Research On Hukun Passenger Special Line GSM-R Network Optimization

With the large-scale construction of the Passenger Dedicated Line, GSM-R as the development direction of China’s railway communication wireless network communication system has been gradually to replace the existing railway wireless communication system. Especially in the Wuhan-Guangzhou, Zhengzhou-Xi’an high-speed Passenger Dedicated Line, the GSM-R system is the data information interacting channel of ground equipment and vehicle equipment for CTCS-3train control system, it is an important part of high-speed trains to achieve the integration of Railway Signal&Communication integration. Therefore, there are more stringent requirements for the reliability and security of the GSM-R network.In the background of this study, the paper mainly discusses the GSM-R network optimization technology, and aim at Shanghai-Kunming dedicated mobile communication line of GSM-R network construction the actual situation, construction and optimization of the GSM-R network. By analyzing the allocation of frequency bands of the GSM-R system, business model, and wireless propagation model, Elaborated on the contents of the key technical indicators and regulatory requirements, and pointed out the importance of network optimization. The paper conducted a comprehensive analysis of the factors affecting the GSM-R wireless network quality of service, and network optimization process is designed for these factors. According to the GSM-R network construction and construction experience, the paper designs building program which includes interference cancellation, the electromagnetic environmental testing and system bandwidth business and other GSM-R system network.According to Chang-Kunming Passenger Dedicated Line GSM-R network application requirements, via discussing the aspect of GSM-R network coverage, interference, switching etc., the paper designs the main line and contact line wireless network-building program and construction and optimization of the GSM-R network. It is the valuable experience and design ideas for the construction of GSM-R network optimization in the future.