Due to the characteristics of high-speed railway train

such as strong airtight

fast speed and concentration of people flow

the wireless network of high-speed railway has always been the difficulty of network construction. This paper analyzes the complex terrain and strong capacity demand of wireless network along Guizhou high-speed railway

and gives planning suggestions from the aspects of network type

frequency band selection

construction scheme inside and outside the tunnel

etc. At the same time

the existing high-speed railway network is also proposed how to develop the network to 5 G.