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    METHOD FOR CLOCK SYNCHRONIZATION OF COMMUNICATION NETWORK, AND THE COMMUNICATION NETWORK USING THE SAME
    251.
    发明申请
    METHOD FOR CLOCK SYNCHRONIZATION OF COMMUNICATION NETWORK, AND THE COMMUNICATION NETWORK USING THE SAME 有权

    公开(公告)号：US20220417882A1

    公开(公告)日：2022-12-29

    申请号：US17780806

    申请日：2019-12-30

    Applicant: SOLiD, INC.

    Inventor： Donghee KWON ,  Hoopyo HONG

    IPC: H04W56/00 ,  H04L7/00 ,  H04L7/033 ,  H04J3/06

    Abstract: Provided are a clock synchronization method performed between communication nodes included in a communication network, the clock synchronization method comprises receiving a synchronization source signal through any one of remaining communication nodes except for an uppermost communication node included in the communication network, generating a reference clock for clock synchronization from the received synchronization source signal and transmitting the generated reference clock through a first path including at least a portion reverse to a second path through which a downlink signal is transmitted in the communication network.

    COMMUNICATION DEVICE AND CFR PROCESSING METHOD THEREOF
    252.
    发明申请
    COMMUNICATION DEVICE AND CFR PROCESSING METHOD THEREOF 有权

    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.

    OPTICAL COMMUNICATION SYSTEM AND METHOD OF MONITORING THEREOF
    254.
    发明申请
    OPTICAL COMMUNICATION SYSTEM AND METHOD OF MONITORING THEREOF 有权

    公开(公告)号：US20220360357A1

    公开(公告)日：2022-11-10

    申请号：US17869058

    申请日：2022-07-20

    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.

    Communication device and method of operation thereof
    255.
    发明授权
    Communication device and method of operation thereof 有权

    公开(公告)号：US11432298B2

    公开(公告)日：2022-08-30

    申请号：US17103442

    申请日：2020-11-24

    Applicant: SOLiD, INC.

    Inventor： Nagwon Kwon

    IPC: H04W24/02 ,  H04B7/155 ,  H04W72/08

    Abstract: A method of operating a communication device including a processor and a memory, the method comprises feeding back a downlink communication signal subjected to analog signal processing, generating signal modification information according to a comparison result of the fed-back downlink communication signal and a downlink communication signal before the analog signal processing, generating an interference cancellation signal for canceling interference occurring in an uplink communication signal by the downlink communication signal based on the generated signal modification information and canceling interference occurring in the uplink communication signal by using the generated interference cancellation signal.

    METHOD, APPARATUS, AND COMPUTER READABLE MEDIA FOR ACKNOWLEDGEMENT IN WIRELESS NETWORKS
    256.
    发明申请
    METHOD, APPARATUS, AND COMPUTER READABLE MEDIA FOR ACKNOWLEDGEMENT IN WIRELESS NETWORKS 有权

    公开(公告)号：US20220255594A1

    公开(公告)日：2022-08-11

    申请号：US17730545

    申请日：2022-04-27

    Applicant: SOLiD, INC.

    Inventor： Guoqing C. LI ,  Robert J. STACEY

    IPC: H04B7/0452 ,  H04W28/12 ,  H04W72/12 ,  H04L5/00 ,  H04L1/18 ,  H04L1/16

    Abstract: Embodiments of a system and method for communicating acknowledgments in a wireless network are generally described herein. In some embodiments, a method of wirelessly communicating acknowledgements includes receiving a first signal on a first subchannel from a second wireless device. The method may include transmitting a block acknowledgement of the first signal on a subchannel. The first wireless communication device may not receive a block acknowledgement request to transmit the block acknowledgement. In some embodiments, a method of communicating block acknowledgements includes transmitting a first transmission to a first wireless device on a first subchannel and a second transmission to a second wireless device on a second subchannel The method may include receiving a first block acknowledgement from the first wireless device and a second block acknowledgement from second wireless device. The first and second block acknowledgement may be received on one of the first and second subchannels.

    OPTICAL COMMUNICATION MODULE CAPABLE OF CONTROLLING OPTICAL POWER AND OPTICAL COMMUNICATION APPARATUS INCLUDING THE SAME
    257.
    发明申请
    OPTICAL COMMUNICATION MODULE CAPABLE OF CONTROLLING OPTICAL POWER AND OPTICAL COMMUNICATION APPARATUS INCLUDING THE SAME 有权

    公开(公告)号：US20220158734A1

    公开(公告)日：2022-05-19

    申请号：US17454713

    申请日：2021-11-12

    Applicant: SOLiD, INC.

    Inventor： Eun Sung LEE

    IPC: H04B10/296 ,  H04J14/02

    Abstract: According to an aspect of the disclosure, an optical communication module comprises an optical transmission assembly configured to generate first transmit light based on an input electric signal and output the first transmit light, an optical reception assembly configured to divide input first receive light into first receive payload data and first receive auxiliary management data, and an auxiliary management controller configured to analyze the first receive auxiliary management data and control attenuation of one or more of transmit light output from the optical transmission assembly and receive light input to the optical reception assembly, wherein the first receive light is formed by combining the first receive payload data and the first receive auxiliary management data, and the first receive payload data and the first receive auxiliary management data have different wavelengths.

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