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公开(公告)号：US10992038B2
公开(公告)日：2021-04-27
申请号：US16703154
申请日：2019-12-04
Inventor： Chung Sup Kim , hyuk Je Kim , Jong Soo Lim , Ju Yeon Hong , Young Jun Chong
IPC: H04B17/21 , H01Q21/22 , H01Q3/26 , H04L27/26 , H04B17/336
Abstract: A method and apparatus for calibrating a phased array antenna system is disclosed. The method includes receiving a first transmission signal transmitted from a transmitting antenna device, receiving a second transmission signal that is generated by the transmitting antenna device based on an unoccupied frequency band of a receiving array antenna system and a bandwidth of the frequency band, and generating a calibration matrix to calibrate a plurality of antenna elements included in the receiving array antenna system based on a signal magnitude and a phase difference which are calculated for each of the antenna elements using the first transmission signal and the second transmission signal.
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公开(公告)号：US11792050B2
公开(公告)日：2023-10-17
申请号：US17537175
申请日：2021-11-29
Inventor： Chung Sup Kim , Jun Seok Kim , Jong Soo Lim , Ju Yeon Hong , Young Jun Chong
CPC classification number: H04L25/0248 , H01Q1/242 , H04B17/30
Abstract: An operating method of a power estimation apparatus comprising a fixed antenna and a mobile antenna may comprise: a first operation of obtaining N measurement values by receiving a signal from signal sources using the fixed antenna and the mobile antenna that moves at a speed v from a first point to an Nth point; a second operation of generating a two-dimensional (2D) data collection set comprising N×M measurement values, by repeating the first operation M times; applying an approximation singular value decomposition (SVD) algorithm to the 2D data collection set; and obtaining information of the signal sources based on an application result of the approximation SVD algorithm, wherein N and M are natural numbers.
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3.发明授权Digital broadcasting signal transmitting method and device, recording medium thereof, and receiving device thereof 有权数字广播信号发送方法及装置，其记录媒体及其接收装置公开(公告)号：US09246806B2
公开(公告)日：2016-01-26
申请号：US13966766
申请日：2013-08-14
Inventor： Jae Hyun Seo , Hyoung Soo Lim , Heung Mook Kim , Yong Tae Lee , Sung Ik Park , Jong Soo Lim , Soo In Lee
IPC: H04L12/28 , H04L12/741 , H04H20/30
Abstract: In a digital broadcasting signal transmission system, a transmission frame includes a frame body and a frame header, and the frame body is divided into a plurality of sub-bands in the frequency domain and is divided into a plurality of symbols in the time domain. The frame header is provided in the former part of the transmission frame and is transmitted with a signal in the time domain. The frame body includes a plurality of services, and the services respectively receive at least one sub-band and at least one symbol. The frame header includes information on the plurality of services, and information on the plurality of services includes information on the sub-band and the symbol to which the services are allocated, information on channel encoding levels of the services, and information on digital modulation levels of the services.
Abstract translation: 在数字广播信号传输系统中，传输帧包括帧体和帧头，并且帧体被划分成频域中的多个子带，并且在时域中被划分为多个符号。 帧头在传输帧的前一部分中提供，并且在时域中以信号发送。 帧体包括多个服务，并且服务分别接收至少一个子带和至少一个符号。 帧头包括关于多个服务的信息，并且关于多个服务的信息包括关于子带和分配服务的符号的信息，关于服务的信道编码级别的信息以及关于数字调制级别的信息 的服务。
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4.发明申请GRACEFUL DEGRADATION-FORWARD ERROR CORRECTION METHOD AND APPARATUS FOR PERFORMING SAME 审中-公开严格的降级前向错误校正方法及其执行装置公开(公告)号：US20150006991A1
公开(公告)日：2015-01-01
申请号：US14374690
申请日：2013-01-24
Inventor： Seok Ho Won , Sun Hyoung Kwon , Ho Kyom Kim , Jong Soo Lim , O Hyung Kwon
CPC classification number: G06F11/10 , H03M13/3761 , H04L1/0041 , H04L1/0045 , H04L1/007 , H04N21/2383
Abstract: Disclosed are a graceful degradation-forward error correction method and an apparatus for performing same. A graceful degradation-forward error correction method determines an encoding unit data group constituted by a predetermined number of time intervals for a data stream input in a time-sequential manner, determines a reference data group to be used in generating a parity frame in each time interval of the encoding unit data group, generates a parity frame using the determined at least one reference data group, and assigns the generated parity frame to at least one time interval from among a plurality of time intervals including time intervals constituting the encoding unit data group based on a predetermined rule. Thus, a lost packet can be recovered even when the packet of a continuous long interval is lost, and consequentially, a seamless service may be provided.
Abstract translation: 公开了一种优雅的退化前向纠错方法及其执行装置。 优雅的退化前向纠错方法确定以时间顺序方式输入的数据流的预定数量的时间间隔构成的编码单元数据组，确定在每次产生奇偶校验帧时使用的参考数据组 编码单元数据组的间隔，使用所确定的至少一个参考数据组生成奇偶校验帧，并且将生成的奇偶校验帧从包括构成编码单元数据组的时间间隔的多个时间间隔中的至少一个时间间隔分配 基于预定规则。 因此，即使当连续长间隔的分组丢失时，也可以恢复丢失的分组，并且因此可以提供无缝服务。
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公开(公告)号：US11456809B2
公开(公告)日：2022-09-27
申请号：US16209629
申请日：2018-12-04
Inventor： Chung Sup Kim , Hyuk Je Kim , Young Jun Chong , Jong Soo Lim , Ju Yeon Hong
IPC: H04B15/00 , H04B17/27 , H04B17/336 , G01S13/46
Abstract: Disclosed is a position estimation method for estimating a position of an interference signal source and a position estimation system for performing the method. The position estimation method may implement an indoor delay-space analysis structure by transmitting and receiving a known signal and a virtual array structure-based direction finding algorithm in an indoor environment in which a plurality of reflected waves is present and may increase an estimation probability for the position of the interference signal source.
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Patent Agency Ranking
公开(公告)号：US11246100B1
公开(公告)日：2022-02-08
申请号：US17110594
申请日：2020-12-03
Inventor： Chung Sup Kim , Sung Woong Choi , Jong Soo Lim , Ju Yeon Hong , Young Jun Chong
Abstract: A method of selecting a path for transmitting a maximum power from a base station to a terminal includes simplifying a plurality of structures in an area by using OBBs, the area being an area in which beam search is to be performed; forming the plurality of simplified structures into a tree structure for ray tracing; performing the ray tracing by applying a ray tracing relation tree reduction (RRTR) algorithm for reducing an amount of computation of a GPU to the tree structure; and applying a linear regression (LR) algorithm for calculating the maximum power to be transmitted from the base station to the terminal based on a result of the ray tracing.
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公开(公告)号：US09106495B2
公开(公告)日：2015-08-11
申请号：US14547243
申请日：2014-11-19
Inventor： Kwang Seon Kim , Min Soo Kang , Bong Su Kim , Woo Jin Byun , Jong Soo Lim , Myung Sun Song , Jae Ick Choi
CPC classification number: H04L25/0204 , H04B7/0413 , H04B7/0604 , H04L1/0002 , H04L1/0011 , H04L1/06 , H04L5/0023 , H04L25/00 , H04L27/0008 , H04L27/34
Abstract: Disclosed are a wireless communication method of improving frequency efficiency based on a channel function in a wireless communication system and an apparatus thereof. The wireless communication system using a digital modulation scheme, includes: a transmitting apparatus which modulates a data signal to generate a modulation symbol, generates a channel symbol function corresponding to the modulation symbol, combines the modulation symbol with the channel symbol function to generate a transmission symbol to transmit the generated transmission symbol through a transmission antenna; and a receiving apparatus which receives the transmission symbol through a reception antenna, estimates a channel symbol function included in the transmission symbol, and extracts the data signal based on the modulation symbol included in the transmission symbol.
Abstract translation: 公开了一种基于无线通信系统中的信道功能提高频率效率的无线通信方法及其装置。 使用数字调制方式的无线通信系统包括：调制数据信号以生成调制符号的发送装置，生成与调制符号对应的信道符号功能，将调制符号与信道符号功能组合，生成发送 符号，用于通过发送天线发送生成的发送符号; 以及通过接收天线接收发送符号的接收装置，估计包含在发送符号中的信道符号函数，并且根据包含在发送符号中的调制符号提取数据信号。
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公开(公告)号：US10419133B2
公开(公告)日：2019-09-17
申请号：US15825913
申请日：2017-11-29
Inventor： Chung Sup Kim , Hyuk Je Kim , Young Jun Chong , Jong Soo Lim , Woo Jin Byun
IPC: H04B15/00 , H04W64/00 , H04W4/02 , H01Q3/34 , H01Q1/00 , H01Q21/20 , H01Q1/08 , H01Q1/12 , H04W4/029 , H01Q21/08
Abstract: Disclosed is a method of estimating a position of a signal source and a position estimation apparatus, the method including acquiring an environment, a frequency, and a bandwidth of the interference signal source, determining an arrangement form of the two antennas based on the environment, the frequency, and the bandwidth and arranging the two antennas, and estimating a position of the interference signal source based on an interference signal of the interference signal source and the two arranged antennas, wherein the environment includes an indoor environment and an outdoor environment.
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9.发明授权Apparatus and method for separating two phase-modulated signals having different amplitudes 有权用于分离具有不同幅度的两个相位调制信号的装置和方法公开(公告)号：US09281977B2
公开(公告)日：2016-03-08
申请号：US14598416
申请日：2015-01-16
Inventor： Jong Soo Lim
IPC: H03C3/00 , H04L27/227 , H04L27/20
CPC classification number: H04L27/2273 , H04L27/206
Abstract: Provided is an apparatus and method for separating two phase-modulated signals having different amplitudes. A separation method for a phase-modulated signal may include: receiving, using a single antenna, a first received signal and a second received signal that are modulated and thereby transferred from a transmitter; calculating an attenuation level of each of the first received signal and the second received signal by dividing each of the first received signal and the second received signal into a real number portion and an imaginary number portion; calculating a difference between the first received signal and the second received signal; and separating and thereby demodulating the first received signal and the second received signal.
Abstract translation: 提供了一种用于分离具有不同振幅的两个相位调制信号的装置和方法。 用于相位调制信号的分离方法可以包括：使用单个天线接收被调制并从而从发射机传送的第一接收信号和第二接收信号; 通过将第一接收信号和第二接收信号中的每一个分成实数部分和虚数部分来计算第一接收信号和第二接收信号中的每一个的衰减电平; 计算第一接收信号和第二接收信号之间的差; 并且分离并由此解调第一接收信号和第二接收信号。
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公开(公告)号：US09106496B2
公开(公告)日：2015-08-11
申请号：US14354333
申请日：2012-10-24
Inventor： Jong Soo Lim , Sun Hyoung Kwon , Heung Mook Kim , Namho Hur
CPC classification number: H04L27/2649 , H03C3/40 , H04L27/0008 , H04L27/2614 , H04L27/2634
Abstract: Modulation is performed on a first input signal and a second input signal to be transmitted based on symbol mapping. Phase values of the first and second modulated input signals are selectively adjusted. Angle modulation is performed on the first input signal and the second input signal having selectively adjusted phase values. The angle-modulated first and second input signals are transmitted.
Abstract translation: 基于符号映射对第一输入信号和第二输入信号执行调制。 选择性地调整第一和第二调制输入信号的相位值。 对第一输入信号和第二输入信号进行角度调制，其具有选择性地调整的相位值。 角度调制的第一和第二输入信号被发送。
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