公开(公告)号：US20170149505A1

公开(公告)日：2017-05-25

申请号：US15426418

申请日：2017-02-07

Applicant: SOLID, INC.

Inventor： Yeongshin YEO ,  Hwansun LEE ,  Youngju YOU

IPC: H04B10/2575 ,  H04B7/022 ,  H04B10/40

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.

公开(公告)号：US20170111957A1

公开(公告)日：2017-04-20

申请号：US15395720

申请日：2016-12-30

Applicant: SOLiD, INC.

Inventor： Hwansun LEE

IPC: H04W88/08 ,  H04B1/40

CPC classification number: H04W88/085 ,  H04B1/00 ,  H04B1/3888 ,  H04B1/40

Abstract: A signal processing device according to an exemplary embodiment of the inventive concept can integrate a power amplifier, a duplexer, and a linearizer as a module to improve the convenience of management and to improve flexibility and extensibility so as to be transformable corresponding to a change in system development concept.

公开(公告)号：US09572178B1

公开(公告)日：2017-02-14

申请号：US15079442

申请日：2016-03-24

Applicant: SOLiD, INC.

Inventor： Kwangnam Seo ,  Doyoon Kim ,  Hyoungho Kim

IPC: H04W88/00 ,  H04W72/12 ,  H04W72/04 ,  H04W88/08

CPC classification number: H04B1/40 ,  H04W88/085

Abstract: The inventive concept relates to a distributed antenna system (DAS), and more particularly, to an uplink signal transmission operation of each of node units constituting a DAS. A node unit of a DAS includes a signal input/output unit configured to receive m uplink signals from m lower node units and output the m uplink signals, and a multiplexer configured to generate a single uplink signal by selectively outputting any one of the m uplink signals at an interval of a predetermined output time. Accordingly, it is possible to provide a DAS capable of processing and outputting, as one signal, uplink signals received from a plurality of remote units, without any error.

Abstract translation: 本发明构思涉及分布式天线系统（DAS），更具体地，涉及构成DAS的每个节点单元的上行链路信号传输操作。 DAS的节点单元包括：信号输入/输出单元，被配置为从m个下位单元接收m个上行链路信号并输出​​m个上行链路信号;以及多路复用器，被配置为通过选择性地输出m个上行链路中的任何一个来生成单个上行链路信号 信号以预定的输出时间间隔。 因此，可以提供能够处理和输出从多个远程单元接收的上行链路信号作为一个信号的DAS，而没有任何错误。

公开(公告)号：US20160337998A1

公开(公告)日：2016-11-17

申请号：US15106354

申请日：2014-08-14

Applicant: SOLiD, INC.

Inventor： Hyunchae KIM

IPC: H04W56/00 ,  H04L5/00 ,  H04J11/00

CPC classification number: H04W56/0035 ,  H04B7/155 ,  H04J11/0069 ,  H04J2211/005 ,  H04L5/0007 ,  H04L27/2628 ,  H04W56/0005

Abstract: There is provided a device for detecting LTE frame synchronization, including: a CP correlator calculating a correlation of a cyclic prefix (CP) included in each orthogonal frequency division multiplexing (OFDM) symbol of an LTE signal processed digital conversion; a frequency offset compensation unit compensating a frequency offset for a synchronization signal in the LTE signal by using a symbol frequency offset calculated based on the CP correlation; a synchronization signal correlation calculation unit performing a correlation calculation in a time domain with respect to the synchronization signal, of which the frequency offset is compensated, by considering a symbol start timing obtained based on the CP correlation; and a frame synchronization detection unit detecting the frame synchronization of the LTE signal based on a result of the correlation calculation for the synchronization signal.

Abstract translation: 提供了一种用于检测LTE帧同步的装置，包括：CP相关器，其计算包括在LTE信号处理的数字转换的每个正交频分复用（OFDM）符号中的循环前缀（CP）的相关性; 频率偏移补偿单元，其通过使用基于所述CP相关计算的符号频率偏移来补偿所述LTE信号中的同步信号的频率偏移; 同步信号相关计算单元通过考虑基于CP相关获得的符号开始定时，对相对于补偿了频率偏移的同步信号的时域执行相关计算; 以及帧同步检测单元，基于同步信号的相关计算结果来检测LTE信号的帧同步。

公开(公告)号：US09490890B2

公开(公告)日：2016-11-08

申请号：US15079687

申请日：2016-03-24

Applicant: SOLiD, INC.

Inventor： Yongki Cho

IPC: H04B7/00 ,  H04B7/155 ,  H04B7/04

CPC classification number: H04B7/15507 ,  H04B1/40 ,  H04B7/022 ,  H04B7/04 ,  H04B7/15535 ,  H04W88/085 ,  H04W92/12

Abstract: A base station signal matching device is a base station signal matching device mounted in a distributed antenna system for amplifying a received base station signal and transmitting the amplified base station signal to a user terminal. The base station signal matching device includes a first unit for generating first and second branch base station signals by using a power division function based on the base station signal, and transmitting the second branch base station signal to a third unit, and a second unit for matching the first branch base station signal to be suitable for signal processing of the distributed antenna system.

Abstract translation: 基站信号匹配装置是安装在分布式天线系统中的基站信号匹配装置，用于放大接收到的基站信号并将放大的基站信号发送给用户终端。 基站信号匹配装置包括：第一单元，用于通过使用基于该基站信号的功率分配功能产生第一和第二分支基站信号，并将第二分支基站信号发送到第三单元;以及第二单元， 匹配第一分支基站信号以适合分布式天线系统的信号处理。

公开(公告)号：US20160212640A1

公开(公告)日：2016-07-21

申请号：US15084603

申请日：2016-03-30

Applicant: SOLiD, INC.

Inventor： Doyoon KIM

IPC: H04W24/04 ,  H04W24/10

CPC classification number: H04L41/06 ,  H04B7/04 ,  H04B17/00 ,  H04B17/15 ,  H04B17/29 ,  H04W24/04 ,  H04W24/08 ,  H04W24/10

Abstract: A monitoring device for a distributed antenna system including at least two node units communicatively coupled to each other transmits, to at least one target node unit among the node units, a data dump command for a first target signal passing through a first signal path in the target node unit. The monitoring device receives, from the target node unit, response data corresponding to the data dump command. The monitoring device generates first quality information indicative of the quality of the first target signal by using the response data.

Abstract translation: 一种用于分布式天线系统的监视装置，包括至少两个彼此通信地耦合的节点单元，向节点单元中的至少一个目标节点单元发送经过第一信号路径的第一目标信号的数据转储命令 目标节点单元。 监视装置从目标节点单元接收与数据转储命令对应的响应数据。 监视装置通过使用响应数据生成表示第一目标信号的质量的第一质量信息。

公开(公告)号：US20160211893A1

公开(公告)日：2016-07-21

申请号：US15084716

申请日：2016-03-30

Applicant: SOLiD, INC.

Inventor： Hyoungho KIM ,  Doyoon KIM

IPC: H04B7/04

CPC classification number: H04W88/085 ,  H04B7/022

Abstract: A distributed antenna system (DAS) according to an aspect of the inventive concept includes a first node unit for receiving first digital data in accordance with a digital interface standard from a base station, converting the first digital data into second digital data in accordance with a DAS frame standard, and a second node unit for receiving the second digital data from the first node unit, and restoring the first digital data based on the second digital data.

Abstract translation: 根据本发明构思的一个方面的分布式天线系统（DAS）包括：第一节点单元，用于根据来自基站的数字接口标准接收第一数字数据，根据第一数字数据将第一数字数据转换成第二数字数据 DAS帧标准，以及第二节点单元，用于从第一节点单元接收第二数字数据，以及基于第二数字数据恢复第一数字数据。

公开(公告)号：US20160204928A1

公开(公告)日：2016-07-14

申请号：US15079880

申请日：2016-03-24

Applicant: SOLiD, INC.

Inventor： Yongki CHO ,  Yeongshin YEO

IPC: H04L5/14 ,  H04B1/52

CPC classification number: H04L5/14 ,  H04B1/52 ,  H04B1/525 ,  H04L5/1469

Abstract: According to an example embodiment of the inventive concept, a master unit for time division duplex includes a passive signal distributor for outputting, to a second node, a downlink signal input through a first node, and outputting, to the first node, an uplink signal input through a third node, and a signal transceiver for transmitting, to a remote unit, the downlink signal input from the second node, and outputting, to the third node, an uplink amplification signal received from the remote unit.

Abstract translation: 根据本发明构思的示例性实施例，用于时分双工的主单元包括无源信号分配器，用于向第二节点输出通过第一节点输入的下行链路信号，并向第一节点输出上行链路信号 通过第三节点输入的信号收发器和用于向远程单元发送从第二节点输入的下行链路信号并向第三节点发送从远程单元接收的上行链路放大信号的信号收发器。

公开(公告)号：US07794376B2

公开(公告)日：2010-09-14

申请号：US12290874

申请日：2008-11-04

Applicant: Cheng I. Chou

Inventor： Cheng I. Chou

IPC: A63B21/08 ,  A63B23/02 ,  A63B21/068

CPC classification number: A63B21/0615 ,  A63B21/00181 ,  A63B21/08 ,  A63B21/159 ,  A63B21/4031 ,  A63B21/4047 ,  A63B23/0211 ,  A63B23/0227 ,  A63B2208/0238

Abstract: An abdominal muscle exercise machine that generally contains a diagonal member with an adjustable seat and a backrest and a pivot member that pivots with respect to the diagonal member. A chest push can be mechanically coupled to the pivot member through an adjustable force multiplier. An optional counterweight can be placed near one end of the pivot member to lighten the force, or an optional load weight can be placed near the other end of the pivot member to increase the force. The pivot member can be constructed to telescope or otherwise adjust for different body sizes. The machine provides a smooth exercise where the top and bottom portions of the body move together in a linked fashion. The machine of the present invention works without heavy external weights.

Abstract translation: 一种腹肌锻炼机，其通常包括具有可调节座椅的对角构件和靠背以及相对于对角构件枢转的枢转构件。 胸部推动可以通过可调节的力乘数机械联接到枢转构件。 可选的配重可以放置在靠近枢转构件的一端以减轻力，或者可选的负载重量可以放置在枢转构件的另一端附近以增加力。 枢轴构件可以被构造成望远镜或以其他方式调整以适应不同的身体尺寸。 该机器提供平滑的运动，其中身体的顶部和底部以连接的方式一起移动。 本发明的机器在没有重的外部重量的情况下工作。

公开(公告)号：US12273833B2

公开(公告)日：2025-04-08

申请号：US17780806

申请日：2019-12-03

Applicant: SOLiD, INC.

Inventor： Donghee Kwon ,  Hoopyo Hong

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

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.