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    • 10. 发明授权
    • 다중 안테나 시스템의 송신 장치 및 방법과, 수신 장치 및방법
    • 다중안테나시스템의송신장치및방법과,수신장치및방
    • KR100659725B1
    • 2006-12-19
    • KR1020050120778
    • 2005-12-09
    • 한국전자통신연구원연세대학교 산학협력단
    • 권동승송영석이승준오종의이충용신명철
    • H04B7/02
    • A transmitting apparatus/method and a receiving apparatus/method in a multi-antenna system are provided to select the number of data streams adaptively to instantaneous changes of a channel, thereby preventing insufficiency of ranks, thereby considerably improving the bit error performance of a quantizing preprocessor. A transmitting apparatus(110) in a multi-antenna system comprises the followings: plural quantizing codebooks(113) which respectively correspond to each of data streams, and are formed by quantizing channel information between a transmitting antenna and a receiving antenna; a modulator(111) for modulating at least one data stream on the basis of an index of a stream mode included in information fed back from a receiving apparatus(120); and a quantizing preprocessor(112) which preprocesses the modulated data stream on the basis of a codeword index, selected from the quantizing codebooks(113) of the data stream corresponding to the stream mode of the index and included in information fed back from the receiving apparatus(120), and transmits the preprocessed data stream to the receiving apparatus(120).
    • 提供了多天线系统中的发送设备/方法和接收设备/方法,以自适应地选择数据流的数量以适应信道的瞬时变化,从而防止了秩的不足,由此显着地提高了量化的误码性能 预处理。 多天线系统中的发送设备(110)包括:多个量化码本(113),分别对应于每个数据流,并且通过量化发送天线和接收天线之间的信道信息而形成; 调制器(111),用于基于包括在从接收装置(120)反馈的信息中的流模式的索引来调制至少一个数据流; 以及量化预处理器(112),其根据码字索引预先处理经调制的数据流,所述量化预处理器从对应于索引的流模式的数据流的量化码本(113)中选择并且包括在从接收器反馈的信息中 装置(120),并将预处理的数据流发送到接收装置(120)。