Research On Wireless Signal Coverage In Subway Public Places Based On Co-construction And Sharing

The information society requires the wireless signal everywhere, a greater challenge for theoperators. Excessive competition in the communications industry in recent years, resulting in alower status of the communications industry, vicious competition between carriers operatingcompanies own a large number of construction property issues, and to improve the communicationinfrastructure construction and rental costs. The subway play the important role of transportcapacity, within the period of time in the future wireless signal coverage in the subwayenvironment operators must solve the problem.Build a shared industry approach to the introduction of maintenance to some extent, the statusof the industry, and communication system construction in the subway on the issue, led byindustry management department Communications Authority talk about reunification with thesubway operator side, the maintenance of the communications industry interests, reduce operatingcosts at the same time to achieve effective coverage of the wireless signal.Subway are long and narrow underground tunnel scene, the macro stops is difficult to cover,even though the coverage, within a narrow track, it is difficult to build a multi-point distributionsystem antenna distribution system. The three carriers, three sets of RF equipment is difficult toachieve coexistence in the subway tunnels. Therefore, based on the tunnel-type distribution systemcovering build a shared way of the distribution system design, RF unit of the three operatorsCombiner sharing. Firstly, we discuss the in Local Communications Authority led build buildmode, identified by a contractor, and the remaining two with built, and the implementation of theoperators of large-scale projects in turn led to the construction of the model to determine theoperators in the subway distribution system was built in the shared work of the division of labor.Turn on a specific subway line coverage analysis given wireless network indicators of distributionsystem design and equipment selection, the device connected to the deployment and sub-scenescoverage, emphasizing the key performance considerations. Through post-optimization, effectivesolution to the subway within the wireless signal coverage. The paper gives a detailed design anddesign ideas, to play a reference for subsequent similar projects.