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    • 52. 发明申请
    • METHOD FOR TRANSMITTING PILOT SYMBOLS IN DOWNLINK MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM
    • 用于在下行多路输入多输出系统中传输引导符号的方法
    • US20110274067A1
    • 2011-11-10
    • US13139719
    • 2009-12-03
    • Moon Il LeeJaho KooHyunsoo KoJae Hoon ChungBin Chul IhmYeong Hyeon Kwon
    • Moon Il LeeJaho KooHyunsoo KoJae Hoon ChungBin Chul IhmYeong Hyeon Kwon
    • H04W72/04
    • H04B7/0413
    • The present invention relates to a method for transmitting pilot signals in a downlink multiple-input multi-output (MIMO) system which supports a first user equipment (UE) for supporting an N number of transmitter antennas from among a total M number of transmitter antennas, and a second UE for supporting said M (wherein, M>N) number of transmitter antennas. The method comprises the steps of: enabling a base station to map pilot symbols in a resource block (RB) on a subframe for transmitting user-specific pilot symbols which can be recognized only by the second UE; and enabling the base station to transmit the subframe in which the pilot symbols are mapped. The cell-specific pilot symbols for transmitter antenna port 0 to N−1, which can be recognized by both the first UE and the second UE, and the user specific pilot symbols for transmitter antenna ports N to M−1, which can be recognized only by the second UE, are mapped in the allocated resource block.
    • 本发明涉及在下行链路多输入多输出(MIMO)系统中发送导频信号的方法,该系统支持从总共M个发射天线中支持N个发射机天线的第一用户设备(UE) 以及用于支持所述M(其中,M> N)个发射机天线的第二UE。 该方法包括以下步骤:使基站能够映射用于发送仅由第二UE识别的用户专用导频符号的子帧的资源块(RB)中的导频符号; 以及使基站能够发送其中映射有导频符号的子帧。 可由第一UE和第二UE识别的发射机天线端口0至N-1的小区特定导频符号和用于发射机天线端口N至M-1的用户特定导频符号,其可被识别 仅由第二UE被映射到所分配的资源块中。