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IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: 21-07-0211-00-0000Title: Liaison Report – 802.11 Work Related to 802.21Date Submitted: May 17, 2007Presented at IEEE 802.21 session 20 in Montreal, CanadaAuthors or Source(s):  David HunterAbstract: 802.11 is one of the technologies that 802.21 MIH is

required to support.

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IEEE 802.21 presentation release statementsThis document has been prepared to assist the IEEE 802.21 Working Group. It is

offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.

The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.21.

The contributor is familiar with IEEE patent policy, as outlined in Section 6.3 of the IEEE-SA Standards Board Operations Manual <http://standards.ieee.org/guides/opman/sect6.html#6.3> and in Understanding Patent Issues During IEEE Standards Development http://standards.ieee.org/board/pat/guide.html> 

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Liaison ReportIEEE 802.11 work most related to 802.21

David HunterPanasonic

hunter@timefactor.com

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• 802.11k – Radio Resource Measurement• Measurements provided for runtime adjustment of radios• Close to going to Sponsor Ballot

• 802.11mb – New Maintenance group (compilation of all approved amendments)• IEEE Std. 802.11-2007 approved by SASB March 8, 2007• New 802.11mb Maintenance Task Group was started in March 2007 meeting

• 802.11r – Fast BSS Transition• Between BSSes within the same ESS; relies on 802.11k (especially neighbor reports)• More notes below

• 802.11u – Interworking with External Networks• MAC changes to accommodate, among others, 802.21• Relies on 802.11k and 802.11r; has scope agreement with 802.11v• More notes below

• 802.11v – Wireless Network Management• Management protocol additions; AP-AP negotiations; load balancing; access controls• New Chair: Dorothy Stanley; Draft 0.13 after this meeting; will attempt to go to LB after July

• 802.11w – Protecting Management Frames• Security for management frames, including broadcast frames; relies on 11k, 11r and 11u• Still in comment resolution; will not complete these in the May meeting

• New DLS SG : more notes below• QoS Extended Services SG : tomorrow 802.11 WG may forward PAR to EC• Video Transport Streaming SG : additions to support video : beginning discussion stages• Very High Throughput SG : 1Gbps successor to 802.11n : beginning discussion stages

802.11 Groups Related to 802.21 (more than the usual suspects)

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802.11 WG News• New E911 Ad-Hoc Committee

• Stuart Kerry, 802.11 Chair, appointed Stephen McCann to Chair

• New document system created by IEEE• 802wirelessworld will cease operation next Tuesday midnight (ET)• New system will begin operation next Thursday midnight (ET)• See document 11-07-0767-00-0000

• New liaison to Bluetooth Sig• Stuart Kerry appointed John Barr as liaison• John is also Chairman of the Board of Bluetooth Sig

• Sig has over 3000 members• Have shipped over 1B products; 13M/week now; 2B/year by 2010

• See presentation 11-07-0747-00-0000

• Wi-Fi Alliance interaction• Presentation by Andrew Myles, Chair of WFA• WFA certified products: 300M so far; 1B total by 2012• Appeal for more interaction between WFA and 802.11• See presentation 11-07-0764-00-0000

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New DLS Study Group• Proposed Task Group

• DLS: Direct Link Setup• Direct communications between two non-AP STAs

• Problem with Current DLS Definition• Must be set up by communications with the AP, so requires explicit AP support• Not many APs today have this capability• Desire is for a DLS that can be set up between STAs without a special AP• In addition, current DLS definition does not support Power Save

• Proposals• A couple of groups have clear ideas (and trials) of how to accomplish this

– 11-07-0478-00-0000-ndls.ppt– 11-06-1566-01-0wng-flexwifi-distributed-dls.ppt

• PAR and 5C• 11-07-0225-02-0000-draft-par-and-5-criteria-dls-sg.doc• 802.11 WG voted in March to send this to 802 ExCom to create TG• But ExCom needed 30 day notice• Expect ExCom to approve this in July, forward it to NesCom, and TG to

meet first in September • May 2007

• Continuing listening to conceptual proposals • But no technical text yet proposed for the amendment

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QoS Extended Services Study Group • New Proposed Task Group: to “harmonize” 802.11e with WMM

• WMM: Wireless Multimedia Specification• Defined by the Wi-Fi Alliance• Mostly a subset of 802.11• However, many details different from 802.11• The WFA has certified products *only* to WMM, not 802.11e• WFA members have shipped 50-100M products with WMM

• Problem: current WFA-certified products do not match IEEE 802.11-2007• Some feel that 802.11e should be rewritten to match current products• Others feel that 802.11e has features that are required in the future

• Major debate: possibly invalidating products built to 802.11e• Study Group today inserted strict rule in PAR Scope

• Preventing conflict with 802.11e• Brings up problem of what the new TG can actually do to “harmonize”

• Proposed PAR and 5C• 11-07-0029-05-0wng-proposal-harmonization-802-11e-and-wmm.doc• Will come to 802.11 WG vote tomorrow morning

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802.11r Letter Ballot Status

• Latest re-circulation ballot comments completed• Finished all comments this week

• Complete comment resolutions: 11-07-0498-17-000r-d5-comments.xls

• Current Draft 6.0 was available this morning• Decided on “final” recirculation

• 15-day, so will be complete in June• Goal is to see whether any new No votes and new comments

• IF no major new issues, then will go to Sponsor Ballot• Likely going to Sponsor Ballot in July 2007

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802.11u Highlights(Quick Summary, since 802.21 has great interaction with 11u)

• Ad-Hoc with 802.21 : 11-15 June• Group in favor of meeting, only 5-1/2 would commit to show up• Alternative proposal: Fri-Sun before July meeting won

• Proposal to 802.21: is interested in a second ad-hoc with 11u?

• Remaining 11-21 issues on primitives• Primarily general binary format

• Timeline• Outline in TGu timeline document

• But new 07/xxxx document number will be created• Voted to authorize Draft 0.06 to become Draft 1.0• Voted to go to Letter Ballot

• But must be approved by 802.11 WG tomorrow

• Liaison Letter to IETF EAP Method Update WG• EAP Method for Emergency Calls• Document 11-07-0811-01-000u-ietf-eap-emergency-call-liaison.doc