METHOD AND APPARATUS FOR CREATING A MULTI-USER MIMO CODEBOOK USING A SINGLE USER MIMO CODEBOOK
    2.
    发明申请
    METHOD AND APPARATUS FOR CREATING A MULTI-USER MIMO CODEBOOK USING A SINGLE USER MIMO CODEBOOK 审中-公开
    用于使用单用户MIMO CODEBOOK创建多用户MIMO码书的方法和装置

    公开(公告)号:US20090046801A1

    公开(公告)日:2009-02-19

    申请号:US12190296

    申请日:2008-08-12

    IPC分类号: H04L27/28

    摘要: A wireless communication method and apparatus for creating a codebook in a multiple input/multiple output (MIMO) wireless communication system are disclosed. The method includes adapting a single user codebook, wherein the single user codebook comprises a plurality single user beamforming vectors, into a multi-user codebook, wherein the multi-user codebook comprises a plurality of multi-user beamforming vectors. The method further includes grouping the codebook into a plurality of unitary matrices, selecting a plurality of beamforming vectors from the plurality of unitary matrices, forming a rank specific code-book from the beamforming vectors and the unitary matrices, and selecting a subset of a total number of pairs to form the plurality of unitary matrices.

    摘要翻译: 公开了一种用于在多输入/多输出(MIMO)无线通信系统中创建码本的无线通信方法和装置。 该方法包括使单用户码本将单用户码本包括多个单用户波束形成向量,并将其转换成多用户码本,其中该多用户码本包括多个多用户波束形成向量。 该方法还包括将码本分组为多个酉矩阵,从多个单一矩阵中选择多个波束成形向量,从波束形成向量和酉矩阵形成等级特定码本,并选择总数的子集 成对数以形成多个单一矩阵。

    Method and apparatus for measuring and reporting a rank and a precoding matrix for multiple-input multiple-output communication
    7.
    发明授权
    Method and apparatus for measuring and reporting a rank and a precoding matrix for multiple-input multiple-output communication 有权
    用于测量和报告用于多输入多输出通信的秩和预编码矩阵的方法和装置

    公开(公告)号:US08072899B2

    公开(公告)日:2011-12-06

    申请号:US12496129

    申请日:2009-07-01

    IPC分类号: H04L12/26 H04L17/28 H04B7/00

    摘要: A method and apparatus for measuring and reporting a rank and/or a precoding matrix for multiple-input multiple-output (MIMO) communication are disclosed. A metric indicating a channel condition is measured and a rank is selected based on the metric. The metric may be a signal-to-interference and noise ratio (SINR), throughput, a block error rate (BLER), system capacity, a sum rate, or the like. An SINR for each radio block group (RBG) for each rank is calculated. A data rate is calculated for each RBG based on the SINR for each rank. An overall rate for all RBGs is calculated for each rank. At least one rank is selected based on the overall rate. At least one precoding matrix may be selected jointly with or separately from the at least one rank.

    摘要翻译: 公开了一种用于测量和报告用于多输入多输出(MIMO)通信的秩和/或预编码矩阵的方法和装置。 测量指示信道条件的度量,并且基于度量来选择秩。 该度量可以是信号与干扰和噪声比(SINR),吞吐量,块错误率(BLER),系统容量,和速率等。 计算每个等级的每个无线电块组(RBG)的SINR。 基于每个等级的SINR计算每个RBG的数据速率。 对每个等级计算所有RBG的总体利率。 基于总体速率选择至少一个等级。 至少一个预编码矩阵可以与至少一个等级联合或分开选择。

    METHOD AND APPARATUS FOR MEASURING AND REPORTING A RANK AND A PRECODING MATRIX FOR MULTIPLE-INPUT MULTIPLE-OUTPUT COMMUNICATION
    9.
    发明申请
    METHOD AND APPARATUS FOR MEASURING AND REPORTING A RANK AND A PRECODING MATRIX FOR MULTIPLE-INPUT MULTIPLE-OUTPUT COMMUNICATION 有权
    用于测量和报告多输入多输出通信的RANK和预编码矩阵的方法和装置

    公开(公告)号:US20120076182A1

    公开(公告)日:2012-03-29

    申请号:US13311110

    申请日:2011-12-05

    IPC分类号: H04B1/38

    摘要: A method and apparatus for measuring and reporting a rank and/or a precoding matrix for multiple-input multiple-output (MIMO) communication are disclosed. A metric indicating a channel condition is measured and a rank is selected based on the metric. The metric may be a signal-to-interference and noise ratio (SINR), throughput, a block error rate (BLER), system capacity, a sum rate, or the like. An SINR for each radio block group (RBG) for each rank is calculated. A data rate is calculated for each RBG based on the SINR for each rank. An overall rate for all RBGs is calculated for each rank. At least one rank is selected based on the overall rate. At least one precoding matrix may be selected jointly with or separately from the at least one rank.

    摘要翻译: 公开了一种用于测量和报告用于多输入多输出(MIMO)通信的秩和/或预编码矩阵的方法和装置。 测量指示信道条件的度量,并且基于度量来选择秩。 该度量可以是信号与干扰和噪声比(SINR),吞吐量,块错误率(BLER),系统容量,和速率等。 计算每个等级的每个无线电块组(RBG)的SINR。 基于每个等级的SINR计算每个RBG的数据速率。 对每个等级计算所有RBG的总体利率。 基于总体速率选择至少一个等级。 至少一个预编码矩阵可以与至少一个等级联合或分开选择。