Evolving IMT-2000 Standards

1. Evolving IMT-2000 Standards John Visser Phone: +1 613-763-7028 Fax: +1 613-765-6257 Mobile: +1 613-276-6096 Email: jvisser@nortelnetworks.com GSC-9 Seoul, Korea

2. IMT-2000 Revolution is Underway • Mobile overtakes fixed on a global basis Source: http://www.itu.int/osg/spu/spunews/2003/flash/september.html GSC-9 Seoul, Korea

3. IMT-2000 Revolution is Underway • Strong advantages over first building ubiquitous fixed infrastructure in developing markets Source: http://www.itu.int/osg/spu/spunews/2003/flash/september.html GSC-9 Seoul, Korea

4. What comes next? • Alternatives: • Could just focus only on mobile networks and how they evolve (needs to be done anyway) • Could look just at the integration of fixed and mobile networks (will happen anyway) • Should look at the general case: convergence of traditional fixed networks, mobile networks, information technology and broadcast GSC-9 Seoul, Korea

5. End Objective • Provide the best possible suite of services and capabilities to end users in a seamless and effortless manner • as straightforward as plugging an appliance into an electrical outlet? • The right standards framework and the right standards within that framework will be essential Graphics from: http://www.goinginstyle.com/gis/body_category.asp?dept_id=2 GSC-9 Seoul, Korea

6. 4G? • Many talk very easily about “4G” • everyone’s Marketing Dept. touts “4G” products • Reality: • a continuum of capabilities which extend and enhance 3G, expected to include: • higher data rates (including WLAN integration) • improved roaming • true inter-system mobility management GSC-9 Seoul, Korea

7. Vehicle Walk Outside Campus Fixed Walk Within Campus Fixed/Desktop Wireless Landscape Wireless Wide Area Network (WWAN) • Metro/Geographical area • “Always On” Services • Ubiquitous public connectivity with private virtual networks Wireless Local Area Network (WLAN) • Public or Private Site or Campus • Enterprise / premises application voice & data network extension • Nomadic / “pull” services • Non-licensed spectrum Mobility CDMA2000 1X GSM/GPRS >3G CDMA2000 1X EV-DO & UMTS DECT HiperLAN2 802.11a, g 802.11b Bluetooth LAN 0.1 1 10 100 Mbps GSC-9 Seoul, Korea

8. Mobile PDA Laptop User’s Perspective • 1 user: 1 terminal • 1 user: n terminals • n users: 1 terminal Expectation Mobile Increasing Mobility Reality Increasing service content: voice to multimedia GSC-9 Seoul, Korea

9. Operator’s Landscape • “Fast” mobility: mobile terminal with seamless voice, low speed data hand-off • “Nomadic” mobility: session in one hot spot; move between adjacent hot spots • Ad hoc networks: use spare resources of neighbours for dynamic connectivity • Terminal mobility: plug into any access • User mobility: use any terminal GSC-9 Seoul, Korea

10. Beyond IMT-2000 • Heterogeneity of installed base means capabilities will not be uniformly available • “4G” will not be uniformly deployed, so: • need to characterize the local capabilities • terminals need to adapt to local environment • Much is possible but ideals that could be achieved must be tempered by the reality of what can be paid for GSC-9 Seoul, Korea

11. W+/W- Integration • How should this be approached? • from a fixed network perspective: add functions to also support mobile users? • from a wireless network perspective: what is needed to also support fixed users? • Points of view • fixed network specialists tend to start from first • wireless network specialists tend to start from second GSC-9 Seoul, Korea

12. W+/W- Integration: perspective change? • Are we just (re-)using some wireless network solutions to provide similar services in a similar way to fixed users? • Or, are we missing a key element? • wireless networks have long been treated as a means of access to fixed network services • now starting to see fixed networks being used as a means of access to wireless networks • Are the roles reversing? or just equalizing? GSC-9 Seoul, Korea

13. W+/W- Convergence Underway • ITU-T: • Rec. Q.1761 “Principles and Requirements for Convergence of Fixed and Existing IMT-2000 Systems” • Q.F/13 “NGN mobility and fixed-mobile convergence” • Q.K/16 “Mobility for Multimedia Systems and Services” • Multiple Qs in SSG • ETSI TISPAN: applying 3GPP Rel. 6 IMS • Others certainly working subject GSC-9 Seoul, Korea

14. WWAN and WLAN Integration • Concept: based on what user is doing and on availability of local resources, switch seamlessly between WLAN and WWAN to optimize both user experience and resource utilization • users demanding high data rates more likely to be nomadic: use WLAN where available • voice users could be served by either: could use WLAN to conserve WWAN resources GSC-9 Seoul, Korea

15. WLAN and Fixed Integration • Mesh networks • utilize concept to optimize backhaul • Ad hoc networks • minimize infrastructure requirements for low user density or in an emergency where infrastructure damaged or destroyed GSC-9 Seoul, Korea

16. Application Servers Intelligent Infrastructure CSCF/SCM Packet Based PDF Internet Intranet HLR/HSS Call Server MGCF GGSN PDG Call Server Call Server MGW PDSN HA PDF Internet Intranet Internet Intranet HLR/HSS PSTN Call Server MGCF Call Server MGCF SGSN GGSN R4 BICN PDG PDG MGW MGW PDSN PDSN HA PSTN PSTN SGSN WLAN GSM UMTS DSL/Cable CDMA R4 BICN Access Independence GSM UMTS WLAN DSL/Cable CDMA Convergence This animated chart is provided as three discrete charts at the end of this package. Application Servers Infrastructure Services Architectural GSC-9 Seoul, Korea

17. NGN • General case: convergence of fixed and mobile networks, data and broadcast • “Global Information Infrastructure” • GII now referred to as “Next Generation Network” • Do standards for IMT-2000 and “systems beyond” become NGN standards? GSC-9 Seoul, Korea

18. NEAR FUTURE Consumer Entertainment GII Telecommunications AIM Consumer Entertainment Computer information GII Telecommunications Computer information GII is all about convergence Internet, Broadcasting, Telephony, ... The NGN 2004 Project will establish implementation guidelines and standards for the realization of Next Generation Networks based on GII concepts. TODAY Consumer Entertainment GII Telecommunications Computer information • Y-series Recommendations: GII • Per Fig. 5-1/Y.110 – GII is at the centre of the threefold industry convergence GSC-9 Seoul, Korea

19. Conclusion • IMT-2000 and systems beyond: • must ensure we address convergence starting from the right perspective • mobility is an integral part of and the starting point for NGN • studies require identification and review of pre-conceptions and assumptions to test their validity GSC-9 Seoul, Korea

20. Call Server Call Server PDF Internet Intranet Internet Intranet HLR/HSS Call Server MGCF Call Server MGCF GGSN PDG PDG MGW MGW PDSN PDSN HA PSTN PSTN SGSN R4 BICN GSM UMTS WLAN DSL/Cable CDMA Convergence - Non-animated - Step 1 Architectural GSC-9 Seoul, Korea

21. Call Server Call Server PDF Internet Intranet Internet Intranet HLR/HSS Call Server MGCF Call Server MGCF GGSN PDG PDG MGW MGW PDSN PDSN HA PSTN PSTN SGSN R4 BICN GSM UMTS WLAN DSL/Cable CDMA Convergence - Non-animated - Step 2 Application Servers Services Architectural GSC-9 Seoul, Korea

22. Application Servers Intelligent Infrastructure CSCF/SCM Packet Based PDF Internet Intranet HLR/HSS Call Server MGCF GGSN PDG MGW PDSN HA PSTN SGSN R4 BICN WLAN GSM UMTS DSL/Cable CDMA Access Independence Convergence - Non-animated - Step 3 Infrastructure Services Architectural GSC-9 Seoul, Korea