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    • 7. 发明申请
    • MULTIPLE BEAMFORMING METHOD AND APPARATUS
    • 多波束形成方法和设备
    • WO2009035284A3
    • 2009-05-22
    • PCT/KR2008005397
    • 2008-09-11
    • KOREA ELECTRONICS TELECOMMSAMSUNG ELECTRONICS CO LTDCHOI IN-KYEONGKWON DONG SEUNGKANG JI WONLEE CHUNG YONG
    • CHOI IN-KYEONGKWON DONG SEUNGKANG JI WONLEE CHUNG YONG
    • H04B7/02
    • H04B7/0617
    • The present invention relates to a beamforming method and apparatus. A beamforming method for use in a base station for transmitting a plurality of streams through a plurality of antennas includes: receiving feedback information including information on a first codeword selected from a codebook including a plurality of codewords from each of a plurality of user terminals; grouping the plurality of user terminals by use of the feedback information from each user terminal; determining a user terminal to which a plurality of streams will be assigned of the plurality of user terminals, and determining a second codeword to be used for beamforming from the codebook by use of the feedback information of each user terminal and grouping information; and multiplying data to be transmitted through the plurality of steams by the second codeword and a unitary matrix.
    • 波束形成方法和装置技术领域本发明涉及波束形成方法和装置 一种用于在基站中用于通过多个天线发送多个流的波束成形方法,包括:接收包括关于从包括来自多个用户终端中的每一个的多个码字的码本中选择的第一码字的信息的反馈信息; 通过使用来自每个用户终端的反馈信息来分组多个用户终端; 确定多个用户终端将被分配多个流的用户终端,并且通过使用每个用户终端的反馈信息和分组信息来确定要从码本中用于波束成形的第二码字; 以及将要通过所述多个流传送的数据乘以所述第二码字和酉矩阵。