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公开(公告)号：US09629008B2
公开(公告)日：2017-04-18
申请号：US15084603
申请日：2016-03-30
Applicant: SOLiD, INC.
Inventor： Doyoon Kim
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.
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12.发明授权Node unit capable of measuring delay and distributed antenna system including the same 有权能够测量延迟的节点单元和包括其的分布式天线系统公开(公告)号：US09584386B2
公开(公告)日：2017-02-28
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：US10716011B2
公开(公告)日：2020-07-14
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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14.发明授权公开(公告)号：US10693527B2
公开(公告)日：2020-06-23
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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公开(公告)号：US10396918B2
公开(公告)日：2019-08-27
申请号：US15401203
申请日：2017-01-09
Applicant: SOLID, INC.
Inventor： Hyoungho Kim , Doyoon Kim , Yeongshin Yeo
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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Patent Agency Ranking
公开(公告)号：US10193599B2
公开(公告)日：2019-01-29
申请号：US15401241
申请日：2017-01-09
Applicant: SOLID, INC.
Inventor： Kwangnam Seo , Hyoungho Kim , Doyoon Kim
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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公开(公告)号：US11025306B2
公开(公告)日：2021-06-01
申请号：US15540625
申请日：2015-12-30
Applicant: SOLiD, INC.
Inventor： Doyoon Kim , Kwangnam Seo
Abstract: According to an aspect of the inventive concept, there is provided a signal processing method performed in a distributed antenna system, includes extracting at least a part of sample data corresponding to an occupied frequency band from a digitized analog RF signal; and combining the extracted sample data.
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公开(公告)号：US10820215B2
公开(公告)日：2020-10-27
申请号：US15546186
申请日：2015-04-23
Applicant: SOLiD, INC.
Inventor： Youngman Cho , Doyoon Kim , Jinhwa Ku , Hyoungho Kim
IPC: H04W24/00 , H04W24/04 , H04B17/19 , H04B17/354 , H04B17/10 , H04B17/336 , H04W88/08
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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19.发明申请公开(公告)号：US20190380102A1
公开(公告)日：2019-12-12
申请号：US16548929
申请日：2019-08-23
Applicant: SOLiD, INC.
Inventor： Doyoon Kim , Hyoungho Kim
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.
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公开(公告)号：US10397890B2
公开(公告)日：2019-08-27
申请号：US15540651
申请日：2014-12-31
Applicant: SOLiD, INC.
Inventor： Doyoon Kim , Hyoungho Kim
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.
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