US 12,245,160 B2
Power control method and power control apparatus
Zhengzheng Xiang, Shanghai (CN); Jinfang Zhang, Shenzhen (CN); Wenting Guo, Shanghai (CN); Hongjia Su, Shanghai (CN); and Lei Lu, Shanghai (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Aug. 13, 2021, as Appl. No. 17/401,790.
Application 17/401,790 is a continuation of application No. PCT/CN2020/074892, filed on Feb. 12, 2020.
Claims priority of application No. 201910119337.7 (CN), filed on Feb. 15, 2019.
Prior Publication US 2021/0410080 A1, Dec. 30, 2021
Int. Cl. H04W 52/24 (2009.01); H04L 5/00 (2006.01); H04W 4/40 (2018.01)
CPC H04W 52/242 (2013.01) [H04L 5/0048 (2013.01); H04W 4/40 (2018.02)] 14 Claims
OG exemplary drawing
 
1. A method, performed by a first terminal device or a chip for the first terminal device, the method comprising:
sending a first signal to a second terminal device at a first transmit power;
receiving first information from the second terminal device indicating a first received power, and the first received power being a higher layer filtered reference signal received power (RSRP) determined by the second terminal device based on the first signal;
determining an estimated value of a path loss between the first terminal device and the second terminal device based on the first transmit power and the first received power indicated from the second terminal device;
determining a second transmit power based on a minimize function related to the estimated value of the path loss between the first terminal device and the second terminal device and an estimated value of a path loss between the first terminal device and a network device, wherein the second transmit power is a transmit power of a second signal; and
sending the second signal to the second terminal device at the second transmit power.