802.11e features for the enterprise November 2000 doc.: IEEE 802.11-00/375 November 2002 802.11e features for the enterprise Mathilde Benveniste benveniste@ieee.org Avaya Labs - Research M. Benveniste, Avaya Labs Research Mathilde Benveniste, AT&T Labs- Research

Objective Introduce EDCF-RR for polled HCF November 2002 M. Benveniste, Avaya Labs Research

Enterprise Environment November 2002 Enterprise Environment High volume of VoIP phone calls Low latency needed Data traffic Many traffic streams, some with heavy load High user density Good statistical multiplexing capability needed for good voice-data convergence M. Benveniste, Avaya Labs Research

EDCF-RR Mechanism TSPEC is used to set up a TS November 2000 doc.: IEEE 802.11-00/375 November 2002 EDCF-RR Mechanism TSPEC is used to set up a TS The Short Inactivity Interval is used to drop inactive TID from polling list The TSPEC is not cancelled due to WSTA short-term inactivity Receipt of an ‘RR’ by the AP will cause the AP to resume polling of this The ‘RR’ function will be achieved by an WSTA’s QoS null frame, which will use its own top-priority TC A new frame is thus not needed for the ‘RR’ function M. Benveniste, Avaya Labs Research Mathilde Benveniste, AT&T Labs- Research

EDCF parameters for the ‘RR’ November 2000 doc.: IEEE 802.11-00/375 November 2002 EDCF parameters for the ‘RR’ The QoS null frame for the RR will have its own top-priority TC [i.e. the shortest AIFS] The parameters for this TC would be set in the MIB Suggested parameter values: CWmin=8 Recommended differentiation: PF=0.5 and CWmax=2 *For more detailed discussion see 02/594r1 and 01/409r2 M. Benveniste, Avaya Labs Research Mathilde Benveniste, AT&T Labs- Research

EDCF-RR for HCF polling November 2000 doc.: IEEE 802.11-00/375 November 2002 EDCF-RR for HCF polling EDCF-RR enables statistical multiplexing of traffic Less overhead lost to unanswered polls More voice calls can be accommodated as a result EDCF data can be sent during inactive periods M. Benveniste, Avaya Labs Research Mathilde Benveniste, AT&T Labs- Research

November 2000 doc.: IEEE 802.11-00/375 November 2002 Conclusions To achieve enterprise performance goals, it is proposed that we: Introduce EDCF/RR mechanism in 02/760 for polling-list management Re-introduce persistence factors in the simplified form proposed in 409r2 M. Benveniste, Avaya Labs Research Mathilde Benveniste, AT&T Labs- Research