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    • 32. 发明申请
    • METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS MULTIPLE ANTENNAS
    • 用于在支持多个天线的无线通信系统中发送下行链路参考信号的方法和装置
    • US20140198871A1
    • 2014-07-17
    • US14218338
    • 2014-03-18
    • LG ELECTRONICS INC.
    • Hyun Soo KOSeung Hee HANJae Hoon CHUNGBin Chul IHMMoon Il LEE
    • H04L5/00H04B7/04
    • H04L5/0048H04B7/0413H04B7/0626H04B7/216H04J13/004H04L5/0016H04L5/0023H04L5/0051H04L5/0053H04L5/0057H04L5/0094H04L25/0224H04L27/2601H04L27/2613H04W52/325H04W72/02H04W72/04H04W72/085
    • The present invention relates to a wireless communication system, and in particular, to a method and an apparatus for transmitting a downlink reference signal in a wireless communication system that supports multiple antennas. The method for transmitting a reference signal for a maximum of eight antenna ports according to one embodiment of the present invention comprises: in a base station, mapping part of a common reference signal for a maximum of four antenna ports into a downlink subframe that includes a 1st slot and a 2nd slot; in the base station, mapping a channel status information reference signal for the maximum of eight antenna ports into the downlink subframe, according to a preset pattern; and in the base station, transmitting the downlink subframe into which the common reference signal and the channel status information reference signal have been mapped, wherein the preset pattern defines the channel status information reference signal for the maximum of eight antenna ports to be mapped onto two OFDM symbols of the data region in the downlink subframe, and wherein part of the common reference signal for the maximum of four antenna ports is limited to the common reference signal for a maximum of two antenna ports.
    • 无线通信系统技术领域本发明涉及一种无线通信系统,特别是涉及在支持多个天线的无线通信系统中发送下行链路参考信号的方法和装置。 根据本发明的一个实施例的用于发送最多八个天线端口的参考信号的方法包括:在基站中,将最多四个天线端口的公共参考信号的一部分映射到包括 第一槽和第二槽; 在基站中,根据预设模式将用于最多八个天线端口的信道状态信息参考信号映射到下行链路子帧中; 并且在基站中,发送已经映射了公共参考信号和信道状态信息参考信号的下行链路子帧,其中,预设模式定义了要映射到两个的最多八个天线端口的信道状态信息参考信号 下行链路子帧中的数据区域的OFDM符号,并且其中用于最多四个天线端口的公共参考信号的一部分被限制为用于最多两个天线端口的公共参考信号。