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公开(公告)号：US20170366247A1
公开(公告)日：2017-12-21
申请号：US15540615
申请日：2015-12-04
Applicant: SOLiD, INC.
Inventor： Hyunchae KIM
CPC classification number: H04B7/15507 , H04B7/15578 , H04B7/15585 , H04W28/04
Abstract: An interference cancellation repeater includes: a first transmission/reception processing unit configured to convert a radio frequency (RF) input signal input via a link antenna communicatively coupled to a base station into a digital input signal; an interference canceller configured to cancel an interference signal from the digital input signal and to output an interference canceled signal; a second transmission/reception processing unit configured to convert the interference canceled signal into an RF output signal and to amplify the RF output signal; and a gain controller configured to detect a gain change of the interference cancellation repeater based on the interference canceled signal and to change a current gain of the interference cancellation repeater to a target gain by adjusting intensity of at least one of the RF input signal, the interference canceled signal, and the RF output signal when the gain change of the interference cancellation repeater is detected.
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公开(公告)号：US20170187448A1
公开(公告)日：2017-06-29
申请号：US15391180
申请日：2016-12-27
Applicant: SOLiD, INC.
Inventor： Nagwon KWON , Hyunchae KIM
IPC: H04B7/155
CPC classification number: H04B7/15585
Abstract: An interference cancellation repeater configured to cancel an interference signal included in an input signal, the interference cancellation repeater including: a canceller configured to generate an interference canceled signal based on the input signal and an estimated signal; a digital filter configured to filter the interference canceled signal to generate an output signal; an interference signal detector configured to generate interference signal existence interval information using the input signal and the output signal; and an adaptive filter configured to receive the interference canceled signal and the output signal, and generate the estimated signal based on the interference signal existence interval information. Information of the signal existence section
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公开(公告)号：US20170012696A1
公开(公告)日：2017-01-12
申请号：US15117926
申请日：2014-07-02
Applicant: SOLID, INC.
Inventor： Inho JANG , Hyunchae KIM
CPC classification number: H04B7/15585 , H03F1/3247 , H03F3/19 , H03F3/21 , H04B7/15578 , H04B17/318 , H04L5/0048
Abstract: Provided is an interference cancellation relay device. The interference cancellation relay device includes: an interference cancellation unit cancelling an interference signal from an input signal and outputting the input signal from which the interference signal is removed; a gain control unit controlling a gain of an output signal of the interference cancellation unit; and a pre-distortion unit distorting the output signal of the interference cancellation unit, of which the gain is controlled by the gain control unit.
Abstract translation: 提供了一种干扰消除中继装置。 干扰消除中继装置包括：干扰消除单元，从输入信号中消除干扰信号，并输出除去干扰信号的输入信号; 增益控制单元，控制所述干扰消除单元的输出信号的增益; 以及预失真单元使得干扰消除单元的输出信号失真，其中增益由增益控制单元控制。
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公开(公告)号：US20210058878A1
公开(公告)日：2021-02-25
申请号：US16991586
申请日：2020-08-12
Inventor： Nagwon KWON , Hyunchae KIM , Chonghoon KIM
Abstract: Provided are a synchronization signal detection method performed by a receiver including a processor and a memory, the synchronization signal detection method comprises calculating a PSS correlation value for a primary synchronization signal (PSS) included in a received signal, detecting a frequency offset for the PSS and a timing offset for sampling timing of the received signal and detecting the PSS based on the PSS correlation value, the frequency offset, and the timing offset.
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公开(公告)号：US20200322811A1
公开(公告)日：2020-10-08
申请号：US16652912
申请日：2019-07-23
Applicant: SOLID, INC.
Inventor： Sangwook KANG , Hoony HONG , Hyunchae KIM , Kwon KIM , Woosik MOON
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.
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Patent Agency Ranking
公开(公告)号：US20180041266A1
公开(公告)日：2018-02-08
申请号：US15783102
申请日：2017-10-13
Applicant: SOLiD, INC.
Inventor： Nagwon KWON , Hyunchae KIM
IPC: H04B7/155
CPC classification number: H04B7/15585
Abstract: An interference cancellation repeater for canceling an interference signal included in an input signal including a first adaptive filter configured to generate a first estimated signal; a second adaptive filter configured to generate a second estimated signal; a first scaler configured to scale the first estimated signal based on a first scale factor determined according to a channel state; a second scaler configured to scale the second estimated signal based on a second scale factor determined according to the channel state; a first canceller configured to generate a first interference canceled signal based on the input signal and the scaled first estimated signal; and a second canceller configured to generate a second interference canceled signal based on the first interference canceled signal and the scaled second estimated signal.
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公开(公告)号：US20180034533A1
公开(公告)日：2018-02-01
申请号：US15540643
申请日：2015-12-21
Applicant: SOLiD, INC. , SOLIDSYSTEMS CO., LTD.
Inventor： Hyunbeom LEE , Hyunchae KIM
IPC: H04B7/155
CPC classification number: H04B7/15585 , H04B7/155 , H04B7/15535 , H04B7/15571
Abstract: According to an aspect of the inventive concept, there is provided an interference cancellation repeater for repeating a long term evolution (LTE) signal between a terminal and a base station, the interference cancellation repeater includes: an interference canceller configured to generate a restored LTE signal by canceling a feedback signal included in an input LTE signal; a sync signal detector configured to detect a first sync level which is a level with respect to a sync signal of the input LTE signal and a second sync level which is a level with respect to a sync signal of the restored LTE signal; and a gain controller configured to control a signal amplifier according to isolation calculated based on a difference between the first sync level and the second sync level.
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公开(公告)号：US20170257465A1
公开(公告)日：2017-09-07
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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公开(公告)号：US20170187449A1
公开(公告)日：2017-06-29
申请号：US15391209
申请日：2016-12-27
Applicant: SOLiD, INC.
Inventor： Nagwon KWON , Hyunchae KIM
IPC: H04B7/155
CPC classification number: H04B7/15585
Abstract: An interference cancellation repeater for canceling an interference signal included in an input signal including a first adaptive filter configured to generate a first estimated signal; a second adaptive filter configured to generate a second estimated signal; a first scaler configured to scale the first estimated signal based on a first scale factor determined according to a channel state; a second scaler configured to scale the second estimated signal based on a second scale factor determined according to the channel state; a first canceller configured to generate a first interference canceled signal based on the input signal and the scaled first estimated signal; and a second canceller configured to generate a second interference canceled signal based on the first interference canceled signal and the scaled second estimated signal.
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公开(公告)号：US20170141836A1
公开(公告)日：2017-05-18
申请号：US15116945
申请日：2014-04-09
Applicant: SOLiD, INC.
Inventor： Hyunchae KIM
IPC: H04B7/155
CPC classification number: H04B7/15507 , H04B7/15585
Abstract: Provided is a multi-antenna relay device. The multi-antenna relay device having first to n-th (n is a natural number of 2 or more) channel formed between receiving antennas and transmitting antennas corresponding to each other, comprising: first to n-th channel interference cancellation units, respectively, included in a corresponding channel among the first to n-th channels and canceling first to n-th channel interference signals corresponding to signals radiated through the first to n-th channels from signal input into the corresponding channel in real time.
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