公开(公告)号：US11251755B2

公开(公告)日：2022-02-15

申请号：US16833771

申请日：2020-03-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hongmin Choi ,  Junse Lee ,  Hyunseok Yu ,  Youngik Cho

IPC: H04K1/02 ,  H04L25/03 ,  H04L25/49 ,  H03F1/32 ,  H03F3/24 ,  H04B1/04 ,  H03F3/189

Abstract: A device configured to perform wireless communication includes: a pre-distortion circuit configured to generate a pre-distorted input signal by performing pre-distortion on an input signal based on a parameter set comprising a plurality of coefficients; a power amplifier configured to generate an output signal by amplifying an RF signal based on the pre-distorted input signal; and a parameter obtaining circuit configured to obtain second memory polynomial modeling information corresponding to an operating frequency band based on first memory polynomial modeling information corresponding to each of a plurality of frequency sections and obtain a parameter set according to an indirect learning structure by using the second memory polynomial modeling information.

公开(公告)号：US11133834B2

公开(公告)日：2021-09-28

申请号：US16736956

申请日：2020-01-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hongmin Choi ,  Junse Lee ,  Hyunseok Yu

IPC: H04B1/04 ,  H03F1/32 ,  H03F3/24

Abstract: Systems and methods are described to perform wireless communication. The device includes a pre-distortion circuit configured to pre-distort an input signal based on a parameter set including a plurality of coefficients and generate a pre-distorted signal, a power amplifier configured to amplify the pre-distorted signal and generate an output signal, and a parameter obtaining circuit configured to perform an iterative approximation operation based on the output signal and the pre-distorted signal, which change over time, according to an indirect training structure configured to minimize a difference between an intermediate signal obtained based on the output signal and the pre-distorted signal, and obtain the parameter set.

公开(公告)号：US20210013844A1

公开(公告)日：2021-01-14

申请号：US16833771

申请日：2020-03-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hongmin Choi ,  Junse Lee ,  Hyunseok Yu ,  Youngik Cho

IPC: H03F1/32 ,  H03F3/24 ,  H03F3/189 ,  H04B1/04

Abstract: A device configured to perform wireless communication includes: a pre-distortion circuit configured to generate a pre-distorted input signal by performing pre-distortion on an input signal based on a parameter set comprising a plurality of coefficients; a power amplifier configured to generate an output signal by amplifying an RF signal based on the pre-distorted input signal; and a parameter obtaining circuit configured to obtain second memory polynomial modeling information corresponding to an operating frequency band based on first memory polynomial modeling information corresponding to each of a plurality of frequency sections and obtain a parameter set according to an indirect learning structure by using the second memory polynomial modeling information.