面向铁路5G-R和GSM-R系统的SPN承载方案研究与试验  

Research and Testing of SPN Bearer Solution for Railway 5G-R and GSM-R Systems

作　　者：吴军[1] 胡锴[2] 李恒友[2] 刘清涛[3] 王芳 李春铎 滕蕾 WU Jun;HU Kai;LI Hengyou;LIU Qingtao;WANG Fang;LI Chunduo;TENG Lei(Huawei Technologies Co.,Ltd.,Shenzhen Guangdong 518057,China;Huawei Technologies Co.,Ltd.,Beijing 100070,China;Beijing Railway Communication Technology Center,Beijing 100038,China;Signal&Communication Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China)

机构地区：[1]华为技术有限公司,广东深圳518057 [2]华为技术有限公司,北京100070 [3]北京铁路通信技术中心,北京100038 [4]中国铁道科学研究院集团有限公司通信信号研究所,北京100081

出　　处：《中国铁路》2024年第8期9-18,共10页China Railway

基　　金：中国国家铁路集团有限公司科技研究开发计划项目(N2023G053)。

摘　　要：基于铁路5G-R、GSM-R系统业务场景和全球商用部署的SPN创新承载技术,面向铁路5G-R系统特殊应用,建立小颗粒硬管道业务模型和L3VPN到边缘的分组业务模型,提出采用SPN双平面组网并综合承载现网GSM-R业务的E1CBROver小颗粒硬管道方案。SPN综合承载方案满足5G-R、GSM-R系统铁路行车控制类业务高可靠、高安全的硬隔离承载需求,以及5G-R系统大带宽视频数据业务灵活调度、智能运维的演进需求。提出的方案已完成基于SPN的5G-R、GSM-R基站和核心网端到端功能及可靠性试验验证,试验结果指标优于标准要求,证明面向铁路5G-R、GSM-R系统的SPN综合承载方案安全可行。Building on the service scenarios of railway 5G-R and GSM-R systems,and the globally commercially deployed SPN innovative bearer technology,this paper developed a small-granularity hard pipe service model and an L3VPN to edge packet service model for the specialized applications of the railway 5G-R system.Additionally,this paper proposed an E1 CBR Over small-granularity hard pipe solution.This approach leverages SPN dual-plane networking,effectively integrating and bearing the GSM-R services from the existing network.This SPN integration and bearing solution satisfies the high-reliability and high-security hard isolation bearer requirements for railway traffic control services within the 5G-R and GSM-R systems.Additionally,it addresses the evolving demands for flexible scheduling and intelligent operation and maintenance of high-bandwidth video data services in the 5G-R system.This solution has successfully undergone end-to-end functional and reliability test verification based on SPN for both 5G-R and GSM-R systems.The test results have surpassed standard requirements,demonstrating that the SPN integration and bearing solution for railway 5G-R and GSM-R systems is both safe and feasible.

关 键 词：5G-R GSM-R SPN 小颗粒硬管道 承载方案 双平面组网 

分 类 号：U285.5[交通运输工程—交通信息工程及控制]