摘要
2100 MHz频段电波传播特性良好,可申请作为我国铁路5G专网频率。但该频段与天通卫星通信系统、中国联通LTE系统的频率相邻,存在系统间干扰风险,可能影响铁路通信系统的可靠性。对2100 MHz频段铁路5G专网频率的电磁兼容特性进行研究,计算出与中国联通LTE系统所需的空间隔离距离,并提出在铁路基站加装滤波器、铁路基站与中国联通基站临近部署等干扰控制建议。
With good radio wave propagation characteristics,2100 MHz band can be used as the band for 5G private network for China railways.However,the band is adjacent to the frequencies of Tiantong Satellite Communication System and China Unicom LTE System.Therefore,the potential risk of inter-system interference may affect the reliability of railway communication system.The electromagnetic compatibility characteristics of railway 5G private network frequency in 2100 MHz band were studied,the required spatial isolation distance with China Unicom LTE system was calculated,and some interference control suggestions were put forward,such as the installation of filters in railway base stations and adjacent deployment of railway base stations and Unicom base stations.
作者
蔺伟
李毅
姜博
董根才
LIN Wei;LI Yi;JIANG Bo;DONG Gencai(Signal&Communication Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China)
出处
《中国铁路》
2020年第11期16-22,共7页
China Railway
基金
中国铁道科学研究院集团有限公司科技研究开发计划项目(2020YJ016)。
关键词
铁路5G专网
2100
MHz频段
电磁兼容
空间隔离
临近部署
LTE
卫星通信
railway 5G private network
2100 MHz band
electromagnetic compatibility
spatial isolation
adjacent deployment
LTE
satellite communication
