수신채널정보를 이용하는 다중 송수신 노드를 가지는 무선 시스템에서의 간섭 제어 방법
- 9185599 (2015.11.10)
09MR1700, 4세대 이동통신을 위한 적응 무선접속 및 전송 기술개발,
- Disclosed is method for controlling interference in a wireless system having multiple sending and receiving nodes. In the method for controlling interference in a wireless system having multiple sending and receiving nodes, a plurality of receiving nodes share each other's channel information, each of the receiving nodes uses the shared channel information to calculate a precoding matrix which is fed back to the sending nodes, and each of the sending nodes uses each of the precoding matrices received as feedback to transmit a send signal to the receiving nodes, thereby controlling interference. Complete interference alignment can be achieved even by just sharing channel information between receiving nodes, and the invention can be employed not only for inter-cell interference but also for intra-cell interference environments.
- KSP 제안 키워드
- Interference Alignment(IA), Shared channel, inter-cell, inter-cell interference(ICI), intra-cell, precoding matrix, wireless system