IEEE P802.15 Working Group for Wireless Personal Area Networks November 1999 IEEE P802.15 Working Group for Wireless Personal Area Networks Coexistence Study Group Report #2 Hyatt Regency Kauai, HI Steve Shellhammer, Symbol Technologies

Plan for the week Coexistence SG update to ExCom November 1999 Plan for the week Coexistence SG update to ExCom New Coexistence SG web site Call for Submissions on Coexistence Model David Cypher & Nada Golmie Coexistence, Interoperability, & Other terms MAC Performance Evaluations Kevin Marquess PHY Model Open Questions ExCom vote on PAR, Thursday night Steve Shellhammer, Symbol Technologies

References Coexistence Charter 802.15-99/088r2 PAR 802.15-99/086r3 November 1999 References Coexistence Charter 802.15-99/088r2 PAR 802.15-99/086r3 Five Criteria 802.15-99/096r1 Coexistence Study Group Web Site http://grouper.ieee.org/groups/802/15/SG Steve Shellhammer, Symbol Technologies

Need for Coexistence Task Group November 1999 Need for Coexistence Task Group It is important that IEEE 802.15 WPAN devices coexist with other wireless devices in the unlicensed frequency bands. In particular it is very important that 802.15 WPAN devices coexist with IEEE 802.11 WLAN devices. Steve Shellhammer, Symbol Technologies

Scope of Coexistence Task Group November 1999 Scope of Coexistence Task Group The goal will be to address coexistence of: Any 802.15 WPAN with any 802.11 WLAN Any 802.15 WPAN with any other 802.15 WPAN (assuming there will be more than one) Any 802.15 WPAN with selected other devices in the same band (e.g. HomeRF). Steve Shellhammer, Symbol Technologies

Coexistence Task Group Charter November 1999 Coexistence Task Group Charter Develop a Coexistence Model for the 2.4 GHz ISM band, that we can all agree to, which will help us assess the issues of Coexistence in a more quantitative way Deliver a Recommended Practice for WPAN and WLAN devices intended to coexist in a common environment. Steve Shellhammer, Symbol Technologies

Coexistence Model The purpose of this model is: November 1999 Coexistence Model The purpose of this model is: To understand under what circumstance there is a coexistence problem and under what circumstances there is not a problem. To develop supporting evidence to justify the recommended suggested practices Steve Shellhammer, Symbol Technologies

Coexistence Model PHY Layer Models Data Traffic Models November 1999 Coexistence Model PHY Layer Models MAC Layer Models Data Traffic Models Coexistence Model RF Propagation Models Steve Shellhammer, Symbol Technologies

How can 802.11 & 802.15 Collaborate on the issue of Coexistence? November 1999 How can 802.11 & 802.15 Collaborate on the issue of Coexistence? We put together a proposal by talking to personnel within 802.11 and 802.15 We discussed the proposal Tuesday within the Study Group We then voted on the proposal in the Study Group Steve Shellhammer, Symbol Technologies

Proposal for Task Group Operation <month year> doc.: IEEE 802.15-<doc#> November 1999 Proposal for Task Group Operation The Coexistence Study Group would become a Task Group in 802.15 The Liaisons from 802.11 would be able to vote in the Task Group since they have voting rights in 802.15 Progress of the group would be reported at the regularly scheduled 802.11/802.15 joint sessions Steve Shellhammer, Symbol Technologies <author>, <company>

Proposal for Task Group Operation November 1999 Proposal for Task Group Operation Once a draft Recommended Practice is ready for letter ballot it would be submitted to both the 802.15 and the 802.11 Working Groups for separate letter ballots. In order for the Recommended Practice to be forwarded to the Executive Committee for Sponsor ballot, the letter ballot must pass in both Working Groups. Steve Shellhammer, Symbol Technologies

Proposal for Task Group Operation November 1999 Proposal for Task Group Operation Anyone attending a Coexistence Task group session would be given attendance credit, for that time, in either 802.11 or 802.15. Steve Shellhammer, Symbol Technologies

November 1999 Study Group & 802.11 Votes Vote to recommend to ExCom that the SG become a Task Group in 802.15 and recommend the proposed voting scheme Yes: 21 No: 4 Abstain: 9 (SG) Yes: 19 No: 0 Abstain: 9 (dot 11) Should the SG become a TAG Yes: 3 No: 21 Abstain: 11 (SG) Yes: 0 No: 16 Abstain: 7 (dot 11) Vote to recommend the attendance credit procedure to 802.11 & 802.15 Yes: 31 No: 0 Abstain: 7 (SG) Yes: 25 No: 0 Abstain: 6 (dot 11) Steve Shellhammer, Symbol Technologies

Motion of Proposed Voting Rules November 1999 Motion of Proposed Voting Rules Motion to approve the separation of the subsequent letter ballot output from the 802.15 coexistence Task Group to both 802.11 and 802.15 voting members and for both groups to agree before sending to Excom Yes: 21 No: 0 Abstain: 0 (.11) Yes: 14 No: 0 Abstain: 0 (.15) Steve Shellhammer, Symbol Technologies