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1.发明授权公开(公告)号：US10111253B2
公开(公告)日：2018-10-23
申请号：US15172466
申请日：2016-06-03
发明人： Jin Hyung Oh , Sang Woon Jeon , Myung Sun Song
摘要： Provided is a communication method in a wireless communication system using an interference alignment. The method includes: receiving, by a first AP, a data stream by using N1 (natural number) first reception antennas, and receiving, by a second AP, the data stream by using N2 (natural number) second reception antennas, in a wireless communication system including the first AP and the second AP which receive the data stream through a transmission beam which one or more user terminals having m (natural number) transmission antennas within a given number transmit; and updating to selectively add a part of user terminals which are newly connected to the first AP and the second AP to a set of connected user terminal, and transmitting, by each terminal of the set of connected user terminal, linearly independent transmission beams by applying an interference alignment with respect to a plurality of the first and the second reception antennas for the updated set of connected user terminal.
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公开(公告)号：US09843949B2
公开(公告)日：2017-12-12
申请号：US14744821
申请日：2015-06-19
发明人： Jin Hyung Oh , Bang Chul Jung , Hu Jin , Myung Sun Song
CPC分类号： H04W24/08 , H04B7/0695 , H04W24/02 , H04W74/006 , H04W74/0833
摘要： Provided is a frame transmission method of interference alignment (IA) and controlling, the method including calculating a channel matrix of a basic service set (BSS) by measuring channel information between an access point and a user terminal, performing singular value decomposition (SVD) based on the calculated channel matrix, selecting a beamforming vector in consideration of an interference amount associated with another access point based on the SVD performed by the channel matrix, and calculating a leakage interference (LIF) value based on the selected beamforming vector.
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3.发明授权Method of communicating between base station and terminal based on interference alignment in multi-cell multi-user multiple-input multiple-output (MIMO) interference channel and method and apparatus of communication using interference alignment and block successive interference pre-cancellation in multi-user multiple-input multiple-output interference channel 有权基于多小区多用户多输入多输出（MIMO）干扰信道中的干扰对准的基站和终端之间的通信方法以及在多用户中使用干扰对准和块连续干扰预取消的通信方法和装置 多输入多输出干扰信道公开(公告)号：US09236922B2
公开(公告)日：2016-01-12
申请号：US13845760
申请日：2013-03-18
发明人： Jae Hyun Park , Sung Jin Yoo , Myung Sun Song , Byung Jang Jeong , Jae Ick Choi
CPC分类号： H04B7/0456
摘要： A communication method of a base station and a terminal based on interference alignment in a multi-cell multi-user multiple-input multiple-output (MIMO) interference channel and a method and apparatus of communication using interference alignment and block successive interference pre-cancellation in a multi-user MIMO interference channel. The base station may determine a precoding matrix to maximize a signal to interference and noise ratio (SINR) and a signal to leakage and noise ratio (SLNR) in the interference channel, and a terminal communicating with the base station may determine a decoding matrix to align interference. The transmitter including a multicell interference channel may calculate a rotation matrix for interference alignment, identify effective symbol vectors using the rotation matrix, and generate a transmit signal of a target transmitter to pre-cancel interference corresponding to a transmit signal of a neighboring transmitter.
摘要翻译： 基于多小区多用户多输入多输出（MIMO）干扰信道中的干扰对准的基站和终端的通信方法以及使用干扰对准和块连续干扰预取消的通信的方法和装置 在多用户MIMO干扰信道中。 基站可以确定预编码矩阵以使干扰信道中的信号与干扰和噪声比（SINR）以及信号与泄漏和噪声比（SLNR）最大化，并且与基站通信的终端可以确定解码矩阵 对准干扰。 包括多小区干扰信道的发射机可以计算用于干扰对准的旋转矩阵，使用旋转矩阵识别有效符号向量，并且生成目标发射机的发射信号以预先抵消与相邻发射机的发射信号相对应的干扰。
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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
发明人： Kwang Seon Kim , Min Soo Kang , Bong Su Kim , Woo Jin Byun , Jong Soo Lim , Myung Sun Song , Jae Ick Choi
CPC分类号： H04L25/0204 , H04B7/0413 , H04B7/0604 , H04L1/0002 , H04L1/0011 , H04L1/06 , H04L5/0023 , H04L25/00 , H04L27/0008 , H04L27/34
摘要： 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.
摘要翻译： 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：US10284325B2
公开(公告)日：2019-05-07
申请号：US15251198
申请日：2016-08-30
发明人： Min Soo Kang , Kwang Seon Kim , Myung Sun Song , Woo Jin Byun , Bong Su Kim
IPC分类号： H04J14/04 , H04J14/06 , H01Q9/04 , H01Q5/55 , H04B10/116
摘要： An apparatus for orbital angular momentum (OAM) mode combination and an antenna apparatus for multi-mode generation are provided. The apparatus for OAM mode combination includes three input ports configured to receive independent OAM mode signals, four output ports configured to output OAM mode signals with the same or different phase delays; and a circuit element configured to simultaneously combine or distribute the OAM mode signals by controlling phases of output signals output through the four output ports to be different depending on the OAM mode signals received through the input ports.
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公开(公告)号：US10039007B2
公开(公告)日：2018-07-31
申请号：US14890946
申请日：2014-05-09
发明人： Hyun Duk Kang , Gwang Zeen Ko , Myung Sun Song
摘要： Disclosed is an operating method of each entity in a coexistence management system that manages a plurality of frequency sharing devices. To perform operations of respective entities (a coexistence enabler (CE), a coexistence manager (CM), and a coexistence discovery and information server (CDIS)), a state machine of the entities is defined as inactive, active, waiting engagement, engaged, request-sent, and request-received states.
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7.发明授权公开(公告)号：US09270501B2
公开(公告)日：2016-02-23
申请号：US14272973
申请日：2014-05-08
发明人： Jinhyung Oh , Gwangzeen Ko , Igor Kim , Myung Sun Song , Hyun Ho Lee , Myeong Jin Kim , Young Chai Ko
CPC分类号： H04L25/0391 , H04B7/0417 , H04B7/0452 , H04B7/0626 , H04B7/0632 , H04L25/0202 , H04L25/021 , H04L25/0242 , H04L25/03955
摘要： Disclosed is a method for removing signal interference in a MIMO-based interference removing apparatus including transmitting a reference signal to at least one receiver; if channel information is estimated by the receiver, receiving the estimated channel information from the receiver as a feedback signal; and producing transmission pre-coding matrix, beam forming matrix, and weighted matrix using the received channel information. Further, the method includes transmitting information containing the transmission pre-coding matrix, the beam forming matrix, and the weighted matrix by including them in a pilot signal to the receiver, and the MIMO-based interference removing apparatus comprises at least one transmitter.
摘要翻译： 公开了一种在基于MIMO的干扰去除装置中消除信号干扰的方法，包括：向至少一个接收机发送参考信号; 如果接收机估计信道信息，则从接收机接收所估计的信道信息作为反馈信号; 并使用所接收的信道信息产生传输预编码矩阵，波束形成矩阵和加权矩阵。 此外，该方法包括通过将包含发送预编码矩阵，波束形成矩阵和加权矩阵的信息包括在导频信号中而发送到接收机，并且基于MIMO的干扰去除装置包括至少一个发射机。
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公开(公告)号：US10454534B2
公开(公告)日：2019-10-22
申请号：US15831243
申请日：2017-12-04
发明人： Jae Seung Lee , Jin Hyung Oh , Gwang Zeen Ko , Hyun Duk Kang , Hyoung Jin Kwon , Myung Sun Song , Sok Kyu Lee , Min Ho Cheong , Jae Ick Choi
摘要： Disclosed is a communication method using interference alignment in a wireless local area network (WLAN). An access point (AP) according to one embodiment may receive first channel information between a station associated with the AP and the AP and second channel information between the station and a neighboring AP to perform interference alignment in cooperation with the AP from the station, and perform interference alignment based on the first channel information and the second channel information.
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公开(公告)号：US10405372B2
公开(公告)日：2019-09-03
申请号：US15722492
申请日：2017-10-02
发明人： Jin Hyung Oh , Gwang Zeen Ko , Hyun Duk Kang , Igor Kim , Myung Sun Song
摘要： Provided are a frame transmission method performed in an access point (AP), a frame reception method performed in a terminal, and an AP. The frame transmission method performed in an AP includes acquiring a channel for transmitting a first data unit of a first terminal, when a data unit to be transmitted to at least one terminal other than the first terminal is in the AP, generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) including the first data unit and the data unit to be transmitted to the at least one terminal, and transmitting the PPDU to the first terminal and the at least one terminal. Accordingly, it is possible to improve the performance of a wireless local area network (WLAN).
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10.发明授权公开(公告)号：US10154449B2
公开(公告)日：2018-12-11
申请号：US15529013
申请日：2015-11-20
发明人： Hyun Duk Kang , Gwang Zeen Ko , Igor Kim , Myung Sun Song
摘要： The present invention relates to a method and a system for discovering an adjacent access point between multi-band wireless LAN access points, and to a method and a system for discovering an adjacent neighboring access point between access points in order to solve an interference problem between the access points in a wireless LAN using multi-bands.
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