3GPP IP多媒体子系统(IMS)标准化介绍 （可编辑）.doc

3GPP IP多媒体子系统(IMS)标准化介绍_（可编辑）.doc3GPPIP多媒体子系统(IMS)标准化介绍无线通信技术委员会第一次全会WG2#1会议北京20033></a>.-29来源:冯勤西门子公司无线通信技术委员会第一次全会WG2#1会议29内容IMS概述3GPP组织结构IMSRelease5规范IMSRelease6研究总结IMS无线通信技术委员会第一次全会WG2#1会议293GPPRelease99网络结构PSTN/workGSMBaseStationSystemBTSBSCPSTN/ISDNCircuitSwitched(CS)workGbGPRSbackboneIPtransportPacketSwitched(PS)MSC-VLRSGSNG-workNodeBRNCluPSluCS无线通信技术委员会第一次全会WG2#1会议293GPPRelease4-workPSTN/ISDNCircuitSwitched(CS)workMSCserverNodeBRNCUTRANluCSG-MAPCAPMGWCS-/MEGACObasedGSMBaseStationSystemBTSBSCA无线通信技术委员会第一次全会WG2#1会议293GPPRelease5-workGSMBSSBTSBSCPSTN/ISDNGb/luPSservices&amp;(PS)domainGGSN3G-esswithmobilityservices&amp;applicationsCircuitSwitched(CS)domain无线通信技术委员会第一次全会WG2#1会议293GPPRelease5-分组交换域结构(分层)worksUTRANIN/CAMEL,OSA/Parlay,SIPapplications3G・GGSN3G・worksIPMultimediaSubsystemDatabasesHSSPacketSwitchedDomainPOTS/ISDNTDMIPWeb/munication(IMS)esswithoutIMS无线通信技术委员会第一次全会WG2#1会议29IP多媒体子系统(IMS)TheIPMultimediaSubsystem(IMS)worksontopoftheIPbearerprovidedbyGPRSineludesfunctionalityforsecurity,charging,roaming,worksExamples:PresenceandMessagingServiceswillbestandardisedviaIMSisbasedonIETFProtocolsSIPandSIPextensionsDiameter,COPS,...无线通信技术委员会第一次全会WG2#1会议29IMS:KeyPrinciplesSIPasthesingle??CallControl"workspecificationsre-essviaWLANwillbedefinedAllowBindingbetweenSIPDialogueandtheGPRSMediaSessionviaGointerfaceinparticularforQoSandCharging无线通信技术委员会第一次全会WG2#1会议29IMSin3GPPRelease5-网络实体和协议CSDomain・or・PSTN・or・Legacy-or-worksSIPTCPUDPHTTPOthersSIPOperator1MRF-CMGCFCxScGrMmMnGcMgBGCFMiGoGmSLFMRF-PMpISCSIPDiameterH248SIPH248COPSSIPDiameterMAPSIPMj••••••ISUPSGWMrCSCFMwBGCFMkOperator2SIPDxSIPShMAP'MGWSGWSIPSIPCAPOSASiIM-SSFOSA-worksTCP/IP/UDP/RTP/...UEUTRANMTTEUuluRGERAN无线通信技术委员会第一次全会WG2#1会议29IMS网络实体CSCF(CallSessionControlFunction)HSS(HomeSubscriberServer)PDF(PolicyDecisionFunction)SLF(SubscriptionLocatorFunction)MRF(MultimediaResourceFunction)BGCF(BreakoutGatewayControlFunction)MGCF(MediaGatewayControlFunction)M