클러스터드 디에프티 스프레드 오에피디엠 전송에 있어서 레퍼런스 시그널의 생성 및 전송방법
정병장, 서방원, 안재영, 고영조
- 9025684 (2015.05.05)
09MR1700, 4세대 이동통신을 위한 적응 무선접속 및 전송 기술개발,
- 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 제안 키워드
- 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