铁路下一代通信承载网技术演进路径探索  

Exploring the Technological Evolution Path of the Nextgeneration Railway Communication Bearer Network

作　　者：王国丽 魏祖顺 刘术伟 吴汀桥 WANG Guoli;WEI Zushun;LIU Shuwei;WU Tingqiao

机构地区：[1]中铁通信信号勘测设计院有限公司,北京100036 [2]中国铁路南宁局集团有限公司,南宁530022 [3]新华三技术有限公司,杭州310051

出　　处：《铁道通信信号》2024年第10期44-49,共6页Railway Signalling & Communication

摘　　要：为了全面评估IPv6技术在铁路行业中的潜在优势,首先对通信传输网、数据通信网和5G-R承载网的组网、业务需求、未来演进趋势进行分析;其次针对铁路下一代承载网对关键组网能力和业务承载能力的要求,分析切片分组网络(SPN)、IP无线接入网2.0版(IPRAN2.0)和分组增强型光传送网络(POTN)3种主流承载网技术的需求满足度,对比分析这3种技术在组网能力、性能指标、产业生态等方面的差异;着重分析IPv6段路由、网络切片、随流检测、应用感知网络等IPv6+特性在通信承载网中的应用需求,调查显示融合、灵活且松散耦合的产品和技术方案更适合铁路承载网的未来发展需求;最后分析使用IPRAN2.0技术建设下一代承载网过程中多网并存阶段的互通需求和解决方案。经分析论证得出结论:在IPv6网络方案中优选IPRAN2.0,待SPN标准及功能成熟后可选用SPN。The study is intended to make a comprehensive evaluation on the potential advantages of IPv6 technology in railway industry.Firstly,the networking,business requirements and future evolution trends are analyzed for communication transmission network,data communication network,and 5G-R bearer network.Secondly,three mainstream bearer network technologies,namely Sliced Packet Network(SPN),IP Radio Access Network Version 2.0(IPRAN 2.0)and Packet enhanced Optical Transmission(POTN),are analyzed in terms of their degrees of satisfying the requirements of key networking capability and service bearing capacity for the next generation railway bearer network,and they are compared with respect to the differences in networking capability,performance indexes and industrial ecology.Then,the study focuses on the analysis of the needs of applying IPv6+features such as IPv6 segment routing,network slicing,follow-up detection,and application-aware networking in the communication bearer network.The study shows that the integrated,flexible and loosely coupled products and technical solutions will adapt to the future development needs of railway bearer network better.Finally,the study analyzes the interoperation requirements and solutions in the multi-network coexistence stage in the process of building the next generation bearer network based on IPRAN 2.0 technology.According to the analysis and demonstration,it is concluded that IPRAN2.0 is preferred in IPv6 network scheme,and SPN can be selected after SPN standards and functions are mature.

关 键 词：承载网 IPv6+ 切片分组网络 IP无线接入网 分组增强型光传输网络 5G-R系统 

分 类 号：U285.5[交通运输工程—交通信息工程及控制]