Core Viewpoint - The comprehensive upgrade of the GSM-R wireless subsystem for the Beijing-Shanghai high-speed railway has been completed, enhancing communication efficiency and overall network performance, thereby supporting safe and efficient railway operations during the upcoming Spring Festival in 2026 [1][3]. Group 1: Upgrade Details - The upgrade was fully executed using domestically produced equipment, significantly improving the communication efficiency and reliability of the railway's dedicated mobile communication system [1][5]. - The project involved over 3 months of intensive work, with more than 3,800 personnel participating in the construction, resulting in the establishment of 2 redundant hot backup base station controllers and 107 base station devices [5]. Group 2: Technical Enhancements - The upgraded system features a "full-link, no dead zone" intelligent monitoring network, which enhances the stability, reliability, and anti-interference capabilities of communication during high-speed train operations [5]. - The upgrade has improved the autonomous controllability of the domestic communication system and reduced maintenance costs, providing a strong guarantee for the long-term development of railway communication [5].
全面国产化！京沪高铁北京段无线系统焕新升级，通信效率大幅提升