July 2000 doc IEEE 802 11 00192 One

July 2000 doc. : IEEE 802. 11 -00/192 One Global Standard for Wireless LANs? ETSI/IEEE/MMAC Convergence July 2000 Lucent Technologies Harold Teunissen, Jan Kruys hteunissen@lucent. com Submission 1 Harold Teunissen & Jan Kruys, Lucent Technologies

July 2000 doc. : IEEE 802. 11 -00/192 Main Goals • To present the different views on Wireless LANs • To establish working group to study IEEE/ETSI/MMAC WLAN convergence Addresses • Global standardization for Wireless LANs Submission 2 Harold Teunissen & Jan Kruys, Lucent Technologies

July 2000 doc. : IEEE 802. 11 -00/192 Summary • • User view Integrator’s view Commercial view Regulatory view Technical view Convergence approach How to proceed Submission 3 Harold Teunissen & Jan Kruys, Lucent Technologies

July 2000 doc. : IEEE 802. 11 -00/192 User View • “Wireless LANs are great and 5 GHz stuff is promising but. . . “ – Three products? • IEEE, ETSI, MMAC – With similar services? – Will I need two cards? • “Please keep it simple!” Submission 4 Harold Teunissen & Jan Kruys, Lucent Technologies

July 2000 doc. : IEEE 802. 11 -00/192 Integrator’s view • I want one device for Wireless LAN functions – Integration is costly – maintenance and support of multiple devices is costly • I want smooth migration from 2. 4 to 5 GHz • These standards guys should get their act together and cooperate with their peers worldwide – they did it with the PHY, why not with the MAC too? ? Submission 5 Harold Teunissen & Jan Kruys, Lucent Technologies

July 2000 doc. : IEEE 802. 11 -00/192 Commercial view • One standard is preferable • No installed base yet – no loss of investment by users/customers – level playing field • Slugging it out in the market makes no sense – the resulting confusion will delay acceptance by the public as well by integrators • Convergence is a now or never opportunity Submission 6 Harold Teunissen & Jan Kruys, Lucent Technologies

July 2000 doc. : IEEE 802. 11 -00/192 Regulatory view • The World Radio Conference of 2003 will decide on 5 GHz spectrum for WLANs • Currently the US, Europe and Japan have different perspectives on the need for such spectrum • One standard, supported by the three major WLAN standards bodies will significantly improve the spectrum case and improve the prospects for WRC 2003 - as well as in the ITU-R preparation processes Submission 7 Harold Teunissen & Jan Kruys, Lucent Technologies

July 2000 doc. : IEEE 802. 11 -00/192 History • 802. 11 – medium data rates, – “wireless Ethernet” – different PHY solutions • HIPERLAN/2 – high data rates – “wireless ATM with Qo. S” – single PHY • MMAC considers both approaches Submission 8 Harold Teunissen & Jan Kruys, Lucent Technologies

July 2000 doc. : IEEE 802. 11 -00/192 Major technical differences Submission 9 Harold Teunissen & Jan Kruys, Lucent Technologies

July 2000 doc. : IEEE 802. 11 -00/192 Essential Requirements • • Global usability Broad range of data rates Robustness in contention mode Good Qo. S in centralized mode – Support direct mode with Qo. S • Qo. S and Security that ties in with the IETF Submission 10 Harold Teunissen & Jan Kruys, Lucent Technologies

July 2000 doc. : IEEE 802. 11 -00/192 Convergence approach • The aim should be a single implementation that supports both best effort and other Qo. S modes • Take the best of each standard but assure backward compatibility with current installed base • Address inter-working with other networks - e. g. IMT 2000 • Assure compliance with regional radio regulations and support global spectrum effort • Common Technical and Conformance Test Specifications as basis for ISO standard Submission 11 Harold Teunissen & Jan Kruys, Lucent Technologies

July 2000 doc. : IEEE 802. 11 -00/192 How to proceed • Set up a small study group to analyze and propose a converged model – define a common set of requirements – main proponents of each standard: ETSI/IEEE/MMAC • Report at the next meeting (September 2000) – Direction – Technical Approach – Documentation structure • We have done it with the PHY - we can do it again! Submission 12 Harold Teunissen & Jan Kruys, Lucent Technologies