WWiSE summary, prior to first downselect Date: 2005-01-20 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.kerry@philips.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>. Sean Coffey, Texas Instruments, et al.

Additional authors: VK Jones Airgo Networks vkjones@airgonetworks.com Richard van Nee richardvannnee@airgonetworks.com Ali Raissinia aliraissinia@airgonetworks.com Allert van Zelst allertvanzelst@airgonetworks.com Bruce Edwards Broadcom bedwards@broadcom.com Matthew Fischer mfischer@broadcom.com Chris Hansen chansen@broadcom.com Tushar Moorti tushar@broadcom.com Chris Young cyoung@broadcom.com Takashi Ishidoshiro Buffalo doshir@melcoinc.co.jp Masato Kato mkato@melcoinc.co.jp Dave Hedberg Conexant dave.hedberg@conexant.com Michael Seals michael.seals@conexant.com Sean Coffey, Texas Instruments, et al.

Additional authors: Mark Webster Conexant mark.webster@conexant.com Menzo Wentink menzo.wentink@conexant.com Taehyun Jeon ETRI thjeon@etri.re.kr Sok-kyu Lee sk-lee@etri.re.kr Heejung Yu heejung@etri.re.kr Mustafa Eroz Hughes Network Systems feroz@hns.com Lakshmi Iyer liyer@hns.com Lin-Nan Lee llee@hns.com Feng-Wen Sun fsun@hns.com Stephan ten Brink Realtek stenbrink@realtek-us.com Gabriella Convertino STMicroelectronics gabriella.convertino@st.com Mike Moreton mike.moreton@st.com Fabio Osnato fabio.osnato@st.com Pratima Pai pratima.pai@st.com Sean Coffey, Texas Instruments, et al.

Additional authors: Vincenzo Scarpa STMicroelectronics vincenzo.scarpa@st.com Massimiliano Siti massimiliano.siti@st.com George Vlantis george.vlantis@st.com Srikanth Gummadi Texas Instruments sgummadi@ti.com Manoneet Singh msingh@ti.com Richard Williams richard@ti.com Keith Chugg TrellisWare kchugg@trellisware.com Paul Gray pgray@trellisware.com Bob Ward bward@trellisware.com Jeng-Hong Chen Winbond Electronics jhchen2@winbond.com Pansop Kim pkim@winbond.com Alfred Lin halin@winbond.com Wei-Chung Peng wcpeng0@winbond.com Sean Coffey, Texas Instruments, et al.

Abstract The presentation summarizes the WWiSE complete proposal, in the context of the first downselect vote Sean Coffey, Texas Instruments, et al.

State of the Task Group The Task Group will soon, in March, have to make an irrevocable decision that will have significant consequences for the success or failure of the entire project This decision is not whether to choose WWiSE, or TGnSync, or MitMot The irrevocable step is the enabling of the first draft of TGn Sean Coffey, Texas Instruments, et al.

State of the Task Group, contd. Any items in the first draft that are unspecified, or undecided, can only be corrected by a 75% majority of the entire Task Group, under formal Robert’s Rules of Order proceedings In 2001, there were minor mechanisms in the .11e draft that were generally agreed to be broken, but the proceedings deadlocked for 6 months because of the 75% hurdle .11e is still in progress, now up to draft 12 Sean Coffey, Texas Instruments, et al.

Suitability as basis for first draft The current TGnSync specification is not in adequate state to form a first draft Massive technical inconsistencies Some on the order of 10 dB or more, even within TGnSync simulations Very sophisticated techniques with severely underspecified mechanisms Descriptions to support closed loop either inadequately described or not described at all Disjointed features rather than consistent design Further major changes pending due to mergers Sean Coffey, Texas Instruments, et al.

Purpose of the vote The primary significance of this vote is for the Task Group to offer feedback on preferred direction The final decision will be in March The final opportunity for feedback is now Choices: WWiSE TGnSync MitMot Not vote Sean Coffey, Texas Instruments, et al.

WWiSE as draft 1.0 of .11n The WWiSE specification, 11-04-0886r6, is ready for immediate use as the basis for draft 1.0 and submission to WG letter ballot The mechanisms are well suited for all extensions, including beamforming and closed loop feedback, multiple backward compatibility mechanisms, and also give significant advantages in range, coverage, and robustness The core of WWiSE is an efficient embodiment of items that are mostly in general agreement Sean Coffey, Texas Instruments, et al.

Conclusion The WWiSE specification will enable the Task Group to progress efficiently to finish the .11n amendment and facilitate rapid market development of High Throughput technology Sean Coffey, Texas Instruments, et al.