC title

• H04W36/0058 Primary

  Transmission of hand-off measurement information, e.g. measurement reports · CPC title

• H04W36/0069

  in case of dual connectivity, e.g. decoupled uplink/downlink · CPC title