针对LTE系统的小区间干扰问题,提出了基于信道探测符号(CSS)的小区间干扰抑制算法。该算法通过在LTE TDD的下行子帧中加入CSS来进行接入控制,避免对网络造成强烈干扰用户的接入,以保证整个网络维持在可接受的干扰状态。仿真结果表明,该算法能够在不影响中心用户吞吐量的情况下,显著提高小区边缘用户的吞吐量。
To solve the inter-cell interference problem in LTE systems,an inter-cell interference suppression algorithm is proposed based on the channel sounding symbols(CSS).By adding CSS in the LTE TDD downlink subframe to realize the access control,The algorithm can reject the access of the user who causes strong interference to the network so that the entire network can be kept in an acceptable interference status.The simulation results have shown that the algorithm can significantly increase the throughput of cell edge users with the least impact on the throughput of cell center users.