Railway GSM-R Communications-Net Redundancy Protection And Business Application Research

China railway is moving towards a high-speed railway, passenger special line direction. Our country's existing railway wireless communications network provided business and function and the modern railway transportation needs in the gap between the expanding constantly, European gsm-r successful application for China railway communication technology development provides a good technical reference. Gsm-r has more adapted to railway transport characteristics of functional superiority, the more mature technical advantage, more accord with communication signals integrated technology development needs. At present, our country has completed the construction of high-speed railway, or passenger special line of wireless communication system adopted the gsm-r technology.This paper discusses the gsm-r related basic theory and its technical characteristics, for later chapter discusses do twisted. Paper elaborated the China railway gsm-r network structure planning and development status and research how to share equipment HLRi and cr some important network equipment implementation of effective redundancy and protective measures.Papers on gsm-r network under the user business terminal type switch problems are discussed in detail, and also studied in detail in gsm-r network under the business troubleshooting methods and problems needing attention.