地球仪PPT模板

InternalUseOnly2020/2/13Thebackgroundformetroconstruction2020/2/13TextinheremetroComfortableTimelessEconomicandsocialsignificantLotsofblindspotExistdopplereffectQualityofsignalisbadlyinhigh-speedHONGXINCOMMUNICATIONTECHNOLOGIESCO.,LTD.AlmostallkindsofwirelesssignalsinsidethetunnelareintheblindareaAlargerflowofpeopleinsidethemetro,sotherewillbemorehighertrafficItiseasytogreatthefastdeclineThesignalofmetroisverycuteTraincarswillcausetheshieldingofthewirelesssignalHONGXINCOMMUNICATIONTECHNOLOGIESCO.,LTD.ThewirelessenvironmentoftheplatformAlmostallkindsofwirelesssignalsinsidetheplatformareintheblindareaTherearedifferentnumbersofpeopleindifferentstation,soalsohavedifferenttrafficindifferentplaceThesignalofmetroisverycuteThesignalwillcauseamoreseveredeclineinsidethetrainswhenthetrainstops2020/2/13HONGXINCOMMUNICATIONTECHNOLOGIESCO.,LTD.ThewirelessenvironmentofwaitingroomAlmostallkindsofwirelesssignalsinsidethemetroareintheblindareaThesignalofmetroisverycuteThewallsoftheworkingareablockthesignalveryserious2020/2/13HONGXINCOMMUNICATIONTECHNOLOGIESCO.,LTD.ThewirelessenvironmentofexittunnelThesignalisveryunstableforthelongtunnel2020/2/13HONGXINCOMMUNICATIONTECHNOLOGIESCO.,LTD.SolutionSolutionDistinguishUplinkandDownlinkTunnelcoveragePlatformcoverageExitcoverageHONGXINCOMMUNICATIONTECHNOLOGIESCO.,LTD.2020/2/13SolutionDistinguishUplinkandDownlinkForthereasonthattherearesomanywirelesssignalsinthemetro,ifeveryoperatoruseownsystem,itwillleadtoduplicationofinvestments,andhaveabiginfluencetotheprojectconstruction.SoweoftenusethewaythatmoreoperatorstoshareoneAntennafeedersystem.2020/2/13RepeaterormicrocellDistributionSolutionDifferentoperators+HONGXINCOMMUNICATIONTECHNOLOGIESCO.,LTD.SolutionTunnelcoverageBaseonthewirelessenvironmentoftunnel,forthespecialinfluenceforthesignal,therewillbeafastdeclineWhenthesignaltransmitinthetunnel,Butifweusethedirectionantenna,westillcannotsolvethefastdecline.Thesesituationwillcasetheunstableofthesignal,andtherewillbethehugeinfluencewhenthetrainpassby.Soweusetheleakcabledothedistributesystemforthemetro.2020/2/13HONGXINCOMMUNICATIONTECHNOLOGIESCO.,LTD.SolutionThecoverageoftheplatformForthereasonthattheplatformwiththetunnelinthesomeplate,wedonotdothecoveragetotheplatforminthenormalsituation,butwhentherearebigobstaclesintheplatform,weshouldusetheleakcabledothecoverage2020/2/13HONGXINCOMMUNICATIONTECHNOLOGIESCO.,LTD.SolutionThecoverageofexittunnelWeusetheleakcableordirectionantennadothecoveragetothelongtunnelweusetheceilingantennadothecoveragetotheshorttunnel2020/2/13HONGXINCOMMUNICATIONTECHNOLOGIESCO.,LTD.SolutionThecoveragetothewaitingroomLeakcableAntennaarray2020/2/13HONGXINCOMMUNICATIONTECHNOLOGIESCO.,LTD.Sketchmapoftheproject2020/2/13CouplerMasterSlaverLeakcableMasterSlaverOpticalcableHONGXINCOMMUNICATIONTECHNOLOGIESCO.,LTD.ThankYou!Maaky.taobo.com2020/2/13