公开(公告)号：US20230309030A1

公开(公告)日：2023-09-28

申请号：US18325369

申请日：2023-05-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei RUAN ,  Cong CHEN ,  Jinghui LIU

IPC: H04W52/42 ,  H04W52/24

CPC classification number: H04W52/42 ,  H04W52/241 ,  H04W52/245

Abstract: Embodiments of this application disclose a power control method, and a communication device and system, relating to the field of wireless communication technologies. The method is applied to a first communication apparatus that supports transmission of a plurality of spatial streams. The method includes sending measurement indication information to a second communication apparatus to indicate to the second communication apparatus to perform channel quality measurement on a channel between the first communication apparatus and the second communication apparatus. Each of the plurality of spatial streams occupies a plurality of subbands on the channel. The method further includes receiving a channel quality measurement result fed back by the second communication apparatus, where the channel quality measurement result includes subband measurement information of each subband on the channel. The method further includes selectively performing, based on the subband measurement information, power water filling on subbands occupied by the plurality of spatial streams.