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802.11aa – Robust Audio Video Transport Streaming Montreal , Quebec, Canada Opening Report

Summary of TGaa goals and agenda for the IEEE 802.11 Montreal Session in May 2009, focusing on topics like OBSS, TG-level review, and joint meeting with 802.1AVB.

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802.11aa – Robust Audio Video Transport Streaming Montreal , Quebec, Canada Opening Report

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  1. 802.11aa – Robust Audio Video Transport Streaming Montreal, Quebec, Canada Opening Report Date: 2009-05-06 Authors: Ganesh Venkatesan, Intel Corporation

  2. Abstract This submission summarizes TGaa goals and agenda for the IEEE 802.11 Montreal Session (May 2009). Slide 2 Ganesh Venkatesan, Intel Corporation

  3. Snapshot • Since the Vancouver session: • 3 Teleconferences focused on OBSS. • Goals for the Montreal Session: • Vice-Chair election • OBSS • Discuss some OBSS simulation data • Listen/review the OBSS solution discussed in the teleconferences • Generate feedback to the OBSS solution author(s) • Kickoff a TG-level review of Draft D0.01 • Plan for the joint meeting with 802.1AVB: • Agenda topics • Inputs from 802.11 • Review timeline Ganesh Venkatesan, Intel Corporation

  4. Opening Report Slide 4 Ganesh Venkatesan, Intel Corporation

  5. Attendance Recording - 802.11 Sign-in at http://newton.events.ieee.org “newton” is a local server, not reachable via a VPN “newton” is active only during 802.11 sessions First “sign in” to provide contact information Only name and affiliation may be posted publicly, as per IEEE rules No other personal information will be publicly available Second, log attendance Sign In Slide 5 Ganesh Venkatesan, Intel Corporation

  6. As a Courtesy To Others … PLEASE switch your Mobile Phones OFF, or to VIBRATE Alert, remember to MUTE your PC also please ! "Our thanks to all those people who now use Headsets !” The use of Audio and / or Video recording of any 802.11 meeting is Specifically Prohibited as per the 802.11 WG Policies and Procedures. This is mandated by the IEEE-SASB in the OpManual - 5.3.3.5. Still photography is only permitted by a public request and permission of the meeting membership via the WG Chair, and is not for commercial purposes, also mandated by IEEE-SASB in the OpManual - 5.3.3.4. Ganesh Venkatesan, Intel Corporation

  7. 802.11aa – May 2009 • Call Meeting to Order • Policies and Procedures, Attendance reminder: http://newton.events.ieee.org/ • **IEEE Patent Policy http://standards.ieee.org/board/pat/pat-slideset.ppt • Are there any patent claim(s)/patent application claim(s) and/or the holder of patent claim(s)/patent application claim(s) that the participant believes may be essential for the use of that standard? Minute any responses that were given, specifically the patent claim(s)/patent application claim(s) and/or the holder of the patent claim(s)/patent application claim(s) that were identified (if any) and by whom. • ***Affiliation FAQ - http://standards.ieee.org/faqs/affiliationFAQ.html • Anti-Trust FAQ - http://standards.ieee.org/resources/antitrust-guidelines.pdf • Ethics - http://www.ieee.org/portal/cms_docs/about/CoE_poster.pdf • IEEE 802.11 Policies and Procedures - http://www.ieee802.org/11/DocFiles/07/11-07-0360-04-0000-802-11-policies-and-proceedures.htm • IEEE 802 Policies and Procedures - http://www.ieee802.org/PNP/2008-11/LMSC_OM_approved_081114.pdf ** Read slide deck *** Note especially items #7 & #11 Slide 7 Ganesh Venkatesan, Intel Corporation

  8. Technical Presentations • Considerations for OBSS Sharing Using QLoad element (09/497r2) • Considerations for Statistical Multiplexing Support for OBSS (09/496r2) • OBSS Simulations/Results • OBSS Simulations (09/474r0), • Source for Video tests (09/524r0) and • OBSS 11g results (09/483r1) • More Reliable Multicast/Broadcast results 09/528r1 Slide 8 Ganesh Venkatesan, Intel Corporation

  9. TGaa Agenda (tentative) • Thursday AM2 (Other PAR topics) • Administrivia • Presentations • Tuesday AM2 • Administrivia • Vice Chair election • Approvals • Draft 0.01 TG-level Review kickoff • OBSS simulation/results • Thursday PM1 • Administrivia • Joint Meeting with AVB planning • Timeline Review • Review closing report • Tuesday PM1 (OBSS) • Administrivia • OBSS proposals • Wednesday PM1 (OBSS) • Administrivia • Continue with OBSS proposals Ganesh Venkatesan, Intel Corporation

  10. Minutes review Vancouver Minutes 09/0371r0 Revisit Mar 09, 2009 ad hoc meeting minutes 09/324r1 -- reapprove Revisit Vancouver Closing Report (384r0) Teleconference Minutes (09/425r1) Slide 10 Ganesh Venkatesan, Intel Corporation

  11. Motion-1 Move to approve TGaa Vancouver Session Minutes (in document 09/0371r0). Moved: Sudheer Grandhi (Interdigital) Second: Liwen Chu (STMicro) Vote: Unanimously Slide 11 Ganesh Venkatesan, Intel Corporation

  12. Motion-2 Move to approve TGaa ad hoc meeting in Vancouver Session Minutes (in document 09/0324r2). Approved unanimously Slide 12 Ganesh Venkatesan, Intel Corporation

  13. Motion-3 Move to approve Mar - May ‘09 Teleconference Minutes (document 09/0425r1) Moved: Liwen Chu (STMicro) Second: Alex Ashley (NDS) Vote: Unanimously Slide 13 Ganesh Venkatesan, Intel Corporation

  14. Thursday PM1 -- Agenda Administrivia Motion-2 OBSS directions Joint Meeting with AVB planning Timeline Review Review closing report Slide 14 Ganesh Venkatesan, Intel Corporation

  15. OBSS Directions • How the information is used to share the medium? • Set of information that needs to be exchanged • Impact of the OBSS solution on ‘legacy’ BSSs • Implementing the OBSS solution needs to provide a compelling benefit (in the presence of legacy BSSs) – otherwise no one will implement it • See 7.5 in 08/944r7 Ganesh Venkatesan, Intel Corporation

  16. 802.1AVB Topics What is the worst case delay when streaming under different conditions? (good conditions – 1msec, moderate – 8 msec and heavy congestion 800 msec) subset of options used channel conditions Is there a mechanism specified in 802.11 to propagate the worst case delay under current conditions, to upper layers? What data makes the most sense? 2. are there mechanisms to pass this data? 3. if not, can we define them? 802.11 TSPEC mapping to 802.1Qav TSPEC – plan for a presentation How are QoS errors fed back from the 802.11 MAC? Need to determine if 11k traffic stream/category statistics are sufficient. Expectations (from .1AVB perspective) for the Joint meeting : Answers to #1 above Updates on #2 and #3 SRP over 802.11 – need for relaying stream information (09/403r0) – list choices, pros/cons of each for discussion jointly Update each other on status of drafts Slide 16 Ganesh Venkatesan, Intel Corporation

  17. Timeline Review D1.0 WG letter ballot – according to timeline, scheduled for Nov 2009 PAR topics: Graceful degradation of audio video streams when there is insufficient channel capacity, by enabling packet discarding without any requirement for deep packet inspection, Increased robustness in overlapping BSS environments, without the requirement for a centralised management entity, Intra-Access Category prioritization of transport streams by modifying EDCA timing and parameter selection without any requirement for deep packet inspection, Improved link reliability and low jitter characteristics for multicast/broadcast audio video streams Interworking with relevant 802.1AVB mechanisms (802.1Qat, 802.1Qav, 802.1AS) D1.0 is required to be complete – address the PAR scope entirely Potential for a 4 month slip Slide 17 Ganesh Venkatesan, Intel Corporation

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