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11. 发明申请

WO2009075456A1 METHOD FOR TRANSMISSION INTERFERENCE CANCELLATION FOR MU-MIMO 审中-公开
标题翻译： MU-MIMO传输干扰消除方法
公开(公告)号：WO2009075456A1
公开(公告)日：2009-06-18
申请号：PCT/KR2008/004910
申请日：2008-08-22
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , YEH, Choong il , LEE, Seung Joon , KWON, Dong Seung
发明人： YEH, Choong il , LEE, Seung Joon , KWON, Dong Seung
IPC分类号： H04B7/06
CPC分类号： H04B7/0452 , H04B7/0434 , H04B7/0439 , Y02D70/142 , Y02D70/444
摘要： The present invention relates to a transmission interference cancellation method for a multiuser MIMO system. The method includes decomposing a channel matrix to represent formulae of permutation matrixes including a first matrix and a second matrix; determining an optimal permutation matrix among a plurality of available permutation matrixes using a norm of multiplication of the second matrix and a transmitting data vector; and determining the second matrix using the determined optimal permutation matrix and calculating a transmitting precoding vector using the determined second matrix and the transmitting data vector.
摘要翻译：本发明涉及一种用于多用户MIMO系统的传输干扰消除方法。该方法包括分解信道矩阵以表示包括第一矩阵和第二矩阵的置换矩阵的公式; 使用所述第二矩阵和发送数据向量的乘法范数来确定多个可用置换矩阵中的最优置换矩阵; 以及使用所确定的最优置换矩阵确定所述第二矩阵，并使用所确定的第二矩阵和所述发送数据向量来计算发送预编码向量。

12. 发明申请

WO2009078576A1 METHOD OF CONTROLLING UPLINK POWER 审中-公开
标题翻译：控制上网功能的方法
公开(公告)号：WO2009078576A1
公开(公告)日：2009-06-25
申请号：PCT/KR2008/006308
申请日：2008-10-24
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , KIM, Ji Hyung , KWAK, Byung-Jae , KWON, Dong Seung , KIM, Se-Jin , JANG, Min-Seok , HONG, Een-Kee
发明人： KIM, Ji Hyung , KWAK, Byung-Jae , KWON, Dong Seung , KIM, Se-Jin , JANG, Min-Seok , HONG, Een-Kee
IPC分类号： H04B7/26
CPC分类号： H04W52/242 , H04W52/146 , H04W52/243
摘要： Provided is that a base station that receives an index and a path attenuation difference of a monitoring sector from a mobile station and receives an amount of interference of the monitoring sector from a base station that corresponds to the monitoring sector. In addition, the base station measures an interference state of the monitoring sector by using the amount of interference and the path attenuation difference and calculates a control value of uplink power based on the interference state of the monitoring sector. Further, the base station transmits the control value of the uplink power to the mobile station.
摘要翻译：提供了从移动台接收监视扇区的索引和路径衰减差的基站，并且从与监视扇区对应的基站接收监视扇区的干扰量。此外，基站通过使用干扰量和路径衰减差来测量监视扇区的干扰状态，并且基于监视扇区的干扰状态来计算上行链路功率的控制值。此外，基站向移动台发送上行链路功率的控制值。

13. 发明申请

WO2009078541A1 METHOD FOR BEAMFORMING 审中-公开
标题翻译：射束方法
公开(公告)号：WO2009078541A1
公开(公告)日：2009-06-25
申请号：PCT/KR2008/005099
申请日：2008-08-29
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , CHOI, In-Kyeong , KWON, Dong Seung , KANG, Ji Won , LEE, Chung Yong
发明人： CHOI, In-Kyeong , KWON, Dong Seung , KANG, Ji Won , LEE, Chung Yong
IPC分类号： H04B7/04
CPC分类号： H04B7/0617 , H04B7/0632 , H04B7/0639
摘要： The present invention relates to a method for random beamforming based on a codebook. The method includes generating a first random variable corresponding to a Gaussian distribution; generating a second random variable corresponding to a uniform distribution; generating a plurality of beam elements by using the first variable, the second variable, spatial correlation between channels, and indexes of transmitting antennas; and forming a beam by using the plurality of beam elements.
摘要翻译：本发明涉及一种基于码本的随机波束形成方法。该方法包括生成对应于高斯分布的第一随机变量; 产生对应于均匀分布的第二随机变量; 通过使用第一变量，第二变量，信道之间的空间相关性和发送天线的索引来生成多个波束单元; 以及通过使用所述多个梁元件形成梁。

14. 发明申请

WO2009035264A1 METHOD FOR CHANNEL ESTIMATION AND FEEDBACK IN WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统中信道估计和反馈的方法
公开(公告)号：WO2009035264A1
公开(公告)日：2009-03-19
申请号：PCT/KR2008/005350
申请日：2008-09-10
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , YEH, Choong il , KWON, Dong Seung , AHN, Jee Hwan
发明人： YEH, Choong il , KWON, Dong Seung , AHN, Jee Hwan
IPC分类号： H04L12/26
CPC分类号： H04L25/0224 , H04B7/0452 , H04B7/0626 , H04L5/0007 , H04L5/0048 , H04L25/0204 , H04L43/50
摘要： Disclosed is a method for channel estimation and feedback in a wireless communication system that estimates a channel for each transmission antenna using an orthogonal frequency division multiplexing (OFDM) impulse signal. A method for channel estimation in a wireless communication system includes causing a base station to generate a training signal with a specific waveform for each transmission antenna and to transmit the generated training signal to terminals; causing the terminals to acquire a downlink channel impulse response for each transmission antenna of the base station using the training signal transmitted from the base station; causing the terminals to acquire a downlink channel characteristic for each transmission antenna of the base station using the acquired channel impulse response; causing the terminal to feed back the acquired downlink channel characteristic information to the base station; and causing the base station to perform fast Fourier transform (FFT) on the downlink channel in¬ formation transmitted from the terminals to indirectly acquire full channel status information (CSI).
摘要翻译：公开了一种用于使用正交频分复用（OFDM）脉冲信号估计每个发射天线的信道的无线通信系统中的信道估计和反馈的方法。一种在无线通信系统中进行信道估计的方法，包括：使基站产生具有针对每个发射天线的特定波形的训练信号，并将生成的训练信号发射到终端; 使得终端使用从基站发送的训练信号来获取基站的每个发射天线的下行链路信道脉冲响应; 使得所述终端使用所获取的信道脉冲响应来获取所述基站的每个发送天线的下行链路信道特性; 使所述终端将所获取的下行链路信道特性信息反馈给所述基站; 并且使得基站对从终端发送的下行链路信道接收执行快速傅里叶变换（FFT）以间接获取全信道状态信息（CSI）。

15. 发明申请

WO2010024539A2 METHOD AND TRANSMITTER FOR ITERATIVELY MODIFYING BEAMFORMING VECTOR 审中-公开
标题翻译：用于迭代变形矢量的方法和发射机
公开(公告)号：WO2010024539A2
公开(公告)日：2010-03-04
申请号：PCT/KR2009/004391
申请日：2009-08-06
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , YEH, Choongil , KWON, Dong Seung , KIM, Ji Hung , GESBERT, David
发明人： YEH, Choongil , KWON, Dong Seung , KIM, Ji Hung , GESBERT, David
CPC分类号： H04B7/0617 , H04B7/0619 , H04B7/0626
摘要： An exemplary embodiment of the present invention provides data transmission capacity that is optimized in a communication environment by iteratively modifying a beamforming vector by linearly coupling selfish beamforming with unselfish beamforming using feedback information. The transmitter for modifying the beamforming vector iteratively includes: a feedback receiving module that receives feedback information from a receiver; and a vector determination module that determines an initial beamforming vector by coupling a first vector for the selfish beamforming with a second vector for the unselfish beamforming at the time of initial beamforming, and corrects a coupling ratio of the first vector and the second vector of the beamforming vector with reference to the received feedback information whenever the beamforming is modified.
摘要翻译：本发明的示例性实施例提供了在通信环境中优化的数据传输容量，其通过使用反馈信息线性地耦合自私波束成形与无私波束成形来迭代地修改波束形成向量。用于修改波束形成向量的发射机迭代地包括：反馈接收模块，其从接收机接收反馈信息; 以及矢量确定模块，其通过将用于所述自私波束形成的第一矢量与用于所述初始波束成形时的所述无形波束形成的第二矢量相耦合来确定初始波束成形矢量，并校正所述第一矢量和所述第二矢量的耦合比率每当波束形成被修改时，参考接收的反馈信息的波束成形矢量。

16. 发明申请

WO2009131352A2 METHOD TO GENERATE POWER CONTROL INFORMATION AND METHOD OF POWER CONTROL FOR UPLINK 审中-公开
标题翻译：生成电源控制信息的方法和上电的电源控制方法
公开(公告)号：WO2009131352A2
公开(公告)日：2009-10-29
申请号：PCT/KR2009/002066
申请日：2009-04-21
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , KIM, Ji Hyung , KWON, Dong Seung , KIM, Ju-Hyup , HONG, Een-Kee
发明人： KIM, Ji Hyung , KWON, Dong Seung , KIM, Ju-Hyup , HONG, Een-Kee
IPC分类号： H04W52/34 , H04L27/26
CPC分类号： H04W52/46 , H04L5/0032 , H04L5/0037 , H04L5/0062 , H04L5/0094 , H04W52/40 , H04W52/42
摘要： In a communication system including a plurality of base stations and a plurality of terminals belonging to each of the base stations, the base station receives information on subcarriers allocated to a terminal that belongs to an adjacent base station from the adjacent base station. Thereafter, the base station generates power control information on the basis of the subcarrier information and transmits the power control information to the terminal, and the terminal controls uplink power on the basis of the received power control information. At this time, the power control information, as information based on estimating hitting between subcarriers used by the terminal that belongs to the base station and subcarriers used by the adjacent base station, may be a ratio found by dividing the total number of subcarriers used by each terminal that belongs to the adjacent base station by the entire number of subcarriers that can be used by the base station.
摘要翻译：在包括属于每个基站的多个基站和多个终端的通信系统中，基站从相邻基站接收分配给属于相邻基站的终端的子载波的信息。此后，基站基于子载波信息生成功率控制信息，并向终端发送功率控制信息，并且终端基于接收到的功率控制信息来控制上行链路功率。此时，作为基于由属于基站的终端使用的子载波之间的估计击打的信息和由相邻基站使用的子载波的功率控制信息可以是通过将所使用的副载波的总数除以属于相邻基站的每个终端由基站可以使用的整个子载波数量。

17. 发明申请

WO2009035284A2 MULTIPLE BEAMFORMING METHOD AND APPARATUS 审中-公开
标题翻译：多波束成像方法和装置
公开(公告)号：WO2009035284A2
公开(公告)日：2009-03-19
申请号：PCT/KR2008/005397
申请日：2008-09-11
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , CHOI, In-Kyeong , KWON, Dong Seung , KANG, Ji Won , LEE, Chung Yong
发明人： CHOI, In-Kyeong , KWON, Dong Seung , KANG, Ji Won , LEE, Chung Yong
IPC分类号： H04B7/02
CPC分类号： H04B7/0617
摘要： The present invention relates to a beamforming method and apparatus. A beamforming method for use in a base station for transmitting a plurality of streams through a plurality of antennas includes: receiving feedback information including information on a first codeword selected from a codebook including a plurality of codewords from each of a plurality of user terminals; grouping the plurality of user terminals by use of the feedback information from each user terminal; determining a user terminal to which a plurality of streams will be assigned of the plurality of user terminals, and determining a second codeword to be used for beamforming from the codebook by use of the feedback information of each user terminal and grouping information; and multiplying data to be transmitted through the plurality of steams by the second codeword and a unitary matrix.
摘要翻译：本发明涉及一种波束形成方法和装置。一种在基站中用于通过多个天线发送多个流的波束成形方法包括：从多个用户终端中的每一个接收包括从包括多个码字的码本中选择的第一码字的信息的反馈信息; 通过使用来自每个用户终端的反馈信息对多个用户终端进行分组; 确定将分配多个用户终端的多个流的用户终端，以及通过使用每个用户终端的反馈信息和分组信息来确定要用于来自码本的波束形成的第二码字; 以及将通过所述多个蒸汽发送的数据乘以所述第二码字和酉矩阵。

18. 发明申请

WO2010024603A2 RETRANSMISSION APPARATUS AND METHOD 审中-公开
标题翻译：恢复装置和方法
公开(公告)号：WO2010024603A2
公开(公告)日：2010-03-04
申请号：PCT/KR2009/004785
申请日：2009-08-27
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWON, Dong Seung , KWAK, Byung-Jae , PARK, Bum-Soo
发明人： KWON, Dong Seung , KWAK, Byung-Jae , PARK, Bum-Soo
CPC分类号： H04L1/1893 , H04L1/0003 , H04L1/1816 , H04L1/1819 , H04L1/1887
摘要： A retransmission method maps at least some bits of codeword to symbols according to a first modulation method at the time of first transmission. The retransmission method maps at least some bits of the codeword to symbols according to a second modulation method that is different from the first modulation method at the time of second transmission after the first transmission. In this case, the second modulation method may have a lower modulation order than that of the first modulation method, or a sum of average reliability per bit of symbol according to the second modulation may be larger than a sum of average reliability per bit of symbol according to the first modulation method.
摘要翻译：在第一次发送时，重发方法将码字的至少一些比特根据第一调制方法映射到符号。根据在第一次传输之后的第二次发送时与第一调制方法不同的第二调制方法，重传方法将码字的至少一些比特映射到符号。在这种情况下，第二调制方法可以具有比第一调制方法更低的调制次序，或者根据第二调制的符号的每比特的平均可靠性的总和可以大于符号的每比特的平均可靠性的总和根据第一调制方式。

19. 发明申请

WO2010019015A3 METHOD TO GENERATE BEAMFORMING VECTOR AND PROVIDE THE INFORMATION FOR GENERATING BEAMFORMING VECTOR 审中-公开
公开(公告)号：WO2010019015A3
公开(公告)日：2010-02-18
申请号：PCT/KR2009/004560
申请日：2009-08-14
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY ACADEMIC COOPERATION FOUNDATION OF KYUNGHEE UNIVERSITY , KIM, Ji Hyung , SHIN, Wooram , KWON, Dong Seung , YEH, Choongil , HONG, Een Kee
发明人： KIM, Ji Hyung , SHIN, Wooram , KWON, Dong Seung , YEH, Choongil , HONG, Een Kee
IPC分类号： H04B7/06 , H04B7/08
摘要： A method to generate a beamforming vector by a terminal includes receiving information on a first precoding matrix and a second precoding matrix from a serving base station; and generating a beamforming vector by linearly combining the first precoding matrix and the second precoding matrix.

20. 发明申请

WO2010024619A2 SYMBOL MAPPING APPARATUS AND METHOD 审中-公开
标题翻译：符号映射设备和方法
公开(公告)号：WO2010024619A2
公开(公告)日：2010-03-04
申请号：PCT/KR2009/004826
申请日：2009-08-28
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWON, Dong Seung , KWAK, Byung-Jae , PARK, Bum-Soo
发明人： KWON, Dong Seung , KWAK, Byung-Jae , PARK, Bum-Soo
IPC分类号： H01L1/00 , H04L1/08 , H04L1/18 , H04L5/00
CPC分类号： H04L27/34 , H04L1/007 , H04L1/0086 , H04L1/1819 , H04L1/1874 , H04L1/1893 , H04L27/3405
摘要： In a symbol mapping apparatus, a channel coder outputs a codeword including a plurality of information bits and a plurality of redundancy bits by encoding transmission data. A symbol mapper maps the codeword to the symbol while changing a mapping scheme in the unit of the codeword.
摘要翻译：在符号映射装置中，信道编码器通过对发送数据进行编码来输出包括多个信息比特和多个冗余比特的码字。符号映射器将码字映射到符号，同时以码字为单位改变映射方案。

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