US 11,870,512 B2
Distributed closed-loop power control with VGA gain update
Yanru Tang, San Diego, CA (US); Pranav Dayal, San Diego, CA (US); Hou-Shin Chen, San Diego, CA (US); Pritesh Vora, San Diego, CA (US); Tienyu Chang, Sunnyvale, CA (US); Siuchuang Ivan Lu, San Jose, CA (US); and Kee-Bong Song, San Diego, CA (US)
Assigned to SAMSUNG ELECTRONICS CO., LTD.
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Apr. 27, 2022, as Appl. No. 17/731,251.
Prior Publication US 2023/0353195 A1, Nov. 2, 2023
Int. Cl. H04B 7/04 (2017.01); H03F 3/24 (2006.01); H04B 1/04 (2006.01)
CPC H04B 7/04 (2013.01) [H03F 3/245 (2013.01); H04B 2001/0416 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A closed-loop power control system, comprising:
a first power amplifier;
a first output power detector configured to detect a first output power level Pdet of the first power amplifier;
a first processor configured to determine a first analog gain Greq for a first controller and a first gain dGain for a first digital-to-analog converter (DAC) based on a first accumulated error between the first output power level Pdet and a target Effective Isotropically Radiated Power (EIRP), wherein the first accumulated error is weighted based on a resource block size; and
a second processor configured to set a first variable gain GCreq of a first variable gain amplifier (VGA) coupled to an input of the first power amplifier.