5G NR地铁专网综合承载方案探讨

Discussion on comprehensive bearing scheme of metro private network based on 5G New Radio

为应对地铁无线专网多网并存,单个网络无法综合承载的情况,分析了地铁应用系统的通信需求和地铁专网综合承载的现状,提出了5G新空口(5G NR,5G New Radio)地铁专网综合承载方案,重点研究了基于5G NR网络切片的业务适配和网络隔离方案。为满足地铁复杂的应用需求和安全隔离要求,提出了5G NR网络切片的扩展即双层网络切片方法。

To cope with the situation that multiple networks coexist in the metro wireless private network,and a single network cannot be comprehensively carried,this paper analyzed the communication requirements of the metro application system and the current situation of the comprehensive carrying of the metro private network,put forward the comprehensive carrying scheme of the 5G New Radio(5G NR)metro private network,and focused on the service adaptation and network isolation scheme based on 5G NR network slice.For meeting the complex application requirements and security isolation requirements of metro,the paper proposed an extended method of 5G NR network slicing,that was,two-layer network slicing method.