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Doc.: IEEE 802.11-07/2115r1 Submission January 2008 Alex Ashley (NDS Ltd), Robert Miller (AT&T)Slide 1 Access Point Collaboration NameCompanyAddressPhoneEmail.

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Presentation on theme: "Doc.: IEEE 802.11-07/2115r1 Submission January 2008 Alex Ashley (NDS Ltd), Robert Miller (AT&T)Slide 1 Access Point Collaboration NameCompanyAddressPhoneEmail."— Presentation transcript:

1 doc.: IEEE 802.11-07/2115r1 Submission January 2008 Alex Ashley (NDS Ltd), Robert Miller (AT&T)Slide 1 Access Point Collaboration NameCompanyAddressPhoneEmail Alex AshleyNDS LtdNDS Ltd, One London Road, Staines, Middlesex, TW18 4EX, UK +44 1784 848770aashley@nds.com Lusheng JiAT&T180 Park Ave. Florham Park, NJ 07932, USA +1 973 360-7241lji@research.att.com Robert MillerAT&T180 Park Ave. Florham Park, NJ 07932, USA +1 973 236-6920rrm@research.att.com Yongho SeokLG Electronics 16 Woomyeon-Dong, Seocho-Gu, Seoul 137-724, Korea +8225264225yhseok@lge.com Authors: Date: 2008-05-13

2 doc.: IEEE 802.11-07/2115r1 Submission January 2008 Alex Ashley (NDS Ltd), Robert Miller (AT&T)Slide 2 Abstract This presentation addresses CID 423, 464, 602, and 684 of LB123. This presentation describes a mechanism to instruct multiple APs on the same channel to cooperatively share the wireless medium This enables enhanced QoS by allowing APs to allocate radio resources in ways other than evenly distributed among the STAs. This improves channel efficiency by providing less or no contention during each BSS’s allocated time segments Proposal fulfils requirement 2050 “Access Point Coordination” of the TGV objectives

3 doc.: IEEE 802.11-07/2115r1 Submission January 2008 Alex Ashley (NDS Ltd), Robert Miller (AT&T)Slide 3 Scope Improved throughput & QoS (delay, jitter) for multiple BSS on same channel within RF range In enterprise environments, in multi-dwelling unit (MDU) residential environments.

4 doc.: IEEE 802.11-07/2115r1 Submission January 2008 Alex Ashley (NDS Ltd), Robert Miller (AT&T)Slide 4 A Typical Enterprise Application

5 doc.: IEEE 802.11-07/2115r1 Submission January 2008 Alex Ashley (NDS Ltd), Robert Miller (AT&T)Slide 5 CF Poll Previous TGv OBSS proposals Modified BSS medium access Silence Schedule Distribution Silence Schedule Calculation Silence IE MIB variables CFP Offer / Response frames Tit-for-tatService interval selection TSPEC distribution HCCA service intervals Bit in CF-Poll Management Entity Feature07/2684r107/2115r0

6 doc.: IEEE 802.11-07/2115r1 Submission January 2008 Alex Ashley (NDS Ltd), Robert Miller (AT&T)Slide 6 CF Poll A Minimal Proposal Modified BSS medium access Silence Schedule Distribution Silence Schedule Calculation Silence IE MIB variables CFP Offer / Response frames Tit-for-tatService interval selection TSPEC distribution HCCA service intervals Bit in CF-Poll Management Entity A MIB controlled method of distributing modified medium access rules

7 doc.: IEEE 802.11-07/2115r1 Submission January 2008 Alex Ashley (NDS Ltd), Robert Miller (AT&T)Slide 7 A Minimal Proposal Modified BSS medium access Silence Schedule Distribution Silence Schedule Calculation Unspecified MIB variables Unspecified A MIB controlled method of distributing modified medium access rules

8 doc.: IEEE 802.11-07/2115r1 Submission January 2008 Alex Ashley (NDS Ltd), Robert Miller (AT&T)Slide 8 MIB controlled MAC MIB variables that cause an AP to modify the medium access behaviours for the BSS No over-the-air collaboration messages An external management entity schedules each BSS in turn to have higher/lower priority medium access by configuring the MIB variables.

9 doc.: IEEE 802.11-07/2115r1 Submission January 2008 Alex Ashley (NDS Ltd), Robert Miller (AT&T)Slide 9 Sharing Diagram Beacon AP #1 Beacon AP #2 Beacon Offset Suppressed Period Offset Suppressed, yield access to other OBSSes, e.g. - BSS #2 Suppressed Period Duration Grant Period Offset Grant Period Duration Channel access priority elevated Beacon AP #1

10 doc.: IEEE 802.11-07/2115r1 Submission January 2008 Alex Ashley (NDS Ltd), Robert Miller (AT&T)Slide 10 Beacon Suppressed Period Granted Period BI of the reference AP AP1 (reference) AP2 AP3 AP4 Example Scheduling Granted Period Granted Period Granted Period Suppressed Period Beacon Offset Granted Period Duration

11 doc.: IEEE 802.11-07/2115r1 Submission January 2008 Alex Ashley (NDS Ltd), Robert Miller (AT&T)Slide 11 Motion Motion: “Instruct the editor to include the changes in document 11-08-0419-01-000v-access-point- collaboration.doc into the TGv draft” Mover/Seconder: Result –Yes –No –Abstain

12 doc.: IEEE 802.11-07/2115r1 Submission January 2008 Alex Ashley (NDS Ltd), Robert Miller (AT&T)Slide 12 References

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