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    POWER CONTROLLING METHOD AND CORRESPONDING BASE STATION
    2.
    发明公开
    POWER CONTROLLING METHOD AND CORRESPONDING BASE STATION 有权
    功率控制方法和相关基站

    公开(公告)号：EP2173041A4

    公开(公告)日：2013-01-23

    申请号：EP07785157

    申请日：2007-07-23

    申请人： ALCATEL LUCENT

    发明人： WU KEYING

    IPC分类号： H04B7/26 ,  H04W52/42

    CPC分类号： H04W52/42 ,  H04B7/0452 ,  H04W52/146

    摘要： A power controlling method and corresponding base station for controlling the transmission power of each user terminal are disclosed, in which, each user terminal is paired into virtual MIMO transmission. In the solution, first, determining the transmission power of each user terminal that makes the sum of the transmission power of each user terminal minimum under the case that the specific index for each user terminal meets a required threshold value; then, feed backing the determined transmission power of each user terminal to each user terminal. Compared with the prior art, the solution can achieve a preferable power efficiency.

    METHOD AND DEVICE FOR CONSTRUCTING CODEBOOK, METHOD, DEVICE AND SYSTEM FOR PRECODING
    4.
    发明公开
    METHOD AND DEVICE FOR CONSTRUCTING CODEBOOK, METHOD, DEVICE AND SYSTEM FOR PRECODING 审中-公开
    方法和VORRICHTUG用于创建预编码的码本，方法，设备和系统

    公开(公告)号：EP2469747A4

    公开(公告)日：2013-01-23

    申请号：EP09848367

    申请日：2009-08-18

    申请人： ALCATEL LUCENT

    发明人： YANG HONGWEI ,  LI DONG ,  WU KEYING

    IPC分类号： H04L25/03 ,  H04B7/04

    CPC分类号： H04B7/0473 ,  H04B7/0413 ,  H04L25/03898 ,  H04L25/03961

    摘要： The present invention discloses a method and apparatus for constructing a codebook. The method comprises: receiving grouping information on a plurality of transmit antennas of a base station; obtaining a channel model for a channel between a mobile terminal and the base station; and determining an optimal precoding matrix corresponding to each antenna group according to the grouping information and the channel model, so as to construct a codebook used for precoding. The present invention further discloses a method and apparatus for selecting a precoding matrix, as well as a method, apparatus and system for precoding.