5G-R系统核心网5GC组网技术和部署方案研究

Research on 5GC Networking Technology and Deployment Scheme of 5G-R System Core Network

5GC是5G-R系统核心网的重要网元,是实现5G-R系统承载无线调度通信、列车运行控制、行车指挥、运营维护信息传送等多种应用业务的关键。为了保证各种应用业务的实时性、可靠性、可用性和可维护性,基于国际3GPP规范,分析了5GC架构和网元功能;结合铁路业务需求、维护需求和应用场景,梳理归纳了5GC组网原则;研究各铁路局集团公司5GC规划部署方案,提出了5GC云平台架构和建设方式等建议;结合5GC网元功能和组网技术,提出了5GC各网络功能容灾备份组网方案建议,AMF/SMF/UPF等网络功能可采用负荷分担方式,其他网络功能宜采用主备工作方式。

5GC is an important network element of the Core Network,and it is the key to realize 5GR system carrying wireless dispatching communication,train operation control,train operation command,operation and maintenance information transmission and other applications.In order to ensure the real-time,reliability,availability and maintainability of various application services,the 5GC architecture and the functions of network elements are analyzed based on the international 3GPP specifications.Combined with railway business requirements,maintenance requirements and application scenarios,the 5GC networking principles are summarized.Studying the 5GC planning and deployment scheme for the railway bureau group companies,the suggestions on the 5GC cloud platform architecture and construction methods are put forward.AMF/SMF/UPF etc.can adopt the load sharing method,while other network functions should adopt the active standby mode.