济南局首条350高速铁路数字光纤直放站应用分析

Application Analysis of Digital Optical Fiber Repeater of the First 350 High-Speed Railway in Jinan Railway Bureau

GSM-R数字光纤直放站是GSM系统基站与移动台之间的中继转发器,属于同频放大设备,在无线通信传输过程中起到增强射频信号的作用,广泛应用在CSM-R线路中隧道、山区、路堑等地形环境。随着我国铁路的快速发展,越来越多的高铁线路纵横交错,GSM-R网络在铁路线路上的覆盖情况也越来越复杂。GSM-R数字光纤直放站也是铁路沿线弱场覆盖设备之一,铁路沿线弱场覆盖设备主要有宏基站、分布式基站、数字光纤直放站、模拟光纤直放站等。随着通信技术的数字化发展,模拟光纤直放站将逐步淘汰,高速铁路上采用数字光纤直放站设备覆盖的线路也越来越多。文中以济莱高铁GSM-R数字光纤直放站为例,分析了其性能、组网、建设、验收及使用情况,为其他类似项目提供借鉴。

GSM-R digital optical fiber repeater is a repeater between base station and mobile station in GSM system.It belongs to the equipment of same frequency amplification.It plays the role of enhancing the radio frequency signal in the process of wireless communication transmission,it is widely used in tunnel,mountain area and road cutting of CSM-R line.With the rapid development of railway in our country,more and more high-speed railway lines crisscross,the coverage of GSM-R network on railway lines is more and more complex.The GSM-R digital optical fiber repeater is also one of the weak field covering equipment along the railway line,there are many kinds of covering equipment for weak field along railway,such as macro base station,distributed base station,digital optical fiber repeater,analog optical fiber repeater and so on.With the development of digital communication technology,analog optical fiber repeater will be phased out,and more and more high-speed railway lines are covered by digital optical fiber repeater equipment.Taking the GSM-R digital optical fiber repeater of jilai high-speed railway as an example,the paper analyzes its performance,networking,construction,acceptance and use,which can be used for reference for other similar projects.