doc.: IEEE /0168r2 Submission Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 1 Joint Meeting with 802.1AVB Date: Authors:

doc.: IEEE /0168r2 Submission Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 2 Abstract Topics proposed for joint discussion in Nov 2011 (Dallas) Meeting: Specific details on k/v traffic stream statistic reports Overview of aa MaxRes for How to deal with STA-Bridge issue?

doc.: IEEE /0168r2 Submission Specific details on k/v traffic stream statistic reports Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 3 Triggered Autonomous Reporting ( ) STA Statistics Report (11k/11v) Traffic Stream/Category Measurement Report (11v) Need to add details: what are the required capabilities of the devices? what parameters can triggers be set on? what frames are used to set triggers? what reports are generated?

doc.: IEEE /0168r2 Submission Traffic Stream/Category Measurement Need support for RadioMeasurement and TriggeredTrafficStreamCateg oryMeasurement Cl , and in P REVmb 7.0 Higher Layer Stream ID and TS ID mapping established when reservation is made Triggers set in Request Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 4

doc.: IEEE /0168r2 Submission RRM- Traffic Stream/Category Request Traffic Identifier identifies the Traffic Stream corresponding to the Higher Layer Stream ID. Triggers can be –Average Error – number of dropped MSDUs exceeds threshold –Consecutive Error – number of consecutive MSDUs dropped exceeds threshold –Delay – number of MSDUs that exceeded the delay threshold –Count –Time-out Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 5

doc.: IEEE /0168r2 Submission RRM- Traffic Stream/Category Report Report includes –Reporting Reason: which trigger caused the report to be generated –Number of MSDUs transmitted, failed, discarded, retried –Average Queue Delay –Delay histogram Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 6

doc.: IEEE /0168r2 Submission QoS Maintenance Other parameters/features? –Maintenance report on multicast streams? If other parameters are needed needs to be amended –New changes in P802.11aa –Need to determine these parameters (if any) soon Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 7

doc.: IEEE /0168r2 Submission aa Overview History Demo of GCR-BA and OBSS in action Overview of the features Timeline Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 8

doc.: IEEE /0168r2 Submission History Pre-Study Group formation –Amending to better suit streaming needs were discussed in several WNG sessions –A 802 tutorial was sponsored by Stuart Kerry in the March 2007 plenary (Orlando, Fl) meeting –A WNG presentation to was made in the March 2007 plenary (Orlando, Fl) meeting –A Video Transport Stream SG was approved by the WG (and eventually by the 802 EC). The first SG meeting was in May 2007 (Montreal). The SG worked on PAR (Project Authorization Request)/5C (5 Criteria) –PAR/5C was approved by the WG in Jan 2008 (Taipei) and re-affirmed in Mar 2008 (Orlando, Fl) aa met for the first time in May 2008 (Jacksonville, Fl) Draft 1.0 balloted June 2010 ( % approval) – 31 No Voters Draft 2.0 balloted Nov 2010 ( % approval) – 32 No Voters Draft 3.0 balloted Feb 2011 ( % approval) – 29 No Voters Mar Ganesh Venkatesan, Intel Corp.

doc.: IEEE /0168r2 Submission Demo of aa features GCR BA OBSS Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 10

doc.: IEEE /0168r2 Submission Scope (802.11aa feature) This amendment specifies enhancements to the MAC (Medium Access Control)for robust audio video streaming, while maintaining co- existence with other types of traffic. The MAC enhancements specified in this amendment enable:. –Graceful degradation of audio video streams when there is insufficient channel capacity, by enabling packet discarding without any requirement for deep packet inspection (SCS), –Increased robustness in overlapping BSS environments, without the requirement for a centralized management entity (OBSS), –Intra-Access Category prioritization of transport streams by modifying EDCA timing and parameter selection without any requirement for deep packet inspection (SCS), –Improved link reliability and low jitter characteristics for multicast/broadcast audio video streams (GATS), –Interworking with relevant 802.1AVB mechanisms (802.1Qat, 802.1Qav, 802.1AS) (Interworking) Mar Ganesh Venkatesan, Intel Corp.

doc.: IEEE /0168r2 Submission Stream Classification Service (SCS) Two Modes: Frames belonging to a Traffic Streams –Prioritization using Alternate Access Category and mapping to 802.1Qav traffic shaping policies –DEI defined for a stream using Intra Access Category Prioritization element –TCLAS and TCLAS processing elements Frames belonging to a User Priority –Drop Eligibility Indicator (DEI) in the MAC header corresponding to data frames carrying the stream payload Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 12

doc.: IEEE /0168r2 Submission Stream Classification Service (SCS) STA sets up SCS with the AP using SCS Request TCLAS, TCLAS processing elements and Intra AC Prioritization element describe the stream that is subject to this service –Frames from the STA belonging to the stream and –with the same UP not belonging to the stream are subject to this service Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 13

doc.: IEEE /0168r2 Submission Group Address Transmission Service Mar 2011 Ganesh Venkatesan, Intel Corp.Slide v Directed Multicast Service –Converts multicast to unicast GroupCast with Retries –Unsolicited retries –BlockAck DMS Request/Response Action Frames are used to set up DMS/GCR service –Includes TSPEC, TCLAS and TCLAS processing elements Groupcast Delivery (Service Periods) –Multiple delivery instances of Groupcast frames within a Beacon Interval –Continuous Service Period

doc.: IEEE /0168r2 Submission Group Addressed Transmission Service Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 15

doc.: IEEE /0168r2 Submission Interworking with 802.1AVB (802.1Qat) Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 16 ADDTS Reserve Response replaces ADDTS Complete action frame MLME-ADDTS RESERVE Confirm is either Immediate when invalid parameters are detected by he MLME, or At the end of the procedure reflecting the contents of the ADDTS Reserve Response action frame contents.

doc.: IEEE /0168r2 Submission Overlapping BSS OBSS – BSSs that are operating in the same channel and are within radio range of each other Provides mechanisms for BSSs that are in range of each other to exchange information on QoS Load within a BSS and composite QoS Load on BSSs adjacent to the reporting BSS –Addresses both EDCA-AC and HCCA Recommend how this exchanged information can be used to –Find the best operating channel –Co-operatively share the medium to maximize network performance Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 17

doc.: IEEE /0168r2 Submission Timeline ►Form Sponsor pool – May 2011  80% approval from members  31 NO voters MEC Done – Aug 2011 Start Sponsor Ballot – Sep 2011 ( need > 90% approval ) First Sponsor Recirc – Nov 2011 Sponsor Ballot done (final WG approval) – Mar 2012 Final or conditional 802 EC approval – Mar 2012 RevCom/SA approval -- June 2012 (lined up with appropriate RevCom/SA meeting dates) Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 18

doc.: IEEE /0168r2 Submission MaxRes for Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 19 Reference: kbstanton-rate-adaptation-over pdf kbstanton-rate-adaptation-over pdf How to determine when there is enough bandwidth to admit new traffic and when the available bandwidth is not sufficient to sustain currently admitted traffic

doc.: IEEE /0168r2 Submission STA-Bridge Mar 2011 Ganesh Venkatesan, Intel Corp.Slide 20 Reference: bridging-0308-v3.pdf bridging-0308-v3.pdf There is consensus that this is not within the scope of aa The request from 802.1AVB is how can we move forward on this topic? Present to WNG and start a new.11 SG/TG? Work on Use Case document to demonstrate that there are common scenarios where not solving this issue hampers proliferation of.11/.1AVB technologies? An assessment (~20 months ago) concluded that this problem is not worth solving.