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铁路5G-R系统关键技术创新

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从我国铁路应用场景出发,分析通信业务需求和运用特点.围绕铁路特定需求,在通用架构基础上,5G-R系统增加了铁路专用功能网元.在系统组网方面,重点论述5G-R核心网和无线网组网创新性关键技术,以适配铁路管理机制和可靠性要求.分析5G-R全路共用设备在冗余方式、功能下沉、故障检测和倒换机制等方面的技术优化与创新;5G-R无线网组网采用同站址设备冗余方式,分析RRU冗余、BBU冗余以及PCI规划等方面的技术创新;阐述车地综合传输系统在减少车顶天线、业务与通信解耦、统一时空基准、节省投资等方面的优势.
Innovation in Key Technologies of 5G-R System
This paper examines the requirements and application characteristics of communication service based on the railway operation scenarios in China.Apart from general architecture,the 5G-R system also includes railway-specific functional network elements tailored to meet the unique requirements of railway.In terms of system networking,this paper delves into the innovative key technologies for 5G-R core network and wireless networking,focusing on enhancing reliability and to align with railway management mechanism.It evaluates the improvement and innovation in 5G-R nationwide-shared devices,in terms of redundancy mode,function downsizing,fault detection,and switching mechanism.The 5G-R wireless network adopts site equipment redundancy,and this paper analyzes the technological innovation in RRU redundancy,BBU redundancy and PCI planning.This paper also highlights the benefits of the train-ground integrated transmission system,including reduced roof antennas,decoupling between business and communication,unified spatial-temporal benchmarks,and cost savings.

intelligent HSRrailway mobile communication5G-Rsystem architecturenetworking technologyterminal applicationtrain-ground integrated transmission

蔺伟、王芳、高尚勇、石波

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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

智能高铁 铁路移动通信 5G-R 系统架构 组网技术 终端应用 车地综合传输

中国国家铁路集团有限公司科技研究开发计划项目中国铁道科学研究院集团有限公司科研开发基金项目

J2023G0062023YJ107

2024

10.19549/j.issn.1001-683x.2024.06.20.005

中国铁路
中国铁道科学研究院

中国铁路

北大核心
影响因子：0.407
ISSN：1001-683X
年,卷(期)：2024.(7)