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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。
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公开(公告)号：US20170370766A1
公开(公告)日：2017-12-28
申请号：US15540494
申请日：2015-12-29
Applicant: SOLiD, INC.
Inventor： Hyoungho KIM , Kwangnam SEO , Doyoon KIM
CPC classification number: G01G23/10 , G01G3/1414 , G06F3/05 , H03D7/125 , H03D7/1441 , H03M1/0626 , H03M1/12 , H03M1/747 , H04B1/0483 , H04L25/03038 , H04L27/2647
Abstract: According to an aspect of the inventive concept, there is provided an apparatus for processing an output signal of an analog-digital converter, includes: a first frequency conversion unit for converting a frequency of the output signal of the analog-digital converter so that a band where spurious components exist moves to a band where direct current components exist in the output signal of the analog-digital converter; a spurious component blocking unit for eliminating, from an output signal of the first frequency conversion unit, spurious components which have moved to the band where direct current components exist; and a second frequency conversion unit for restoring a frequency of an output signal of the spurious component blocking unit to the original frequency of the output signal of the analog-digital converter.
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公开(公告)号：US20170118768A1
公开(公告)日：2017-04-27
申请号：US15401241
申请日：2017-01-09
Applicant: SOLID, INC.
Inventor： Kwangnam SEO , Hyoungho KIM , Doyoon KIM
CPC classification number: H04B7/04 , 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 multiplexer configured to generate a single uplink signal by selectively outputting any one of m uplink signals received from m lower node units at an interval of a predetermined output time, where m is a positive integer greater than 1, and a down-sampler configured to output a transmission uplink signal by converting a sampling rate of the single uplink signal to correspond to a sampling rate of any one of the m uplink signals. 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.
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4.发明申请公开(公告)号：US20190319676A1
公开(公告)日：2019-10-17
申请号：US16455036
申请日：2019-06-27
Applicant: SOLiD, INC.
Inventor： Hyoungho KIM , Doyoon Kim , Kwangnam Seo
Abstract: A distributed antenna system includes a plurality of head-end devices for each receiving mobile communication signals from at least one corresponding base station, a hub communicatively coupled to the plurality of head-end devices, and a plurality of remote devices communicatively coupled to the hub, wherein the hub configured to distribute the mobile communication signals received from each of the plurality of head-end devices to the plurality of remote devices, wherein each of the plurality of remote devices is remotely disposed to transmit the distributed mobile communication signals to a terminal in service coverage, and wherein the hub includes a mixing processing stage configured to perform digital mixing processing on the mobile communication signals respectively received from the plurality of head-end devices, and a crest factor reduction (CFR) module disposed posterior to the mixing processing stage, with respect to a signal transmission direction.
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5.发明申请公开(公告)号：US20180198493A1
公开(公告)日：2018-07-12
申请号：US15911736
申请日：2018-03-05
Applicant: SOLiD, INC.
Inventor： Hyoungho KIM , Doyoon KIM , Kwangnam SEO
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.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20160205006A1
公开(公告)日：2016-07-14
申请号：US15080084
申请日：2016-03-24
Applicant: SOLiD, INC.
Inventor： Hyoungho KIM , Doyoon KIM , Yeongshin YEO
CPC classification number: H04B17/364 , H04B1/40 , H04B7/024 , H04B7/04 , H04L43/0864 , H04W24/06 , H04W88/085
Abstract: A node unit of distributed antenna system, the node unit comprises a delay measuring part configured to transmit a first test signal for delay measurement to an upper adjacent node unit and detect the first test signal looped back via the upper adjacent node unit and measure a round trip delay between the node unit and the upper adjacent node unit, and a delay providing part disposed on a signal transmission path through which a second test signal for delay measurement, to be transmitted from a lower adjacent node unit, is to be looped back to the lower adjacent node unit, and configured to provide a delay corresponding to the round trip delay.
Abstract translation: 分布式天线系统的节点单元，节点单元包括延迟测量部分，被配置为向上部相邻节点单元发送用于延迟测量的第一测试信号，并且检测经由上部相邻节点单元环回的第一测试信号，并测量圆 在节点单元和上部相邻节点单元之间的跳闸延迟，以及设置在信号传输路径上的延迟提供部分，通过该延迟提供部分将要从下部相邻节点单元发送的用于延迟测量的第二测试信号环回到 下相邻节点单元，并且被配置为提供对应于往返延迟的延迟。
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公开(公告)号：US20180027431A1
公开(公告)日：2018-01-25
申请号：US15546186
申请日：2015-04-23
Applicant: SOLiD, INC.
Inventor： Youngman CHO , Doyoon KIM , Jinhwa KU , Hyoungho KIM
IPC: H04W24/04 , H04B17/336
Abstract: The present invention provides a distributed antenna system for automatically detecting an abnormally operating node unit. According to an embodiment of the present invention, a node unit of the distributed antenna system includes a signal input unit configured to receive and output first through n-th state information from n other node units connected to the node unit, where n is a natural number greater than or equal to 2; and a controller configured to analyze the first through n-th state information and to determine states of uplink signals respectively corresponding to the first through n-th state information. Each of the n other node units may analyze a signal received through a service antenna and generate the state information.
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8.发明申请公开(公告)号：US20170117977A1
公开(公告)日：2017-04-27
申请号：US15401203
申请日：2017-01-09
Applicant: SOLID, INC.
Inventor： Hyoungho KIM , Doyoon KIM , Yeongshin YEO
IPC: H04B17/364 , H04W24/06 , H04B7/04
CPC classification number: H04B17/364 , H04B1/40 , H04B7/024 , H04B7/04 , H04L43/0864 , H04W24/06 , H04W88/085
Abstract: A node unit of distributed antenna system, the node unit comprises a delay measuring part configured to transmit a first test signal for delay measurement to an upper adjacent node unit and detect the first test signal looped back via the upper adjacent node unit and measure a round trip delay between the node unit and the upper adjacent node unit, and a delay providing part disposed on a signal transmission path through which a second test signal for delay measurement, to be transmitted from a lower adjacent node unit, is to be looped back to the lower adjacent node unit, and configured to provide a delay corresponding to the round trip delay.
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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
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。
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公开(公告)号：US20190014484A1
公开(公告)日：2019-01-10
申请号：US16131312
申请日：2018-09-14
Applicant: SOLiD, INC.
Inventor： Hyoungho KIM , Doyoon KIM
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.
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