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Registered METHOD FOR GENERATING AND TRANSMITTING A REFERENCE SIGNAL FOR UPLINK DEMODULATION IN A CLUSTERED DFT-SPREAD OFDM TRANSMISSION SCHEME

Inventors
Jeong Byung Jang, Ko Young Jo, Bangwon Seo, Ahn Jae Young
Application No.
14031844 (2013.09.19)
Publication No.
20140016609 (2014.01.16)
Registration No.
9025684 (2015.05.05)
Country
UNITED STATES
Project Code
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
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Status Patent Country KIPRIS
Registered Method of generating and transmitting uplink demodulation reference signal in clustered DFT-spread-OFDM transmission scheme KOREA KIPRIS
Registered METHOD FOR GENERATING AND TRANSMITTING A REFERENCE SIGNAL FOR UPLINK DEMODULATION IN A CLUSTERED DFT-SPREAD OFDM TRANSMISSION SCHEME UNITED STATES