This article unified in the Ericsson equipment daily optimization work the E-GSM frequency band application situation, the centralism elaborated the E-GSM frequency band to the network improvement and the present use limitation, so that reasonable use E-GSM frequency band, better application GSM 900M network.

This paper discusses the GSM-R wireless network and the relationship between high-speed train made out control information in order to ensure reliable transmission of GSM-R network coverage to the requirements of the depth of redundancy of GSM-R network for the specific analysis.

The paper briefs on the current situation of radio communication system both at home and abroad, and discusses GSM-R design scheme of Beijing-Qinhuangdao railway from following points: the necessity to build GSM-R system, building scheme of the system, technology test and secondary development.

This paper expatiate the problems in the exiting networks based on the theory of GSM-R system, and proposed the advices in the network designing, maintenance and the network optimization.

Wireless interface of GSM-R system is designed for high-speed railway with the velocity 500km/h, and suitable for the development and requirement of high-speed railway which also meets the demands of new-generation synthetical digital mobile communication network .

The GSM-R technology in our country′s application situation is proposed,and the European technology is introduced in the foundation to unify our country′s actual situation to make various aspects independent research and development,caused our country′s GSM-R technology basic and the developed country maintains at the identical level,the improvement and development of GSM-R technology are given.