公开(公告)号：US20220201501A1

公开(公告)日：2022-06-23

申请号：US17692557

申请日：2022-03-11

Applicant: SOLiD, INC.

Inventor： Sangwook KANG ,  Hoony Hong ,  Hyunchae Kim ,  Kwon Kim ,  Woosik Moon

IPC: H04W16/26 ,  H04B7/155 ,  H04L5/14 ,  H04W56/00

Abstract: A method of operating a repeater comprises detecting a synchronization signal from a received communication signal, identifying a time division duplex (TDD) switching pattern based on a power change of the communication signal over time and switching an uplink operation and a downlink operation of the repeater based on the detected synchronization signal and the TDD switching pattern.

公开(公告)号：US11349762B2

公开(公告)日：2022-05-31

申请号：US17063146

申请日：2020-10-05

Applicant: SOLiD, INC.

Inventor： Hoo Pyo Hong ,  Dong Hee Kwon ,  Hee Hwan Kwak

IPC: H04L47/12 ,  H04L47/2483 ,  H04L47/20 ,  H04L47/32 ,  H04W28/02 ,  H04L67/61 ,  H04L47/2441 ,  H04L47/24 ,  H04L47/6275 ,  H04W88/08

Abstract: According to one or more embodiments of the present invention, a frame processing method of a distributed antenna system may include confirming whether a quality of service (QoS) tag exists in header information of a received frame; performing frame scheduling of the frame based on the QoS tag; and dropping or transmitting the frame according to a transmission priority according to a result of the frame scheduling.

公开(公告)号：US20220166519A1

公开(公告)日：2022-05-26

申请号：US17456279

申请日：2021-11-23

Applicant: SOLiD, INC.

Inventor： Eun Sung LEE

IPC: H04B10/572 ,  H04J14/02

Abstract: An optical communication device includes: a first multiplexer including a first transmitting port and a second transmitting port; a downstream wavelength analyzer configured to analyze first transmission light to recognize a first downstream wavelength corresponding to the first transmission light and analyze second transmission light to recognize a second downstream wavelength corresponding to the second transmission light; and a controller configured to generate a first control signal for allowing the first transmitting port to pass light corresponding to the first downstream wavelength and allowing the second transmitting port to pass light corresponding to the second downstream wavelength, and output the first control signal to the first multiplexer, wherein the first multiplexer, according to the first control signal, controls the first transmitting port to correspond to the first downstream wavelength and controls the second transmitting port to correspond to the second downstream wavelength.

公开(公告)号：US20220159603A1

公开(公告)日：2022-05-19

申请号：US17454708

申请日：2021-11-12

Applicant: SOLiD, INC.

Inventor： Hyek Jae Choi ,  In Ho Jang

IPC: H04W56/00 ,  H04B7/155 ,  H04L5/00

Abstract: According to an aspect of the disclosure, a mobile communication repeater comprises a receiver configured to receive a plurality of test signals from a plurality of external communication devices and subsequently, receive a plurality of downlink signals from the external communication devices, and a digital signal processor configured to measure a delay time of each of the plurality of test signals, generate a sync time based on the delay times, and delay each of the plurality of downlink signals to correspond with the sync time.

公开(公告)号：US20220141682A1

公开(公告)日：2022-05-05

申请号：US17436905

申请日：2020-03-04

Applicant: SOLiD, INC.

Inventor： Ok Jin KIM ,  Minchang LEE

IPC: H04W24/04 ,  H04W72/04

Abstract: Provided are a communication node which comprises a signal monitoring device configured to receive a plurality of communication signals transmitted from two or more base stations, and to monitor a bandwidth of each of the received communication signals, a frame setter configured to reset a frame structure by merging at least some of blocks in a preset frame structure according to a result of the monitoring, and a framer configured to frame the plurality of communication signals into one frame by including the plurality of communication signals in a block corresponding to a bandwidth of each of the plurality of communication signals according to the reset frame structure.

公开(公告)号：US11240834B2

公开(公告)日：2022-02-01

申请号：US16811462

申请日：2020-03-06

Applicant: SOLID, INC.

Inventor： Dong Hyun Park

IPC: H04W72/12 ,  H04L5/00 ,  H04L1/18 ,  H04L1/16 ,  H04W72/04 ,  H04W72/00 ,  H04W88/08

Abstract: The present invention relates to a method and an apparatus allowing a simultaneous transmission of control signals in a wireless communication system.

公开(公告)号：US11240087B2

公开(公告)日：2022-02-01

申请号：US16638602

申请日：2019-07-05

Applicant: SOLiD, INC.

Inventor： Nagwon Kwon

IPC: H04W4/00 ,  H04L27/26 ,  H04J11/00 ,  H04L5/00 ,  H04W56/00 ,  H04W72/04

Abstract: A synchronization detection method of a repeater comprises receiving a communication signal comprising a plurality of synchronization signal blocks respectively belonging to different frequency ranges, determining a priority of a frequency range in which the plurality of synchronization signal blocks are to be detected based on signal level for each frequency range and detecting a synchronization signal block included in each frequency range according to the determined priority.

公开(公告)号：US11206599B2

公开(公告)日：2021-12-21

申请号：US16021913

申请日：2018-06-28

Applicant: SOLiD, INC.

Inventor： Do Yoon Kim ,  Hyoung Ho Kim ,  Kwang Nam Seo

IPC: H04W40/22 ,  H04L25/02 ,  H04L25/20 ,  H04L25/10 ,  H04B3/36 ,  H04B7/155 ,  H04W56/00 ,  H04W88/08

Abstract: There is provided a main unit and a distributed antenna system including the same. The main unit for constituting a distributed antenna system that receives a base station signal from at least one base station, transmits the base station signal to at least one user terminal, and includes a plurality of main units, the main unit includes: a first receiver for receiving a first group of base station signals; a second receiver for receiving a second group of base station signals from another main unit; a signal combiner for combining the first and second groups of base station signals; and a delay compensator for compensating for time delay corresponding to a path between the main unit and the other main unit with respect to the first group of base station signals before combining the first and second groups of base station signals.

公开(公告)号：US11070256B2

公开(公告)日：2021-07-20

申请号：US16853992

申请日：2020-04-21

Applicant: SOLiD, INC.

Inventor： Youngin Kim ,  Seongwook Byun ,  Hosik Jang

IPC: H04B7/02 ,  H04B7/024

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.

公开(公告)号：US20210194613A1

公开(公告)日：2021-06-24

申请号：US17120843

申请日：2020-12-14

Applicant: SOLiD, INC.

Inventor： Donghee KWON ,  Hoopyo HONG

IPC: H04J3/06

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.