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公开(公告)号：US20170366150A1
公开(公告)日：2017-12-21
申请号：US15538529
申请日：2015-12-21
Applicant: SOLiD, INC.
Inventor： Hwansun LEE
CPC classification number: H03G3/3036 , H03F1/3247 , H03F3/189 , H03F3/68 , H03F2200/111 , H03F2200/171 , H03F2200/411 , H03F2200/429 , H03G3/3052
Abstract: According to one mode of the inventive concept, an amplification device includes a first amplifier configured to amplify an input multi-band signal to a first level, a separating unit configured to separate the multi-band signal having the first level into a first band signal and a second band signal, and a second amplifier configured to amplify the second band signal to a second level.
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公开(公告)号：US20170359103A1
公开(公告)日：2017-12-14
申请号：US15540625
申请日：2015-12-30
Applicant: SOLiD, INC.
Inventor： Doyoon KIM , Kwangnam SEO
CPC classification number: H04B7/02 , H04B7/022 , H04B10/25753 , H04L25/03 , H04L25/26 , H04W88/085
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：US09826573B2
公开(公告)日：2017-11-21
申请号：US15395720
申请日：2016-12-30
Applicant: SOLiD, INC.
Inventor： Hwansun Lee
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.
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公开(公告)号：US09774438B2
公开(公告)日：2017-09-26
申请号：US15079880
申请日：2016-03-24
Applicant: SOLiD, INC.
Inventor： Yongki Cho , Yeongshin Yeo
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.
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公开(公告)号：US20170222740A1
公开(公告)日：2017-08-03
申请号：US15501002
申请日：2015-12-04
Applicant: SOLiD, INC.
Inventor： Youngju YOU
CPC classification number: H04B17/16 , H04B1/0475 , H04B17/17
Abstract: A remote apparatus includes: a plurality of sub amplification units amplifying radio frequency (RF) signals of different frequency bands, respectively; a test signal generation unit generating test signals of a frequency band for any one sub amplification unit among the plurality of sub amplification units; a conversion unit converting intermodulation (IM) signals generated in response to the test signals into a plurality of conversion IM signals by using a conversion signal of which a frequency is swept; and a control unit determining a degree of an intermodulation distortion by the any one sub amplification unit based on signal levels of the plurality of the conversion IM signals.
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Patent Agency Ranking
公开(公告)号：US20170194986A1
公开(公告)日：2017-07-06
申请号：US15397921
申请日：2017-01-04
Applicant: SOLiD, INC.
Inventor： Donghoon HONG , Hosik JANG , Youngin KIM
Abstract: A data compression device includes an analog to digital converter (ADC) configured to convert an analog signal into a digital signal including in-phase and quadrature components; and a compressor configured to generate a 28-bit fixed-point digital signal in which bits of the in-phase and quadrature components are alternately arranged, generate an exponent bit string by comparing n most significant bits of a data bit string excluding two sign bits in the 28-bit fixed-point digital signal with preset mapping data, wherein the exponent bit string includes 4 bits, generate a mantissa bit string composed of 14 bits corresponding to up to 14th bit from a bit next to the n most significant bits of the data bit string, and generate a 20-bit floating point digital signal by combining the two sign bits, the exponent bit string, and the mantissa bit string, wherein n is a natural number equal to or greater than 2 and equal to or less than 12.
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公开(公告)号：US20170126362A1
公开(公告)日：2017-05-04
申请号：US15091912
申请日：2016-04-06
Applicant: SOLiD Inc.
Inventor： Young Man CHO
IPC: H04L1/00 , H04B17/309 , H04L27/00
CPC classification number: H04L1/0077 , H04B7/024 , H04B17/309 , H04L27/0004
Abstract: A technology related to a distributed antenna system is disclosed. In an exemplary embodiment, a distributed antenna system may include a master unit and a plurality of remote units. The master unit may be interfaced with a wireless communications network and perform a bidirectional simultaneous digital radio frequency distribution of a wireless signal. The plurality of remote units may be each coupled to the master unit, and each perform a wireless transmission or reception of a split radio frequency signal to or from terminals located within a coverage. The master unit and the plurality of remote units may transmit or receive digital radio frequency signals in a wavelet transform domain. The master unit may determine whether the digital radio frequency signal, transmitted by each of the remote units, is normal, and merge the digital radio frequency signals.
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公开(公告)号：US20170111717A1
公开(公告)日：2017-04-20
申请号：US15391971
申请日：2016-12-28
Applicant: SOLID, INC.
Inventor： Do Yoon KIM , Kwang Nam SEO , Hee Gon KIM
IPC: H04Q11/00 , H04B10/25 , H04B10/29 , H04B10/275
CPC classification number: H04Q11/0005 , H04B10/038 , H04B10/0771 , H04B10/25 , H04B10/275 , H04B10/2755 , H04B10/29 , H04Q2011/0045
Abstract: A master unit configured to manage a plurality of remote units connected in a ring topology, the master unit comprising: a network management section configured to transmit at least one of a path-state monitoring control signal and a delay measurement control signal to the plurality of remote units in a first direction and a second direction which is a reverse direction of the first direction, and receives an acknowledgement signal in response to the at least one of a path-state monitoring control signal and a delay measurement control signal; and switching control means for transmitting a forward signal received from a base station in the first direction, and transmitting a switching control signal in the second direction when a defect is detected in any remote unit among the plurality of remote units by the network management section.
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公开(公告)号：US09608847B2
公开(公告)日：2017-03-28
申请号：US15079391
申请日：2016-03-24
Applicant: SOLiD, INC.
Inventor： Yeongshin Yeo
CPC classification number: H04L25/20 , H04L5/0098
Abstract: A device included in an analog distributed antenna system includes a first analog signal processing unit for receiving an analog communication signal, a first modulation/demodulation unit for converting a digital Ethernet signal received from an Ethernet network into an analog Ethernet signal, a multiplexing unit for multiplexing the analog communication signal signal-processed by the analog signal processing unit and the analog Ethernet signal converted by the modulation/demodulation unit, and a transmission unit for transmitting, to other devices included in the analog distributed antenna system, the analog communication signal and the analog Ethernet signal, which are multiplexed by the multiplexing unit.
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公开(公告)号：US09602211B2
公开(公告)日：2017-03-21
申请号：US15079783
申请日：2016-03-24
Applicant: SOLiD, INC.
Inventor： Yeongshin Yeo , Hwansun Lee , Youngju You
IPC: H04B10/00 , H04B10/2575
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.
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