Data transmission method and apparatus in multiple antenna system
    113.
    发明授权
    Data transmission method and apparatus in multiple antenna system 有权
    多天线系统中的数据传输方法和装置

    公开(公告)号:US08325846B2

    公开(公告)日:2012-12-04

    申请号:US13201214

    申请日:2010-02-16

    IPC分类号: H04B7/02 H04L1/02

    CPC分类号: H04B7/0639

    摘要: A data transmission method in a multiple antenna system is provided. The method includes: defining a codebook including at least one precoding matrix composed of a plurality of rows and columns, wherein the codebook is at least one of a first type in which all elements of the precoding matrix are non-zero elements, a second type in which any one column of the precoding matrix includes non-zero element and the remaining columns include at least one zero element, and a third type in which all columns of the precoding matrix include at least one zero element; precoding an input symbol by using the defined codebook; and transmitting the precoded symbol.

    摘要翻译: 提供了一种多天线系统中的数据传输方法。 该方法包括:定义包括由多个行和列组成的至少一个预编码矩阵的码本,其中码本是预编码矩阵的所有元素都是非零元素的第一类型中的至少一个,第二类型 其中预编码矩阵的任何一列包括非零元素,其余列包括至少一个零元素,以及第三类型,其中预编码矩阵的所有列包括至少一个零元素; 通过使用定义的码本对输入符号进行预编码; 并传送预编码符号。

    Method of coordinating precoding matrixes in a wireless communication system
    118.
    发明授权
    Method of coordinating precoding matrixes in a wireless communication system 失效
    在无线通信系统中协调预编码矩阵的方法

    公开(公告)号:US08649344B2

    公开(公告)日:2014-02-11

    申请号:US13142545

    申请日:2009-11-24

    IPC分类号: H04W4/00

    摘要: A method of coordinating precoding matrixes in a wireless communication system is disclosed. A method of coordinating precoding matrixes by a base station in a wireless communication system comprises receiving precoding matrix index information from neighbor cells; and generating PMI allocation for each resource according to the precoding matrix index information wherein at least one PMI is restricted or recommended in part of resource in the PMI allocation for each resource.

    摘要翻译: 公开了一种在无线通信系统中协调预编码矩阵的方法。 一种在无线通信系统中由基站协调预编码矩阵的方法包括从相邻小区接收预编码矩阵索引信息; 以及根据预编码矩阵索引信息为每个资源生成PMI分配,其中在每个资源的PMI分配中资源的一部分中至少一个PMI被限制或推荐。

    Method of transmitting channel quality indicator
    120.
    发明授权
    Method of transmitting channel quality indicator 失效
    发送信道质量指标的方法

    公开(公告)号:US08553614B2

    公开(公告)日:2013-10-08

    申请号:US12448677

    申请日:2008-03-28

    IPC分类号: H04W4/20

    摘要: A method of transmitting channel quality indicator (CQI) includes obtaining CQI of each, of the plurality of sub-bands, selecting a first sub-band having the best CQI of the plurality of sub-bands, transmitting the best CQI of the first sub-band at a first transmission cycle and transmitting a difference value between the best CQI of the first sub-band and a CQI of the first sub-band at a second transmission cycle. Signalling overhead due to CQI transmission can be reduced.

    摘要翻译: 发送信道质量指示符(CQI)的方法包括获得多个子带中的每一个的CQI,选择具有多个子带中最佳CQI的第一子带,发送第一子带的最佳CQI 在第一传输周期发送第一子带的最佳CQI和第一子带的CQI之间的差值,并以第二传输周期发送。 可以减少由CQI传输引起的信令开销。