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    • 5. 发明申请
    • APPARATUS AND METHOD FOR CALIBRATION FOR COOPERATIVE MULTIPLE INPUT MULTIPLE OUTPUT IN A WIRELESS COMMUNICATION SYSTEM
    • 无线通信系统中合作多输入多输出校准的装置和方法
    • US20100303015A1
    • 2010-12-02
    • US12791573
    • 2010-06-01
    • Eun-Seok KOKeun-Chul HWANGEun-Yong KIM
    • Eun-Seok KOKeun-Chul HWANGEun-Yong KIM
    • H04W88/08H04L27/28
    • H04B7/024H04B7/0417H04W52/46
    • A method and apparatus for multi-cell calibration in a wireless communication system supporting cooperative Multiple Input Multiple Output (MIMO) are provided. Operations of a Base Station (BS) according to the method include transmitting a first message indicating a start of multi-cell sounding calibration to a reference Mobile Station (MS); estimating an uplink channel matrix of the reference MS using pilot symbols received from the reference MS; transmitting pilot symbols for enabling the reference MS to estimate a downlink channel matrix; when receiving downlink channel information of cooperative BSs from the reference MS, transmitting second messages comprising the downlink channel information to the cooperative BSs; and determining a multi-cell calibration matrix using the uplink channel matrix and the downlink channel information received from the reference MS.
    • 提供了一种支持协作多输入多输出(MIMO)的无线通信系统中多小区校准的方法和装置。 根据该方法的基站(BS)的操作包括向参考移动站(MS)发送指示多小区发声校准开始的第一消息; 使用从所述参考MS接收的导频符号来估计所述参考MS的上行链路信道矩阵; 发送用于使所述参考MS能够估计下行链路信道矩阵的导频符号; 当从参考MS接收到协作BS的下行链路信道信息时,向合作BS发送包括下行链路信道信息的第二消息; 以及使用从所述参考MS接收的所述上行链路信道矩阵和所述下行链路信道信息来确定多小区校准矩阵。