To WBSS or not to WBSS? May 2008 doc.: IEEE 802.11 11-08-0673-04-000p Month Year doc.: IEEE 802.11-yy/xxxxr0 May 2008 May 2007 doc.: IEEE 802.11 11-08-0673-04-000p To WBSS or not to WBSS? Date: 2008-05-14 Authors: Notice: This document has been prepared to assist IEEE 802.11. 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. Release: 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 802.11. Patent Policy and Procedures: The contributor is familiar with the IEEE 802 Patent Policy and Procedures <http:// ieee802.org/guides/bylaws/sb-bylaws.pdf>, including the statement "IEEE standards may include the known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent holder or applicant with respect to patents essential for compliance with both mandatory and optional portions of the standard." Early disclosure to the Working Group of patent information that might be relevant to the standard is essential to reduce the possibility for delays in the development process and increase the likelihood that the draft publication will be approved for publication. Please notify the Chair stuart@ok-brit.com as early as possible, in written or electronic form, if patented technology (or technology under patent application) might be incorporated into a draft standard being developed within the IEEE 802.11 Working Group. If you have questions, contact the IEEE Patent Committee Administrator at <patcom@ieee.org>. Justin McNew – TechnoCom John Doe, Some Company

WBSS vs. no BSS options in WAVE Month Year doc.: IEEE 802.11-yy/xxxxr0 May 2008 May 2007 doc.: IEEE 802.11 11-08-0673-04-000p WBSS vs. no BSS options in WAVE Data frame usage outside of a BSS Timing and Service Advertisement (WAVE IE) Station Groupings To/From DS WAVE Mode General data frame usage WBSS Wildcard or arbitrary BSSID Beacon or new management frame Via Join (BSSID of WBSS initiator) 1 Any combination of To/From set to true/false2 Required Outside of a BSS and within WBSS No BSS Setting of BSSID by SME1 Any combination of To/From set to true/false2,3 Not Required Always outside of a BSS4 1 Also accessible via MA-UNITDATA.request primitive (challenges with setting through data plane interfaces) 2 To/From DS=0 (always false for both) important option to consider. To support value of true requires some additional explanation. 3 Standard BSS functionality (ad hoc and infrastructure ) can still be used. 4 This approach means only clauses 7.1.3.3 (BSSID usage) and 11.3 (add all data frames to Class 1 – outside of a BSS) are affected by 11p. Justin McNew – TechnoCom John Doe, Some Company

Implications of no BSS on IEEE 1609 Month Year doc.: IEEE 802.11-yy/xxxxr0 May 2008 May 2007 doc.: IEEE 802.11 11-08-0673-04-000p Implications of no BSS on IEEE 1609 1609.4 Multi-channel management approach not reliant on WBSS joining May tie switching and multi-channel operation to alternate functions Minor changes in terminology Alternate description of how channel switching/management occurs between control and service channels Cleans up the discrepancy between control and service channel and being joined to a WBSS 1609.3 WSA and WBSS no longer tied together Requires redefining of WME (SME) ↔ MLME interface Minor changes already required because of beacon based WAVE IE Break down “join” function into discrete primitives to set parameters such as BSSID, channel information, etc. Justin McNew – TechnoCom John Doe, Some Company

Straw Poll Develop non-BSS approach for evaluation? May 2008 Month Year doc.: IEEE 802.11-yy/xxxxr0 May 2008 May 2007 doc.: IEEE 802.11 11-08-0673-04-000p Straw Poll Develop non-BSS approach for evaluation? Yes: 15 No: 0 Justin McNew – TechnoCom John Doe, Some Company

Beacon Frame vs. New Management Frame Month Year doc.: IEEE 802.11-yy/xxxxr0 May 2008 May 2007 doc.: IEEE 802.11 11-08-0673-04-000p Beacon Frame vs. New Management Frame Beacon option Requires mandatory elements that may not be useful for WAVE Requires overloading of SupportedRates element (or other approach) for backward compatibility Similar to 11n approach New management frame option Replace current on-demand beacon Timing information and generic advertisement frame? Contains timestamp and optional WAVE IE 16 frames of type 11, subtype 0000 – 1111 still available Justin McNew – TechnoCom John Doe, Some Company

Straw Poll (may vote yes for both) Month Year doc.: IEEE 802.11-yy/xxxxr0 May 2008 May 2007 doc.: IEEE 802.11 11-08-0673-04-000p Straw Poll (may vote yes for both) Continue with beacon frame Yes: 11 No: 3 Create new management frame Yes: 9 No: 6 Justin McNew – TechnoCom John Doe, Some Company