公开(公告)号：US20240396652A1

公开(公告)日：2024-11-28

申请号：US18657270

申请日：2024-05-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Haedong YEON ,  Joohyun DO ,  Hyunseok YU

IPC: H04B17/354 ,  H04B17/364

Abstract: A wireless communication device includes: a transmission path circuit configured to generate a radio frequency (RF) output signal, based on a transmission signal and a supply voltage tracking an envelope signal; a feedback path circuit configured to be connected to the transmission path circuit so as to receive the RF output signal as a feedback signal, when switching from normal mode to calibration mode; a time domain-based measurement circuit configured to generate, in the calibration mode, an adjacent channel leakage ratio for a reception signal based on a time domain; and at least one processor configured to adjust, in the calibration mode, an envelope delay amount for the envelope signal, based on the adjacent channel leakage ratio.

公开(公告)号：US20240031952A1

公开(公告)日：2024-01-25

申请号：US18348805

申请日：2023-07-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Haedong YEON ,  Joohyun DO ,  Hyunseok YU ,  Youngik CHO

IPC: H04W52/36 ,  H04W52/32

CPC classification number: H04W52/367 ,  H04W52/325

Abstract: An operating method of a wireless communications device includes identifying a modulation order and resource allocation information of a first uplink signal transmitted in a first symbol and a second uplink signal transmitted in a second symbol preceding the first symbol, controlling a difference between a supply modulator output voltage value for the first uplink signal and a supply modulator output voltage value for the second uplink signal, based on the identified order or information, and transmitting the first uplink signal, based on the controlled difference between the supply modulator output voltage values.