动态TDD LTE系统中基于小区分簇的干扰协调方案研究

摘要

LTE系统中引入动态TDD技术，一方面通过动态调整上下行时隙配比可以缓解网络拥塞的状况并且提高系统资源利用率，另一方面却引入了基站之间不同步的串行干扰。基于小区分簇的干扰协调方案成为消除配置动态 TDD 技术的LTE系统中串行干扰的有效手段。文章首先介绍动态TDD技术，然后对现有的小区分簇方案进行介绍，继而对基于路径损耗的小区分簇算法性能进行仿真。%The introduction of dynamic TDD tech-nology in LTE System reduce network congestion and improves system resource utilization by traffic adaptation, however it also brings in unsynchronized successive interference among base stations. A cell clustering method for interference mitigation reduces successive interference in LTE system with traffic adaptation effectively. This paper describes the dy-namic TDD technology, followed by the introduction of existing cell clustering scheme, and then provides the simulation results of the cell clustering method based on path loss.