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Admissions Control and Scheduling Behaviours for Scheduled EDCA

Admissions Control and Scheduling Behaviours for Scheduled EDCA. Authors: Steve Emeott, Ye Chen, Stephen Wang, Floyd Simpson Motorola, Inc. Date: January 8, 2004. Addresses Ballot Comments. Contention-based Admissions Control Procedures Comment # 13, 14, and 15. Issue Addressed.

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Admissions Control and Scheduling Behaviours for Scheduled EDCA

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  1. Admissions Control and Scheduling Behaviours for Scheduled EDCA Authors: Steve Emeott, Ye Chen, Stephen Wang, Floyd Simpson Motorola, Inc. Date: January 8, 2004 Steve Emeott et.al Motorola,

  2. Addresses Ballot Comments • Contention-based Admissions Control Procedures • Comment # 13, 14, and 15 Steve Emeott et.al Motorola,

  3. Issue Addressed • The normative text defining the admissions control, scheduling and aggregation behavior of the QAP and non-AP QSTA towards eDCA traffic requiring scheduled delivery is not provided in clause 9. Steve Emeott et.al Motorola,

  4. Relevant Clauses in 802.11e Draft (6.0) • In Clause 9.9.3.2, the normative behavior of the QAP when admitting an HCCA flow with a schedule is defined. However, in the counterpart Clause 9.9.3.1, the normative behavior of the QAP when admitting eDCA traffic with a schedule is unspecified. • Additionally, the normative scheduling and aggregation behavior of the QAP with an admitted HCCA traffic stream is defined in clause 9.9.3.2. However, the normative behavior of both the QAP and non-AP QSTA with respect to scheduled and/or aggregated EDCA traffic is not similarly defined in clause 9.9.3.1. Steve Emeott et.al Motorola,

  5. Proposed Behavior – Admission Control • The TSPEC setup signaling stays intact • A non-AP QSTA requests to establish a schedule for admitted eDCA traffic using a TSPEC element with the schedule bit set to 1 in either an ADDTS request frame or a(Re)association Request frame containing a QoS Action Element with an ADDTS request • The QAP establishes a service schedule for the eDCA traffic and conveys the schedule through the schedule element in either an ADDTS response frame, a (re)association frame, or the schedule frame Steve Emeott et.al Motorola,

  6. Proposed Behavior - Scheduling • Both the QAP and the non-AP QSTA shall honor the schedule set for admitted eDCA traffic • An eDCA scheduling function is responsible to make sure the eDCA traffic complies to the schedule and releases the eDCA frames to the eDCA channel access function at the service start time specified in the schedule • The eDCA scheduling function shall buffer the traffic arriving after the service start time until the next scheduled service start time Steve Emeott et.al Motorola,

  7. Proposed Behavior - Aggregation • The aggregation operation • Similar to the normative aggregation behavior defined in Clause 9.9.3.2 for HCCA traffic under control access, the QAP may aggregate admitted eDCA traffic and generate an aggregate EDCA Service Schedule for a single non-AP QSTA • The service start time of the aggregate Service Schedule shall apply to all scheduled EDCA traffic for the QSTA Steve Emeott et.al Motorola,

  8. Summary of Proposed Changes • All proposed changes as normative text are in document 11-04-0009-00-000e Steve Emeott et.al Motorola,

  9. Q&A Steve Emeott et.al Motorola,

  10. Motion To adopt the changes identified in document 11-04-0009-00-000e into the current TGe Draft Steve Emeott et.al Motorola,

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