Design And Impelementation Of Subway Public Communication Distribution System

To release the traffic pressure that accompany with the urban sprawl, the rail transit in China has entered a golden period of rapid development. Passenger’s request in using mobile phone while taking subway is continuously promoting. The Subway Public Communication Distribution System is established in order to meet the demand. The main function of this system is achieving the public communication network underground, so that the passengers can enjoy the Mobile Communication Service as usual.For completing the design and construction of Subway Public Communication Distribution System, This essay demonstrates the theoretical model of indoor coverage, and the common design method, combines the special property of subway environment, analyzes the networking mode, and verifies the result.States the difficulties in practical construction process, which is concentrated on the installation of devices and Leaky Coaxial Cable. The method being new is usedCurrently, the system has been put into use officially. The signal system works well after connecting with the devices of telecommunication operators. It achieves the expectation and be appreciated by most of passengers.