5G干扰C波段卫星信号接收的成因分析及应对措施探究

Exploration of the causes and countermeasures of 5G interference on C-band satellite signal reception

随着我国无线通信技术的快速发展,技术水平不断提升,现阶段5G试验也在全国范围内不断推行,同时对5G技术的商用以及全面推广应用进行了规划和部署,可以预计未来几年内便可完成5G基站在中国各大城市及乡村的全面建设。通过现阶段试验发现,C波段卫星地球站下行接收频率与5G频率范围接近,从而存在着5G信号对其信息接收造成干扰的问题,主要体现在抬升卫星频段底噪,对接收信号的载波质量造成不利影响,加大了误码率,最终给图像、声音等质量造成影响,如图像出现马赛克、声音抖动、画面拉丝甚至出现花屏等。文章就现阶段C波段下行系统中故障和干扰源排查以及干扰成因进行分析,并对相应的解决对策进行探讨,为大多数情况下5G信号干扰现象有效消除提供参考。

With the rapid development of wireless communication technology,the technical level,the present stage 5G test also across the country on a large scale test,at the same time the commercial as well as the comprehensive promotion of 5G technology application for further planning and deployment,can be expected in the next two to three years and can complete 5G base stations in major cities in China and rural comprehensive construction.But through the study found that,at present stage c-band satellite earth station downlink receive frequency close to 5G frequency range,and there are 5G signal interference problems on receiving the information,mainly reflected in bottom up satellite frequency noise,adverse effects on the quality of received signal carrier,increasing the bit error rate,affecting the final image and sound quality.The image appears Mosaic,sound jitter,picture drawing and even flower screen.This paper analyzes the troubleshooting of faults and interference sources in the c-band downlink system at the present stage,as well as the causes of interference,and discusses the corresponding solutions,so as to provide reference for the effective elimination of 5G signal interference in most cases.