1. July 2000
doc.: IEEE /192
July 2000
One Global Standard for Wireless LANs? ETSI/IEEE/MMAC Convergence July Lucent Technologies Harold Teunissen, Jan Kruys
Harold Teunissen & Jan Kruys, Lucent Technologies
Jan Kruys, Lucent Technologies

2. 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

3. Summary User view Integrator’s view Commercial view Regulatory view
July 2000
doc.: IEEE /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

4. July 2000
doc.: IEEE /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

5. Integrator’s view I want one device for Wireless LAN functions
July 2000
doc.: IEEE /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

6. Commercial view One standard is preferable No installed base yet
July 2000
doc.: IEEE /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

7. July 2000
doc.: IEEE /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 as well as in the ITU-R preparation processes
Harold Teunissen & Jan Kruys, Lucent Technologies
Jan Kruys, Lucent Technologies

8. History 802.11 HIPERLAN/2 MMAC considers both approaches
July 2000
doc.: IEEE /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

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

10. Essential Requirements
July 2000
doc.: IEEE /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

11. July 2000
doc.: IEEE /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

12. July 2000
doc.: IEEE /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