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Beyond IMT-2000: Next Generation Converged Networks

Beyond IMT-2000: Next Generation Converged Networks. John Visser, P.Eng. Sr. Mgr., International Network Standards 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.

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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. Sr. Mgr., International Network Standards 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 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  2. Wireless Vision (I): Connectivity • The future of wireless is one in which networks will interconnect people and machines 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. 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 ‘layers’ of access 28 Apr - 1 May 2003 GSC-8 (Ottawa)

  6. 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)

  7. 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)

  8. 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)

  9. 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)

  10. 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)

  11. 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)

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