面向铁路5G移动通信的SPN与OTN网络融合方案研究

Research on Integration Scheme of SPN and OTN Network for 5G Mobile Communication for Railway

铁路新基建关于5G-R核心网及数据中心的建设规划,对承载网的系统容量、可靠性、业务发展余量、网络性能等提出更高要求,发展新的承载技术势在必行。从业务适配、网络切片、管控系统等方面,对SPN、增强型IP RAN及M-OTN 3种承载网技术分析比较,推荐采用SPN作为铁路5G系统的承载技术,阐述了铁路5G承载网组网需求及架构,并针对不同应用场景接入层提出SPN技术方案。

The construction planning of the data center and 5G-R core network of new railway infrastructure renders higher requirements on the system capacity,reliability,business development margin,network performance of the bearer network.So,it is imperative to develop new bearer network technologies.The three bearer network technologies of SPN,IP RAN,and M-OTN are analyzed and compared from the aspects of service adaptation,network slicing,and administration system.It is recommended that SPN be adopted as the bearer network of 5G mobile communication in the future.Furthermore,the networking requirements and the architecture of the bearer network of 5G mobile communications for railway are expounded and the SPN technical solutions of the access layer are tailored for different application scenarios.