US 12,218,701 B2
Method for maintaining performance of transmission signal, and electronic device for performing same
Yongjun An, Suwon-si (KR); and Namjun Cho, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Feb. 16, 2022, as Appl. No. 17/673,102.
Application 17/673,102 is a continuation of application No. PCT/KR2020/010846, filed on Aug. 14, 2020.
Claims priority of application No. 10-2019-0101756 (KR), filed on Aug. 20, 2019.
Prior Publication US 2022/0173762 A1, Jun. 2, 2022
Int. Cl. H04B 1/40 (2015.01); H03F 3/19 (2006.01); H03F 3/21 (2006.01); H04B 1/04 (2006.01); H04B 1/10 (2006.01); H04B 17/12 (2015.01)
CPC H04B 1/40 (2013.01) [H03F 3/19 (2013.01); H03F 3/21 (2013.01); H04B 1/10 (2013.01); H04B 17/12 (2015.01); H03F 2200/294 (2013.01); H04B 2001/0416 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a transceiver;
a power amplifier (PA) connected to the transceiver;
a power supply modulator configured to supply power to the power amplifier;
at least one antenna connected to the power amplifier; and
at least one processor, comprising processing circuitry, operatively connected to the transceiver, the power amplifier, and the power supply modulator, and configured to:
identify a block error rate (BLER) corresponding to an uplink signal transmitted through the at least one antenna,
determine whether a signal quality of the uplink signal is a degraded state based on the identified BLER,
measure a channel environment factor including a received signal strength indication (RSSI) indicating a wireless communication state,
identify whether the wireless communication state is one of a strong electric field or a medium electric field based on the measured channel environment factor,
determine whether a signal quality of a downlink signal received at the transceiver is a good state based on the strong electric field and/or the medium electric field, and control the power supply modulator to add a first offset value to a voltage value of power supplied from the power supply modulator to the power amplifier based on the signal quality of the uplink signal being the degraded state and the signal quality of the downlink signal being the good state.