Doc.: IEEE 802.11-03/533r0 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 1 Proposal for Fast Roam Fast Handoff Study Group Clint Chaplin,

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Presentation transcript:

doc.: IEEE /533r0 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 1 Proposal for Fast Roam Fast Handoff Study Group Clint Chaplin, Symbol Technologies

doc.: IEEE /533r0 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)

doc.: IEEE /533r0 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

doc.: IEEE /533r0 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 4 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

doc.: IEEE /533r0 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 5 Possible Solutions Keying for Fast Roaming State handoff between APs using IAPP (push or pull model)

doc.: IEEE /533r0 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 6 Possible Overlaps 1 IEEE P802 Handoff Study Group intends to develop a roaming solution at the 802 level, more specifically for multi-interfaces devices needing to handoff between interfaces where no procedures for handing off exist, and for handoff within a technology type (say ) but between networks and administrative domains where handoff is not supported within the base standards (e.g. inter-ESS handoff in ). The IEEE P802 Handoff Study Group does not address the more specific issue of fast roaming within an ESS, which this project will address.

doc.: IEEE /533r0 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 7 Possible Overlaps 2 IEEE TGf Recommended practice, not a standard, and that Task Group is done.

doc.: IEEE /533r0 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 8 Possible Overlaps 3 IEEE TGi Need a more general purpose mechanism, one that can help QoS and any future needs.

doc.: IEEE /533r0 Submission July 2003 Clint Chaplin, Symbol TechnologiesSlide 9 PAR and 5 Criteria Straw Man r0-WNG A Possible PAR and Five Criteria for Fast Roaming-Fast Handoff