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SG-13 / SSG Information Sharing Session Geneva - 05 November 2002

SG-13 / SSG Information Sharing Session Geneva - 05 November 2002. Overview of Q.6/SSG: Harmonization of evolving IMT-2000 systems Rapporteur: Bruce Pettitt (Canada). Contact Information: Bruce Pettitt Industry Canada / Wave Equation Limited Tel: +1 613 236 8563 pettitt@sympatico.ca.

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SG-13 / SSG Information Sharing Session Geneva - 05 November 2002

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  1. SG-13 / SSG Information Sharing SessionGeneva - 05 November 2002 Overview of Q.6/SSG: Harmonization of evolving IMT-2000 systems Rapporteur: Bruce Pettitt (Canada) Contact Information: Bruce Pettitt Industry Canada / Wave Equation Limited Tel: +1 613 236 8563 pettitt@sympatico.ca

  2. Outline • Harmonization studies in the SSG • Linkages with other bodies - Collaboration within ITU - Linkages outside ITU • Current status of Q.6/SSG activity • Next steps

  3. Third Generation Mobile Systems IMT-2000 concept developed in the ITU • IMT-2000 is the ITU term used in a set of ITU Recommendations which describe “International Mobile Telecommunications-2000” • a fundamental concept behind IMT-2000 is to provide users with communications “anywhere, anytime” 3G Partnership Projects • co-ordinate development of detailed regional/national specifications • 3rd Generation Partnership Project - 3GPP • SDO partners are ARIB, CWTS, ETSI, T1, TTA, TTC • development of GSM evolved UMTS core network with UTRAN access network • Third Generation Partnership Project 2 - 3GPP2 • SDO partners are ARIB, CWTS, TIA, TTA, TTC • development of ANSI-41 evolved core network with cdma2000 access network

  4. Q.6/SSG - Harmonization of Evolving IMT-2000 Systems Question 6/SSG asks: • What is needed for harmonization of evolving IMT-2000 systems? • To provide seamless global roaming for IMT-2000 future Capability Set services that will include: • voice, • high speed packet data, • multimedia, and • IP-based services, what are the network solutions that would facilitate harmonization of evolving IMT-2000 systems?

  5. Q.6/SSG - Harmonization of Evolving IMT-2000 Systems Q.6/SSG task objectives include: • establish co-operative relationships- within ITU (ITU-T, ITU-R, ITU-D)- externally with other SDOs, etc. • study existing IMT-2000 systems • identify gaps/areas for harmonization • develop proposals to facilitate harmonization • document results Basic goal of harmonization activity : development of common network solutions based on standardized open interfaces in order to: - facilitate cost-effective IMT-2000 network deployments - stimulate the commercial uptake of IMT-2000 services, and - foster global roaming across all evolving IMT-2000 systems.

  6. Related SSG Study Questions • Question 7/SSG Convergence of Fixed and Existing IMT‑2000 Systems- Rapporteur: Frédéric Delmond (France Telecom) • Question 2/SSGNNI Mobility Management Protocol (Stage 3)- Rapporteur: Jean-Claude Samou (France Telecom) Other presentations today will address Study Questions Q.2/SSG and Q.7/SSG in greater detail.

  7. Related SSG Questions (continued) Question 3/SSG Identification of existing and evolving IMT-2000 systems - Rapporteur: Ilkka Hyvärinen (Nokia Networks, Finland) Rec. Q.1741.1 IMT-2000 References to Release 1999 of GSM evolved UMTS Core Network with UTRAN Access Network * Rec. Q.1741.2 IMT-2000 References to Release 4 of GSM evolved UMTS Core Network with UTRAN Access Network * Rec. Q.1742.1 IMT-2000 References to ANSI-41 evolved Core Network with cdma2000 Access Network * Draft Recommendations approval anticipated by year end 2002.

  8. Related SSG Questions (continued) Question 1/SSG Service and network capability requirements and network architecture - Rapporteur: Ed Chien (USA) Rec. Q.1702 Long-Term Vision of Network Aspects for Systems Beyond IMT-2000 Question 5/SSG To participate in the preparation of a Handbook on IMT-2000 - Rapporteur: Maurice Ghazal (Lebanon) Q.5/SSG is contributing to the network aspects component of the emerging Handbook. Question 4/SSG Interworking functions to be used with existing and evolving IMT-2000 systems[There has been little progress on interworking under Q.4/SSG, partly because of the lack of a Rapporteur.]

  9. Outline • Harmonization studies in the SSG • Linkages with other bodies - Collaboration within ITU - Linkages outside ITU • Current status of Q.6/SSG activity • Next steps

  10. Linkages on Harmonization outside ITU Formal Standards Development Organizations (SDOs) • formal standards are being referenced through SDOs (TIA, ETSI, TTA, etc) • existing relationships with ITU is effective 3G Partnership Projects (3GPP and 3GPP2) • for both 3GPP and 3GPP2 an established relationship exists at the SSG level through the SSG Chairman • relationships are being developed at the working level Internet Engineering Task Force (IETF) • SSG studies may identify new/modified protocol requirements • possible future interaction with IETF on protocol requirements

  11. Collaboration within ITU ITU-T • SG-13: Interaction to ensure consistency with areas under SG-13 responsibilitysuch as NGN (Information sharing in Geneva, November 2002) • SG-11: Similar synergy on NGN studies(There was discussion at the SSG’s Ottawa meeting in May 2002, and a Liaison Statement to SG-11 from Q.7/SSG addressed mobility across fixed and mobile networks) • SG-16: Interaction on Multimedia aspects of mobility studies • SG-12: future interaction likely on Quality-of-Service aspects • SG-2: possible collaboration in areas such as- Numbering/Addressing and Identities - Service descriptions for mobile services (stage 1)

  12. Collaboration within ITU (continued) ITU-D • Coupling through Q.5/SSG on IMT-2000 Handbook • Some direct interaction anticipated ITU-R • ITU-R WP 8F work provides basic background for existing systems(e.g., ITU-R Rec. M.1457 Detailed Specifications of the Radio Interfaces of International Mobile Telecommunications-2000 (IMT‑2000)) • it also provides insight into longer-term “Vision” (for which an indirect coupling exists through Q.1/SSG which studies Service and network capability requirements and network architecture)

  13. Outline • Harmonization studies in the SSG • Linkages with other bodies - Collaboration within ITU - Linkages outside ITU • Current status of Q.6/SSG activity • Next steps

  14. Emerging Q.6/SSG Output Document • Draft is entitled Harmonization of Evolving IMT-2000 Systems • Recently progressed at Joint Rapporteurs' Meeting (JRM)(9-13 September 2002 in Seoul (Korea)) • Anticipated completion in early 2003 • Current contents include: • Needs and opportunity for harmonization • Background on architectures of evolving IMT-2000 systems • survey of related IETF work • identification of commonalities and differences • Note: • The report of the JRM in Seoul and the draft Q.6/SSG output document are contained inTD 14 (WP 3/SSG) and TD 13 (WP 3/SSG) at the SSG meeting in Geneva, November 2002. Other Seoul meeting documents can be found on TIES athttp://ties.itu.int/u/imt2000/imt2000/wp3/q6/0209seoul/TDs/

  15. Reference Model from OHG Workshop The above diagram was developed at an OHG Workshop on IP Core Network Harmonization held in Toronto, April 3-4, 2002. (See TDs GEN/SSG-015, GEN/SSG-016, GEN/SSG-036 from the SSG’s meeting in Ottawa, May 2002)

  16. PSTN Generic All-IP Core Network Architecture Generic All-IP Core Network Architecture Signal Path Authentication Server Service Application Server Bearer Path MediaGateway Control Function Media Gateway I-CSCF Serving CSCF Proxy CSCF Access Network Mobile Station This diagram is based onFigure 1 of the current draft Q.6/SSG output document. CSCF: Call Session Control Function I-CSCF: Interrogating Call Session Control Function PSTN: Public Switched Telephone Network

  17. Items for further study • Impact of studies on: • mobility management • fixed-mobile convergence • inter-working • IP telephony • WLANs • Numbering issues(use of IPv4/v6, ENUM, …) • Security and emergency services aspects • Quality-of-Service issues • Location-based services

  18. Next Steps • More detail on the degree of harmonization of the evolving 3GPP and 3GPP2 systems will be added to the emerging Q.6/SSG output document. • The draft Q.6/SSG output document will be reviewed during this week’s SSG meeting in Geneva. • Further study will be required to finalize this Q.6/SSG work in collaboration with various bodies. • Feedback from Study Group 13 (on NGN and other aspects) will be welcome.

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