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    • 40. 发明公开
    • TRANSMISSION METHOD OF DOWNLINK REFERENCE SIGNAL AND APPARATUS THEREOF
    • VERFAHREN ZURÜBERTRAGUNGEINES DOWNLINK-REFERENZSIGNALS UND VORRICHTUNGDAFÜR
    • EP2418781A2
    • 2012-02-15
    • EP10761912.4
    • 2010-04-12
    • LG Electronics Inc.
    • KO, Hyun SooIHM, Bin ChulPARK, Sung HoLEE, Young SeobKANG, Seung HyunKOO, Ja HoKIM, Su NamLEE, Wook BongCHUN, Jin Young
    • H04B7/06H04J11/00H04W48/12
    • H04L5/0053
    • The present invention relates to a wireless communication system, and provides a method and an apparatus for transmitting a downlink reference signal in the wireless communication system. The method for enabling a base station to transmit the reference signal to a terminal using layers of 8 or less in accordance with one embodiment of the present invention comprises the steps of: transmitting data for the layers of 8 or less through a data domain of a downlink sub frame; and transmitting a reference signal for the layers of 8 or less on a fixed OFDM symbol of the downlink sub frame, wherein the reference signal is a DRS (Dedicated Reference Signal) which demodulates the data for the layers of 8 or less, and the reference signal for the layers of 8 or less is separated into 1st and 2nd groups, and reference signals of the 1st and 2nd groups can be multiplexed in a CDM (Code Division Multiplexing) method on one resource element, respectively.
    • 无线通信系统技术领域本发明涉及一种无线通信系统,提供了一种用于在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,使基站能够使用8或更小层的参考信号将参考信号发送到终端的方法包括以下步骤:通过数据域的数据域传送8或更小层的数据 下行子帧; 并且在下行链路子帧的固定OFDM符号上发射8或更小层的参考信号,其中参考信号是对8或更小层的数据进行解调的DRS(专用参考信号),参考信号 8或更小层的信号被分成第1组和第2组,第一组和第二组的参考信号可以分别以一个资源元素的CDM(码分复用)方式多路复用。