利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

45 条记录 (耗时 0.028 秒)

    Clustered multi-cell multi-user multiple input multiple output communication system using cell-edge user selection scheme
    3.
    发明授权
    Clustered multi-cell multi-user multiple input multiple output communication system using cell-edge user selection scheme 有权
    集群多小区多用户多输入多输出通信系统采用小区边缘用户选择方案

    公开(公告)号：US08599751B2

    公开(公告)日：2013-12-03

    申请号：US12880192

    申请日：2010-09-13

    申请人： Bruno Clerckx ,  Ki Il Kim ,  Junil Choi ,  David J. Love ,  Tae Joon Kim ,  Chun Kin Au-Yeung ,  Obadamilola Aluko

    发明人： Bruno Clerckx ,  Ki Il Kim ,  Junil Choi ,  David J. Love ,  Tae Joon Kim ,  Chun Kin Au-Yeung ,  Obadamilola Aluko

    IPC分类号： H04W4/00

    CPC分类号： H04B7/0639 ,  H04B7/022 ,  H04W24/02

    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。

    Rotating reference codebook that is used in a multiple-input multiple-output (MIMO) communication system
    5.
    发明授权
    Rotating reference codebook that is used in a multiple-input multiple-output (MIMO) communication system 有权
    在多输入多输出（MIMO）通信系统中使用的旋转参考码本

    公开(公告)号：US08488708B2

    公开(公告)日：2013-07-16

    申请号：US12819428

    申请日：2010-06-21

    申请人： Junil Choi ,  Bruno Clerckx ,  Ki Il Kim

    发明人： Junil Choi ,  Bruno Clerckx ,  Ki Il Kim

    IPC分类号： H04L1/02

    CPC分类号： H04B7/0417

    摘要： A rotating reference codebook used in a multiple input multiple output (MIMO) communication system is provided. The reference codebook includes codewords from a discrete Fourier transform (DFT) codebook. A base station and a terminal may calculate a rotation matrix based on a previous preferred codeword and a random codeword among codewords included in the DFT codebook. A reference codebook may be rotated using the rotation matrix and may be transformed to a new codebook. The reference codebook may include codewords of a polar cap codebook and the codewords of the DFT codebook. Even though the codewords of the DFT codebook are rotated, the codewords of the DFT codebook may remain in the new codebook as elements of the DFT codebook.

    摘要翻译： 提供了一种在多输入多输出（MIMO）通信系统中使用的旋转参考码本。 参考码本包括来自离散傅里叶变换（DFT）码本的码字。 基站和终端可以基于DFT码本中包括的码字中的先前优选码字和随机码字来计算旋转矩阵。 参考码本可以使用旋转矩阵旋转，并且可以被转换为新的码本。 参考码本可以包括极性码本码字的码字和DFT码本的码字。 即使旋转DFT码本的码字，DFT码本的码字也可以作为DFT码本的元素而保留在新码本中。

    Multiple antenna communication system including adaptive updating and changing of codebooks
    7.
    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

    申请人： Bruno Clerckx ,  Sung Jin Kim ,  Ki Il Kim ,  David J. Love ,  Taejoon Kim

    发明人： Bruno Clerckx ,  Sung Jin Kim ,  Ki Il Kim ,  David J. Love ,  Taejoon Kim

    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
    8.
    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

    申请人： Bruno Clerckx ,  Sung Jin Kim ,  Ki Il Kim ,  David J. Love ,  Taejoon Kim

    发明人： Bruno Clerckx ,  Sung Jin Kim ,  Ki Il Kim ,  David J. Love ,  Taejoon Kim

    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。