METHOD AND APPARATUS FOR COOPERATIVE MIMO TRANSMISSION OPERATION IN MULTICELL WIRELESS NETWORK
    4.
    发明申请
    METHOD AND APPARATUS FOR COOPERATIVE MIMO TRANSMISSION OPERATION IN MULTICELL WIRELESS NETWORK 有权
    MULTICELL无线网络中合作MIMO传输操作的方法与设备

    公开(公告)号:US20110090945A1

    公开(公告)日:2011-04-21

    申请号:US12997209

    申请日:2009-09-03

    IPC分类号: H04L27/00 H04B3/46

    摘要: A method and apparatus of configuring a multi-cell precoding matrix for a multiple input multiple output (MIMO) operation in a wireless communication system in which a plurality of base stations participate in cooperative communication is provided. A multi-cell precoding matrix is configured using one or more single-cell precoding matrices, and wherein coefficients to be multiplied by the single-cell precoding matrices satisfy a condition in which the product between the multi-cell precoding matrix and a Hermitian matrix of the multi-cell precoding matrix is a unitary matrix. According to the embodiment of the present invention, it is not necessary for all base stations to perfectly know channel information. In addition, a feedback overhead is not high, and complexity is low.

    摘要翻译: 提供了在多个基站参与协作通信的无线通信系统中配置用于多输入多输出(MIMO)操作的多小区预编码矩阵的方法和装置。 使用一个或多个单小区预编码矩阵来配置多小区预编码矩阵,并且其中要乘以单小区预编码矩阵的系数满足条件,其中多小区预编码矩阵和厄密矩阵的乘积 多小区预编码矩阵是酉矩阵。 根据本发明的实施例,所有基站都不必完全知道信道信息。 另外,反馈开销不高,复杂度低。

    Method and apparatus for cooperative MIMO transmission operation in multicell wireless network
    6.
    发明授权
    Method and apparatus for cooperative MIMO transmission operation in multicell wireless network 有权
    多单元无线网络中协同MIMO传输操作的方法和装置

    公开(公告)号:US08477867B2

    公开(公告)日:2013-07-02

    申请号:US12997209

    申请日:2009-09-03

    IPC分类号: H04B7/02

    摘要: A method and apparatus of configuring a multi-cell precoding matrix for a multiple input multiple output (MIMO) operation in a wireless communication system in which a plurality of base stations participate in cooperative communication is provided. A multi-cell precoding matrix is configured using one or more single-cell precoding matrices, and wherein coefficients to be multiplied by the single-cell precoding matrices satisfy a condition in which the product between the multi-cell precoding matrix and a Hermitian matrix of the multi-cell precoding matrix is a unitary matrix. According to the embodiment of the present invention, it is not necessary for all base stations to perfectly know channel information. In addition, a feedback overhead is not high, and complexity is low.

    摘要翻译: 提供了在多个基站参与协作通信的无线通信系统中配置用于多输入多输出(MIMO)操作的多小区预编码矩阵的方法和装置。 使用一个或多个单小区预编码矩阵来配置多小区预编码矩阵,并且其中要乘以单小区预编码矩阵的系数满足条件,其中多小区预编码矩阵和厄密矩阵的乘积 多小区预编码矩阵是酉矩阵。 根据本发明的实施例,所有基站都不必完全知道信道信息。 另外,反馈开销不高,复杂度低。

    Method for transmitting channel information in multiple antenna system
    7.
    发明申请
    Method for transmitting channel information in multiple antenna system 有权
    用于在多天线系统中发送信道信息的方法

    公开(公告)号:US20090239473A1

    公开(公告)日:2009-09-24

    申请号:US12382363

    申请日:2009-03-13

    IPC分类号: H04B17/00

    CPC分类号: H04B7/0658 H04B17/24

    摘要: A method for transmitting channel information in a multi-antenna system, the method includes calculating channel quality information (CQI) with respect to each mode, comparing the CQI with respect to each mode to a threshold value with respect to each mode, and transmitting CQI with respect to a mode having higher CQI than the threshold value as channel information. Good performance can be achieved regardless of the number of users or an SNR of users.

    摘要翻译: 一种用于在多天线系统中发送信道信息的方法,所述方法包括:针对每个模式计算信道质量信息(CQI),将每个模式的CQI与每个模式进行比较,并且发送CQI 相对于具有比阈值更高的CQI的模式作为频道信息。 无论用户数量还是用户的SNR,都可以实现良好的性能。

    Method for transmitting channel information in multiple antenna system
    8.
    发明授权
    Method for transmitting channel information in multiple antenna system 有权
    用于在多天线系统中发送信道信息的方法

    公开(公告)号:US08165530B2

    公开(公告)日:2012-04-24

    申请号:US12382363

    申请日:2009-03-13

    IPC分类号: H04B17/00

    CPC分类号: H04B7/0658 H04B17/24

    摘要: A method for transmitting channel information in a multi-antenna system, the method includes calculating channel quality information (CQI) with respect to each mode, comparing the CQI with respect to each mode to a threshold value with respect to each mode, and transmitting CQI with respect to a mode having higher CQI than the threshold value as channel information. Good performance can be achieved regardless of the number of users or an SNR of users.

    摘要翻译: 一种用于在多天线系统中发送信道信息的方法,所述方法包括:针对每个模式计算信道质量信息(CQI),将每个模式的CQI与每个模式进行比较,并发送CQI 相对于具有比阈值更高的CQI的模式作为频道信息。 无论用户数量还是用户的SNR,都可以实现良好的性能。