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NGN Architecture and Release 1 Definition (Agenda Item 4) Dick Knight Richard Brennan Chair TISPAN WG-1 Vice-Chair ETSI TISPAN & Chair TISPAN WG-2 BT Group plc pulver.com dick.rr.knight’bt.com 22-23 June 2004 [email protected] TISPAN-3GPP Workshop - Sophia-Antipolis 1 Agenda 1. Approval of agenda and Documents (s1) 2. Workshop objectives (s1) 3. 3GPP and TISPAN organisation (s1) 4. NGN Architecture & Release 1 definition (s2) 5. IMS architecture and capabilities (s2) 6. Issues related to reuse of IMS for NGN (s3-s4) 7. Support of PSTN/ISDN service emulation (s5) 8. Ongoing activities and Workplan (s5) 9. Future cooperation/interactions (s6) 10. Wrap-up and closure (s6) 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis 2 Fundamentals Advanced Multimedia Services converged fixed/mobile services based on 3GPP IMS Fixed Line Access Support for PSTN/ISDN Replacement existing customers unaffected Extensible for future services 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis 3 Services ALL 3GPP IMS Services Plus Emergency calling (112 etc.) • for all terminals/users Existing PSTN/ISDN services • for legacy only Interoperability with 3GPP IMS Interworking to PSTN/ISDN • both TDM and replacement scenario Future Services e.g. streaming (RTSP) • e.g. Video on Demand, broadcast services 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis 4 System Overview 22-23 June 2004 Access Network Interconnect Customer Terminals and Network Core Network TISPAN-3GPP Workshop - Sophia-Antipolis 5 System Components Customer Networks & Terminals Diverse Customer Networks supporting multiple diverse terminals “shared terminal use” as well as exclusive Access Networks re-using existing deployments • xDS,LWireless Lan, Corporate Lan, cable networks, 3GPP GPRS Core Network IP Based transport network + IMS Interconnect 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis 6 Constraints Existing Customer Networks Hubs, Routers, WLAN Existing Customer Terminals PC’s; PDA’s; Phones; lack of regulation & diversity Access Networks already deployed xDSL, backhaul to ISP’s; V5 fibre Concentrators, multiplexors Core Network 3GPP IMS based, minimal changes Interconnect other NGN; 3GPP IMS; Internet; PSTN/ISDN 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis 7 Requirements Overview 1 All 3GPP IMS services; • extended/adapted for fixed-line terminals; Conversational and non conversational services; Support for existing PSTN/ISDN terminals; • partial or wholesale replacement of existing core infrastructure; Regulatory Requirements • e.g. Emergency calling from any access; Interworking at the NNI; Mobility: nomadicity of users and devices; 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis 8 Requirements Overview 2 Secure and trustworthy environment; Support for a wide range of QoS-enabled services; Managed network • high availability; Flexible framework • service innovation & standardisation minimal; Third party service provider support; Flexibility • to support an ever-increasing variety of terminals with diverse capabilities. 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis 9 Mobility User Mobility Moving to different physical locations and using a terminal Requires unique identity Terminal Mobility the ability to move to different physical locations and provide the user with their services Authentication User Authentication (by core) for services • Identification of user Terminal Authentication (by access network) for connectivity • Device capabilities 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis 10 PSTN/ISDN Replacement Supporting Existing Customers and Equipment including existing access Maximum common equipment PSTN/ISDN Services ONLY But interoperable with IMS (voice) services Interconnect to existing (TDM-based) PSTN/ISDN for all NGN customers (voice only) 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis 11 PSTN/ISDN Service Re-use (PSTN/ISDN Simulation) NGN Customers Existing (similar) services • divert, voice mailbox, “CLI” etc. Not Identical to PSTN Different invocation/ergonomics • To take advantage of new network and terminal capabilities True PSTN/ISDN Services Not available, but interworked. 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis 12 Services & Requirements Service Sets IP Multimedia Services (from 3GPP IMS) PSTN/ISDN Emulation Streaming Services Other Multimedia Services Requirements 22-23 June 2004 Network Attachment & Authentication Resource Control Transport Interconnect TISPAN-3GPP Workshop - Sophia-Antipolis 13 Design Issues Multiple Access Technologies Mobility & Roaming, & Nomadicity Numbering & Addressing Quality of Service (QoS) Emergency Telephone Services (ETS) Lawful Interception Security / Privacy Routing / Path Determination Service Capabilities…. 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis 14 NGN Architectural Concept Applications Other Multimedia Streaming services Access Network Attachment Subsystem IP Multimedia Subsystem PSTN/ISDN Emulation Subsystem Resource Control Subsystem Access Transport Other Networks ) (e.g. PSTN) Core Transport Network IP Network 3GPP IP-CAN 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis 15 TISPAN Release 1: Core IMS Rf/Ro Sh AS Network Attachment Subsystem Dh ISC HSS Cx Cx SLF S-CSCF « Core IMS » Mi Mw/Mk/Mm Mg MRFC Id MGCF Ie MRFP SGF PSTN/ISDN Mn Resource and Admission Control Subsystem 22-23 June 2004 Ic Other IP Networks Mj Mp A-BGF IBCF Mi Gq Gm IWF BGCF Mr P-CSCF Dx I-CSCF Mw Mw UE Ia Rf/Ro Ib Mw If Charging Functions T-MGF IP Transport (Access and Core) TISPAN-3GPP Workshop - Sophia-Antipolis I-BGF 16 Core IMS reuse in NGN Architecture NGN specific Rf /Ro impacted Sh AS Network Attachment Subsystem Dh ISC SIP Cx Rf /Ro Ib SLF S-CSCF « Core IMS » Mi BGCF Mr P-CSCF Mw/Mk/Mm MRFC MGCF Ie Mn Resource and Admission Control Subsystem MRFP A-BGF UE 22-23 June 2004 SGF PSTN/ISDN Mp Ic Id Gq Gm IBCF Mi Mj Mg IWF Ia Other IP Networks H.248 Dx I-CSCF Mw Mw DIAMETER HSS Cx Mw If Charging Functions T-MGF IP Transport (Access and Core) TISPAN-3GPP Workshop - Sophia-Antipolis I-BGF 17