摘要
北京轨道交通新建线路均已采用LTE-M系统综合承载数据及集群业务,在两线共用场段的情况下,不可避免存在频率干扰问题。为保障LTE-M系统的整体可靠性,提出车辆段业务场景并通过对LTE-M系统在共用场段场景下的频率运用分析,总结共用场段1.8G频率运用原则,提高车地通信可靠性,为共用场段LTE-M系统频率规划提供借鉴。
All the new rail transit lines in Beijing have used the LTE-M system for comprehensive bearing of data and cluster services.In the case where the two lines use a shared yard section,frequency interference becomes inevitable.To ensure the overall reliability of the LTE-M system,this paper describes the service scenarios at the rolling stock depot and analyzes the frequency use of the LTE-M system in scenario of shared yard section.On this basis,it summarizes the principles of 1.8 G frequency use for shared yard section,which improves the reliability of vehicle-ground communication,and provides reference for the frequency planning of the LTE-M system for shared yard sections.
作者
李鸣
Li Ming(CRSC Research&Design Institute Group Co.,Ltd.,Beijing 100070,China)
出处
《铁路通信信号工程技术》
2024年第5期115-121,共7页
Railway Signalling & Communication Engineering
