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    • 21. 发明申请
    • METHOD FOR TRANSMITTING AND RECEIVING DOWNLINK REFERENCE SIGNALS IN A WIRELESS COMMUNICATION SYSTEM HAVING MULTIPLE ANTENNAS
    • 在具有多个天线的无线通信系统中发送和接收下行链路参考信号的方法
    • WO2010064854A3
    • 2010-07-29
    • PCT/KR2009007182
    • 2009-12-03
    • LG ELECTRONICS INCNOH YU JINYUN YOUNG WOOLEE DAE WONKIM BONG HOEKIM KI JUN
    • NOH YU JINYUN YOUNG WOOLEE DAE WONKIM BONG HOEKIM KI JUN
    • H04B7/04H04L27/26
    • H04B7/0617H04L5/0048H04W52/34
    • A method for transmitting and receiving downlink Reference Signals (RSs) in a wireless communication system using multiple antennas is disclosed. The downlink RS transmission method includes transmitting a first Orthogonal Frequency Division Multiplexing (OFDM) symbol in which RSs for a plurality of antenna port of first group are allocated in a predetermined order along a frequency axis, RSs for a plurality of antenna port of second group are allocated in a predetermined order along the frequency axis, and the RSs for the plurality of antenna port of first group are multiplexed in Code Division Multiplexing (CDM) with the RSs for the plurality of antenna port of second group by pairing each of the plurality of antenna port of first group with one of the plurality of antenna port of second group, and transmitting a second OFDM symbol in which the RSs for the plurality of antenna port of first group and the RSs for the plurality of antenna port of second group are positioned in an RS pattern being a frequency-domain shift of an RS pattern of the first OFDM symbol.
    • 公开了一种在使用多个天线的无线通信系统中发送和接收下行链路参考信号(RS)的方法。 下行链路RS发送方法包括:发送第一正交频分复用(OFDM)符号,其中第一组的多个天线端口的RS沿着频率轴以预定顺序被分配,第二组的多个天线端口的RS 以频率轴以预定顺序分配,并且通过将多个天线端口中的每一个与第二组天线端口中的每一个配对,将第一组多个天线端口的RS与第二组多个天线端口的RS以码分复用(CDM)进行复用 将第一组的天线端口与第二组的多个天线端口中的一个天线端口相连接,并且发送第二OFDM码元,其中,用于第一组的多个天线端口的RS和用于第二组的多个天线端口的RS是 位于作为第一OFDM符号的RS模式的频域偏移的RS模式中。