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公开(公告)号：US20180102816A1
公开(公告)日：2018-04-12
申请号：US15831243
申请日：2017-12-04
Inventor： 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
CPC classification number: H04B7/024 , H04B7/0452 , H04B7/0617 , H04L1/00 , H04L1/1685 , H04W48/00 , H04W84/12 , H04W88/08
Abstract: 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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32.发明申请公开(公告)号：US20180063734A1
公开(公告)日：2018-03-01
申请号：US15805787
申请日：2017-11-07
Inventor： Jin Hyung OH , Bang Chul JUNG , Hu JIN , Myung Sun SONG
CPC classification number: H04W24/08 , H04B7/0695 , H04W24/02 , H04W74/006 , H04W74/0833
Abstract: 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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公开(公告)号：US20170331568A1
公开(公告)日：2017-11-16
申请号：US15442341
申请日：2017-02-24
Inventor： Jin Hyung OH , Myung Sun SONG , Heon Jin Hong
IPC: H04B17/345 , H04L12/24 , H04W16/28 , H04W72/04
CPC classification number: H04B17/345 , H04W72/0453 , H04W72/082
Abstract: An apparatus for interference alignment in a cellular communication network includes a preparation message receiver configured to receive interference alignment preparation messages from receivers; a grouper configured to group the receivers with reference to the received interference alignment preparation messages according to an interference alignment algorithm; and an interference aligner configured to perform interference alignment based on a bandwidth secured for the receivers.
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公开(公告)号：US20170194992A1
公开(公告)日：2017-07-06
申请号：US15188045
申请日：2016-06-21
Inventor： Bong Su KIM , Min Soo KANG , Kwang Seon KIM , Woo Jin BYUN , Myung Sun SONG
CPC classification number: H04B1/10 , H04B1/18 , H04B7/0413 , H04B7/0452 , H04B7/08 , H04B7/0848
Abstract: Provided are a multi-input multi-output system which overcomes a disadvantage that optimal receiving performance cannot be maintained according to an installation environment and a performance change of a receiver when a receiving module is configured by using a fixed attenuator and a fixed phase in a line-of-sight multi-input multi-output system configuration and analogously controls an interference removing module of a receiver including a variable attenuator and a phase shifter which are controllable to enhance a receiving performance and increase frequency efficiency, in order to maximize a signal-to-interference ratio of each path and an operating method thereof.
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Patent Agency Ranking
35.发明申请METHOD AND APPARATUS FOR INTERFERENCE ALIGNMENT AND MULTI-ANTENNA SIGNAL PROCESS IN WIRELESS NETWORK 审中-公开无线网络中干扰对齐和多天线信号过程的方法与装置公开(公告)号：US20160359606A1
公开(公告)日：2016-12-08
申请号：US15172466
申请日：2016-06-03
Inventor： Jin Hyung OH , Sang Woon JEON , Myung Sun SONG
CPC classification number: H04W74/0833 , H04B7/0452 , H04B7/0456 , H04B7/0617 , H04L5/0023 , H04L5/0032 , H04L5/0073
Abstract: 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.
Abstract translation: 提供了一种使用干扰对准的无线通信系统中的通信方法。 该方法包括：通过使用N1（自然数）的第一接收天线，由第一AP接收数据流，并且通过在无线中使用N2（自然数）第二接收天线，由第二AP接收数据流 包括第一AP和第二AP的通信系统，其通过具有给定数量的m（自然数）发送天线的一个或多个用户终端发送的发送波束接收数据流; 并且更新以选择性地将新连接到第一AP和第二AP的用户终端的一部分添加到一组连接的用户终端，并且通过应用连接的用户终端的组中的每个终端发送线性独立的发送波束 对于所连接的用户终端的更新组，对于多个第一和第二接收天线的干扰对准。
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36.发明申请METHOD AND APPARATUS FOR INTERFERENCE ALIGNMENT IN MULTI-ANTENNA WIRELESS NETWORK HAVING COEXISTED UPLINK AND DOWNLINK 审中-公开多天线无线网络干扰对齐的方法与装置具有共享的上行链路和下行链路公开(公告)号：US20160359540A1
公开(公告)日：2016-12-08
申请号：US15172449
申请日：2016-06-03
Inventor： Jin Hyung OH , Sang Woon JEON , Chang Ho SUH , Myung Sun SONG
CPC classification number: H04B7/0617 , H04B7/024 , H04B7/0452 , H04J11/0056
Abstract: Provided is a communication method in a wireless communication system using interference alignment. The method includes: transmitting a transmission beam for separated data stream to N1 (natural number) user terminals by using M1 (natural number) antennas, by a first AP in a downlink cell; and receiving a reception beam for separated data stream from N2 (natural number) user terminals by using M2 (natural number) antennas, by a second AP in an uplink cell, wherein the first AP transmits linear independent transmission beams to improve a degree of freedom while the second AP simultaneously receives orthogonal reception beams, by simultaneously reflecting interference alignment between two cells including downlink and uplink cells.
Abstract translation: 提供了一种使用干扰对准的无线通信系统中的通信方法。 该方法包括：通过下行链路小区中的第一AP通过使用M1（自然数）天线向N1（自然数）用户终端发送分离的数据流的发送波束; 并且通过使用M2（自然数）天线，通过上行链路小区中的第二AP接收来自N2（自然数）用户终端的分离数据流的接收波束，其中第一AP传输线性独立发射波束以提高自由度 而第二AP同时接收正交接收波束，同时反射包括下行链路和上行链路小区在内的两个小区之间的干扰对准。
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37.发明申请公开(公告)号：US20150181456A1
公开(公告)日：2015-06-25
申请号：US14490780
申请日：2014-09-19
Inventor： Igor KIM , Gwang Zeen KO , Jin Hyung OH , Hyun Duk KANG , Myung Sun SONG
IPC: H04W28/02 , H04L12/26 , H04L12/875 , H04W24/08
CPC classification number: H04L47/56 , H04L43/0852 , H04L43/0858 , H04L47/25 , H04L47/28 , H04L47/30 , H04W24/08 , H04W74/08
Abstract: Provided is a frame transmission method and apparatus for controlling a one-way delay, the apparatus determining channel access delay between a reaching time at which at pre previous transmission frame reaches a head of a transmission queue and a transmission time at which the previous transmission frame it actually transmitted, and transmitting a current frame in a transmission mode determined by estimating a probability related to the transmission mode based on the channel access delay.
Abstract translation: 提供了一种用于控制单向延迟的帧发送方法和装置，该装置确定在先前传输帧之前到达传输队列的头部的到达时间与之前传输帧的传输时间之间的信道接入延迟 它实际上以基于信道访问延迟估计与传输模式相关的概率所确定的传输模式发送和发送当前帧。
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公开(公告)号：US20150146803A1
公开(公告)日：2015-05-28
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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39.发明申请APPARATUS AND METHOD FOR PARTIAL INTERFERENCE ALIGNMENT IN MULTI-ANTENNA COMMUNICATION SYSTEM 审中-公开用于多天线通信系统中部分干扰对准的装置和方法公开(公告)号：US20140349581A1
公开(公告)日：2014-11-27
申请号：US13946195
申请日：2013-07-19
Inventor： Jinhyung OH , Gwangzeen KO , Igor KIM , Myung Sun SONG
IPC: H04L25/08
CPC classification number: H04L25/03891 , H04B7/024 , H04L25/03343 , H04L2025/03426
Abstract: A method for a partial interference alignment in a multi-antenna communication system includes, checking the number of access points (APs) operating at the same channel or adjacent channel; and calculating LIPs (Leakage Interference Power) that the respective APs have an effect on each base-station (STA). Further, the method includes choosing the upper three AP-STA pairs having the highest LIP in order as a candidate group for interference alignment; and performing a partial interference alignment on the candidate group for interference alignment.
Abstract translation: 一种用于多天线通信系统中的部分干扰对准的方法包括：检查在相同信道或相邻信道上操作的接入点（AP）的数量; 以及计算各个AP对每个基站（STA）具有影响的LIP（泄漏干扰功率）。 此外，该方法包括选择具有最高LIP的上三个AP-STA对作为用于干扰对准的候选组; 以及对所述候选组进行干扰对准的部分干扰对准。
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