公开(公告)号：US10454666B2

公开(公告)日：2019-10-22

申请号：US15546495

申请日：2016-02-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Taeyoung Min ,  Youngyoon Woo ,  Jaehyung Im ,  Pavel Martynovich

IPC: H04L7/02 ,  H04B17/10 ,  H04L7/00 ,  H04L1/24 ,  H04B17/00 ,  H04B17/13 ,  H04B17/19

Abstract: The present invention relates to an input/output signal synchronization method by a radio frequency unit. The input/output signal synchronization method according to the present invention comprises the steps of: generating a transmitter (Tx) input signal by adding, to a baseband signal, a test signal located at a frequency out of an operation frequency range of the radio frequency unit; collecting the Tx input signal and a Tx output signal obtained by outputting the input signal through a Tx function block; and synchronizing the Tx input signal and the Tx output signals, based on a result obtained by the collecting.

公开(公告)号：US12170535B2

公开(公告)日：2024-12-17

申请号：US18188106

申请日：2023-03-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Munwoo Lee ,  Jungwoo Ku ,  Youngyoon Woo ,  Dogeun Eum ,  Seonghyeon Lee

IPC: H04B1/04

Abstract: An electronic device is provided. The electronic device includes a digital pre-distortion (DPD), a digital-to-analog converter (DAC), a power amplifier (PA), a first coupler obtaining a feedback signal from an output of the power amplifier, a circulator obtaining a reverse signal in which the output of the power amplifier is reflected, a transmission filter, a second coupler obtaining a filter-feedback signal from an output of the transmission filter, an antenna, an analog-to-digital converter (ADC) converting a composite signal including the feedback signal, the filter-feedback signal, and the reverse signal into a digital composite signal, a separation circuit, and a pulse inter-modulation cancellation (PIMC) circuit in which the separation circuit, based on the digital composite signal and an input signal of the DPD, obtains a digital signal of the feedback signal, a digital signal of the filter-feedback signal, and a digital signal of the reverse signal.

公开(公告)号：US20240204737A1

公开(公告)日：2024-06-20

申请号：US18380460

申请日：2023-10-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junghwan MOON ,  Youngyoon Woo ,  Minsik Jun

IPC: H03F3/24 ,  H03F1/32 ,  H04B1/04

CPC classification number: H03F3/245 ,  H03F1/3241 ,  H04B1/0475 ,  H03F2200/451 ,  H04B2001/0425

Abstract: An electronic device may include: a processor; a power amplifier; a power supply configured to supply power to the power amplifier; a crest factor reduction (CFR) module; and a digital predistortion (DPD) module, wherein the processor is configured to: transmit a first radio frequency (RF) signal, based on a first state of each of the CFR module, the DPD module, and the power supply, in a first transmission interval, the first RF signal being generated from a first baseband signal; identify voltage information of a second RF signal associated with a second transmission interval after the first transmission interval; change a state of each of the CFR module, the DPD module, and the power supply from the first state to a second state, based on the voltage information, in a first reception interval between the first transmission interval and the second transmission interval; and transmit the second RF signal generated from a second baseband signal based on the second state of each of the CFR module, the DPD module, and the power supply, in the second transmission interval.