700MHz频段5G网络广播电视系统干扰问题研究  

Research on broadcast and TV system interference of 700MHz band in 5G network

作　　者：吕沛锦 陆赟 杨晓康 杨丹 尹以雁 郭正义 LYU Peijin;LU Yun;YANG Xiaokang;YANG Dan;YIN Yiyan;GUO Zhengyi(Yunnan Branch of China Mobile Communications Group Co.,Ltd.,Kunming 650228,China)

机构地区：[1]中国移动通信集团云南有限公司,云南昆明650228

出　　处：《电信科学》2022年第11期106-112,共7页Telecommunications Science

摘　　要：在700 MHz频段5G网络运营中存在广播电视系统的同频干扰风险,严重影响网络性能。从广播电视系统的频率配置出发,首先,探讨了700 MHz频段5G网络受广播电视系统干扰的原理;然后,分析广播电视系统干扰特点,并针对这些特点提出了基于频域信息的广播电视系统干扰识别算法;最后,对算法识别的准确性进行测试验证,实现通过干扰识别支撑干扰优化、规避的目标。There is a risk of co-channel interference from broadcast TV systems in the operation of 5G networks in the 700 MHz band,which seriously affects the network performance.Firstly,from the frequency configuration of broadcast TV system,the principle of interference by broadcast TV system in 5G network in 700 MHz band was discussed.Then,the interference characteristics of broadcast TV system were analyzed,and the interference identification algorithm of broadcast TV system based on frequency domain information was proposed for these characteristics.Finally,the accuracy of the algorithm identification was tested and verified to achieve the goal of interference optimization and avoidance through interference identification.

关 键 词：700MHz频段 同频干扰 干扰识别 

分 类 号：TN929.5[电子电信—通信与信息系统]