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公开(公告)号：KR1020100117897A
公开(公告)日：2010-11-04
申请号：KR1020090036609
申请日：2009-04-27
Applicant: 삼성전자주식회사
IPC: H04B7/04
CPC classification number: H04B7/0482 , H04B7/0486
Abstract: PURPOSE: A method for designing a code book and a method for using a code book are provided to effectively update the code book if a base station includes an eight transmission antennas. CONSTITUTION: A predesigned codebook is stored(S310). The state of a channel between a base station and a user is recognized(S320). A transmission rank is adaptively determined(S330). Based on a plurality of matrixes within the codebook and consider the channel information and the transmission link, a precoding matrix is determined(S340). By using the determined precoding matrix, precoding of data streams is performed(S350).
Abstract translation: 目的：提供一种用于设计代码簿的方法和使用代码簿的方法，以便如果基站包括八个发送天线，则有效地更新代码簿。 构成：存储预先设计的码本（S310）。 识别基站与用户之间的信道的状态（S320）。 自适应地确定发送等级（S330）。 基于码本内的多个矩阵并考虑信道信息和传输链路，确定预编码矩阵（S340）。 通过使用确定的预编码矩阵，执行数据流的预编码（S350）。
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公开(公告)号：KR1020090113168A
公开(公告)日：2009-10-29
申请号：KR1020080133560
申请日：2008-12-24
Applicant: 삼성전자주식회사 , 퍼듀 리서치 파운데이션
CPC classification number: H04B7/0639 , H04B7/0456 , H04B7/0634
Abstract: PURPOSE: A multiple antenna transmission system for feeding back an index of a code word matrix is provided to enable a base station and a terminal to recognize a channel between the base station and the terminal in which transmission antennas are installed and enable the user to use a new code book to provide feedback information to the base station and generate a transmission signal for the terminal using the new code book and feedback information. CONSTITUTION: A multiple antenna transmission system for feeding back an index of a code word matrix comprises the following steps. A channel between a base station(200) and a terminal in which transmission antennas are installed is recognized. A previous code book is updated to a new code book in consideration of a change of a channel according to time flow. The previous code book is updated to the new code book based on a time correlation coefficient of a null or corresponding information thereof.
Abstract translation: 目的：提供一种用于反馈码字矩阵索引的多天线传输系统，以使基站和终端能够识别基站与安装有发射天线的终端之间的信道，并使用户能够使用 一个新的代码簿，用于向基站提供反馈信息，并使用新的代码簿和反馈信息生成终端的传输信号。 构成：用于反馈代码字矩阵的索引的多天线传输系统包括以下步骤。 识别基站（200）和安装有发送天线的终端之间的信道。 考虑到根据时间流量改变频道，以前的代码簿被更新为新的代码簿。 基于空值或其对应信息的时间相关系数将前一代码簿更新为新的代码簿。
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公开(公告)号：KR101608708B1
公开(公告)日：2016-04-04
申请号：KR1020090093928
申请日：2009-10-01
Applicant: 삼성전자주식회사
Abstract: 유니터리매트릭스들을포함하는차등코드북을이용하는다중입출력통신시스템이제공된다. 수신기는복수의유니터리매트릭스들을포함하는차등코드북로부터수신기의이전선호코드워드와명시적피드백(explicit feedback) 정보-상기수신기및 송신기사이의명시적채널매트릭스와관련된것임-사이의관계에대응하는대상유니터리매트릭스를검색하고, 상기대상유니터리매트릭스에관한정보를피드백한다. 송신기는대상유니터리매트릭스를기초로수신기의선호코드워드를파악할수 있다.
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公开(公告)号：KR101517153B1
公开(公告)日：2015-04-30
申请号：KR1020090038887
申请日：2009-05-04
Applicant: 삼성전자주식회사 , 퍼듀 리서치 파운데이션
CPC classification number: H04B7/0417 , H04B7/0482 , H04B7/0639 , H04L1/0001
Abstract: 기지국및 단말의통신방법이제공된다. 기지국및 단말은복수의전송안테나들이설치된기지국및 적어도하나의단말사이의채널을인지하고, 시간의흐름에따른상기채널의변화를고려하여새로운코드북으로이전(previous) 코드북을업데이트할수 있다. 이때, 단말은새로운코드북을이용하여기지국으로피드백정보를제공하고, 기지국은새로운코드북및 피드백정보를이용하여단말을위한전송신호를생성할수 있다.
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公开(公告)号：KR1020110036374A
公开(公告)日：2011-04-07
申请号：KR1020090094003
申请日：2009-10-01
Applicant: 삼성전자주식회사
IPC: H04B7/04
CPC classification number: H04B7/0626 , H04B7/0634 , H04B7/0417 , H04B7/0456
Abstract: PURPOSE: A multiple-input/output communication system using an explicit feedback is provided to share an explicit channel matrix through a vectorization. CONSTITUTION: A channel estimator(720) calculates explicit channel matrix between a transmitter and a receiver. A vectorization unit(730) vectorizes the explicit channel matrix or a processed the explicit channel matrix through a predetermined function in order to generate an explicit feedback vector. A feedback information generator(740) generates feedback information using a predetermined code book and the explicit feedback vector. The predetermined code book includes a plurality of code words as candidates for the explicit feedback vector.
Abstract translation: 目的：提供使用显式反馈的多输入/输出通信系统，以通过向量化来共享显式信道矩阵。 构成：信道估计器（720）计算发射机和接收机之间的显式信道矩阵。 向量化单元（730）通过预定的函数对显式信道矩阵或经处理的显式信道矩阵进行向量化，以便生成明确的反馈向量。 反馈信息发生器（740）使用预定码本和显式反馈矢量产生反馈信息。 预定码本包括作为显式反馈矢量候选的多个码字。
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Patent Agency Ranking
公开(公告)号：KR1020090113230A
公开(公告)日：2009-10-29
申请号：KR1020090038887
申请日：2009-05-04
Applicant: 삼성전자주식회사 , 퍼듀 리서치 파운데이션
CPC classification number: H04B7/0417 , H04B7/0482 , H04B7/0639 , H04L1/0001 , H04B7/0619
Abstract: PURPOSE: A multiple antenna communication system for adaptively updating and changing codebooks is provided to enable a terminal to supply feedback information to a currently used codebook and enable a base station to recognize a channel using feedback information, thereby recognizing a channel of a current time using the feedback information due to movement of the terminal if a channel before the movement is known. CONSTITUTION: A multiple antenna communication system for adaptively updating and changing codebooks comprises the following steps. A communication method of a base station(200) and a terminal is provided. A terminal provides feedback information to a base station using a new codebook. The base station generates a transmission signal for a terminal using the new codebook and feedback information.
Abstract translation: 目的：提供一种用于自适应地更新和改变码本的多天线通信系统，以使得终端能够向当前使用的码本提供反馈信息，并且使得基站能够使用反馈信息来识别信道，由此识别当前时间的信道 如果移动之前的通道是已知的，则由于终端的移动而引起的反馈信息。 构成：用于自适应地更新和改变码本的多天线通信系统包括以下步骤。 提供了基站（200）和终端的通信方法。 终端使用新的码本向基站提供反馈信息。 基站使用新的码本和反馈信息生成终端的发送信号。
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公开(公告)号：KR1020080087369A
公开(公告)日：2008-10-01
申请号：KR1020070029478
申请日：2007-03-26
Applicant: 삼성전자주식회사
CPC classification number: H04B7/0417 , H04B7/0617 , H04B7/0632 , H04B7/0634 , H04B7/0639 , H04B7/0691 , H04B7/0697 , H04B7/0456
Abstract: A precoding apparatus in a MIMO(Multiple Input Multiple Output) wireless communication system and a method thereof are provided to improve the average SINR(Signal to Interference and Noise Ratio) by obtaining beamforming gain through intra-precoders in order to increase the number of Tx signal columns. In the case of 4 Tx antennas, a maximum of 4 modulation symbol columns can be transmitted. In this case, a pair of modulation symbol columns 1 and 3 and another pair of modulation symbol columns 2 and 4 respectively are inputted to the first inter-group precoder(301a) and the second inter-group precoder(301b). The first output of the first inter-group precoder is inputted to the first intra-group precoder(303a). The second output of the first inter-group precoder is inputted to the second intra-group precoder(303b). The first output of the second inter-group precoder is inputted to the second intra-group precoder. The second output of the second inter-group precoder is inputted to the second intra-group precoder.
Abstract translation: 提供了MIMO（多输入多输出）无线通信系统中的预编码装置及其方法，以通过预编码器获得波束成形增益来提高平均SINR（信噪比和噪声比），以增加Tx 信号列。 在4个Tx天线的情况下，可以发送最多4个调制符号列。 在这种情况下，一对调制符号列1和3以及另一对调制符号列2和4分别被输入到第一组间预编码器（301a）和第二组间预编码器（301b）。 第一组间预编码器的第一输出被输入到第一组内预编码器（303a）。 第一组间预编码器的第二输出被输入到第二组内预编码器（303b）。 第二组间预编码器的第一输出被输入到第二组内预编码器。 第二组间预编码器的第二输出被输入到第二组内预编码器。
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公开(公告)号：KR101594815B1
公开(公告)日：2016-02-29
申请号：KR1020090085724
申请日：2009-09-11
Applicant: 삼성전자주식회사
Abstract: 기지국및 적어도하나의단말을포함하는다중입출력통신시스템은코드북을적응적으로변환한다. 적어도하나의단말각각은채널매트릭스에포함된적어도두 개의서브채널매트릭스들을기초로적어도두 개의상관매트릭스들을계산하고, 기지국으로적어도두 개의상관매트릭스들과관련된정보를피드백한다. 적어도하나의단말각각은두 개의상관매트릭스들을기초로코드북을변환하며, 기지국은그 정보를이용하여그 두개의상관매트릭스들을파악한후, 코드북을변환한다.
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公开(公告)号：KR101518998B1
公开(公告)日：2015-05-11
申请号：KR1020080119734
申请日：2008-11-28
Applicant: 삼성전자주식회사 , 퍼듀 리서치 파운데이션
IPC: H04B7/02
Abstract: 편파에 적응적인 코드북을 사용하는 단말기 및 기지국이 개시된다. 단말기는 전송 신호의 편파 식별도(cross polarization discrimination value, XPD)에 상응하는 회전 매트릭스들을 생성하는 회전 매트릭스 생성부 및 미리 저장된 블록 대각(block diagonal) 매트릭스들 및 상기 회전 매트릭스들을 기초로 생성된 결과 매트릭스들을 포함하는 코드북을 생성하는 코드북 생성부를 포함한다.
다중 편파, 프리코딩, 코드북, 편파 식별도, XPD, 블록 대각 매트릭스, 회전 매트릭스Abstract translation: 公开了使用偏振自适应码本的终端和基站。 该终端包括：旋转矩阵生成器，用于生成与发送信号的交叉偏振识别值（XPD）对应的旋转矩阵;预存储块对角矩阵;以及基于旋转矩阵生成的结果矩阵 以及用于生成包括该码本的码本的码本生成器。
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