1.9 G FDD LTE基站抗干扰研究  

Research on anti-jamming of 1.9 G FDD LTE base station

作　　者：孙熔伟 张仿琪 郑国莘[1] Sun Rongwei;Zhang Fangqi;Zheng Guoxin(Key laboratory of Specialty Fiber Optics and Optical Access Networks,Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication,Shanghai Institute for Advanced Communication and Data Science,Shanghai University,Shanghai 200444,China;Tongji University,Maglev Transportation Engineering Technology Research Center,Shanghai 200444,China)

机构地区：[1]上海大学特种光纤与光接入网重点实验室特种光纤与先进通信国际合作联合实验室上海先进通信与数据科学研究院,上海200444 [2]同济大学磁浮交通工程技术研究中心,上海200444

出　　处：《电子测量技术》2019年第19期46-52,共7页Electronic Measurement Technology

基　　金：国家自然科学基金(61871261);上海市高校知识服务平台建设项目磁浮与轨道交通运行控制系统产学研合作开发中心资助

摘　　要：TD-LTE系统与FDD LTE基站频段相邻并处于同一区域而对FDD LTE产生邻频干扰,影响基站性能。本文通过确定性分析法和蒙特卡罗仿真两部分研究邻频干扰,计算了单链路干扰下基站所需的空间隔离度,并根据3GPP TR36.942和邻信道干扰功率比ACIR等模型,给出了基站间位置偏移量、功率控制参数集、带宽条件等不同参数引起的FDD LTE上行链路吞吐量损失的仿真结果,总结了典型场景下满足干扰门限所需的ACIR,由此提出了一些抑制干扰的措施,可以为实际FDD LTE基站部署提供参考。TD-LTE system is adjacent to the frequency band of FDD LTE base station and located in the same area,which produces adjacent frequency interference to FDD LTE and affects the performance of base station.In this paper,the adjacent frequency interference is studied by deterministic analysis and Monte Carlo simulation.The spatial isolation required by base station under single link interference is calculated.Based on the models of 3 GPP TR36.942 and adjacent channel interference power ratio ACIR,the simulation results of FDD LTE uplink throughput loss caused by different parameters such as position offset between base stations,power control parameter set and bandwidth condition are given.As a result,the ACIR required to satisfy the interference threshold in typical scenarios is summarized,and some interference suppression measures are proposed,which can provide reference for the actual deployment of FDD LTE base stations.

关 键 词：邻频干扰 LTE ACIR 蒙特卡罗 吞吐量 

分 类 号：TN929.5[电子电信—通信与信息系统]