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1. 发明授权

US11792050B2 Method and apparatus for simultaneous power estimation of multiple signal sources in communication system 有权
公开(公告)号：US11792050B2
公开(公告)日：2023-10-17
申请号：US17537175
申请日：2021-11-29
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Chung Sup Kim , Jun Seok Kim , Jong Soo Lim , Ju Yeon Hong , Young Jun Chong
IPC分类号： H04L25/02 , H04B17/30 , H01Q1/24
CPC分类号： H04L25/0248 , H01Q1/242 , H04B17/30
摘要： 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.

2. 发明授权

US10992038B2 Method and apparatus for calibrating array antenna system for phase compensation 有权
公开(公告)号：US10992038B2
公开(公告)日：2021-04-27
申请号：US16703154
申请日：2019-12-04
申请人： Electronics and Telecommunications Research Institute
发明人： Chung Sup Kim , hyuk Je Kim , Jong Soo Lim , Ju Yeon Hong , Young Jun Chong
IPC分类号： H04B17/21 , H01Q21/22 , H01Q3/26 , H04L27/26 , H04B17/336
摘要： 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.

3. 发明授权

US10419133B2 Method of estimating position of interference signal source and apparatus thereof 有权
公开(公告)号：US10419133B2
公开(公告)日：2019-09-17
申请号：US15825913
申请日：2017-11-29
申请人： Electronics and Telecommunications Research Institute
发明人： Chung Sup Kim , Hyuk Je Kim , Young Jun Chong , Jong Soo Lim , Woo Jin Byun
IPC分类号： H04B15/00 , H04W64/00 , H04W4/02 , H01Q3/34 , H01Q1/00 , H01Q21/20 , H01Q1/08 , H01Q1/12 , H04W4/029 , H01Q21/08
摘要： 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.

4. 发明授权

US09397870B2 Signal receiving device for measuring characteristic of wireless communication channel, and method of measuring characteristic of wireless communication channel 有权
标题翻译：用于测量无线通信信道特性的信号接收装置，以及测量无线通信信道特性的方法
公开(公告)号：US09397870B2
公开(公告)日：2016-07-19
申请号：US14636728
申请日：2015-03-03
申请人： Electronics and Telecommunications Research Institute
发明人： Heon Kook Kwon , Myung Don Kim , Kwangchun Lee , Young Jun Chong
IPC分类号： H04L25/06 , H04L27/22 , H04L1/20
CPC分类号： H04L25/061 , H04J11/004 , H04J11/0066 , H04L1/206 , H04L25/0212 , H04L27/22 , H04L27/3863
摘要： A signal receiving device for measuring a characteristic of a wireless communication channel is provided. The signal receiving device includes an analog signal processor, an analog-digital converter, and a digital signal processor. The analog signal processor generates a band-limited signal by decreasing an intensity of a signal having an image frequency in a correlation operation result signal being a result of correlation operation, and generates an intermediate frequency signal by transforming the band-limited signal. The analog-digital converter converts the intermediate frequency signal into a digital signal. The digital signal processor generates a demodulated signal by performing in-phase/quadrature-phase modulation on the digital signal, the demodulated signal including a baseband signal, which includes a direct current component, and signals repeated at constant frequency intervals with a same bandwidth as the baseband signal, and generates an impulse response signal by decreasing intensities of the repeated signals in the demodulated signal.
摘要翻译：提供了一种用于测量无线通信信道的特性的信号接收装置。信号接收装置包括模拟信号处理器，模拟数字转换器和数字信号处理器。模拟信号处理器通过减小作为相关运算结果的相关运算结果信号中具有图像频率的信号的强度来产生频带限制信号，并且通过变换频带限制信号来产生中频信号。模数转换器将中频信号转换为数字信号。数字信号处理器通过对数字信号执行同相/正交相位调制来产生解调信号，该解调信号包括包括直流分量的基带信号和以恒定频率间隔以与基带信号，并且通过降低解调信号中的重复信号的强度来产生脉冲响应信号。

5. 发明授权

US11456809B2 Position estimation method for estimating position of interference signal source and position estimation system for performing the method 有权
公开(公告)号：US11456809B2
公开(公告)日：2022-09-27
申请号：US16209629
申请日：2018-12-04
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Chung Sup Kim , Hyuk Je Kim , Young Jun Chong , Jong Soo Lim , Ju Yeon Hong
IPC分类号： H04B15/00 , H04B17/27 , H04B17/336 , G01S13/46
摘要： 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.

6. 发明授权

US11246100B1 Apparatus and method for selecting path through beam search 有权
公开(公告)号：US11246100B1
公开(公告)日：2022-02-08
申请号：US17110594
申请日：2020-12-03
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Chung Sup Kim , Sung Woong Choi , Jong Soo Lim , Ju Yeon Hong , Young Jun Chong
IPC分类号： H04W52/06 , H04W52/38 , H04W48/16 , H04W56/00
摘要： 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.

7. 发明授权

US09184859B2 Apparatus and method for determining received signal level in ray-tracing wave propagation environment 有权
标题翻译：用于确定光线跟踪波传播环境中的接收信号电平的装置和方法
公开(公告)号：US09184859B2
公开(公告)日：2015-11-10
申请号：US13899244
申请日：2013-05-21
申请人： Electronics and Telecommunications Research Institute
发明人： Myoung-Won Jung , Young Jun Chong , Jong Ho Kim
IPC分类号： H04B17/00 , H04B17/318
CPC分类号： H04B17/318
摘要： An apparatus for determining a received signal level of a radio wave in a ray-tracing wave propagation environment includes a reception unit configured to receive the radio wave; and an analyzing unit configured to determine the received signal level of the radio wave in the ray-tracing wave propagation environment. Further, the analyzing unit is configured to analyze a correlation of the height and altitude of a surface roughness that recognizes the surface of a surrounding obstacle depending on the length of wavelength in the course of delivery of a received signal of the radio wave and analyze precisely the scattering of the received signal depending on the surface roughness to determine the received signal level of the radio wave when determining the received signal level.
摘要翻译：一种用于确定射线跟踪波传播环境中的无线电波的接收信号电平的装置，包括接收无线电波的接收单元; 以及分析单元，被配置为确定所述射线跟踪波传播环境中的所述无线电波的接收信号电平。此外，分析单元被配置为根据无线电波的接收信号的传送过程中的波长长度来分析识别周围障碍物的表面的表面粗糙度的高度和高度的相关性，并且精确地分析接收信号的散射取决于表面粗糙度，以在确定接收信号电平时确定无线电波的接收信号电平。

8. 发明授权

US09111714B2 Backward-wave oscillator in communication system 有权
标题翻译：通信系统中的后向波振荡器
公开(公告)号：US09111714B2
公开(公告)日：2015-08-18
申请号：US14475802
申请日：2014-09-03
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Ju Yeon Hong , Young Jun Chong , Jeong Hae Lee , Dong Jin Kim
IPC分类号： H03B9/08 , H01J25/46 , H01J23/24
CPC分类号： H01J25/46 , H01J23/24 , H01J25/40
摘要： Provided is a backward-wave oscillator in a communication system, including a waveguide formed of a metamaterial. A unit structure of the waveguide may include: a top plate; a short-circuited stub; a bottom plate separated at a predetermined gap from the top plate, and having the short-circuited stub formed in the center thereof; a first metal pillar connecting the top plate at a first port positioned on one surface based on the short-circuited stub to the bottom plate at a second port positioned on the opposite surface of the first port based on the short-circuited stub; and a second metal pillar separated from the first metal pillar, and connecting the top plate at the second port to the bottom plate at the first port.
摘要翻译：提供了一种通信系统中的反向波振荡器，包括由超材料形成的波导。波导的单元结构可以包括：顶板; 短路短路与顶板隔开预定间隙的底板，其中心形成短路短截线; 第一金属支柱，其基于所述短路短截线将位于一个表面上的第一端口连接到位于所述第一端口的相对表面上的第二端口处的所述底板，所述第二端口基于所述短路短截线; 以及与第一金属柱分离的第二金属柱，并且将第二端口处的顶板连接到第一端口处的底板。

9. 发明授权

US08797107B2 Voltage controlled oscillator 有权
标题翻译：压控振荡器
公开(公告)号：US08797107B2
公开(公告)日：2014-08-05
申请号：US13713599
申请日：2012-12-13
申请人： Electronics and Telecommunications Research Institute , Soongsil University-Industry Cooperation Foundation
发明人： Dong-Uk Sim , Young Jun Chong , Yong Moon , Hyeon Seok Jang
IPC分类号： H03B5/00
CPC分类号： H03B7/00 , H03B1/00 , H03B5/18 , H03B2200/0016 , H03B2200/0048
摘要： A voltage controlled oscillator includes a split ring resonator (SRR) configured to have meta-material characteristics fabricated on a board, and an energy compensation circuit configured to cause resonant oscillation of the SRR. The energy compensation circuit is fabricated in the form of an integrated circuit.
摘要翻译：压控振荡器包括被配置为具有在板上制造的超常材料特性的分裂环谐振器（SRR）和被配置为引起SRR的共振振荡的能量补偿电路。能量补偿电路以集成电路的形式制造。

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