Mobile system for signal interference cancellaion of multi input multi output networt

다중입력 다중출력 네트워크에서 신호간섭을 제거할 수 있는 이동통신 시스템


본 발명은 다중사용자 MIMO 네트워크에서 신호간섭을 제거할 수 있는 이동통신 시스템에 관한 것으로, LTE 이동통신 시스템의 릴레이 노드가 AF(Amplify and Forward) 또는 DF(Decoded and Forward) 모드로 동작하며, THP(Thomilson Harashima Precoding) 또는 DPC(Dirty Paper Coding)로 프리코딩된 데이터 스트림을 수신하여 ZF(Zero Forcing), MMSE(Minimum Mean Square Error), SIC(Successive Interference Cancellation) 및 OSIC(Successive Interference Cancellation) 중 어느 하나의 검출 방법을 통해 신호를 검출하여 용이하게 신호간섭을 제거할 수 있는 이동통신 시스템을 제공할 수 있다.
The present invention relates to a mobile communication system capable of removing signal interference in a multiuser MIMO network and provides the mobile communication system capable of effectively removing signal interference by detecting the signal with one detection method among a zero forcing (ZF) method, a minimum mean square error (MMSE) method, a successive interference cancellation (SIC) method and an ordered successive interference cancellation (OSIC) method by receiving a data stream pre-coded with a thomilson harashima precoding (THP) or dirty paper coding (DPC), and the relay node of an LTE mobile communication system is operated as an amplify and forward (AF) or a decoded and forward (DF) mode. [Reference numerals] (10) Base station;(20) Relay node;(30) User terminal 1;(AA) Data stream;(BB) User terminal 2;(CC) User terminal K




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