1. doc.: IEEE 802.11-03/533r3 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 1 Proposal for Fast Roam Fast Handoff Study Group Clint Chaplin, Symbol Technologies

2. doc.: IEEE 802.11-03/533r3 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 2 Three Colliding Trends Industry evolving from portable computing to mobile computing Applications starting to demand seamless connectivity (VoIP) More state necessary to set up during association before data communications allowed (QoS, Security)

3. doc.: IEEE 802.11-03/533r3 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 3 Problem Statement Develop a standard to allow fast roaming in a general way that will allow seamless connectivity during a roam that can be extended for future negotiation requirements

4. doc.: IEEE 802.11-03/533r3 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 4 What is Meant by Fast Roam Fast Handoff? The actual process of dropping an association at one AP and making an association at another AP, and setting up the state at the new AP to allow connectivity. Does not cover AP discovery process, nor the process of choosing which AP to roam to (that is TGk). This is for the process after choosing which AP to roam to.

5. doc.: IEEE 802.11-03/533r3 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 5 Possible Solutions 1 Make before break (associate with new AP before dropping association from old AP) Pre-association negotiation (allow handshaking and negotiation before Associate Request/Associate Response) Problem: APs will probably be on different channels

6. doc.: IEEE 802.11-03/533r3 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 6 Possible Solutions 2 11-03-241 Keying for Fast Roaming State handoff between APs using IAPP (push or pull model)

7. doc.: IEEE 802.11-03/533r3 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 7 Possible Overlaps 1 IEEE P802 Handoff Study Group Intended to facilitate fast roaming between heterogeneous networks (e.g. Bluetooth 802.11), and roaming between ESSs. Roaming within an ESS will specifically not be addressed.

8. doc.: IEEE 802.11-03/533r3 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 8 Possible Overlaps 2 IEEE 802.11 TGf Recommended practice, not a standard, and that Task Group is done.

9. doc.: IEEE 802.11-03/533r3 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 9 Possible Overlaps 3 IEEE 802.11 TGi Need a more general purpose mechanism, one that can help QoS and any future needs.

10. doc.: IEEE 802.11-03/533r3 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 10 Possible Overlaps 4 IEEE 802.11 TGk The PAR and preliminary draft are for facilitating measurements of radio resources, especially for fast discovery, and exposing those measurements to the decision makers. The PAR does not cover actual procedures or algorithms for roaming, much less fast roaming.

11. doc.: IEEE 802.11-03/533r3 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 11 PAR and 5 Criteria Straw Man 11-03-461r0-WNG A Possible PAR and Five Criteria for Fast Roaming-Fast Handoff