公开(公告)号：US10312935B2

公开(公告)日：2019-06-04

申请号：US15757590

申请日：2016-03-07

Applicant: SOLiD, INC.

Inventor： Hee Cheol Yun ,  Seung Rog Choi ,  Sun Keun Yu ,  Tae Hyeong Kim

IPC: H03M7/30 ,  H04L1/00 ,  H04L27/26 ,  H04B10/516 ,  H04B10/2575

Abstract: There is provided a digital data compression device including a domain converter configured to perform frequency domain conversion on input digital I/Q data and output coefficient data corresponding to the digital I/Q data; a data converter configured to receive the coefficient data output from the domain converter and convert the input coefficient data of Cartesian coordinates into coefficient data of polar coordinates; and a quantizer configured to quantize the coefficient data of the polar coordinates output from the data converter.

公开(公告)号：US11916717B2

公开(公告)日：2024-02-27

申请号：US17847779

申请日：2022-06-23

Applicant: SOLiD, INC.

Inventor： Nag Won Kwon ,  Hee Cheol Yun ,  Hyun Soo Shin ,  Hyun Chae Kim

IPC: H04L27/26 ,  H04B17/327 ,  H04B1/04 ,  H04W52/22

CPC classification number: H04L27/2623 ,  H04B1/0475 ,  H04B17/327 ,  H04W52/225

Abstract: The present disclosure relates to a method of reducing a Peak to Average Power Ratio (PAPR) in a communication device, and more particularly, to a method of Crest Factor Reduction (CFR) processing of a signal in order to reduce a PAPR in a communication device such as a repeater. The communication device includes: a first CFR module configured generate a first processed signal by CFR processing an original signal; and a second CFR module configured generate a second processed signal by CFR processing the first processed signal, wherein the first processed signal is generated using a first sampling rate, and the second processed signal is generated using a second sampling rate. According to the disclosure, even a communication device with a low sampling rate may effectively remove a peak component of an input signal.