Multiple antenna communication system including adaptive updating and changing of codebooks
    22.
    发明授权
    Multiple antenna communication system including adaptive updating and changing of codebooks 有权
    多天线通信系统包括自适应更新和码本的改变

    公开(公告)号:US08498358B2

    公开(公告)日:2013-07-30

    申请号:US12429937

    申请日:2009-04-24

    IPC分类号: H04B7/02

    CPC分类号: H04B7/0417

    摘要: Communication between a base station with multiple transmission antennas and a mobile station is provided. The base station and the mobile station may recognize or estimate, respectively, a channel between the base station and the mobile station, and update a previous codebook with a new codebook based on a variation of the channel. In this instance, the mobile station may provide feedback information to the base station using the new codebook, and the base station may generate a transmission signal for the mobile station using the new codebook and the feedback information.

    摘要翻译: 提供了具有多个发送天线的基站与移动台之间的通信。 基站和移动台可以分别识别或估计基站和移动站之间的信道,并且基于信道的变化用新码本更新先前的码本。 在这种情况下,移动台可以使用新的码本向基站提供反馈信息,并且基站可以使用新的码本和反馈信息来生成针对移动台的发送信号。

    System for feeding back index of codeword matrix
    24.
    发明授权
    System for feeding back index of codeword matrix 有权
    用于反馈码字矩阵索引的系统

    公开(公告)号:US08160125B2

    公开(公告)日:2012-04-17

    申请号:US12109440

    申请日:2008-04-25

    IPC分类号: H04B1/38 H04B7/02 H04L1/02

    CPC分类号: H04B7/0639

    摘要: A system is provided for performing downlink beamforming based on information fed back by a mobile station. The mobile station includes a channel matrix generation unit to generate a channel matrix with respect to channels ranging from a base station to a mobile station, the base station including multiple transmission antennas, a codebook updating unit to generate a second codebook including a plurality of second codeword matrixes based on the generated channel matrix and a first codebook including a plurality of first codeword matrixes, a codeword selection unit to select at least one transmission codeword matrix from among the plurality of second codeword matrixes, a transmission unit to transmit an index of the selected transmission codeword matrix to the base station, and a receiving unit to receive data transmitted from the base station via the multiple transmission antennas.

    摘要翻译: 提供一种用于基于由移动台反馈的信息来执行下行链路波束成形的系统。 移动站包括:信道矩阵生成单元,生成相对于从基站到移动站的信道的信道矩阵,所述基站包括多个发送天线,码本更新单元,生成包含多个秒的第二码本 基于生成的信道矩阵的码字矩阵和包括多个第一码字矩阵的第一码本,从所述多个第二码字矩阵中选择至少一个发送码字矩阵的码字选择单元,发送所述多个第一码字矩阵的索引的发送单元, 所选择的发送码字矩阵到基站,接收单元经由多个发送天线接收从基站发送的数据。

    CLUSTERED MULTI-CELL MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATION SYSTEM USING CELL-EDGE USER SELECTION SCHEME
    25.
    发明申请
    CLUSTERED MULTI-CELL MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATION SYSTEM USING CELL-EDGE USER SELECTION SCHEME 有权
    使用细胞边缘用户选择方案的聚合多单元多用户输入多路输出通信系统

    公开(公告)号:US20110064051A1

    公开(公告)日:2011-03-17

    申请号:US12880192

    申请日:2010-09-13

    IPC分类号: H04W36/00

    摘要: Provided is a control method of a control apparatus for a multi-cell communication system including a plurality of cells, the method including determining a cell edge terminal or an inner cell terminal from each of terminals included in each of the cells, and selecting, from base stations included in the plurality of cells, a first base station and a second base station. The first base station may serve all of a corresponding cell edge terminal and a corresponding inner cell terminal, and the second base station may serve only the corresponding inner cell terminal between the corresponding cell edge terminal and the corresponding inner cell terminal.

    摘要翻译: 提供了一种包括多个小区的多小区通信系统的控制装置的控制方法,该方法包括从包含在每个小区中的每个终端确定小区边缘终端或内部小区终端,并从 包括在多个小区中的基站,第一基站和第二基站。 第一基站可以服务于对应的小区边缘终端和对应的内部小区终端,并且第二基站可以仅服务于对应的小区边缘终端和对应的内部小区终端之间的对应的内部小区终端。

    Method and apparatus for transmitting/receiving feedback information and system supporting the same in a multi-user multi-antenna system
    26.
    发明授权
    Method and apparatus for transmitting/receiving feedback information and system supporting the same in a multi-user multi-antenna system 有权
    用于在多用户多天线系统中发送/接收反馈信息的方法和装置及支持该反馈信息的系统

    公开(公告)号:US07689177B2

    公开(公告)日:2010-03-30

    申请号:US11802568

    申请日:2007-05-23

    IPC分类号: H04B1/06

    摘要: A method and apparatus for transmitting/receiving feedback information in a multi-user multi-antenna system and a system supporting the same are provided, in which all possible combinations are created using column vectors included in a precoding codebook, column vectors are correlated in each of the combinations, column vectors comprising correlations exceeding a reference threshold are designated as similar vectors, at least two similar vector sets are formed with the similar vectors, and feedback information is generated based on the at least two similar vector sets and transmitted.

    摘要翻译: 提供了一种用于在多用户多天线系统中发送/接收反馈信息的方法和装置以及支持该多用户多天线系统的系统,其中使用包括在预编码码本中的列向量来创建所有可能的组合,列向量在每个 将包括超过参考阈值的相关性的列向量指定为相似的向量,则使用相似的向量形成至少两个相似的向量集合,并且基于至少两个相似的向量集合生成反馈信息并发送。

    APPARATUS AND METHOD OF GENERATING CODEBOOK FOR MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATION SYSTEM
    27.
    发明申请
    APPARATUS AND METHOD OF GENERATING CODEBOOK FOR MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATION SYSTEM 失效
    多输入多输出通信系统生成代码的装置及方法

    公开(公告)号:US20080256163A1

    公开(公告)日:2008-10-16

    申请号:US12056340

    申请日:2008-03-27

    IPC分类号: G06F17/16 G06F17/30

    CPC分类号: H04B7/0639 H04B7/0417

    摘要: An apparatus and method of generating a codebook. The codebook generation apparatus includes a matrix extender to generate a candidate matrix set by multiplying a base matrix and at least one diagonal matrix, wherein the at least one diagonal matrix includes elements of a constrained set as diagonal elements; and a codebook generator to generate the codebook where a minimum distance between the elements is maximized, based on the candidate matrix set. According to aspects of the present invention, it is possible to provide a precoding codebook that can reduce an amount of feedback from a terminal.

    摘要翻译: 一种生成码本的装置和方法。 码本生成装置包括:矩阵扩展器,用于通过将基本矩阵和至少一个对角矩阵相乘来生成候选矩阵集,其中所述至少一个对角矩阵包括约束集合的元素作为对角元素; 以及码本生成器,用于基于所述候选矩阵集来生成所述元素之间的最小距离最大化的码本。 根据本发明的各方面,可以提供一种可以减少来自终端的反馈量的预编码码本。