Power determining method, user equipment, and base station

Patent metadata

Field	Value
Publication number	US-11076364-B2
Application number	US-202016791932-A
Country	US
Kind code	B2
Filing date	Feb 14, 2020
Priority date	Sep 29, 2012
Publication date	Jul 27, 2021
Grant date	Jul 27, 2021

Abstract

Embodiments of the present invention provide a power determining method, a user equipment, and a base station. The method includes: determining an initial transmit power of each transmission object in a transmission object set; when a sum of initial transmit powers of all the transmission objects in the transmission object set is greater than a maximum transmit power, performing a power reduction operation based on a priority sequence of information corresponding to the transmission objects, so as to acquire an available transmit power of each transmission object in the transmission object set, where a sum of available transmit powers of all the transmission objects in the transmission object set is not greater than the maximum transmit power; and sending each transmission object in the transmission object set according to the available transmit power corresponding to each transmission object in the transmission object set.

First claim

The invention claimed is:

1. A power determining method comprising:
acquiring an initial transmit power of each transmission object in a transmission object set, wherein the transmission object set comprises at least one of physical random access channel (PRACH), physical uplink shared channel (PUSCH), physical uplink shared channel (PUCCH) or sounding reference signal (SRS);
performing a power reduction operation based on priority order information associated with each of the transmission objects and in response to a sum of initial transmit powers of all the transmission objects in the transmission object set being greater than a maximum transmit power, wherein a sum of allocated powers of all the transmission objects in the transmission object set is not greater than the maximum transmit power; and
sending each transmission object in the transmission object set according to the allocated power associated with each transmission object in the transmission object set,
wherein the priority order information associated with each of the transmission objects comprises a priority order of uplink control information (UCI) carried in the transmission object, and
wherein the priority order of the UCI satisfies:
a) a priority of a transmission object with channel quality information is lower than a priority of another transmission object with a scheduling request; and
b) a priority of a transmission object with hybrid automatic repeat acknowledgment (HARQ-ACK) information is the same as the priority of another transmission object with a scheduling request; and
c) a carrier with a minimum carrier index has a highest priority.

2. The method according to claim 1 , wherein the priority order information associated with each of the transmission objects comprises a priority order of a carrier on which the transmission object is transmitted.

3. The method according to claim 1 , wherein in response to the priority order of the UCI of at least two transmission objects being the same, the priority order information associated with each of the transmission objects comprises a priority order of a carrier on which the transmission object is transmitted.

4. A user equipment comprising:
a processor configured to
acquire an initial transmit power of each transmission object in a transmission object set; and
perform a power reduction operation based on a priority order of information associated with each of the transmission objects and in response to a sum of the initial transmit powers of all the transmission objects in the transmission object set being greater than a maximum transmit power,
wherein the priority order of the information comprises a priority order of uplink control information (UCI) carried in one of the transmission objects and the transmission object set comprises at least one of a physical random access channel (PRACH), a physical uplink shared channel (PUSCH), a physical uplink shared channel (PUCCH) or a sounding reference signal (SRS), and
wherein a sum of allocated powers of all the transmission objects in the transmission object set is not greater than the maximum transmit power; and

a sender configured to cooperate with the processor to send each transmission object in the transmission object set according to the allocated power associated with each transmission object in the transmission object set,
wherein the priority order of the UCI carried in each of the transmission objects satisfies the following:
a) a priority of the transmission object with channel quality information is lower than a priority of another transmission object with a scheduling request; and
b) a priority of the transmission object with hybrid automatic repeat request acknowledgment (HARQ-ACK) information is the same as the priority of another transmission object with a scheduling request; and
c) a carrier with a minimum carrier index has a highest priority.

5. The user equipment according to claim 4 , wherein the priority order information associated with each of the transmission objects comprises a priority order of a carrier on which the transmission object is transmitted.

6. The user equipment according to claim 4 , wherein in case of the priority order of the UCI of at least two transmission objects being the same, the priority order of the at least two transmission objects includes a priority order of carriers on which the at least two transmission objects are transmitted.

7. A non-transitory storage medium, wherein the non-transitory storage medium stores instructions, which when executed by a processor, cause the processor to:
acquire an initial transmit power of each transmission object in a transmission object set, wherein the transmission object set comprises at least one of a physical random access channel (PRACH), a physical uplink shared channel (PUSCH), a physical uplink shared channel (PUCCH) or a sounding reference signal (SRS);
perform a power reduction operation based on priority order information associated with a transmission object and in response to a sum of initial transmit powers of all the transmission objects in the transmission object set being greater than a maximum transmit power, wherein a sum of allocated powers of all the transmission objects in the transmission object set is not greater than the maximum transmit power; and
send each transmission object in the transmission object set according to the allocated power associated with each transmission object in the transmission object set,
wherein the priority order information associated with each of the transmission objects comprises a priority order of uplink control information (UCI) carried in at least one of the transmission objects, and
wherein the priority order of the UCI satisfies the following:
a) a priority of each of the transmission objects with a channel quality information is lower than a priority of another transmission object with a scheduling request; and
b) a priority of each of the transmission objects with hybrid automatic repeat request acknowledgment (HARQ-ACK) information is the same as the priority of another transmission object with a scheduling request; and
c) a carrier with a minimum carrier index has a highest priority.

8. The non-transitory storage medium according to claim 7 , wherein the priority order information associated with each of the transmission objects comprises a priority order of a carrier on which the transmission object is transmitted.

9. The non-transitory storage medium according to claim 7 , wherein in response to the priority order of the UCI of at least two transmission objects being the same, the priority order information includes a priority order of carriers on which the at least two transmission objects are transmitted.

Assignees

• Huawei Tech Co Ltd

Inventors

• Cheng Yan
• Yan Zhiyu

Classifications

• H04W72/569

  of the traffic information · CPC title

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W74/0833

  Random access procedures, e.g. with 4-step access · CPC title

• H04W52/146 Primary

  Uplink power control · CPC title

• H04W52/346

  distributing total power among users or channels · CPC title