5G基站对C波段卫星信号干扰的分析与应对措施

Analysis and Countermeasures of Interference of 5G Base Station to C-Band Satellite Signal

自2018年中国联通在贵阳开通首个5G基站以来,到2021年底,中国移动、中国联通、中国电信三家运营商已实现了贵阳市各区(市、县)及乡镇的5G网络连续覆盖,为用户带来高速上网体验的同时,也给卫星地球站C波段下行信号造成干扰,影响了发射机的安全播出。对此,本文对5G信号造成干扰的原因及应对措施进行分析探讨,以供同行参考。

Since China Unicom opened its first 5G base station in Guiyang in 2018, by the end of 2021, China Mobile, China Unicom and China Telecom have achieved continuous 5G network coverage in all districts(cities, counties) and towns of Guiyang, which not only brings users high-speed Internet access experience, but also interferes with the C-band downlink signal of the satellite earth station and affects the safe broadcasting of the transmitter. In this regard, this paper analyzes and discusses the causes of 5G signal interference and countermeasures, so as to provide reference for peers.