公开(公告)号：US20180262206A1

公开(公告)日：2018-09-13

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 ,  H04B10/516 ,  H04L27/26

CPC classification number: H03M7/30 ,  H03M7/70 ,  H04B10/516 ,  H04L1/0013 ,  H04L27/2634

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：US20220417071A1

公开(公告)日：2022-12-29

申请号：US17847779

申请日：2022-06-23

Applicant: SOLID, INC.

Inventor： Nag Won KWON ,  Hee Cheol YUN ,  Hyun Soo SHIN

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

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.