,3GPP IP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会议北京2003.8.27-29来源：冯 勤西门子公司,内容,IMS概述 3GPP组织结构 IMS Release 5规范 IMS Release 6研究 总结,2,无线通信技术委员会第一次全会 WG2#1会议 2003.8.27-29, 2020/8/2,3GPP Release 99 网络结构,PSTN/ISDN,Radio Access Network,InterworkedNetwork,GSM Base Station System,BTS,BSC,PSTN/ISDN,Circuit Switched (CS) domain,otherPLMN,A,SCP,HLR,CAP,Core Network,Gb,GPRS backbone IP transport,Packet Switched (PS) domain,GGSN,Gn,Internet Intranet,MSC-VLR,SGSN,G-MSC,MAP,MAP,MAP,CAP,SMS SC,Gp,Gi,3,无线通信技术委员会第一次全会 WG2#1会议 2003.8.27-29, 2020/8/2,3GPP Release 4 电路交换域中实现呼叫控制与传输的分离,IP or ATM transport,Access Network,InterworkedNetwork,PSTN/ISDN,Circuit Switched (CS) domain,otherPLMN,SCP,HLR,Core Network,MSCserver,NodeB,RNC,UTRAN,Iu CS,G-MSC server,BICC,MAP,CAP,MGW,CS-MGW,H.248 / MEGACO based,H.248 / MEGACO based,GSM Base Station System,BTS,BSC,A,4,无线通信技术委员会第一次全会 WG2#1会议 2003.8.27-29, 2020/8/2,3GPP Release 5 分组交换域结构,Internet,Access Network,InterworkedNetwork,GSM BSS,BTS,BSC,PSTN/ISDN,Gb/Iu PS,services Stage 1 IMS Stage-2/3 3GPP TS 23.228: IP Multimedia Subsystem (IMS); Stage 2 3GPP TS 24.229: IP Multimedia Call Control Protocol based on SIP and SDP; Stage 3 3GPP TS 29.228: IP Multimedia (IM) Subsystem Cx Interface; Signalling flows and message contents 3GPP TS 29.229: Cx Interface based on the Diameter protocol; Protocol details Others are TS 23.218, 29.229, 29.328, 29.329,23,无线通信技术委员会第一次全会 WG2#1会议 2003.8.27-29, 2020/8/2,IMS Release 5规范（续）,3GPP requirements and architecture 3GPP TS 23.002, 23.003, 23.008, 23.221, 27.060 3GPP QoS management and Service Based Local Policy for IMS 3GPP TS 23.207, 29.207, 29.208 3GPP Charging and Billing for IMS 3GPP TS 32.200, 32.225 3GPP Security for IMS 3GPP TS 33.203, 33.210 Signalling Flows for IMS 3GPP TS 24.228: Signalling flows for the IP multimedia call control based on SIP and SDP; Stage 3 CAMEL Support for IMS 3GPP TS 23.278, 29.278,24,无线通信技术委员会第一次全会 WG2#1会议 2003.8.27-29, 2020/8/2,Release 5 IMS规范状态,All specifications “frozen” as of September 2002 Support for basic IMS operation Support for various SIP methods including REGISTER, INVITE, UPDATE, SUBSCRIBE/NOTIFY, etc. Support for fundamental capabilities including Authentication/Authorization, MO/MT sessions, Service Based Local Policy, Charging, Security, etc. Not complete in areas of Interworking with PSTN/Internet, MGW/MRFP control and some others. Level of Change Requests Low for most as of January 2003 Moderate activity in IMS Charging Stage-3 in March 2003 Still expect high activity in IMS SIP Stage-3 till June 2003,25,无线通信技术委员会第一次全会 WG2#1会议 2003.8.27-29, 2020/8/2,内容,IMS概述 3GPP组织结构 IMS Release 5规范 IMS Release 6研究 总结,26,无线通信技术委员会第一次全会 WG2#1会议 2003.8.27-29, 2020/8/2,IMS Release 6研究,Interoperability and Commonality support for use of the IMS core by other access technologies IMS Local Services support for access to services in visited network IMS to PS Interworking support for interworking with IP endpoints including IPv4/IPv6 interworking IMS to CS Interworking support for SIP/ISUP interworking and CS roaming scenarios IMS Conferencing support for IMS based conference provision and control,27,无线通信技术委员会第一次全会 WG2#1会议 2003.8.27-29, 2020/8/2,IMS Release 6研究（续）,SIP Capabilities Enhancements support for enhanced SIP capabilities such as forking QoS and Service Based Local Policy Enhancements support for Gq interface and non-IMS applications WLAN Interworking support for WLAN Presence Capability support for presence Generic User Profile support for user data management,28,无线通信技术委员会第一次全会 WG2#1会议 2003.8.27-29, 2020/8/2,IMS Release 6研究状态,Stage-1 CRs mostly complete (SA1) Initial work on IMS Subscriptions and Access Scenarios Stage-2 Documents or CRs in progress (SA2) Interoperability & commonality 23.228 re-org agreed, additional work on TR in progress (June) Some CRs received on local services, conferencing and SIP enhancements (June) In particular: new Ut Reference Point between UE and Application Server for data management (Buddy list etc) QoS and SBLP study in progress, CRs later (Sept.) Presence capability (mostly stable) Generic User Profile (June) WLAN Interworking (June),29,无线通信技术委员会第一次全会 WG2#1会议 2003.8.27-29, 2020/8/2,IMS Release 6研究状态（续）,Stage-3 Documents or CRs (some) waiting for Stage-2 stability IMS Conferencing started, Presence in progress (CN1) CS and PS interworking in progress (CN3) MGCF-MGW, MRFC-MRFP interfaces in progress (CN4) Work plan currently targeted for freeze in 12/2003 (optimistic),30,无线通信技术委员会第一次全会 WG2#1会议 2003.8.27-29, 2020/8/2,内容,IMS概述 3GPP组织结构 IMS Release 5规范 IMS Release 6研究 总结,31,无线通信技术委员会第一次全会 WG2#1会议 2003.8.27-29, 2020/8/2,总结,IMS is a Multimedia Control / Call Control Service in the PS domain It provides an infrastructure for conversational and non-conversational IP multimedia services. It is designed access independent and based on IETF protocols. It is a step towards an All IP Network,32,无线通信技术委员会第一次全会