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

作　　者：薛富国[1,2] 李建东[1] 庞继勇[1] 杨春刚[1] 

机构地区：[1]西安电子科技大学综合业务网理论及关键技术国家重点实验室,陕西西安710071 [2]中国移动通信集团陕西有限公司,陕西西安710075

出　　处：《电路与系统学报》2010年第4期61-64,100,共5页Journal of Circuits and Systems

基　　金：国家杰出青年科学基金(60725105;60571246);国家自然科学基金重大项目(60496316);国家自然科学基金(60702057);863计划课题(2007AA01Z288);高等学校创新引智计划(111Project)(B08038);973计划课题(2009CB320404)

摘　　要：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.

关 键 词：交叉时隙干扰 动态信道分配 TD-SCDMA 

分 类 号：TN929.5[电子电信—通信与信息系统]