Patents Assigned to SOLID, INC.
  • Distributed antenna system using reconfigurable frame structure and method of operation thereof
    Patent number: 11184054
    Abstract: According to an aspect of the present disclosure, a method of processing a data stream in a node unit included in a distributed antenna system includes: receiving frame layout information; changing a frame layout of a predetermined transmission frame based on the received frame layout information; and framing a plurality of data streams based on the changed frame layout.
    Type: Grant
    Filed: May 27, 2019
    Date of Patent: November 23, 2021
    Assignee: SOLiD, INC.
    Inventors: Dong Hee Kwon, Hoo Pyo Hong
  • REPEATER AND METHOD FOR MEASURING SIGNAL-TO-INTERFERENCE-PLUS- NOISE RATIO THEREOF
    Publication number: 20210359776
    Abstract: Provided is an SINR measurement method of a repeater, the SINR measurement method including: obtaining SSBs from a plurality of base stations; obtaining cross-correlation for each of PSS symbols included in the obtained SSBs; measuring noise power based on the obtained SSBs; obtaining signal power and interference signal power based on a dot product of the cross-correlation for each of the PSS symbols; and measuring the SINR based on the signal power, the interference signal power, and the noise power.
    Type: Application
    Filed: May 13, 2021
    Publication date: November 18, 2021
    Applicant: SOLID, INC.
    Inventor: Nag Won Kwon
  • Repeater and operating method thereof
    Patent number: 11101970
    Abstract: An operating method of a repeater, the operating method comprises: receiving a first communication signal according to a first mobile communication standard, generating a time division duplex (TDD) switching signal based on information about a start point of the received first communication signal, and controlling switching of an uplink and a downlink of a repeater that relays a second communication signal according to a second mobile communication standard based on the generated TDD switching signal.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: August 24, 2021
    Assignee: SOLiD, INC.
    Inventors: Hyunchae Kim, Hoony Hong
  • DISTRIBUTED ANTENNA SYSTEM-BASED ON TIME SENSITIVE NETWORK
    Publication number: 20210234746
    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.
    Type: Application
    Filed: April 13, 2021
    Publication date: July 29, 2021
    Applicant: SOLiD, Inc.
    Inventors: Dong Hee KWON, Hoo Pyo HONG, Young Man CHO, Dae Young KIM, Hyun Jung KIM
  • OPTICAL MODULE ASSEMBLY
    Publication number: 20210231893
    Abstract: Provided is an optical module assembly including: an optical module body in which an optical transceiver is built; a first connector coupled to one side of the optical module body to be connected to an optical transceiver in the optical module body; a second connector, in which an insertion hole for inserting an optical cable is formed and the optical cable is inserted into the insertion hole, connected to the first connector to connect the optical cable to the optical transceiver connected to the first connector; and a disconnection unit installed on the first connector and the second connector to release the connection between the first connector and the second connector by rotation.
    Type: Application
    Filed: January 4, 2021
    Publication date: July 29, 2021
    Applicant: Solid, Inc.
    Inventors: Tae Ho Kim, In Ju Lee
  • Method of processing communication signal and communication node using the same
    Patent number: 11070256
    Abstract: A communication node processing a communication signal in a distributed antenna system includes a data appearance frequency monitor configured to receive a communication signal including a sign bit string, a count leading zero bit string, and an additional data bit string, and to monitor data appearance frequency in the count leading zero bit string included in the received communication signal, a Huffman encoder configured to encode the count leading zero bit string into a corresponding codeword according to a Huffman encoding algorithm based on the data appearance frequency in the count leading zero bit string and an additional bit allocator configured to allocate additional bits to the additional data bit string when the number of bits in the count leading zero bit string decreases during the encoding process.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: July 20, 2021
    Assignee: SOLiD, INC.
    Inventors: Youngin Kim, Seongwook Byun, Hosik Jang
  • LASER DIODE DRIVER FOR MULTI-LEVEL OPTICAL SIGNAL AND MULTI-LEVEL OPTICAL SIGNAL TRANSMISSION DEVICE INCLUDING THE SAME
    Publication number: 20210218222
    Abstract: Provided are a laser diode driver for a multilevel optical signal and a multilevel optical signal transmission device including the same, wherein the laser diode driver includes: a clock generator configured to generate and output a clock signal; a first latch configured to delay output of data corresponding to a first timing of the clock signal from among data sequentially input at each data input period; a second latch configured to delay output of data corresponding to a second timing of the clock signal from among data sequentially input at each data input period; a first synchronization processor configured to output a signal corresponding to the data input by the first latch according to the clock signal; and a second synchronization processor configured to output a signal corresponding to the data input by the second latch according to the clock signal.
    Type: Application
    Filed: January 5, 2021
    Publication date: July 15, 2021
    Applicant: SOLiD, INC.
    Inventor: Won Song CHANG
  • Base station interface module and distributed antenna system having the same
    Patent number: 11057961
    Abstract: A base station interface module included in a distributed antenna system includes: a separator configured to separate a base station signal input from a base station and output first and second base station signals; a pre-compensator configured to compensate for at least one of an amplitude and a phase of the first base station signal based on a preset compensation value; a first attenuator configured to attenuate the compensated first base station signal and to output the attenuated first base station signal to the distributed antenna system; and a second attenuator configured to attenuate the second base station signal and to terminate the attenuated second base station signal.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: July 6, 2021
    Assignee: SOLiD, INC.
    Inventor: Jong Dae Byun
  • NETWORK MANAGEMENT SYSTEM AND METHOD FOR SYNCHRONIZATION OF COMMUNICATION NETWORK
    Publication number: 20210194613
    Abstract: A synchronization method of a communication network, the synchronization method comprises monitoring a connection state of second communication nodes that are synchronized using a synchronization signal provided through a first communication node to which a synchronization source is connected, determining whether the number of the connected second communication nodes exceeds a reference value according to a result of the monitoring and switching a synchronization mode of at least one second communication node when the number of the second communication nodes exceeds a reference value.
    Type: Application
    Filed: December 14, 2020
    Publication date: June 24, 2021
    Applicant: SOLiD, INC.
    Inventors: Donghee KWON, Hoopyo HONG
  • OPTICAL TRANSCEIVER AND METHOD OF AUTOMATICALLY SETTING WAVELENGTH THEREOF
    Publication number: 20210184773
    Abstract: Provided is an optical transceiver including: an optical transmitter configured to sequentially generate a plurality of optical transmission signals each including transmission wavelength information and output the plurality of optical transmission signals to a connected multiplexer/demultiplexer; and a controller configured to generate the transmission wavelength information for each of the plurality of optical transmission signals.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 17, 2021
    Applicant: SOLiD, INC.
    Inventor: Bum Soo PARK
  • Optical relay system and method for setting identification information of remote device in optical relay system
    Patent number: 11038592
    Abstract: Provided are an optical relay system and a method for setting identification information of a remote device in an optical relay system. In particular, provided are an optical relay system and a method for setting identification information of a remote device in an optical relay system in which a donor device generates unique identification information of a remote device based on temporary identification information and characteristic information received from the remote device to automatically set identification information of the remote device, and as a result, the optical relay system can be normally implemented rapidly in initial installation of the optical relay system or a change of an optical relay system environment and convenience of a manager and reliability of a mobile communication service can be improved.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: June 15, 2021
    Assignee: SOLiD, INC.
    Inventor: Youngwoo Kwon
  • Device and method of managing data of distributed antenna system
    Patent number: 11029944
    Abstract: The inventive concept relate to a device and method of managing data of a distributed antenna system. According to an embodiment of the inventive concept, a data management device of a distributed antenna system includes an unpackaging unit, when a package file which is generated by packaging firmware files of a plurality of devices constituting a distributed antenna system is input, configured to unpackage the package file; a control unit configured to determine a device requiring firmware update by comparing version information of the package file with version information of a firmware file of each of the devices included in the unpackaged package file; and a transmission unit configured to transmit a latest version of a firmware file to a device corresponding to a top node of the device requiring firmware update according to a result of the determination.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: June 8, 2021
    Assignee: SOLiD, INC.
    Inventor: Bongcheol Na
  • OPTICAL TRANSCEIVER
    Publication number: 20210167860
    Abstract: Provided is an optical transceiver including a reference tunable laser module configured to generate and output light of a reference wavelength; a first general tunable laser module configured to generate and output light of a first wavelength; and a controller configured to control a tuning operation of the first wavelength of the first general tunable laser module, based on information about a relationship between the reference wavelength and the first wavelength.
    Type: Application
    Filed: November 30, 2020
    Publication date: June 3, 2021
    Applicant: SOLiD, INC.
    Inventor: Bum Soo PARK
  • Communication device and operating method thereof
    Patent number: 11025203
    Abstract: The inventive concept relates to a communication device comprising a DPD processor configured to output a plurality of pre-distorted signals by pre-distorting each of a plurality of input signals using an extracted feedback signal, a first signal combiner configured to combine a plurality of feedback signals corresponding to the plurality of pre-distorted signals and output a combined feedback signal, an analog-to-digital converter configured to convert the combined feedback signal into a digital signal and output a digital-converted combined feedback signal and a signal extractor configured to extract the digital-converted combined feedback signal and output the extracted feedback signal.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: June 1, 2021
    Assignee: SOLiD, INC.
    Inventors: Kwangnam Seo, Doyoon Kim, Hyoungho Kim, Daesung Baek
  • Node unit and method of processing signal for distributed antenna system
    Patent number: 11025306
    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.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: June 1, 2021
    Assignee: SOLiD, INC.
    Inventors: Doyoon Kim, Kwangnam Seo
  • COMMUNICATION DEVICE AND OPERATING METHOD THEREOF
    Publication number: 20210160887
    Abstract: A method of operating a communication device including a processor and a memory, the method comprises feeding back a downlink communication signal subjected to analog signal processing, generating signal modification information according to a comparison result of the fed-back downlink communication signal and a downlink communication signal before the analog signal processing, generating an interference cancellation signal for canceling interference occurring in an uplink communication signal by the downlink communication signal based on the generated signal modification information and canceling interference occurring in the uplink communication signal by using the generated interference cancellation signal.
    Type: Application
    Filed: November 24, 2020
    Publication date: May 27, 2021
    Applicant: SOLiD, INC.
    Inventor: Nagwon KWON
  • OPTICAL COMMUNICATION SYSTEM AND METHOD OF MONITORING THEREOF
    Publication number: 20210152273
    Abstract: Provided is an optical communication system configured as an optical ring network including: a first optical communication device configured to transmit a first optical signal having a first wavelength in a first direction, and to transmit a second optical signal having a second wavelength in a second direction opposite to the first direction; and a second optical communication device configured to generate a first reflected signal by reflecting the first optical signal when the first optical signal is received, to generate a second reflected signal by reflecting the second optical signal when the second optical signal is received, and to transmit the first and second reflected signals to the first optical communication device, wherein the first optical communication device analyzes a connection state of the second optical communication device based on the first and second reflected signals.
    Type: Application
    Filed: November 13, 2020
    Publication date: May 20, 2021
    Applicant: SOLiD, INC.
    Inventors: Chi Young PARK, Gil Koog KIM, Bum Soo PARK
  • SYSTEM AND METHOD OF MONITORING BASE STATION SIGNAL
    Publication number: 20210143905
    Abstract: Provided is a base station signal monitoring system including: a plurality of optical transmission devices configured to transmit a base station signal; a measuring device configured to measure the base station signal according to a preset method; and a switch device, which is connected to the plurality of optical transmission devices and the measuring device, configured to switch connections between a plurality of input ports and a plurality of output ports so that the base station signal is transmitted from one of the plurality of optical transmission devices to the other one of the plurality of optical transmission devices or the measuring device.
    Type: Application
    Filed: November 9, 2020
    Publication date: May 13, 2021
    Applicant: SOLiD, INC.
    Inventor: Bum Soo Park
  • Distributed antenna system-based on time sensitive network
    Patent number: 11005699
    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.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: May 11, 2021
    Assignee: SOLID, INC.
    Inventors: Dong Hee Kwon, Hoo Pyo Hong, Young Man Cho, Dae Young Kim, Hyun Jung Kim
  • Distributed antenna system for multiple input multiple output signal
    Patent number: 11005641
    Abstract: According to an aspect of the inventive concept, there is provided a master unit included in a distributed antenna system of a frequency division duplex scheme, includes: a frequency converting unit converting a frequency of a first signal received from a base station into a predetermined frequency to generate a first frequency conversion signal; a signal combining unit combining the first frequency conversion signal and a second signal received from the base station to generate a transmit signal; and a signal transmitting/receiving unit transmitting the transmit signal to a remote unit connected through a single transmission line.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: May 11, 2021
    Assignee: SOLiD, INC.
    Inventor: Jaehun Choi