Research On GSM-R Network Service Quality And Effectiveness For High Speed Railway

This paper introduces the GSM-R railway frame and the frequency of application of Wu Guangxian,which focuses on the factors and conditions of internal and external interference,especially on the analysis of the interference of the urban communication signal China Unicom(CDMA)system architecture,so as to clarify the interference caused by the impact of GSM-R.In the study of GSM-R parameters,the problem of isolation distance of two network systems is studied,and the effect of anti-jamming is verified according to the change of internal parameters and the target location.Using Hata on-demand transmission principle,calculation and simulation,and finally to obtain a number of sections meeting the GSM-R conditions.In the study,we found some problems in the fiber-fat range of some GSM-R systems,including interference,signal source blocking and so on.According to the Abis technology interface detection,interference factors are reminded to achieve data control of fiber.The research of the subject provides a powerful theoretical basis for the interference of urban communication signals to GSM-R system,which is of great significance to further study the optimization of GSM-R system and network construction of high-speed railway in Yunnan area.On the GSM-R downlink in the same frequency interference,the subject has also been study in detail.This paper focuses on the Abis system interface data monitoring technology of Wuhan-Guangzhou line,and combines the single-antenna SAIC theory application to carry on the comprehensive analysis.From the system and the link,two technical aspects are researched.We summarize the changes in the downlink co-channel interference in the system operation and the simulation of GSM-R models in different intervals.In the study,Monte Carlo simulation tests are carried out on the same frequency infection of the cell and the chain cell,and the data status of the two interval systems is obtained.Finally,the comparison is made in theory to realize the practical improvement of SAIC technology application.