July 2000 doc.: IEEE 802.11-00/192 July 2000 One Global Standard for Wireless LANs? ETSI/IEEE/MMAC Convergence July 2000 Lucent Technologies Harold Teunissen, Jan Kruys hteunissen@lucent.com Harold Teunissen & Jan Kruys, Lucent Technologies Jan Kruys, Lucent Technologies

Main Goals Addresses To present the different views on Wireless LANs July 2000 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 Harold Teunissen & Jan Kruys, Lucent Technologies

Summary User view Integrator’s view Commercial view Regulatory view July 2000 doc.: IEEE 802.11-00/192 July 2000 Summary User view Integrator’s view Commercial view Regulatory view Technical view Convergence approach How to proceed Harold Teunissen & Jan Kruys, Lucent Technologies Jan Kruys, Lucent Technologies

July 2000 doc.: IEEE 802.11-00/192 July 2000 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!” Harold Teunissen & Jan Kruys, Lucent Technologies Jan Kruys, Lucent Technologies

Integrator’s view I want one device for Wireless LAN functions July 2000 doc.: IEEE 802.11-00/192 July 2000 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?? Harold Teunissen & Jan Kruys, Lucent Technologies Jan Kruys, Lucent Technologies

Commercial view One standard is preferable No installed base yet July 2000 doc.: IEEE 802.11-00/192 July 2000 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 Harold Teunissen & Jan Kruys, Lucent Technologies Jan Kruys, Lucent Technologies

July 2000 doc.: IEEE 802.11-00/192 July 2000 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 Harold Teunissen & Jan Kruys, Lucent Technologies Jan Kruys, Lucent Technologies

History 802.11 HIPERLAN/2 MMAC considers both approaches July 2000 doc.: IEEE 802.11-00/192 July 2000 History 802.11 medium data rates, “wireless Ethernet” different PHY solutions HIPERLAN/2 high data rates “wireless ATM with QoS” single PHY MMAC considers both approaches Harold Teunissen & Jan Kruys, Lucent Technologies Jan Kruys, Lucent Technologies

Major technical differences July 2000 doc.: IEEE 802.11-00/192 July 2000 Major technical differences Harold Teunissen & Jan Kruys, Lucent Technologies Jan Kruys, Lucent Technologies

Essential Requirements July 2000 doc.: IEEE 802.11-00/192 July 2000 Essential Requirements Global usability Broad range of data rates Robustness in contention mode Good QoS in centralized mode Support direct mode with QoS QoS and Security that ties in with the IETF Harold Teunissen & Jan Kruys, Lucent Technologies Jan Kruys, Lucent Technologies

July 2000 doc.: IEEE 802.11-00/192 July 2000 Convergence approach The aim should be a single implementation that supports both best effort and other QoS 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 Harold Teunissen & Jan Kruys, Lucent Technologies Jan Kruys, Lucent Technologies

July 2000 doc.: IEEE 802.11-00/192 July 2000 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! Harold Teunissen & Jan Kruys, Lucent Technologies Jan Kruys, Lucent Technologies