BroadbandAccessPlatformsCONFIDENTIALThisreportissolelyfortheuseofclientpersonnel.Nopartofitmaybecirculated,quoted,orreproducedfordistributionoutsidetheclientorganizationwithoutpriorwrittenapprovalfromMcKinsey&Company.ThismaterialwasusedbyMcKinsey&Companyduringanoralpresentation;itisnotacompleterecordofthediscussion.FCCTutorialCommunicationsNetworksandServicesStaggNewmanApril14,2002McKinseyandCompanyDCO-AEA016/010731DcgsPP11TwistedCopperPair•xDSL•Voice-over-DSL•VDSLHybridFiberCoax•CableModem/VoIPOpticalFiber•GigabitEthernet•PassiveOpticalNetworksPowerline•PowerlineTelecommunicationsFixed•MMDS•LMDS•Free-spaceoptics•Unlicensedfixedwireless•WirelessMesh•SatelliteNomadic/mobile•WLAN•Next-GenerationMobileTECHNOLOGIESPROFILEDWirelineWirelessDCO-AEA016/010731DcgsPP12xDSL–TALKINGPOINTS•Copper-basedbroadbandtechnologyforthelocalloop•TargetsresidentialandSMEmarket•Leveragesubiquitoustelephonenetworkinfrastructuretoofferhigh-speeddataBasicsBasics•ProfitabilityhasbeenachallengebothforCLECsandILECs•Provisioningrateconstrainedbyback-officebottlenecks•ImprovementsinOSSrequiredtohandleprovisioning,billing/customercareandsupportforadvancedservicesIssuesIssuesDCO-AEA016/010731DcgsPP13DIGITALSUBSCRIBERLINE(xDSL)–OVERVIEW•DataratesvarywithversionofDSLandlooplength–Forthemostpopularversion,ADSL,theinternationalstandardfromITU-Tspecifiesamaximumspeedof6.1Mbpsdownstreamand640Kbpsupstream*–Inpractice,thetopspeedof6.1Mbpsisonlypossibleforloopsupto9kft,goingdownto1.5Mbpsforloopsupto15kft–Typicalspeedsavailablefrom640Kbpsto1.5Mbps–Thefastestversion,VDSL**,supports55Mbpsdownstreamfor1kftloopsand13Mbpsfor4.5kftloops,withupstreamspeedsof1.6-2.3Mbps•EachuserhasadedicatedlinefrompremisetotheDSLAMlocatedatcentralofficeorremoteterminal•Supportedservices–DataandVoDSL(withvoicegateway)–ADSLsharesthesamecopperlinewithanalogtelephony–VDSLcansupportswitchedvideo•Addressability–Requires“clean”end-to-endcopperlinewithoutloadingcoilsorbridgetaps–Maximumcopperdistanceo...
