Innovation in Key Technologies of 5G-R System  

作　　者：LIN Wei WANG Fang GAO Shangyong SHI Bo CHEN Min(Translated) 

机构地区：[1]Signal&Communication Research Institute,China Academy of Railway Sciences Corporation Limited

出　　处：《Chinese Railways》2024年第2期55-65,共11页中国铁路(英文版)

摘　　要：This paper analyzes the communication business needs and application characteristics based on China's railway operation scenarios.Focusing on the specific needs of railways,the 5G-Railway(5G-R)system adds railway-specific functional network elements on the basis of general architecture.In terms of system networking,it focuses on the innovative key technologies of 5G-R core network and wireless network networking to adapt to the railway management mechanism and reliability requirements.It analyzes the technical optimization and innovation of 5G-R railway common equipment in terms of redundancy mode,function sinking,fault detection and reversal mechanism,etc.;5G-R wireless network adopts the same-site equipment redundancy mode,and the paper analyzes the technological innovation of RRU redundancy,BBU redundancy and PCI planning,etc.;it also highlights the benefits of the train-ground integrated transmission system,including reduced roof antennas,decoupling of services and communication,unified spatial and temporal benchmarks,and cost savings.

关 键 词：intelligent HSR railway mobile communication 5G-R system architecture networking technology terminal application train-ground integrated transmission 

分 类 号：TN9[电子电信—信息与通信工程]