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Beyond IMT-2000: Next Generation Converged Networks

Beyond IMT-2000: Next Generation Converged Networks. John Visser, P.Eng. Phone: +1-613-763-7028 Fax: +1-613-765-6257 Mobile: +1-613-276-6096 Email: jvisser@nortelnetworks.com. Two versions: “short” for presentation “long” for off-line review. Wireless Vision (I): Connectivity.

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Beyond IMT-2000: Next Generation Converged Networks

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  1. Beyond IMT-2000:Next Generation Converged Networks John Visser, P.Eng. Phone: +1-613-763-7028 Fax: +1-613-765-6257 Mobile: +1-613-276-6096 Email: jvisser@nortelnetworks.com • Two versions: • “short” for presentation • “long” for off-line review

  2. Wireless Vision (I): Connectivity • The future of wireless is one in whichnetworks will interconnect people andmachines in all combinations • Wireless data networking will have an impact as profound as the Internet had on the wired world • Everyone has been looking for the ‘killer app.’ Some believe it's all about content. But the killer application is connectivity! Content is not king; connectivity is king. 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  3. Wireless Vision (II): revenue from data • It's all about low-price, broadband wireless • Growing number of internet-savvy consumers and business professionals want to be connected wherever they are, without wires • 3G wireless networks are cheaper to operate • Positions operators to reap larger revenue opportunities as data-driven services catch on with consumers and business 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  4. Vehicle Walk Outside Campus Fixed Walk Within Campus Fixed/Desktop The 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 4G CDMA2000 1X EV-DO & UMTS DECT HiperLAN2 802.11a 802.11b Bluetooth LAN 0.1 1 10 100 Mbps 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  5. Exploring the Vision -Disparate networks • Today, there are three disparate networks: • Wireline network • good for voice but not data (carry data by making it look like voice) • Data router network • a "best effort" network which loses about 6% of traffic • OK for data but not for carrier-grade voice • Wireless mobility network • 2G: good for voice • 3G: data oriented, voice capacity improvements 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  6. Types of connections • People-to-people, supporting full mobility • when you call a number, you call a person, not a place • People-to-machine "nomadic" connections • Machine-to-machine sensor connections All will bring data traffic to the packet network and increase the need for network capacity and speed 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  7. Network transition • Wireless transitioning from a voice business to a data business that includes voice • Built on one core packet network and a variety of access methods • Adoption of data services an essential aspect • Mobile access to the network now exceeds fixed access in some 100 countries Wireless voice is today’s reality. Wireless data will be tomorrow's reality. 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  8. Access IndependentWireless Core Network • There will be multiple access technologies: UMTS, CDMA DO/DV, GSM, GPRS, EDGE, 802.11, even the PSTN/ISDN as a “fixed access network” • They will deliver more capacity, improved spectral efficiency, higher speeds • There is no ‘best’ access solution: often the answer will be a hybrid network with several wireless access types providing a choice of access 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  9. Essential network attributes • Attributes of the single packetized network: • voice over IP • universal mobility (presence, location, roaming) • security • “five 9’s” reliability for mission-critical applications • IP services • Must support IP services embedded in the network (VPN, QoS, billing), and enable consumer and business services applications at the edge 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  10. Wireless Data Networking • The real cost efficiencies and personalized service opportunities that will drive the market in say, five years, will evolve from intelligent, all-IP core networking • Broadband radio access and core networking are converging: the industry is evolving to true wireless data networking 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  11. “The Network” ... HLRs/ACs SCPs CCS7 Network MSCs SSPs Fixed Data Access 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  12. MediaGateway ... has morphed, but it is still recognizable! Call Feature Servers MobilityServers Application & Content Servers Legacy Networks Multiple Mobile Access Standards IP Network Fixed MM Access 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  13. WLANs • WLANs are highly-complementary to broader 3G wireless WAN coverage • won't stand alone • an indoor solution to provide high bandwidth data access in nomadic environments • WLAN cannot facilitate the true, ubiquitous 'anywhere, anytime' coverage that consumers have come to expect for wireless voice services 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  14. WLANs • A joint WLAN and WWAN offering can make a lot of business sense for wireless operators • enables high-bandwidth data services to customers to increase overall ARPU • enhance end-user satisfaction and customer loyalty • furthers the 'always-on' lifestyle: where we need to be going • Hurdle for WLAN business model is not CAPEX, but OPEX • deploying WLANs is inexpensive • costs of backhaul and maintenance are challenges: need to bring these costs down 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  15. 50,000 42,000 40,000 30,000 20,000 10,000 2,000 2001 2002 2003 2004 2005 2006 Global Public WLAN Growth Locations Users 5.6M U.S. Public WLAN Users (M) Global Hot Spot Locations 30k Source: Yankee Group 11/02 Source: Instat/MDR 5/02 Public WLAN Service Revenue Growth (USA) 28 Apr - 1 May 2003 GSC-8 (Ottawa) Source: Yankee Group 11/02

  16. Evolution to Wireless Data • State of development of wireline infrastructure: • where quality, high speed, low cost are norms, move to wireless data will come when performance = “desktop” • other markets: users will quickly migrate to wireless data offerings that are better than their current experience • Major reason for penetration variations: cultural • European wireless users tend to be much more mobile than consumers in other parts of the world • Regions with very low wireline penetration: wireless emerging as mainstream form of telephone service • Calling-party-pays model encourages wireless penetration for in-bound calls; called party pays for air time model discourages giving out mobile phone numbers 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  17. Public Access WLANValue Chain Consumer • Marketing, billing • Aggregator WLAN Service Provider WLAN Operator • Access points, gateways, etc. Data Center ISP Backhaul Leased Line Provider Site Leasing “Facility Owner” • WLAN service provider • Wireline ISP • Corporate LAN • ILEC • CLEC • Airport (lounge) • Hotel • Coffee Shop 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  18. Business Scenarios • No Coupling • WLAN service provider and WWAN service provider unrelated • limited end user satisfaction • Loose Coupling • various degrees from minimal (downstream billing integration) to close partnership between WWAN and WLAN service providers • potential for maximum end user satisfaction • Tight Coupling • WWAN and WLAN are same service provider • maximum end user satisfaction 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  19. CS SS7 Public Internet Public Internet Coupling Scenarios HLR MSC SIG BSC RNC BTS Node B Terminals SIG Operator Backbone SGSN GGSN Operator Data Center Access Point Radius/AAA Server WLAN Gateway Terminals Accounting System Tight coupling WLAN Data Center No coupling: this link absent Accounting System Loose coupling 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  20. The PSTN/ISDN as a“Fixed Access Network” • Some markets, especially developing countries, recognize that 3G wireless data will be the future, but the economics are difficult • Where wireline available, want to be able to use the PSTN/ISDN as a “fixed access network” • enables all services except terminal mobility, even when roaming • potential to reduce demand on wireless spectrum • makes wireless more attractive • simultaneous stimulus to PSTN/ISDN • access options include UIM card (suitable terminal), DTMF digits, and WLAN (suitable terminal)! 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  21. Conclusions and Next Steps (I) • Establish open protocols to allow different wireless data networks, devices and applications to interface seamlessly • Consumer adoption of wireless data services depends on a common language so that all devices can and will work with all applications on all networks • ITU-T, OMA and 3GPPs working in this direction • Access independent core network essential to long term subscriber satisfaction, operator revenues, infrastructure purchases • address inter-system roaming, mobility management, authentication • more cooperation between radio access and core network 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  22. Conclusions and Next Steps (II) • Stop playing CDMA vs. GSM vs. UMTS • consumers see services, not technologies • each standard has its merits depending on individual operator needs • argument about which is "best" is irrelevant • Networks must recognize the wireless access reality • wireless voice access today; wireless data tomorrow • Drive consumer adoption of data services, regardless of access technology, to tap into this enormous new consumer market • consumers pay for services, not technologies 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  23. Basic Terminal PDA Terminal Audio/Visual Terminal IMT-2000 and Beyond... Global Satellite Suburban Urban In-Building Picocell Microcell Macrocell Realizing the IMT-2000 Visionrequires a global effort. 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  24. Thank you! 28 Apr - 1 May 2003 GSC-8 (Ottawa)

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