Techniques for per communication link energy reservation

Patent metadata

Field	Value
Publication number	US-12328682-B2
Application number	US-202217934284-A
Country	US
Kind code	B2
Filing date	Sep 22, 2022
Priority date	Nov 12, 2021
Publication date	Jun 10, 2025
Grant date	Jun 10, 2025

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify an available energy for uplink transmission of a plurality of communication links of the UE. The UE may configure, from the available energy, a first set of energy allocations for the plurality of communication links. The UE may configure a second set of energy allocations for one or more communication links of the plurality of communication links, wherein the second set of energy allocations are allocated from a remainder of the available energy after the first set of energy allocations are allocated. The UE may transmit based at least in part on at least one of the first set of energy allocations or the second set of energy allocations. Numerous other aspects are described.

First claim

What is claimed is:

1. 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:
identify an available energy for uplink transmission of a plurality of communication links of the UE;
allocate a total minimum reserve among the plurality of communication links;
configure, from the available energy and based at least in part on the allocated total minimum reserve, a first set of energy allocations for at least one communication link of the plurality of communication links, wherein the first set of energy allocations are based at least in part on at least one of a control traffic parameter for the at least one communication link or a requested amount of energy for the at least one communication link, wherein the requested amount of energy is based at least in part on a priority of data for transmission, and wherein the control traffic parameter is based at least in part on at least one of:
a physical uplink control channel (PUCCH) transmit power,
a PUCCH transmit time,
a PUCCH duty cycle,
a random access channel (RACH) transmit power ramp counter,
a RACH preamble power,
a sounding reference signal power,
a sounding reference signal duration,
a sounding reference signal duty cycle, or
a RACH preamble duration;

configure a second set of energy allocations for one or more communication links of the plurality of communication links, wherein the second set of energy allocations are allocated from a remainder of the available energy after the first set of energy allocations are allocated; and
transmit based at least in part on at least one of the first set of energy allocations or the second set of energy allocations.

2. The UE of claim 1 , wherein the available energy is based at least in part on an exposure limit.

3. The UE of claim 1 , wherein the available energy includes a first available energy associated with a first communication link of the plurality of communication links and a second available energy associated with a second communication link of the plurality of communication links.

4. The UE of claim 3 , wherein the first available energy is different than the second available energy.

5. The UE of claim 1 , wherein the second set of energy allocations are associated with transmission of best-effort traffic.

6. The UE of claim 1 , wherein the first set of energy allocations are associated with transmission of at least one of:
a control channel, or
a data transmission associated with a threshold priority.

7. The UE of claim 1 , wherein the first set of energy allocations are based at least in part on a plurality of priorities corresponding to the plurality of communication links.

8. The UE of claim 1 , wherein the one or more processors are further configured to:
determine a buffer status based at least in part on the second set of energy allocations, wherein the transmission based at least in part on at least one of the first set of energy allocations or the second set of energy allocations is based at least in part on the buffer status.

9. The UE of claim 1 , wherein a first energy allocation of the first set of energy allocations is based at least in part on a service associated with the UE.

10. The UE of claim 1 , wherein the requested amount of energy is configured to provide a threshold transmit power for the uplink transmission throughout a time interval.

11. The UE of claim 1 , wherein the requested amount of energy is based at least in part on a filtered value based at least in part on a measured transmit power.

12. The UE of claim 1 , wherein the allocated total minimum reserve is split among each communication link of the plurality of communication links based at least in part on a user configuration.

13. The UE of claim 1 , wherein the allocation of the total minimum reserve is based at least in part on at least one of:
a service type,
an antenna group,
a number of active radios,
an anchor status,
a window size,
a radio frequency condition, or
energy usage.

14. The UE of claim 1 , wherein the one or more processors, to allocate the total minimum reserve, are configured to sum minimum dynamic energy reserves across all communication links of the plurality of communication links.

15. The UE of claim 1 , wherein the plurality of communication links of the UE correspond to a plurality of radios of the UE.

16. The UE of claim 1 , wherein the available energy is for uplink transmission in a transmission interval, the first set energy allocations are for the at least one communication link during the transmission interval, and the second set of energy allocations are for the one or more communication links during the transmission interval.

17. A method of wireless communication performed by a user equipment (UE), comprising:
identifying an available energy for uplink transmission of a plurality of communication links of the UE;
allocating a total minimum reserve among the plurality of communication links;
configuring, from the available energy and based at least in part on the allocated total minimum reserve, a first set of energy allocations for at least one communication link of the plurality of communication links, wherein the first set of energy allocations are based at least in part on at least one of a control traffic parameter for the at least one communication link or a requested amount of energy for the at least one communication link, wherein the requested amount of energy is based at least in part on a priority of data for transmission, and wherein the control traffic parameter is based at least in part on at least one of:
a physical uplink control channel (PUCCH) transmit power,
a PUCCH transmit time,
a PUCCH duty cycle,
a random access channel (RACH) transmit power ramp counter,
a RACH preamble power,
a sounding reference signal power,
a sounding reference signal duration,
a sounding reference signal duty cycle, or
a RACH preamble duration;

configuring a second set of energy allocations for one or more communication links of the plurality of communication links, wherein the second set of energy allocations are allocated from a remainder of the available energy after the first set of energy allocations are allocated; and
transmitting based at least in part on at least one of the first set of energy allocations or the second set of energy allocations.

18. The method of claim 17 , wherein the available energy is based at least in part on an exposure limit.

19. The method of claim 17 , wherein the available energy includes a first available energy associated with a first communication link of the plurality of communication links and a second available energy associated with a second communication link of the plurality of communication links.

20. The method of claim 19 , wherein the first available energy is different than the second available energy.

21. The method of claim 17 , wherein the second set of energy allocations are associated with transmission of best-effort traffic.

22. The method of claim 17 , wherein the first set of energy allocations are associated with transmission of at least one of:
a control channel, or
a data transmission associated with a threshold priority.

23. The method of claim 17 , wherein the first set of energy allocations are based at least in part on a plurality of priorities corresponding to the plurality of communication links.

Assignees

• Qualcomm Inc

Inventors

• Liu Tienyow
• Chauvin Michel
• Meshkati Farhad
• Challa Raghu Narayan
• Shahidi Reza
• Meylan Arnaud
• Ramadan Yahia
• Lin Jing
• Chen Tianpei
• Nadakuduti Jagadish
• Lu Lin
• Guckian Paul
• Lou Huang

Classifications

• H04W72/0473

  the resource being transmission power · CPC title

• H04W52/38

  TPC being performed in particular situations · CPC title

• H04W52/367

  Power values between minimum and maximum limits, e.g. dynamic range · CPC title

• H04W52/365

  Power headroom reporting · CPC title

• H04W52/281

  taking into account user or data type priority · CPC title