Registered
METHOD FOR GENERATING AND TRANSMITTING A REFERENCE SIGNAL FOR UPLINK DEMODULATION IN A CLUSTERED DFT-SPREAD OFDM TRANSMISSION SCHEME
- Inventors
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Jeong Byung Jang, Ko Young Jo, Bangwon Seo, Ahn Jae Young
- Application No.
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14031844 (2013.09.19)
- Publication No.
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20140016609 (2014.01.16)
- Registration No.
- 9025684 (2015.05.05)
- Country
- UNITED STATES
- Project Code
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09MR1700, Development of Adaptive Radio Access and Transmission Technologies for 4th Generation Mobile Communications,
Kim Yeongjin
- 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.
- KSP Keywords
- DFT-spread, Multiuser Multiple-Input Multiple-Output(MU-MIMO), Number of clusters, OFDM transmission, RS sequence, Reference signal, Spread OFDM, Transmission scheme, inter-cell, inter-cell interference(ICI), multi-user, multiuser MIMO, uplink transmission
- Family
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