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    • 7. 发明申请
    • METHOD FOR TRANSMITTING PILOT SYMBOLS IN DOWNLINK MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM
    • 在下行链路多输入多输出系统中传输导频符号的方法
    • WO2010071311A2
    • 2010-06-24
    • PCT/KR2009007190
    • 2009-12-03
    • LG ELECTRONICS INCLEE MOON ILKOO JAHOKO HYUNSOOCHUNG JAE HOONIHM BIN CHULKWON YEONG HYEON
    • LEE MOON ILKOO JAHOKO HYUNSOOCHUNG JAE HOONIHM BIN CHULKWON YEONG HYEON
    • H04B7/04H04B1/76
    • 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 ports 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.
    • 本发明涉及一种用于在下行链路多输入多输出(MIMO)系统中发送导频信号的方法,该系统支持用于支持总共M个发射机天线中的N个发射机天线的第一用户设备(UE) 以及用于支持所述M个(其中,M> N)个发射机天线的第二UE。 该方法包括以下步骤:使基站能够在用于发送仅能由第二UE识别的用户专用导频符号的子帧上的资源块(RB)中映射导频符号; 并且使基站能够发送导频符号被映射的子帧。 可以由第一UE和第二UE两者识别的用于发射器天线端口0至N-1的小区特定导频符号以及用于发射器天线端口N至M-1的用户专用导频符号可以是 仅被第二UE识别的信息被映射到分配的资源块中。