公开(公告)号：US20190115878A1

公开(公告)日：2019-04-18

申请号：US16090126

申请日：2017-03-24

Applicant: Samsung Electronics Co., Ltd

Inventor： Munwoo LEE ,  Youngyoon WOO ,  Martynovich PAVEL ,  Jaebum KIM ,  Donggeun LEE ,  Sungchul HONG

IPC: H03F1/32 ,  H03F3/24 ,  H04B3/23 ,  H04B1/04 ,  H04B17/10 ,  H04W88/08

Abstract: The present disclosure relates to an apparatus and a method for transmitting a signal using a power amplifier in a wireless communication system in which a transceiver comprises a digital pre-distorter configured to distort an input signal based on a distortion control value, a power amplifier configured to amplify an output signal from the digital pre-distorter, an antenna configured to transmit an output signal from the power amplifier, an echo signal canceller configured to remove an echo signal which returns to the power amplifier due to a return loss of a path between the power amplifier and the antenna, from a feedback signal obtained at an output stage of the power amplifier, and a digital pre-distortion adaptation unit configured to determine the distortion control value based on an output signal from the echo signal canceller.