公开(公告)号：US20230040041A1

公开(公告)日：2023-02-09

申请号：US17880527

申请日：2022-08-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Suho JIN ,  Dongju LEE ,  Hyeok KWON ,  Jaeho KIM ,  Jongyeon KIM ,  Cheolwoo PARK

IPC: H04W52/52 ,  H04W52/36

Abstract: An electronic device may include: at least one communication processor, an RFIC, at least one power amplifier , and at least one converter and wherein the at least one communication processor is configured to: set a driving voltage, to be applied to a first power amplifier for amplifying a first RF signal provided from the RFIC among the at least one power amplifier, to be a first voltage, based on an APT mode, control at least part of the at least one converter to provide a first voltage, set based on the APT mode, to the first power amplifier during a transmission period of the first RF signal, and control at least part of the at least one converter to provide the first voltage to the first power amplifier during at least partial period of a remaining period in which no RF signal is transmitted, based on the occurrence of an event associated with audible noise.

公开(公告)号：US20230156613A1

公开(公告)日：2023-05-18

申请号：US18086642

申请日：2022-12-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jaeho KIM ,  Suho JIN ,  Hyeok KWON ,  Jongyeon KIM ,  Dongju LEE

IPC: H04W52/14 ,  H04W52/24

CPC classification number: H04W52/146 ,  H04W52/241

Abstract: A method of controlling power supply for amplifying a radio frequency (RF) signal includes: determining whether a power supply mode for supplying power from a power modulator of a communication apparatus to an amplifier for amplifying the RF signal is an envelope tracking (ET) mode for supplying power based on ET of the RF signal; when the power supply mode is the ET mode, determining whether a downlink block error rate in the ET mode and a downlink modulation method in the ET mode satisfy a first condition; when the first condition is satisfied, determining whether a full resource block (RB) in an uplink band is allocated to uplink data transmission; and when the full RB in the uplink band is allocated to uplink data transmission, switching the power supply mode to an average power tracking (APT) mode for supplying power based on average power of the RF signal.