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151.发明授权公开(公告)号：US10673492B2
公开(公告)日：2020-06-02
申请号：US16118793
申请日：2018-08-31
Applicant: SOLiD, INC.
Inventor： Yong Ki Cho
Abstract: There is provided a first unit which constitutes a point-to-multipoint communication system and is connected to communicate with each of a plurality of second units. The first unit includes a control signal extraction unit, a signal switching unit and a controller. The control signal extraction unit extracts first control signals respectively transmitted from the plurality of second units. The signal switching unit includes a switching circuit, and selects any one of the first control signals respectively received through individual signal transmission lines. The controller receives the first control signal selected by the signal switching unit, determines an allocation ID to be allocated to a second unit corresponding to the selected first control signal based on the initial identification information of the selected first control signal, and controls the determined allocation ID to be transmitted to the corresponding second unit.
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公开(公告)号：US20200162157A1
公开(公告)日：2020-05-21
申请号：US16752982
申请日：2020-01-27
Applicant: SOLiD, INC.
Inventor： Ok Jin Kim
IPC: H04B10/079 , H04L7/00 , H04J3/06 , H04L7/04 , H04B10/2575
Abstract: The present invention provides a method of optical transmission delay compensation of a system including a main unit and a remote unit, wherein the main unit and the remote unit are connected to each other through an optical transmission line, including: receiving a reference signal, by the remote unit, generated by the main unit through the optical transmission line; analog converting the reference signal and performing analog processing on the reference signal; converting the analog-processed reference signal into an RF signal and radiating the RF signal; and measuring a delay time until the reference signal is generated and radiated as the RF signal. Accordingly, it is possible to obtain an effect of preventing degradation of service quality due to interference by synchronizing remote units and improving the service quality.
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153.发明申请公开(公告)号：US20200119700A1
公开(公告)日：2020-04-16
申请号：US16711705
申请日：2019-12-12
Applicant: Solid, Inc.
Inventor： Kwang Nam Seo , Do Yoon Kim , Hyoung Ho Kim
Abstract: The present invention, which relates to a multi-path communication device for sharing a feedback path for digital pre-distortion, includes: a DPD processing unit configured to output a plurality of pre-distorted signals by respectively pre-distorting a plurality of input signals, to output an nth control signal when an nth input signal is input, and to output an nth pre-distorted signal using an nth feedback signal input in response to the nth control signal; a power amplifying unit configured to amplify each of the plurality of pre-distorted signals and output a plurality of amplified signals; a signal combining unit configured to combine some of each of the plurality of amplified signals and output combined feedback signal; and a signal selection unit configured to select and output only the nth feedback signal from the combined feedback signal according to the input nth control signal, thereby preventing an increase in the size of a device and manufacturing cost thereof caused by a plurality of DPD feedback paths.
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公开(公告)号：US20200092154A1
公开(公告)日：2020-03-19
申请号：US16442460
申请日：2019-06-15
Applicant: SOLiD, Inc.
Inventor： Dong Hee KWON , Hoo Pyo HONG , Young Man CHO , Dae Young KIM , Hyun Jung KIM
IPC: H04L27/34 , H04L12/709 , H04L12/721 , H04L12/851
Abstract: A TSN-based distributed antenna system including a headend unit, one or more TSN switches, and one or more remote units and a fronthaul transport network constituted by the headend unit, the TSN switch, and the remote unit is provided. The packet-based fronthaul network constituted by the headend unit, the TSN switch, and the remote unit transmits traffic in a time-deterministic manner while minimizing packet loss through Ethernet to which TSN standards are applied.
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公开(公告)号：US10554296B2
公开(公告)日：2020-02-04
申请号：US15830794
申请日：2017-12-04
Applicant: SOLiD, INC.
Inventor： Taehyeong Kim , Jongyeong Lim , Jongsin Kim , Eunho Lee
IPC: H04B10/03 , H04B10/038 , H04B10/032
Abstract: Disclosed is an optical network system including a upper network equipment, a lower network equipment, and a plurality of transfer network equipments connecting the upper network equipment and the lower network equipment through independent optical links, wherein the lower network equipment performs switching such that transmission and reception of an optical signal are performed through an optical link of a standby line when a failure occurs in at least one of an optical link used as a working line, an optical interface device associated with the working line in the upper network equipment, and a transfer network equipment associated with the working line.
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Patent Agency Ranking
公开(公告)号：US20200021508A1
公开(公告)日：2020-01-16
申请号：US16505905
申请日：2019-07-09
Applicant: SOLiD INC.
Inventor： Ok Jin KIM
Abstract: A service capacity distribution method of a distributed antenna system includes: monitoring an operating state of each of a plurality of remote units; analyzing a usage pattern for the plurality of service units based on the monitored operating state; and distributing the service capacity of each of the plurality of remote units based on the analyzed usage pattern.
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公开(公告)号：US10536120B2
公开(公告)日：2020-01-14
申请号：US16077917
申请日：2016-03-28
Applicant: SOLiD, INC.
Inventor： Kwang Nam Seo , Do Yoon Kim , Hyoung Ho Kim
Abstract: The present invention, which relates to a multi-path communication device for sharing a feedback path for digital pre-distortion, includes: a DPD processing unit configured to output a plurality of pre-distorted signals by respectively pre-distorting a plurality of input signals, to output an nth control signal when an nth input signal is input, and to output an nth pre-distorted signal using an nth feedback signal input in response to the nth control signal; a power amplifying unit configured to amplify each of the plurality of pre-distorted signals and output a plurality of amplified signals; a signal combining unit configured to combine some of each of the plurality of amplified signals and output combined feedback signal; and a signal selection unit configured to select and output only the nth feedback signal from the combined feedback signal according to the input nth control signal, thereby preventing an increase in the size of a device and manufacturing cost thereof caused by a plurality of DPD feedback paths.
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158.发明授权公开(公告)号：US10523452B2
公开(公告)日：2019-12-31
申请号：US15540638
申请日：2015-12-30
Applicant: SOLiD, INC.
Inventor： Doyoon Kim
IPC: H04L12/18 , H04L12/861
Abstract: Provided are a node unit including a queuing engine for multicasting Ethernet data, and a distributed antenna system including the same. The node unit is a node unit which is branch-connected to a plurality of lower nodes, and comprises: a media access control (MAC) module; and a queuing engine for interfacing Ethernet data between the MAC module and the plurality of branch-connected lower nodes, wherein the queuing engine multicasts Ethernet data received from the MAC module to the plurality of branch-connected lower nodes, transfers Ethernet data received from the plurality of branch-connected lower nodes to the MAC module, wherein the queuing engine comprises a buffer for buffering Ethernet data received from the plurality of branch-connected lower nodes, and outputting the buffered Ethernet data to the MAC module.
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公开(公告)号：US10516766B2
公开(公告)日：2019-12-24
申请号：US15511462
申请日：2014-09-17
Applicant: SOLiD, INC.
Inventor： Hyunchae Kim
Abstract: A base station system includes a main conversion unit configured to receive a first downlink frame conforming to a first protocol and a second downlink frame conforming to a second protocol, and configured to reconstruct the first and second downlink frames to conform to a third protocol and generate a downlink transmit frame; and a radio unit including a remote conversion unit that receives the downlink transmission frame and disassembles the received downlink transmission frame to output at least one of the first and second downlink frames.
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160.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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