1. doc.: IEEE 802.11-07/2977r0 Submission November 2007 Ganesh Venkatesan, Intel CorporationSlide 1 VTS SG PAR Scope Topics Date: 2007-12-17 Authors:

2. doc.: IEEE 802.11-07/2977r0 Submission November 2007 Ganesh Venkatesan, Intel CorporationSlide 2 Abstract This submission is a high level description of VTS SG PAR Scope topics.

3. doc.: IEEE 802.11-07/2977r0 Submission November 2007 Ganesh Venkatesan, Intel CorporationSlide 3 Interworking with relevant 802.1 mechanisms including, but not limited to, 802.1Qat, 802.1Qav and 802.1AS  Link Adaptation Mechanisms Increased robustness in overlapping BSS environments, based upon enhancing existing 802.11 mechanisms without the requirement for a centralised management entity. Modified EDCA timing and parameter selection for video transport  Asynchronous multicast streaming independent of power save modes employed by associated stations. ?Broadcast Video ?DRM Proximity requirements ?802.1 “Wireless Bridge” proposal What is in the PAR Scope?

4. doc.: IEEE 802.11-07/2977r0 Submission Interworking with 802.1 Map 802.1Qat and 802.1Qav into 802.11; 802.1Qat – Stream Reservation Protocol, 802.1Qav – forwarding and Queuing Enhancements for Time-Sensitive Streams November 2007 Ganesh Venkatesan, Intel CorporationSlide 4

5. doc.: IEEE 802.11-07/2977r0 Submission Link Adaptation Mechanisms Goal is to provide a feedback mechanism from the receiver to the transmitter. The feedback includes some indication of the state of the receiver (RF and maybe some system state). The transmitter uses this feedback to determine optimal setting (transmission rate, retransmission counters, etc.) Retransmit counters based on content – e.g: I-frames are retried more than P-Frames Need better text to convey the idea in the scope. November 2007 Ganesh Venkatesan, Intel CorporationSlide 5

6. doc.: IEEE 802.11-07/2977r0 Submission Overlapping BSS Issues Provide mechanisms so that a BSS can account for “relevant activities” in overlapping BSSs Extend Public Action Frame to enable inter-BSS information exchange Need to address all OBSS scenarios – AP within OBSS, some non-AP STAs within OBSS while AP is not, etc November 2007 Ganesh Venkatesan, Intel CorporationSlide 6

7. doc.: IEEE 802.11-07/2977r0 Submission Modified EDCA Extend EDCA to accommodate multiple streams and differentiate between them Packet re-ordering? Send more important data first Finer priorities within AC_VI Address cases where performance of a video stream is impacted when changes happen in another video stream – Rx2 moves causing video at Rx1 to be unacceptable November 2007 Ganesh Venkatesan, Intel CorporationSlide 7

8. doc.: IEEE 802.11-07/2977r0 Submission Broadcast Video How to enable robust broadcast/multicast Video Streams? Document 07/2954r1 – Video Broadcast/Multicast Proposed Scope statement: A protocol to enable improved reliability and rate adaptation for broadcast and multicast video traffic. Can replace “Asynchronous multicast streaming independent of power save modes employed by associated stations.” Are there other requirements? Mobile Digital TV for handheld devices (DVB-H), Microsoft Broadcast Driver Architecture? November 2007 Ganesh Venkatesan, Intel CorporationSlide 8

9. doc.: IEEE 802.11-07/2977r0 Submission DRM Proximity Requirements How do you determine that the Content Sink is physically close to the Content Source? WNG Presentation in Atlanta – doc #07-2778r2 “Content Protection Support in 802.11” Round trip ping is a method used to determine proximity – e.g. Round Trip Ping completes within 7ms. Explore some of the techniques proposed in document 07-2778r2. Comment in the 12/10/07 teleconference – work with a DRM liaison and help address DRM requirements when the link used is 802.11 (or wireless). November 2007 Ganesh Venkatesan, Intel CorporationSlide 9

10. doc.: IEEE 802.11-07/2977r0 Submission 802.1 “Wireless Bridge” Proposal Intention is to use a 802.11 device as a wired-wireless bridge. A detailed discussion on this is planned for Feb 01, 2008. Some of the issues discussed in the SF joint meeting – what happens when a wireless device is a part of a wired/wireless network? 4-address frames were proposed as a solution to mitigate some of the issues. Is this covered by “Interworking with 802.1 mechanisms” part of the scope? Comment in the Atlanta joint meeting – wanted an explicit statement in the Scope. November 2007 Ganesh Venkatesan, Intel CorporationSlide 10