公开(公告)号：US20180116012A1

公开(公告)日：2018-04-26

申请号：US15848331

申请日：2017-12-20

Applicant: SOLiD, INC.

Inventor： Hyoungho KIM ,  Doyoon KIM

IPC: H04W88/08 ,  H04B7/022

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.

公开(公告)号：US20170367061A1

公开(公告)日：2017-12-21

申请号：US15540651

申请日：2014-12-31

Applicant: SOLiD, INC.

Inventor： Doyoon KIM ,  Hyoungho KIM

IPC: H04W56/00 ,  H04L7/00 ,  H04W88/08

CPC classification number: H04W56/005 ,  H04B17/10 ,  H04B17/104 ,  H04B17/14 ,  H04L7/0041 ,  H04W56/007 ,  H04W88/085

Abstract: Provided is a node unit which is branch-connected to another communication node via a transport medium, the node unit comprising: a delay measurement unit which transmits a test signal for measuring a delay to an adjacent node unit of the branch-connected upper stage via the transport medium and detects a loopback signal to which the test signal is looped back via the adjacent node unit of the upper stage, thereby measuring an upper stage transmission delay between the adjacent node unit of the upper stage and the node unit; a delay summation unit which, when an adjacent node unit of the branch-connected lower stage exists, receives a lower stage transmission delay transmitted from the adjacent node unit of the lower stage, and calculates a summed transmission delay by summing the upper stage transmission delay and the lower stage transmission delay; and a control unit which transmits the summed transmission delay to the adjacent node unit of the upper stage.

公开(公告)号：US20160212699A1

公开(公告)日：2016-07-21

申请号：US15084875

申请日：2016-03-30

Applicant: SOLiD, INC.

Inventor： Hyoungho KIM ,  Kwon KIM ,  Jonggu LEE ,  Heegon KIM

IPC: H04W52/02

CPC classification number: H04W52/0206 ,  H04B1/40

Abstract: A node unit of a distributed antenna system includes a power supply unit for supplying power for operating the node unit, a digital part operated by the power supplied from the power supply unit, the digital part performing digital processing on input relay signals and outputting the digital-processed relay signals, and a controller for disabling an output of the digital part in response to a first control command for instructing a reset of the power supply unit or a second control command for instructing a reset of the digital part.

Abstract translation: 分布式天线系统的节点单元包括供电单元，用于提供用于操作节点单元的电力，由从电源单元提供的电力操作的数字部分，数字部分对输入的中继信号执行数字处理，并输出数字 处理的继电器信号，以及用于响应于用于指示电源单元的复位的第一控制命令而禁用数字部分的输出的控制器或用于指示数字部分的复位的第二控制命令。

公开(公告)号：US20160211891A1

公开(公告)日：2016-07-21

申请号：US15084749

申请日：2016-03-30

Applicant: SOLiD, INC.

Inventor： Hyoungho KIM ,  Doyoon KIM ,  Kwangnam SEO

IPC: H04B7/02 ,  H04L27/26

CPC classification number: H04B7/022 ,  H04L27/2614 ,  H04L27/2624

Abstract: A distributed antenna system includes a plurality of head-end units for each receiving mobile communication signals from at least one corresponding base station, a hub unit communicatively coupled to the plurality of head-end units, and a plurality of remote units communicatively coupled to the hub unit, wherein the hub unit configured to distribute the mobile communication signals received from each of the plurality of head-end units to the plurality of remote units, wherein each of the plurality of remote units is remotely disposed to transmit the distributed mobile communication signals to a terminal in service coverage, and wherein the hub unit includes a mixing processing stage configured to perform digital mixing processing on the mobile communication signals respectively received from the plurality of head-end units, and a crest factor reduction (CFR) module disposed posterior to the mixing processing stage, with respect to a signal transmission direction.

Abstract translation: 分布式天线系统包括多个头端单元，用于各自接收来自至少一个对应的基站的移动通信信号，通信地耦合到多个头端单元的集线器单元，以及多个远程单元，其通信地耦合到 集线器单元，其中所述集线器单元被配置为将从所述多个头端单元中的每一个接收的移动通信信号分配给所述多个远程单元，其中所述多个远程单元中的每一个被远程布置以发送所述分布式移动通信信号 到服务覆盖的终端，其中，所述集线器单元包括混合处理级，其被配置为对从所述多个头端单元分别接收的移动通信信号执行数字混合处理，以及设置在后端的波峰因数降低（CFR）模块 到混合处理阶段，相对于信号传输方向。