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    Communication device and CFR processing method thereof
    192.
    发明授权
    Communication device and CFR processing method thereof 有权

    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.

    Method of interworking between spectrum sharing system and distributed antenna system
    194.
    发明授权
    Method of interworking between spectrum sharing system and distributed antenna system 有权

    公开(公告)号：US11716119B2

    公开(公告)日：2023-08-01

    申请号：US17348136

    申请日：2021-06-15

    Applicant: SOLiD, INC.

    Inventor： Ok Jin Kim

    IPC: H04B7/022 ,  H04W16/14 ,  H04W72/0453

    CPC classification number: H04B7/022 ,  H04W16/14 ,  H04W72/0453

    Abstract: The disclosure provides a method of operating a distributed antenna system (DAS) interworking with a spectrum sharing system (SSS) including: transmitting, by a node unit of the DAS, DAS information to a management system entity (MSE); generating, by the MSE, linkage information based on the DAS information and radio service device (RSD) information received from at least one RSD of the SSS; transmitting, by the MSE, the interworking information to a system controller of the SSS; receiving, by the MSE, allocation information including a result of allocating shared radio resources to the DAS and the at least one RSD, respectively, according to the interworking information from the system controller; transmitting, by the MSE, the allocation information to the node unit; and operating, by the node unit, according to the allocation information.

    Base station signal matching device, and base station interface unit and distributed antenna system including the same
    195.
    发明授权
    Base station signal matching device, and base station interface unit and distributed antenna system including the same 有权

    公开(公告)号：US11483057B2

    公开(公告)日：2022-10-25

    申请号：US16144495

    申请日：2018-09-27

    Applicant: SOLiD, INC.

    Inventor： Yung Keun Oh

    IPC: H04B7/155 ,  H04B7/26 ,  H04W88/08 ,  H04W40/22

    Abstract: Provided are a base station signal matching device, and a base station interface unit and a distributed antenna system including the base station signal matching device. The base station signal matching device included in a distributed antenna system receiving a base station signal from at least one base station and transmitting the base station signal to at least one user terminal includes: a signal matching unit receiving a first base station signal from a corresponding base station and matching the first base station signal to be suitable for signal processing of the distributed antenna system; and a signal processing unit receiving the matched first base station signal from the signal matching unit, receiving a matched second base station signal from another base station signal matching device, and combining the matched first base station signal with the matched second base station signal.

    Optical communication system and method of monitoring thereof
    198.
    发明授权
    Optical communication system and method of monitoring thereof 有权

    公开(公告)号：US11418277B2

    公开(公告)日：2022-08-16

    申请号：US17097621

    申请日：2020-11-13

    Applicant: SOLiD, INC.

    Inventor： Chi Young Park ,  Gil Koog Kim ,  Bum Soo Park

    IPC: H04J14/02

    Abstract: Provided is an optical communication system configured as an optical ring network including: a first optical communication device configured to transmit a first optical signal having a first wavelength in a first direction, and to transmit a second optical signal having a second wavelength in a second direction opposite to the first direction; and a second optical communication device configured to generate a first reflected signal by reflecting the first optical signal when the first optical signal is received, to generate a second reflected signal by reflecting the second optical signal when the second optical signal is received, and to transmit the first and second reflected signals to the first optical communication device, wherein the first optical communication device analyzes a connection state of the second optical communication device based on the first and second reflected signals.

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