Construction And Optimization Study Of Beijing-Shanghai High-speed Rail Wireless Network

With the rapid development of mobile wireless network coverage, network quality improvementing and service quality becom increasingly demanding, accompanied by expanding thesize of our economy, science and technology continues to increase, the developmentof high-speed railway construction become faster and faster.In the future,China will build 42 high-speed passenger rail lines, basically completed "four vertical and four horizontal" national rapid transportationnetwork, with a total mileage of over 20,000 km. Speed high-speed railway hasreached 250 km / h, the average running speed has reached 200 km / h. By thedevelopment of high-speed rail materials, making the car to strengthen thenetwork signal shielding, and along with the rapid movement of high-speed rail,resulting in GSM network quality deterioration evident in the high iron can notmeet the needs of the user’s normal call, the growing number of usercomplaints. High-speed rail along the low connection rate, low coverage, highrate of dropped calls, high interference and voice quality deterioration becomeprominent troubled network development.This paper has carried on the thorough analysis and the detailed elaboration on the basic reasons of the confusion, and analyzes the problem of how to reduce or avoid high-speed railway coverage combined with the daily network optimization experience,and makes a deep exploration and thinking of how to reduce the drop call rate, increase customer Quality of Experience and satisfaction.Based on the construction of the base-station,the modulation of the network coverage and network parameter,the optimized solutions of the actual GSM high-speed rail network are put forward,which can solve the complaints and other issues of the GSM network in the high-speed railway effectively.