发明授权
US08964623B2 Transmission method of downlink reference signal and apparatus thereof
有权
下行链路参考信号的传输方法及其装置
- 专利标题: Transmission method of downlink reference signal and apparatus thereof
- 专利标题(中): 下行链路参考信号的传输方法及其装置
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申请号: US13263334申请日: 2010-04-12
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公开(公告)号: US08964623B2公开(公告)日: 2015-02-24
- 发明人: Hyun Soo Ko , Bin Chul Ihm , Sung Ho Park , Young Seob Lee , Seung Hyun Kang , Ja Ho Koo , Su Nam Kim , Wook Bong Lee , Jin Young Chun
- 申请人: Hyun Soo Ko , Bin Chul Ihm , Sung Ho Park , Young Seob Lee , Seung Hyun Kang , Ja Ho Koo , Su Nam Kim , Wook Bong Lee , Jin Young Chun
- 申请人地址: KR Seoul
- 专利权人: LG Electronics Inc.
- 当前专利权人: LG Electronics Inc.
- 当前专利权人地址: KR Seoul
- 代理机构: Lee, Hong, Degerman, Kang & Waimey
- 优先权: KR10-2010-0032590 20100409; KR10-2010-0032591 20100409; KR10-2010-0032592 20100409; KR10-2010-0032593 20100409; KR10-2010-0032594 20100409
- 国际申请: PCT/KR2010/002241 WO 20100412
- 国际公布: WO2010/117251 WO 20101014
- 主分类号: H04W4/00
- IPC分类号: H04W4/00 ; H04L5/00
摘要:
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.
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