September 22, 2005David Hunter Panasonic IEEE MEDIA INDEPENDENT HANDOVER DCN: Title: Liaison Report – Work Related to Date Submitted: September 22, 2005 Presented at IEEE session in Garden Grove Authors or Source(s): David Hunter Abstract: r is developing the amendment for Fast BSS Transitions. This amendment will become a requirement for operations with

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September 22, 2005David Hunter Panasonic Liaison Report IEEE work related to David Hunter Panasonic

September 22, 2005David Hunter Panasonic r – Fast BSS Transition –Between BSSes within the same ESS –Interacts with both k (esp. neighbor report) and w u – Interworking with External Networks –MAC changes to accommodate, among others, –Interacts with both k and r v – Wireless Network Management –Management protocol additions –AP-AP negotiations; load balancing; additional access controls w – Protecting Management Frames –Security for management frames, including broadcast frames –Interacts with both r and u Groups Related to (the usual suspects)

September 22, 2005David Hunter Panasonic r – Fast BSS Transition –I'll cover some points in the following slides u – Interworking with External Networks –We had one joint session this meeting –Ill only add one note at the end of this presentation v – Wireless Network Management –Completing objectives list this week: Including location support, reports for degradation due to multi-radios, multi-antenna management –Issuing initial call for proposals w – Protecting Management Frames –Reviewing initial proposals Group Status

September 22, 2005David Hunter Panasonic r Background Fast Transition is an optional capability that APs and STAs may have –TAP= Fast Transition Enabled AP –TSTA= Fast Transition Enabled STA Five stages of BSS – BSS transition: –Scanning – active or passive for other APs in the area –Authentication with a (one or more) target AP –Re-association to establish connection at target AP Have a connection, but still can't *DO* anything… –PTK derivation – 4-way handshake of session keys Based on 802.1x authentication –QoS admission control to re-establish QoS streams

September 22, 2005David Hunter Panasonic r Current Work No longer looking for proposals Debate settled this week: OTA pre-reservations –DS is planned to be the major resource negotiation path –So OTA seems to be an additional nicety –Vote was unanimous to keep OTA pre-reservations Key point to : TGr is completing its detail phase –Except for minor changes, things are basically set in stone now Current draft –P802.11r-D0.08.pdf – but D0.09 will be out in a few days –Not in 802wirelessworld.com, but in Members Area –There will be a 15-day internal call for comments and using the bi-weekly Wednesday teleconferences (Oct 12 th +) to work out changes –Then in November will go to full WG Letter Ballot

September 22, 2005David Hunter Panasonic r Current Status Mobility Domain –Mobility Domain is the set of all other APs to which a STA can roam right now –Last week there were Resource Mobility Domains and Security Mobility Domains –These are now combined into a single Mobility Domain concept –With a single MDIE (8 octets = Element ID + Len + 6 octet MD identifier number) Fast Transition IE –The TRIE and TSIE are now just FTIE (Fast Transition IE) FTIE is 35 octets long – including the R0 KeyHolder and R1 KeyHolder IDs (16 octets each) –FTIE is advertised in beacons and probe responses Association requests and responses –If Fast Transition is supported, then the MDIE and FTIE are in all association reqs/resps Pre-allocation of reservations –Both direct to the next AP (OTA, over-the-air) and through a proxy/broker (OTD, over the DS) –The AP advertises in its beacons and probe responses whether it supports OTD –Note: OTA is important for supporting APs that either have very complicated or slow DSes behind them, or no DS at all

September 22, 2005David Hunter Panasonic Background Issues Beware of dependence on EtherTypes –It was pointed out Tuesday that some of the groups propose specific EtherTypes to transport information over the DS –Problem: DS is not required to be Ethernet, nor even Ethernet compatible –Consequently: the information that these groups are defining in terms of EtherTypes needs to be more generically defined –In the meantime, needs to make sure that all of these new information definitions are generic enough to be usable over other DS protocols

September 22, 2005David Hunter Panasonic r Timeline Draft D0.09 available early next week Issue internal-to-TGr 15-day request for comments Then bi-weekly teleconferences through November 30 –Emphasis on comment resolution from the 15-day request Progress is much faster toward Letter Ballot than expected last July –Likely November 2005 Very likely to go to sponsor ballot long before the Draft goes to sponsor ballot

September 22, 2005David Hunter Panasonic u Note u Liaison Letter being Issued –The WG is sending liaison letters, explaining us work, to a wide assortment of standards and industry groups –Recipients include: , 802.1, , 3GPP, 3GPP2, GSMA, IETF, IRAP, WiFi Alliance, WiMAX, etc. –Letter enclosures are: , Generic Requirements Liaison (letter) , Requirements for TGu , Terms and Definitions Calls for a formal response from