Invention Grant
US08705644B2 Method for generating and transmitting a reference signal for uplink demodulation in a clustered DFT-spread OFDM transmission scheme
有权
用于在聚集的DFT扩展OFDM传输方案中生成和发送用于上行链路解调的参考信号的方法
- Patent Title: Method for generating and transmitting a reference signal for uplink demodulation in a clustered DFT-spread OFDM transmission scheme
- Patent Title (中): 用于在聚集的DFT扩展OFDM传输方案中生成和发送用于上行链路解调的参考信号的方法
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Application No.: US13387016Application Date: 2010-09-17
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Publication No.: US08705644B2Publication Date: 2014-04-22
- Inventor: Byung Jang Jeong , Young Jo Ko , Bangwon Seo , Jae Young Ahn
- Applicant: Byung Jang Jeong , Young Jo Ko , Bangwon Seo , Jae Young Ahn
- Applicant Address: KR Daejeon
- Assignee: Electronics and Telecommunications Research Institute
- Current Assignee: Electronics and Telecommunications Research Institute
- Current Assignee Address: KR Daejeon
- Agency: Nelson Mullins Riley & Scarborough LLP
- Priority: KR10-2009-0088521 20090918
- International Application: PCT/KR2010/006452 WO 20100917
- International Announcement: WO2011/034392 WO 20110324
- Main IPC: H04L27/28
- IPC: H04L27/28
Abstract:
Disclosed is a method for generating and transmitting a reference signal in a clustered DFT-spread OFDM transmission scheme. A method for generating and transmitting a DM-RS in a clustered DFT-spread-OFDM scheme comprises: a step of generating DM-RS sequences corresponding to the number of clusters allocated for an uplink transmission; and a step of mapping the generated DM-RS sequences to the relevant DM-RS symbol positions for each cluster. Accordingly, the method for generating and transmitting a reference signal according to the present invention, in which DM-RS sequences are allocated and transmitted on a cluster basis, uses a complete DM-RS sequence for each cluster, and therefore inter-cell interference can be weakened, and problems which might occur when applied to a multi-user MIMO (MU-MIMO) scheme can be solved.
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