无线与频宽整合之多媒体通讯技术

無線與頻寬整合之多媒體通訊技術周勝鄰博士工研院電通所網路技術組組長2003.11.26課程目的本課程將與您一起探討通訊產業中三個重要之發展趨勢IP電信(VoIP)逐漸成為未來通訊技術之主流,不僅將對服務產業將發生變化,而且也將為通訊產品產業帶來新契機;本課程將提供學員對此一領域做初步之介紹ENUM為一項非常新的技術,它將是推動IP/PSTN系統與服務整合的最大動力,同時也將對網際網路之應用產生革命性之衝擊,為人們使用日常生活之所有通訊服務帶來莫大之便利;本課程將對此一最新技術及其發展趨勢做深入淺出之說明WLAN之近年來成為無線通訊之熱門話題,各企業甚至家庭開始積極建設WLAN,此趨勢相信將持續幾年.不過建設WLAN作何用途?PublicWLAN服務業者有無生存空間?WLAN與3G關係又是如何?互補呢還是競爭?本課程最後一節將與您一起探討WLAN與無線通訊系統之競合關係,了解WLAN應用之發展趨勢課程大綱IP電信技術的發展趨勢VoIP的過去現在與未來VoIP的技術發展從H.323到SIPSIP的應用與發展趨勢ENUMIP/PSTN整合之新趨勢何謂ENUM?ENUM服務機制WLAN應用服務的發展趨勢WLAN之應用WLAN與無線通訊系統之整合通訊產業幾個重要發展趨勢VoIP產業復甦,有蓬勃發展趨勢IP-Phone,Wi-FiSIPPhone,ResidentialGateway,IP-PBX,…日本YahooBB,J-Phone,…WirelessLAN蓬勃發展,但服務商業模式尚待開發技術演進迅速,公司企業,家用PublicWLAN,Cellular/WLAN整合?WirelessData(MobileInternet)發展不如預期MobileData<<VoiceSMS,MMS,…3G通訊系統前景不明GPRS3G?Cdma2000-1xvs.WCDMA?IP電信技術的發展趨勢Yahoo!BBVoIPBusinessModelOver1M+BBPhoneusers(Dec5th,2002PressRelease)PSTN(NTT)DSLAMSGatewayCallAgent/SoftswitchISP/ASP(Yahoo!BB)VoIPTAVoIPTAOn-netcallfreeOff-netcall7.5Yen/3min.(1)CallsfromPSTN(2)PSTNspecificservices,e.g.emergencycallASDL+VoIPasTheFirstMilePOTSphones+PSTNphonenumbersVoIP的過去BornofVoIPIndustryVoIPPhoneVocalTech1995H.323StandardforVoIPIndustryH.323WasProposedbyITU-TforMultimediaCommunicationoverLANin1996AdoptedQuicklyandWidelybyIndustriesVoIPGateway,Gatekeeper,EnterpriseGW,IADMainlyUsedinEnterprise,Toll-by-PassApplicationsMarketSlowDownInfrastructureBottleneckLimitationofH.323NewTechnologiesDevelopedUsersHesitatetoBuyH.323ProductsVendorsInvestMuchinH.323VoIP的現在NewTechnologiesReadyMGCP,MEGACO/H.248,SCTP/M3UA,SIP/SDP,…IETF-likeProtocolsNewProductsDevelopedMostUpgradedfromH.323Products

SupportNewTechnologiesaswellasH.323VoIPInfrastructureSoftswitch,TrunkGW,SS7SignalingGW(SS7overIP)MarketRe-BoomingIETFTechnologiesDominateSIPTelephonyBeingWidelyAcceptedENUMforIP/PSTNConvergenceBeingDevelopedSoftswitchvs.SIPSoftswitch:MainlyforClass4/5SwitchReplacementSIP:ProvideTelephonyfromIP’sPointofViewVoIP的未來VoIPInfrastructurewillGetReady(HowSoon?)ENUMforIP/PSTNConvergenceProductandServiceStarttoBoomIt’sTechnologiesTrend,NotJustforCostSavingDrivingForceofNGNMandatoryinFutureAll-IPNetworkSIPTechnologiesWillDominateSIPTelephony/COSignaling/MultimediaService/3GKeyTechnologiesforIP/PSTNConvergenceTrendsofVoIPTechnologiesH.323SystemNextGenerationVoIPProtocolsOpenTelephonyArchitectureInternetTelecomServiceTechnologiesMGCPMEGACO/H.248SIP/SDPSS7overIP(SCTP)3GPPOpenServiceArch.ISCSoftswitchVoIPCallModelingAPI:Parlay,JAIN,...IP-basedSCPIP-SCEPrettyAmazingNewServices(PANS)VoIPTechnologiesfor3GCoreNetwork979899 00010203040506EnterpriseVoIPSystemsCarrier-gradeInternetTelecom.System3GAll-IPCoreNetworkSystemApplicationsTechnologyComplexityVoIPGateway/GatekeeperIP-PBXIP-PhoneSoftswitchSignalingGatewayMediaServer&Gateway(IAD,TrunkG/W)ApplicationServerSIP-basedSystemsIP-SCPIP-SCEYearWorldTaiwanIP/PSTNConvergencePSTNSIPProxyENUMServiceSystemSIPPhoneSIPPhoneGatewaySoftswitchApplicationServerMediaServerSIPTelephonyH.323ENUMServersOperator1Operator2SIPSIPDNSIPNetworkVoIPServicesApplicationsPSTN’s(Telecomm.’s)PointofViewEquipPSTNwithVoIPServicesOriginalVoiceUsersForCostSaving,NoServiceEnhancementClass4/5SwitchReplacementwithSoftswitchNoExtraRevenueISP’’s(IP’’s)PointofViewEnhanceDataNetworkwithVoIPCapabilityAdditionalVoiceServicetoOriginalDataUsersEvenVoice/DataIntegratedServicesSIPTelephony+Application/MediaServersVoIPTechnologiesFromH.323toSIPH.323forVoIPHasBeenAdoptedbyVendorsforYearsAlmostCurrentVoIPProductsSupportH.323GatewayGatekeeperTerminalMCUPacketBasedNetworkN-ISDNB-ISDNH.320TerminalH.321TerminalH.321TerminalH.310terminaloperatinginH.321modeGSTNH.324TerminalH.322TerminalGuaranteedQoSLANSpeechTerminalSpeechTerminalV.70TerminalH.323MCUH.323TerminalH.323TerminalH.323TerminalH.323GatekeeperH.323GatewayPacketBasedNetworkChallengesofH.323H.323WasOriginallyProposedforLANEnvironmentLimitationBeingAppliedforVoIPInfrastructureApplicationsArchitectureisTooSimpleSingleGatewaytoInteractwithPSTN/GSMSuitableforPeertoPeerCommunicationProtocolisTooComplexComplicatedCallSet-UpSignalingHardtoExtendSignalingIsNotEnoughOnlyDTMFisSpecifiedNoSS7SignalingCapabilityAdvancedServicesareLimitedInteroperabilityisStillanIssueGatewayDecompositionSS7SignalingTrafficMediaGW(MG)MediaGWController(MGC)SignalingGW(SG)H.323GWMGC:CallControl,CallRouting,ServiceSelection,…SGInterfacewithSS7andTranslatetoSS7overIPMGDedicateforMediaTranslationandTransportationMGCPMediaGatewayControlSGCPTelcordiaMay‘98MDCPAT&TDec‘98Aug‘00MEGACO/H.248IETF/ITU-TLevel3,...Aug‘98IPDC0.12IPDC1.0Sept‘98MGCP1.0IPDC:IPDeviceControlProtocolSGCP:SimpleGatewayControlProtocolMGCP:MediaGatewayControlProtocolMDCP:MediaDeviceControlProtocolMEGACO:MediaGAtewayControl(IETFWorkingGroup)MGCP/MEGACO/H.248Client-ServerArchitectureCallAgent(MediaGatewayController)CallControlServerMediaGatewayDedicatedforMediaTransmissionTrunk/Access/ResidentialGWsSignalGatewaySS7InterfacingRTPStreamsSS7(ISUP)SGWSGWSS7(ISUP)TrunkGWTrunkGWCOIPphoneAccessGW/IP-PBX/RGWIPphoneMGCPMGC(CA)MGC(CA)MGCP/MEGACOMGCP/MEGACOISUP/MGCP/SIPInterworkingSGMGCMGCSGSS7overIPISUPTCAPSCCPMAPMTPOSILayersApplicationPresentationSessionTransportNetworkDataLinkPhysicalINAPSS7ProtocolStackISUPTCAPSCCPMAPSCNSignalingAdaptation(M3UA,IUA,…)CommonSignalingTransport(SCTP)IPINAPSIGTRANProtocolStackSoftswitchSystemArchitectureIN/SCPPSTNLocalSwitchPSTNLocalSwitchSTPSS7NetworkIPNetworkRTPStreamsMGCMGCTrunkGatewayTrunkGatewaySIP-TSGSGSIGTRANMegacoIPPhoneIP-PBXIPPhonePCPhone9000PersonalizedVoIPServiceSystemBilling/InternetMessagingAuthentication/Directory/...WhatisASoftswitch?Software,hardwareandapplicationssolutionstypicallycomepackagedinasingle(proprietary)box.Non-standardsolutionsareexpensivetoimplementandleavelittleroomforinnovation.Circuit-SwitchedTransport

HardwareCallControl&SwitchingServices&ApplicationsPROPRIETARYSolutionsareopenstandards-basedproducts,andcancomefrommultiplevendors.Customersarefreetochoosebest-in-classproductstobuildtheirnetwork.OpenstandardsenableinnovationandinthelongruncanreducecostsSoft-SwitchedTransportHardwareSoftswitchCallControlServices,Applications&Features(Management,Provisioningand

BackOffice)OpenProtocolsAPIsOpenProtocolsAPIsWirelessSystemFromGSMtoGPRSGPRSExternalDataNetworkPSTNHLRSGSNGGSNGbGnGiGSMPCUBSSGatewayMSC/VLRVisitedMSC/VLRAlways-OnWirelessPacketDataServicesIPMultimediain3GAll-IPSystemApplications&ServicesSCPTEMGWMTUTRANRUuTESGSNMTBSS/GERANRUmMGWPSTNLegacy/ExternalGGSNHSSLegacyMobileSignalingNetworkR-SGWCSCFHSSMGCFGbIuIuIuIuAT-SGWEIRMSCServerGMSCServerApplications&ServicesCSCFMultimediaIPNetworksMRFGnGfGcGrGiGiGiMrMsMgMwGiMmMcMcMcDCCAPCAPCAPMhCxNcNbSignalingandDataInterfaceSignalingInterfaceAlternativeAccessNetworkSIPSIPTelephonySystemUserAgentClient(Caller)UserAgentServer(Callee)ProxyServerProxyServerProxyServerRedirectServerLocationServerSIPRequestSIPResponseRTPMediaStreamSIPAttributesUserAgentsEndSystemsActingonBehalfofaUserClients(UAC)toinitiateaSIPrequestandservers(UAS)toreceivetherequestandreturnresponsesServersProxyServerRelayCallSignalingRedirectServerRegistrarServer:UserLocationsTracking(LikeHLRinGSM)Naming&AddressingSIPURL,e-maillike:user@hostExamplessip:patrik@sip:Jackie@SIPOperationinProxyModeSIPOperationinRedirectModeProtocolFormatINVITEsip:pgn@example.seSIP/2.0Via:SIP/2.0/UDPFrom:Fingal<sip:ffl@>To:Patric<sip:pgn@example.se>Call-ID:1234567890@Cseq:1INVITESubject:lunchatLaEmpenada?Content-Type:applcation/sdpContent-Length:…v=0o=ffl536557652353687637INIP4s=Chorizoc=INIP4m=audio5004RTP/AVP035a=rtpmap:0PCMU/8000SIPHeaderPayload:MIMEtype(SDP)SIPinIPMultimediaArchitectureApplicationsSDP/SDPngHTTPSMTPSAPSIPRTSPTCP/SCTPTCP/UDPUDPRTP/RTCPRSVPIPv4/IPv6withMobility,DiffServandMulticastCommonAddressing,user@domain(URI&URL)Text-basedandEncodingFormatSameRequest-ResponseModel,andResponseCodesMIMEforFlexiblePayloadDNSforAddressMappingEasytoDoIntegratedServicesbyCombiningmorethanOneProtocolsSIP-BasedServicesInternetTelephonyWell-RecognizedIPTelephonySystemInstantMessagingExchangeofContentbetweenParticipantsinReal-timePresenceSubscriptiontoandnotificationofchangesinthecomm.StateofausersClick-to-CallfromanElectronicDocument‘SIPastag’ContainedinDocumentTransportofMIMEinSIPSignalingReferencetoWeb/WAPPages,mail,picturesInteractiveGameswithSIPSignalingRichCallwithSIPBeforetheCallDynamicPhoneBookClick-to-TalkDuringCallEstablishmentSendingaRichClip,whichCanbeAPicturewithCallSubject,orSpecialRingingToneDuringtheCallDocumentSharingInformationPushDuringSessionTear-Down(sameasCallEstablishment)AftertheCallBeAbletoSendInstantMessageSIPforInstantMessagingIntegrationofMessaging,Presence,andSession-orientedCommunicationRFC3428SIPExtensionforInstantMessagingSIPMESSAGEMethodPager-modeIMForsmallIMExchangeCarryIMonSignalingChannelBigOverheadPager-modevs.SessionmodeInstantMessagingPager-modeEachmessageisindependentofanyothermessageSession-modeIMsareassociatedwithamediasessionestablishedbySIPINVITEmethodMessageSessionRelayProtocol(MSRP)IETFDraftSupportSession-modeIMbetweenEndpointsSIPforIPConvergenceIn3GandNGN,theFocusShifttowardstoAll-IPParadigmIPTransport,IPMobilityandVoIP(e.g.SIP)ProtocolSIPHasBeenAdoptedby3GPPforSessionSignalingSIPTelephonySystemHasBeenWellAcceptedWithSIP,ServiceCreationisFastandEasyIPProtocolsvs.TelecomProtocol,likeINBeabletoIntegrateMostIP-basedServicesServiceMobilityandPersonalReachabilityBySIPandIPv6MobilityCCLVoIPSolutionsCCLVoIPSolutionsProtocolsH.323,SGCP,MGCP/H.248,SIP,RTP/RTCP,SCTPandM3UA,…RelatedVoIPProductsTechnologiesandSystemsCTI/IP-PBXSoftswitch/MediaGatewayControllerSS7overIPSignalingGatewayTrunkGatewayMediaServer,ApplicationServerSIP-basedPresence/MessagingServerSIP-basedIPTelephonySIPUserAgentSIPProxyServerSIP-basedApplicationServerIP-PBXLAN/WLANIPTrunkingRichPBXfeaturesInternetCallCenterACD:AutomaticCallDistributionCCLIP-PBXVONTEL(cont.)EnterprisegradeIP-PBXRichCallFeaturesUpto5,000devicesBHCA:60,000(BusyHourCallAttempt)MultimediaIPCallCenterSolutionPlatformAdvancedSkill-basedRoutingACDSystemRich3-partyCallControlAPISupportVoice/E-mail/Fax/andothermediaProvidebothproprietary&TAPI3.0compatibleAPIsConvergedSwitchSystemPSTNInterworking(MegacoInterworking)SIPInterworkingH.323InterworkingInter-SwitchCallSetupCCLIP-PBXVONTEL(cont.)MediaServerVoicePlay/RecordFaxSend/ReceiveDTMFGeneration/DetectionAdvancedMulti-partyConference(upto8parties/wiretap/whisper)SoftphoneFull-Feature,IntelligentSoftphonePSTNGatewaySupportAnalogFXOInterfaceSupportT1/E1ISDNPrimaryRateInterfaceWeb-basedOA&MSIPTelephonySystemIPNetworkPSTNSS7SoftswitchTrunkGatewayE1TrunkSIPPhone(Cisco,PingTel)Web/Audio/VideoConferencingApplication/MediaServer(IPUnity)UserAgent(Softphone)SIPProxyServerOn-netCallOff-netCallUnifiedMessagingInstantMessagingPresenceCCLSIPProtocolandAchievements7thSIPIT,March2001MarchMarch2001,sponsoredbyETSIatCannes,FranceCCLSIPProtocolStackandUserAgent10thSIPIT,2002AprilApril2002,sponsoredbyETSIatCannes,FranceCCLSIPProxyServer13thSIPIT,2003AugustAugust20023,sponsoredbyETSIinCanadaCCLSIMPLEServer15thSIPIT,2004AugustITRIwillHost15thSIPITSponsoredbyETSIinTaiwaninAugust2004CCLSIPUserAgentCCLSIPProtocolStackProvideClanguageAPISupportRFC2543headersSupportRFC2327SDPParsingSupportTCPandUDPSupportmulti-platform(Windows,Solaris,Linux)CCLUserAgentRFC2543andRFC2543biscompliantRichCallFeatureCallForwarding,Transfer,Hold,Consultation,…SupportRFC2916ENUM(E.164numberandDNS)SupportWindowsplatformCCLSIPProxyServerCCLSIPProxyServerRFC2543andRFC2543biscompliantSupportRegisterSupportRedirectSupportlocationserviceSupportstatefulandstatelessmodeoperationSupportparallelandsequentialsearchSupportRFC2916ENUM(E.164numberandDNS)Supportmulti-platform(Windows,Solaris,Linux)SIPTelephonyFeaturesBasictelephonyfeaturesBasicon-netcallBasicoff-netcall(PSTNinterworking)EnhancedfeaturesCallingnumberdelivery(CND)Callforwardingbusy(CFB)Callforwardingdon’’tanswer(CFDA)Callwaiting(CW)Selectivecallrejection(SCR)AutorecallApplication/MediaserverfunctionsAnnouncementVoicemailConferencingCCLSoftswitchSolutionMediaGatewayControllerSignalingGatewayPSTN10/100EthernetSwitchMediaServerAnnouncementVoiceMailConferencingIPNetworkIPRouterApplicationServerWebConferencingUnifiedMessagingBillingGatewayDatabaseServerElementManagementServerSS7TrunkGatewayIntegratedAccessDevicesENUMIP/PSTN整整合合之之新新趨趨勢勢WhyENUM?Howdonetworkelements(gateways,SIPserversetc)findservicesontheInternetifyouonlyhaveatelephone(E.164)number?Howcansubscribersdefinetheirpreferencesforincomingcommunications?ManyNumber&AddressingMechanismUsedWithENUMOnlyOneNumberENUM101WhatisENUM(RFC2916)?MakeTelephoneNumberBecomeaDomainNameinInternetAnyTelephoneNumbercanRegisterAsDomainNameinIPWorldImportanceofENUMNewAddressingMechanisminIPWorldMechanismforIP/PSTNConvergenceGlobalENUMActivitiesIETF,ITU-T,USENUMForm,Europe,……ENUMTrials:MoreThan10CountriesDifferentKindsofENUMPublic(Personalized)ENUM:FutureVisionCarrierENUM:EnhanceMMS/SMSServicesEnterpriseENUM:EnhanceEnterpriseTelecommServiceWhatisENUM?ENUMMechanismE.164NumberDomainNameSystem(DNS)URI(Service@Host)ENUMisaMechanismtoTranslateanE.164NumberintoAListofURI(Service@Host)SothatAnIPUserCanbeAccessedbyE.164Number.Problem:HowtoAddress(orLocate)aUserinIPWorldfromIP/PSTNNetwork?BasicOperationofENUM“Callsetup”Sipsip:paf@Query..6.4..?Dial+4686859131DNS-ServerSipserverGatewayResponsesip:paf@Source:IETFENUMDomainTier-0TopLevelDomain(TLD)TheChoiceofCommonDesignatedDomainfirENUMTier-0isUndecidedandisProvingControversialARPAasENUMTLDisControlledbyIETFandOperatedbyRIPE-NCCUSandsomeothercountries,ISOC/IAB/IETFSupportIETFConclusionEuropeanUnion,FranceandGermanyProposedITU-TSBastheOperatorforENUMChina,France,Germany,SyriaandSpainObjectedtoARPAasTLDforpoliticalreasontoreinforcetheinfrastructureofInternetgovernanceE.A-ENUMRecommendation“PrincipleandproceduresfortheadministrationofE.164CountrycodesforregistrationintotheDomainNameSystem”TLDisopenITU-TSBistheENUMTier-0AdministratorENUMDNSHierarchy.->;.->;...->NAPTRRRs(ldapURL)LDAPDB...Tier1Tier2(Designatedbytheenduser)...->;Tier3(Dependingontheapplication)6.8.8.->Tier0(RIPE)/.....6.8.8.->;///ldapURLSource:JamesYum,N.ENUMScenarioIPNetworkSoftswitchSIPProxyIADENUMServerE-MailServer15Dial:03-59156162SIPPhone3309109615274UserDialTel.NoENUMQuery,get3URIsMakeSIPCall,NoAnswerMakeMobileCall,FailConnecttoE-MailDNS$ORIGIN..6.8.8..INNAPTR10010““u”““sip+E2U””““!^.*$!sip:slchou@.tw!”INNAPTR10210““u”““tel+E2U””““!^.*$!tel:+886910961527!”INNAPTR10210““u”““mailto+E2U”““!^.*$!mailto:slchou@.tw!”MediaGatewaySignalGatewayEnumRecordENUMScenario(cont.)UserMakeCalltoE.164Number:03-5915616SoftswitchTranslatestheE.164NumbertoQueryInputtoENUMServer:..6.8.8.andgetsalistofURIsreturnedTheSoftswitchProcessesthe1stURIRecord,QueryDNStogettheIPAddressofHost:.twMakeSIPCalltoSIPPhoneofslchouthroughSIPProxySIPPhoneDoesnotAnswerTheSoftswitchProcessesthe2ndURIRecord,MakePSTNCallThroughGatewayto09109615270910961527DoesnotAnswerTheSoftswitchProcessesthe3rdURIRecord,QueryDNStogettheIPAddressofHost:.twConnecttheCallerE-MailServerSMTPProtocolCallerLeavetheE-MailMessageENUMAdministrationIssueTier16.8.8.RegistryTier2RegistryROOTRegistrarRegistrantAuthenticationandValidationEntityASPTier2RegistryTier0e.164

NumberAssignmentEntityRegistryvs.RegistrarRegistryRunstheDNSserverforaspecificdomainnameonedomain->oneregistryRegistrarProvideENUMRegistrationtoENUMUsersSothatUsersNeedNottoContactRegistryRegistrarverifycustomerdata,dobilling,andsenddatatoregistrywhendelegationistobedone,changedorcancelledITU-TENUMActivitiesIETFENUMActivitiesTelephoneNumberMapping(ENUM)WGRFC2916,““E.164numberandDNS”RFC2915,““Thenamingauthoritypointer(NAPTR)DNSresourcerecord”,August,2000RIPE-NCCRelatedENUMActivitiesafterRFC2916UpdateRFCtoreferencetheDDDSRFC2916bis,”TheE.164toURIDDDSApplication”ENUMAdministrativeandOperationalProceduresRegistrationandProvisioning,ValidationandAuthenticationOperationalPrivacy,SecurityIssuesandProcedureIETFLiaisonwithITU-TSG2NewIssuesBeingConsidered:ExtentSameURIinRFC2916forDifferentServicee.g.,2SIPURIsbutoneforvoiceandoneisinstantmessagingIETFENUMActivities(cont.)RelatedENUMActivitiesafterRFC2916(Cont.)SIPvs.ENUMServices,e.g.,distinctionthelocationprovidedbySIPandENUMAddingPresenceasanENUMserviceExtensionofENUMservice‘‘tel’’URILocationNumberPortability,usingDNSasthesourceExtensibleProvisioningProtocol(EPP)inPROVREGWG,IETFMoreThanNumberTranslationOneE.164NumbertoMultipleURIsMultipleNAPTRservice:URIMultipleIPServicesBehindoneENUMsip,tel,ifax,mms,ems,sip,e-mail,……ServiceRealizationMechanisminIPWorldServiceRealizationforASPServiceSelectionServiceManagementforENUMUsersWeb-basedServiceManagementforENUMUsersServiceAppliedDynamicallyENUM-enabledOpportunitiesASP/ISP/WISPNetworkserviceprovidersindependentADSL+WLANastheaccessnetworkVoIPtoacquireuserbaseTwokeyenablers:VoIPphonenumbers,IPtelephonyvoicequalitycriteria(ClassA,ClassB,ClassC)ENUM-enabledIPservicestogeneraterevenueCellularoperatorsTocreatetime-to-marketcost-effectivenicheapplicationswithIP/ENUM-enabledapplicationservers(e.g.moviestarschattingrooms,MMS)FixednetworkoperatorswholacksfirstmilesADSL/Cable+VoIPastheaccessnetworkDOC/NTIABacksENUMNTIA(NationalTelecommunications&InformationAdministration),USDepartmentofCommerce“……BecauseofthepotentialbenefitsofENUM,……(NTIA)believesthattheUnitedS,……””LetterfromAssistantSecretaryofCommerceNancyJ.VictorytoAmbassadorDavidA.Cross,USCoordinatorforInternationalCommunicationsandInformationPolicy,USDepartmentofState,Feb.12,2003ENUM-EnabledE-Mailisthe1stServicetobePromotedbyDOCviaENUMmechanismWashingtonPostReportVoIPPhoneNumbers&ENUMPSTN/CellularDSLAMSGatewayCallAgent/SoftswitchISP/ASP(Yahoo!BB)VoIPTAASDL+VoIP+WLANasTheFirstMileplusENUM-enabledIPservicesVoIP/ENUMphonenumbersENUMServer+ApplicationServerIPPhoneSoftphoneIP-PBXConclusionsENUMisAnImportantEnablingTechnologytoSpeed-upIP/PSTNConvergenceENUMLetUsersUseTelephoneNumberinIPNetworkENUMMakeUserstoManageDifferentIPServicesUniformlyENUMWillBringHugeImpacttoPSTNandIPNetworksWLAN應應用用服服務務的的發發展展趨趨勢勢3Gvs.WLAN3Gwireless(UMTS)UbiquitouscoverageHighmobilityDedicatedspectrumQualityofService(QoS)VoicesupportHighcost2Mb/sindoor,384kb/soutdoorpedestrian,144kb/svehicularWLAN(IEEE802.11x)Dataratesupto54Mb/sLowinfrastructurecostFreespectrumLimitedcoverageareaLowmobilitySubjecttointerferenceWhoInstallWLAN?CellularOperatorOwnedWLANPublicWLANNetworksWISP,PublicWLANOperators,…PrivateOwnedbutforPublicAccessCommunity/Building/Airport/……WLANLocalServiceaswellasInternetServicesHowaboutInterworking?EnterpriseWLANPrimarilyforInternalAccessHowaboutInterworking?WhatWLANfor?CableReplacementHome/EnterpriseWLANInternet/IntranetServicesInternetServicesPublicWLANWISP;CellularOperatorsCurrently,InternetServiceistheMajorApplicationforWLANHighBandwidthNottheKeyPointHighBandwidthApplicationsforMobileUsers?ForNewApplications?WhatNewWLANSpecificContents/Applications?OtherThanWiredBroadbandInternetServices?Mobility&CableReplacementHowWLANOperate?PrivateWLANOwnersDedicatedforInternalInternet/IntranetAccessAlliedwithPublicWLANServiceProviders?PublicWLANOwnersWISP:WLANInternetServiceProvidersVeryHardtoBeProfitableasIndependentWISPRoaming,Billing/Charging,CustomerBase,……IssuesCellularOwnersSupplementarytoGPRS/3GCellularNetworkTreatWLANlikeGPRStoGSMHelptoMakeMoneyfromGSMExtendServicestoWLANWLANandCellularOperatorsOperatorsInherentAdvantagesExtensiveRoamingAgreements/UnifiedBillingSecureAuthenticationSystemAbilitytoProvideGPRS/3G/CDMA2000-to-WLANRoamingLargePotentialUsersBase(GSM/GPRSUsers)MobileOperatorsareLeadingWLANServiceWorldwideexceptinU.S.HowtoBuildWLANNetworkforCellularOperators?SelfInstallationWholly??HardtoBuildtoHaveGoodCoverageAlliancewithAnyotherWLANsHomeWLANEnterpriseWLANPublicWLANLeverageHomeWLANCapabilityNetworkingHomeWLANAlliancewithPrivateWLANsImportantWaytoBuildUbiquitousPublicWLANEnterprise/CampusWLANsRoamingwithOtherPublicWLANsRoamingServiceAggregatorAlliancewithPrivateWLANsPrivateWLANParasiticGridDeploymentandOwnershipIndividual(HomeWLAN)/Community/Enterprise/Organization/UniversityDeployedforPrivateUseOriginallyPrivateAAAMechanismforItselfUsersMotivationtoAllytoUbiquitousPublicWLANtoProvidePublicWLAN/InternetServiceAccessCapabilityisUsuallyLargeEnoughBenefitfromtheAllianceSecurityIssueMustbeSolvedAlliancewithPrivateWLANsWLANAllianceAlliancePrivateWLANPrivateUsersProfileIntranetPrivateAAAWLANUsersProfileInternetGSM/GPRSAuthentication&BillingSystemVisitorsAccessingPublicWLANPrivateUsersWLANandCellularOperatorsSwisscom(Switzerland)PWLANServiceLaunchedDec.2002100HotspotsPrepaidUS$146for436Hours“Indirect”SIM-basedAuthenticationOrangeSwitzerlandTrialPureSIM-basedWLANAuthenticationTogewaNet’sWeRoamSolutionPureSIM-basedAuthenticationRoamingbetweenPWLANOperatorsHavetoInstallS/WinAccessServerandEnd-userDevice(withUSBSIMReader)WeRoamalsoSupportPureRADIUS-basedSystem(withoutSIMCard)WLANandCellularOperatorsOrangeFranceWi-FicomplementarytoGPRSandUMTSWi-Fi:LaptopsandPDAsUMTS:HandsetsStrategy:IntegratedCellular/PWLANServicesServicesandAuthenticationPrepaid:RADIUSSubscription:SIM-based400(large)/1000-2000(small)Hotspots,End2003Two-tierDeploymentStrategyOwnandOperateMajorSitesEncourageSmallSitesTurkeyHotspotService1000Installation+160OperationCost(Euro)Orangetakecareofvirtuallyallaspectsofhotspotservicesandoffersitesanundisclosedcommissiononsalesofprepaidcards.WLAN/CellularIntegrationTightCouplingWLANEmulateasCellularAccessNetwork(e.g.RNC)ProFullyLeverageCellularCapabilitySeamlessServiceContinuityMobilityManagementConBigChangeonWLANSystemGPRSCNforWLANSGSNGGSNGPRS/3GAccessNetworkWLANGPRS/3GCoreNetworkHLR/HSSInternetWLAN/CellularIntegrationLooseCouplingSeparateDataandSignalingProSimpletoImplementWLAN/InternetAccessisSimpleandDirectConSession/ServiceContinuityMobility/ChargingIntegration/ServiceExtensionSGSNGGSNGPRS/3GAccessNetworkWLANGPRS/3GCoreNetworkHLR/HSSInternetCellular/WLANIntegrationMobileDevicesAccessNetworkServicesInternetFTP/Telent/…VideoStreaming…MMSVoIPE-mail…CellularVoiceSMSGPRS…HLRAuthentication&BillingSystemInternet(ISP)CellularOperatorCellular/WLANCommonServicesCellularServicesWLANServicesWLANBSAPBSAPRoamingMobileDevicesCellularGSM/GPRS,PHSHandsetAccessCellularServiceOnlyCellular/WLANDualModeDevicesWithCellular/WLANAccessCapability,e.g.SmartPhone,PDA,……ChallengeIssuesPowerManagementWhatApplicationsHand-over?…SIM-EquippedWLANDevicesAccessingWLANviaCellularAuthentication&BillingE.g.Notebook,PC,…AccessandNetworkingWLANAccessCoverage/Mobility/Security/…RoamingamongPublicWLANsCellular/WLANNetworkingIdenticalAuthentication&BillingSystemSIM-based(HLR)AuthenticationExistingCellularBillingSystemServiceSupportingNewServiceoverIntegratedCellular/WLANNetworksNegotiationbetweenCellularandWLANNetworksReal-timeHandoverServicesforCellular/WLANCommonServicestobothCellularandWLANMMSCellularServiceExtensiontoCellular/WLANIntegrationMMSto/fromPDA,NB,PConWLANIMMMSInterworkingVoIPNewServicesCreatedforCellular/WLANCellularVoiceVoIPCellularCallVoIPtoPDA,NB,HomeGWLocation-BasedServiceWLANSpecificServicesExistingInternetServiceNewServiceSpecifictoWLANUsersVideoStreaming?AnyOthers?3GPPInterworkingScenariosScenario1OneSubscriptionCommonBillingandCustomerCaretoCustomersNoRealInterworking%WLAN&GPRSNetworksScenario2Cellular-basedAccessControlandChargingSIM-BasedAuthenticationEnableWLANIPNetworkAccessforGPRSUsersScenario3CellularServiceExtensiontoWLANGPRSServicestoWLANWAP,IPMultimedia,Location-based,InstantMessagingServices,……etc.NoServiceContinuityacrossGPRSandWLANNetworks3GPPInterworkingScenariosScenario4ServiceContinuity(Loose)`AccessedServicesKeepContinuedwhenCrossingtheNetworksHandover,QoSChange,…ServicemayTerminateafterHandovertoWLANDuetoDifferentServiceRequirementsinDifferentNetworksScenario5SeamlessServices(Stringent)SeamlessServiceContinuityUsersNoticeLittleDifferenceswhenCrossingNetworksScenario63GPPCSServicetoWLANE.g.VoicecalltoWLAN(VoIP)ImplementationofIntegrationAAAProxyAPAPMEASCGSMSCInternetEnterpriseWLANHomePLMNGTP’RadiusRadiusEAPOLShortmessageHTTPServer(1)輸入phonenumber(2)產生OTP(3)SMSwithOTP(4)輸入OTPOne-TimePasswordImplementationofIntegrationSIM-BasedAuthenticationServerSeamlesslyIntegrateWLANwithCellularNetworksAuthenticationandBillingSolutionsforSystemswith/without802.1xSupportingWLANDHCP/NAT/GWInternetEnterpriseAAAAAAProxyASBillingSystemHLR/AucHomePLMNGrRadiusFTPMEI