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    • 9. 发明授权
    • Method and device for transmitting reference signal in wireless communication system
    • 用于在无线通信系统中发送参考信号的方法和装置
    • US09179464B2
    • 2015-11-03
    • US13642498
    • 2011-04-20
    • Min Seok NohMoon Il LeeSeung Hee HanJae Hoon Chung
    • Min Seok NohMoon Il LeeSeung Hee HanJae Hoon Chung
    • H04W72/04H04L5/00H04L27/26
    • H04W72/0466H04L5/0053H04L27/2611
    • A method and device for transmitting a reference signal in a wireless communication system is provided. A base station maps each demodulation reference signal (DMRS) of each of a plurality of layers into a first resource element (RE) set and a second RE set including four REs over four orthogonal frequency division multiplexing (OFDM) symbols within a subframe, allocates first orthogonal cover codes (OCCs) having a length of 4 to each DMRS mapped into the first RE set, allocates second OCCs having a length of 4 to each DMRS mapped into the second resource element set and transmits each DMRS mapped into the first RE set and the second RE set. The subframe includes two slots and each slot includes six OFDM symbols. The second OCC are formed by swapping positions of bits that constitute the first OCCs.
    • 提供了一种在无线通信系统中发送参考信号的方法和装置。 基站将多个层中的每一层的每个解调参考信号(DMRS)映射到第一资源单元(RE)集合中,并且在子帧内的四个正交频分复用(OFDM)符号上包括四个RE的第二RE集合分配 向映射到第一RE集合的每个DMRS的长度为4的第一正交覆盖码(OCC)向映射到第二资源元素集合的每个DMRS分配具有长度为4的第二OCC,并将映射到第一RE集合中的每个DMRS 和第二RE集。 子帧包括两个时隙,每个时隙包括六个OFDM符号。 第二个OCC通过交换构成第一个OCC的位的位置来形成。