公开(公告)号：US20160315706A1

公开(公告)日：2016-10-27

申请号：US15079783

申请日：2016-03-24

Applicant: SOLiD, INC.

Inventor： Yeongshin YEO ,  Hwansun LEE ,  Youngju YOU

IPC: H04B10/2575

CPC classification number: H04B10/25753 ,  H04B7/022 ,  H04B10/40

Abstract: A distributed antenna system includes a headend device for generating a downlink transmission signal by combining a plurality of downlink RF signals in different frequency bands, received from a plurality of base stations, and converting the downlink transmission signal into a downlink optical signal, a main remote device for receiving the downlink optical signal from the headend device, converting the downlink optical signal into the downlink transmission signal, and amplifying the plurality of downlink RF signals included in the downlink transmission signal, and a sub-remote device for receiving the downlink transmission signal distributed from the main remote device, and amplifying the plurality of downlink RF signals included in the received downlink transmission signal.

Abstract translation: 分布式天线系统包括：头端设备，用于通过组合从多个基站接收的不同频带中的多个下行链路RF信号并将下行链路传输信号转换为下行链路光信号来生成下行链路传输信号;主远程 用于从头端装置接收下行链路光信号的装置，将下行光信号转换为下行传输信号，以及放大下行传输信号中包含的多个下行RF信号;以及副远程装置，用于接收下行传输信号 从主远程设备分配，并且放大所接收的下行链路传输信号中包括的多个下行RF信号。

公开(公告)号：US20160212630A1

公开(公告)日：2016-07-21

申请号：US15084843

申请日：2016-03-30

Applicant: SOLiD, INC.

Inventor： Hyoungho KIM ,  Doyoon KIM

IPC: H04W16/24 ,  H04B7/02

CPC classification number: H04W16/24 ,  H04B7/024 ,  H04W88/085

Abstract: There is provided a distributed antenna system includes a plurality of head-end units configured to receive mobile communication signals from at least one base station, a hub unit connected to each of the plurality of head-end units through a first transport medium, the hub unit distributing the mobile communication signals respectively received from the plurality of head-end units to a plurality of remote units connected thereto through a second transport medium, and the plurality of remote units remotely disposed to transmit the mobile communication signals to a terminal in a service coverage, wherein the hub unit includes a signal summer configured to digitally sum sub-band signals in a same mobile communication service band based on the mobile communication signals.

Abstract translation: 提供了一种分布式天线系统，包括被配置为从至少一个基站接收移动通信信号的多个头端单元，通过第一传输介质连接到多个头端单元中的每一个的集线器单元，该集线器 将从多个头端单元分别接收的移动通信信号分配到通过第二传输介质连接到其上的多个远程单元，以及远程设置的多个远程单元，以将服务中的移动通信信号发送到终端 覆盖，其中所述集线器单元包括信号加法器，其被配置为基于所述移动通信信号对相同的移动通信服务频带中的子带信号进行数字求和。

公开(公告)号：US09106361B2

公开(公告)日：2015-08-11

申请号：US13988837

申请日：2010-11-30

Applicant: Ki-Woon Na ,  Woo-Jin Lee ,  Kwon-Hoon Han ,  Seung-Rog Choi ,  Tae-Hyeong Kim ,  Young-Ouk Noh

Inventor： Ki-Woon Na ,  Woo-Jin Lee ,  Kwon-Hoon Han ,  Seung-Rog Choi ,  Tae-Hyeong Kim ,  Young-Ouk Noh

IPC: H04J14/02 ,  H04B10/50 ,  H04B10/572

CPC classification number: H04J14/02 ,  H04B10/50575 ,  H04B10/506 ,  H04B10/572 ,  H04J14/0228 ,  H04J14/0272 ,  H04J14/0282

Abstract: The present invention relates to a passive wavelength division multiplexing device for automatic wavelength locking and a system thereof including an optical multiplexer, an optical filter, an integrated optical receiver monitor, and a tunable optical transmitter. Through wavelength locking that adjusts a wavelength of an optical signal, which changes according to an external environment such as a temperature change, into a wavelength of an optical signal having the maximum optical intensity, communication quality may be maximized by securing a stable communication channel, a locking time and a communication channel setting time may be reduced, and more robust locking may be guaranteed.

Abstract translation: 本发明涉及一种用于自动波长锁定的被动波分复用装置及其系统，包括光复用器，滤光器，集成光接收器监视器和可调光发射器。 通过波长锁定，其将根据诸如温度变化的外部环境变化的光信号的波长调整为具有最大光强度的光信号的波长，通过确保稳定的通信信道可以使通信质量最大化， 可以减少锁定时间和通信信道设置时间，并且可以保证更加鲁棒的锁定。

公开(公告)号：US11923657B2

公开(公告)日：2024-03-05

申请号：US17141505

申请日：2021-01-05

Applicant: SOLiD, INC.

Inventor： Won Song Chang

IPC: H01S5/042 ,  H04B10/50 ,  H04B10/516

CPC classification number: H01S5/042 ,  H04B10/503 ,  H04B10/5161

Abstract: Provided are a laser diode driver for a multilevel optical signal and a multilevel optical signal transmission device including the same, wherein the laser diode driver includes: a clock generator configured to generate and output a clock signal; a first latch configured to delay output of data corresponding to a first timing of the clock signal from among data sequentially input at each data input period; a second latch configured to delay output of data corresponding to a second timing of the clock signal from among data sequentially input at each data input period; a first synchronization processor configured to output a signal corresponding to the data input by the first latch according to the clock signal; and a second synchronization processor configured to output a signal corresponding to the data input by the second latch according to the clock signal.

公开(公告)号：US11817918B2

公开(公告)日：2023-11-14

申请号：US17272937

申请日：2019-07-25

Applicant: Solid, Inc.

Inventor： Ho Sik Jang ,  Hoo Pyo Hong ,  Hyong Ho Kim ,  Dong Hee Kwon ,  Kyung Eun Han ,  Jin Hwa Ku ,  Dae Young Kim ,  Young Man Cho

IPC: H04B7/022 ,  H04B17/11 ,  H04B17/15 ,  H04B17/29 ,  H04B7/26 ,  H04Q3/00

CPC classification number: H04B7/022 ,  H04B7/2609 ,  H04B17/11 ,  H04B17/15 ,  H04B17/29 ,  H04Q3/0075 ,  H04Q3/0087 ,  H04Q2213/13098 ,  H04Q2213/145 ,  H04Q2213/167

Abstract: A distributed antenna system of the present invention implements duplication by a method of configuring a first headend unit and a second headend unit in an active state or in a standby state and connecting a hub unit or a remote unit to the first headend unit and the second headend unit and by a method of connecting, through a redundancy link, a hub unit or remote units of a branch group branched from and connected to each headend unit, activating the redundancy link according to the control of an active headend unit when an error occurs in a frame transmission path, and changing logical port states of a hub unit or remote units that cannot transmit frames due to the error in order to change the frame transmission path so that frame transmission is possible through the activated redundancy link.

公开(公告)号：US11791921B2

公开(公告)日：2023-10-17

申请号：US17120843

申请日：2020-12-14

Applicant: SOLiD, INC.

Inventor： Donghee Kwon ,  Hoopyo Hong

IPC: H04J3/06

CPC classification number: H04J3/0673 ,  H04J3/0641 ,  H04J3/0667 ,  H04J3/0697

Abstract: A synchronization method of a communication network, the synchronization method comprises monitoring a connection state of second communication nodes that are synchronized using a synchronization signal provided through a first communication node to which a synchronization source is connected, determining whether the number of the connected second communication nodes exceeds a reference value according to a result of the monitoring and switching a synchronization mode of at least one second communication node when the number of the second communication nodes exceeds a reference value.

公开(公告)号：US20230023553A1

公开(公告)日：2023-01-26

申请号：US17727755

申请日：2022-04-24

Applicant: SOLiD, Inc.

Inventor： Ho Sik JANG ,  Hoo Pyo HONG ,  Woo Jae KIM ,  Dong Hee KWON ,  Jeong Won KANG

IPC: H04B7/08 ,  H04L69/04 ,  H04B7/155 ,  H03M7/24

Abstract: A method of combining compressed uplink signals according to one aspect of the present disclosure is a method of combining IQ data of uplink signals compressed without decompression by a block floating point compression method, a block scaling compression method, or a -law compression method.

公开(公告)号：US20220408386A1

公开(公告)日：2022-12-22

申请号：US17834377

申请日：2022-06-07

Applicant: SOLiD, INC.

Inventor： Ok Jin KIM

IPC: H04W56/00 ,  H04W72/02 ,  H04W72/04

Abstract: Provided is a method of outputting a synchronization signal in a communication node comprising: receiving communication connection information from a terminal, identifying detectable position information of a synchronization signal block (SS block) included in the communication connection information, setting a position of the SS block based on the identified detectable position information, and outputting the SS block based on the set position.

公开(公告)号：US11476960B2

公开(公告)日：2022-10-18

申请号：US17319357

申请日：2021-05-13

Applicant: SOLiD, INC.

Inventor： Nag Won Kwon

IPC: H04B17/40 ,  H04B7/155 ,  H04W56/00 ,  H04B17/336

Abstract: Provided is an SINR measurement method of a repeater, the SINR measurement method including: obtaining SSBs from a plurality of base stations; obtaining cross-correlation for each of PSS symbols included in the obtained SSBs; measuring noise power based on the obtained SSBs; obtaining signal power and interference signal power based on a dot product of the cross-correlation for each of the PSS symbols; and measuring the SINR based on the signal power, the interference signal power, and the noise power.

公开(公告)号：US11438060B2

公开(公告)日：2022-09-06

申请号：US16514516

申请日：2019-07-17

Applicant: SOLiD, INC.

Inventor： Jaeyoung Heo ,  Kyungmin Kim ,  Gilkook Kim ,  Bumsoo Park ,  Chinhyoung An

IPC: H04B10/118 ,  H04B10/079 ,  H04B7/185 ,  H04B10/2575 ,  H04W56/00

Abstract: A satellite signal relay system according to an embodiment of the inventive concept includes: a plurality of remote units configured to receive an analog satellite signal, to convert the analog satellite signal into a digital satellite signal, to generate a characteristic signal for the analog satellite signal, to generate a transmission frame based on the digital satellite signal and the characteristic signal, and to convert the transmission frame into an optical transmission frame; and a central unit configured to convert optical transmission frames received from the plurality of remote units into transmission frames through an optical transmission medium, respectively, to extract a digital satellite signal and a characteristic signal from each of the converted transmission frames, and to convert any one of the extracted digital satellite signals into an analog satellite signal based on the extracted characteristics signals.