基于覆盖控制的交叉时隙干扰消除方法

A coverage adjustment based cross-slot cancellation approach

针对TD-SCDMA系统中交叉时隙干扰问题,提出通过控制交叉时隙的覆盖范围,降低干扰的方法。该方法根据网络中交叉时隙的分布,动态地调整交叉时隙的覆盖半径,在不抬高系统内干扰水平的条件下,充分利用了交叉时隙,提高了网络容量,并将网络拥塞率降低3到5个百分点。

An interference cancellation approach is proposed for dealing with the cross-slot interference issue in the TD-SCDMA system,which is based on the adaptive adjustment of the coverage area of the interfering base-station.This approach implements to adjust the coverage area of each Node-B during the cross-slots according to the distribution of cross-slot interference,meanwhile,it can make full use of cross-slots with the interference and further enhance the network capacity while it will not introduce more interference to the system.Also,simulation results show that the blocking probability of the system is reduced by about 3-5 percentage.