The Solutions Of Wireless Coverage On High-speed Railway And Tunnel

With the development of society and economy,people on the mobile communication and taller to the requirement of more and more high.In some special situations also needs a high level of communication quality,High-speed railway is one kind of important special scene.With the speed railway opened,high-speed railway network coverage of the communication network have become increasingly demanding.Since the railway scenes special and high-speed mobile network to bring all aspects of impact,resulting in greatly reduced the user's perceptions.This thesis focuses on high-speed railway mobile communication system covering research,to provide good quality coverage.Performance of wireless networks in high-speed scene has been the element that the telecommunications equipment manufacturers and operators strive to improve for a long time. Under the environment of high speed railway,the performance of wireless channel would change dramatically.As for the characteristics of the propagation of radio wave,this paper proposed a model of wireless channel in high speed railway,discussed the propagation environment in tunnel.This article first has a general description on the rate on high-speed railway,body,special settings such as the problems caused by making a detailed coverage of theoretical, for the planning and design,providing a theoretical basis for the program.Second, this article has a in-depth discussion on all aspects of the high-speed railway network coverage,Which network formation,covering technical and planning principles are the key to achieve high-speed railway coverage. Finally,this article has a discussion on the actual construction of the specific circumstances of the tunnel coverage, and in detail,to find an effective solution for various types of tunnel network coverage to the whole network,to reach the ultimate goal of continuous coverage.