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1、ABSTRACTTheinformationsocietyrequiresthewirelesssignaleverywhere,agreaterchallengefortheoperators.Excessivecompetitioninthecommunicationsindustryinrecentyears,resultinginalowerstatusofthecommunicationsindustry,viciouscompetitionbetweencarriersoperatingcom
2、paniesownalargenumberofconstructionpropertyissues,andtoimprovethecommunicationinfrastructureconstructionandrentalcosts.Thesubwayplaytheimportantroleoftransportcapacity,withintheperiodoftimeinthefuturewirelesssignalcoverageinthesubwayenvironmentoperatorsmu
3、stsolvetheproblem.Buildasharedindustryapproachtotheintroductionofmaintenancetosomeextent,thestatusoftheindustry,andcommunicationsystemconstructioninthesubwayontheissue,ledbyindustrymanagementdepartmentCommunicationsAuthoritytalkaboutreunificationwiththesu
4、bwayoperatorside,themaintenanceofthecommunicationsindustryinterests,reduceoperatingcostsatthesametimetoachieveeffectivecoverageofthewirelesssignal.Subwayarelongandnarrowundergroundtunnelscene,themacrostopsisdifficulttocover,eventhoughthecoverage,withinana
5、rrowtrack,itisdifficulttobuildamulti-pointdistributionsystemantennadistributionsystem.Thethreecarriers,threesetsofRFequipmentisdifficulttoachievecoexistenceinthesubwaytunnels.Therefore,basedonthetunnel-typedistributionsystemcoveringbuildasharedwayofthedis
6、tributionsystemdesign,RFunitofthethreeoperatorsCombinersharing.Firstly,wediscusstheinLocalCommunicationsAuthorityledbuildbuildmode,identifiedbyacontractor,andtheremainingtwowithbuilt,andtheimplementationoftheoperatorsoflarge-scaleprojectsinturnledtothecon
7、structionofthemodeltodeterminetheoperatorsinthesubwaydistributionsystemwasbuiltinthesharedworkofthedivisionoflabor.Turnonaspecificsubwaylinecoverageanalysisgivenwirelessnetworkindicatorsofdistributionsystemdesignandequipmentselection,thedeviceconnectedtot
8、hedeploymentandsub-scenescoverage,emphasizingthekeyperformanceconsiderations.Throughpost-optimization,effectivesolutiontothesubwaywithinthewirelesssignalcoverage.Thepapergivesadetaileddesignanddesignideas,toplayaref
