-
公开(公告)号：US11419076B2
公开(公告)日：2022-08-16
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.
-
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
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：US10404352B2
公开(公告)日：2019-09-03
申请号：US15540774
申请日：2015-12-21
Applicant: SOLID, INC. , SOLIDSYSTEMS CO., LTD.
Inventor： Hyunchae Kim
IPC: H04B7/15 , H04B7/155 , H04B17/318 , H04W52/34 , H04W52/24
Abstract: According to an aspect of the inventive concept, there is provided an interference cancellation repeater includes: a signal transceiver configured to cancel an interference signal from an RF input signal and to output an RF output signal from which the interference signal has been canceled; and a controller configured to control a power mode of the signal transceiver by measuring traffic of a first signal in the signal transceiver.
-
公开(公告)号：US10211908B2
公开(公告)日：2019-02-19
申请号：US15116945
申请日：2014-04-09
Applicant: SOLiD, INC.
Inventor： Hyunchae Kim
IPC: H04B7/155
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.
-
公开(公告)号：US11297514B2
公开(公告)日：2022-04-05
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.
-
Patent Agency Ranking
公开(公告)号：US10686517B2
公开(公告)日：2020-06-16
申请号：US15909481
申请日：2018-03-01
Applicant: SOLiD, INC.
Inventor： Inho Jang , Hyunchae Kim
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.
-
17.发明授权公开(公告)号：US10206192B2
公开(公告)日：2019-02-12
申请号：US15106354
申请日：2014-08-14
Applicant: SOLiD, INC.
Inventor： Hyunchae Kim
Abstract: There is provided a device for detecting LTE frame synchronization, including: a CP correlator calculating a correlation of a cyclic prefix (CP) included in each orthogonal frequency division multiplexing (OFDM) symbol of an LTE signal processed digital conversion; a frequency offset compensation unit compensating a frequency offset for a synchronization signal in the LTE signal by using a symbol frequency offset calculated based on the CP correlation; a synchronization signal correlation calculation unit performing a correlation calculation in a time domain with respect to the synchronization signal, of which the frequency offset is compensated, by considering a symbol start timing obtained based on the CP correlation; and a frame synchronization detection unit detecting the frame synchronization of the LTE signal based on a result of the correlation calculation for the synchronization signal.
-
公开(公告)号：US10200107B2
公开(公告)日：2019-02-05
申请号：US15540615
申请日：2015-12-04
Applicant: SOLiD, INC.
Inventor： Hyunchae Kim
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.
-
公开(公告)号：US09991943B2
公开(公告)日：2018-06-05
申请号：US15395123
申请日：2016-12-30
Applicant: SOLID, INC.
Inventor： Nagwon Kwon , Hyunchae Kim
CPC classification number: H04B7/15585 , H04B7/15535 , H04B7/15542 , H04B7/18543 , H04W72/0473 , H04W72/082
Abstract: An interference cancellation repeater including a subtractor configured to subtract an estimated signal from a digital reception signal and output an interference canceled signal; a first power calculator configured to calculate power of the digital reception signal; a second power calculator configured to calculate power of the interference canceled signal; and an attenuation controller configured to compare a power value of the calculated digital reception signal with a power value of the calculated interference canceled signal and determine an attenuation value of the interference canceled signal according to the comparison result.
-
公开(公告)号：US12231193B2
公开(公告)日：2025-02-18
申请号：US18049021
申请日：2022-10-24
Inventor： Nagwon Kwon , Hyunchae Kim , Jihoon Choi
IPC: H04B7/0456 , H04L5/00
Abstract: A communication node included in a multi-antenna multi-carrier system, when precoding matrices corresponding to some subcarriers from among subcarriers allocated to another communication node connected to the communication node are input, obtains precoding matrices for at least some subcarriers from among the allocated subcarriers by performing spherical interpolation on the input precoding matrices, maps the obtained precoding matrices for the at least some subcarriers to the subcarriers allocated to the other communication node, and performs precoding on the plurality of vector signals using the mapped precoding matrices.
-
-
-
-
-
-
-
-
-
Search Results
26
records
(took 0.014 seconds)
