TD-LTE室分建设中的干扰抑制方法  

Interference suppression method in TD-LTE indoor distribution

作　　者：杨志华 韩晓亮 白巍 高超 YANG Zhi-hua;HAN Xiao-liang;BAI Wei;GAO Chao(China Mobile Group Design Institute Co.,Ltd.Hebei Branch,Shijiazhuang 050021,China)

机构地区：[1]中国移动通信集团设计院有限公司河北分公司,石家庄050021

出　　处：《电信工程技术与标准化》2019年第1期6-10,共5页Telecom Engineering Technics and Standardization

摘　　要：TD-LTE室内分布系统建设中遇到的干扰问题可分为系统间干扰和系统内干扰两部分。系统间干扰主要包括杂散干扰、互调干扰、阻塞干扰3类,在室分系统中3种干扰会同时影响网络性能;系统内干扰主要是采用OFDM技术带来的多邻区同频干扰。本文主要对TD-LTE室内分布系统建设中遇到的干扰问题进行分析并提出了初步的解决方案。The interference problems encountered in the construction of TD-LTE indoor distribution system can be divided into two parts:inter-system interference and intra-system interference.The inter-system interference mainly includes three kinds of interferences:spurious interference,intermodulation interference and blocking interference.In the indoor sub-system,three kinds of interference will affect the network performance at the same time.The intra-system interference mainly uses the multineighbor region co-channel interference brought by OFDM technology.The article mainly analyzes the interference problems encountered in the construction of TD-LTE indoor distribution system and proposes a preliminary solution.

关 键 词：TD-LTE分布系统 系统间干扰 OFDM 同频干扰 

分 类 号：TN929.5[电子电信—通信与信息系统]