Minutes of 6/12/03 conference call
All - please forward as you see fit. Also, we had discussed having a call this Friday, but I think I'll postpone until next week, probably Tuesday or Wednesday; details to follow. Thanks to Len Miller of NIST for being our scribe!
Best,
Jim
> *********Minutes of 802.19/802.15.3a conference call **********
>
> A conference call under the auspices of the 802.19 Coexistence TAG was
> held on June 12, 2003 for the purpose of discussing the generation of
> usage scenarios for evaluating the coexistence of proposed 802.15.3a
> devices with other systems. The chairman of 802.19, Jim Lansford,
> opened the discussion at 10:35 a.m. EDT and acted as moderator. The
> following people participated in the call:
>
> Jay Bain
> David Cypher
> Dwayne Escola
> Jim Lansford
> Len Miller
> Rick Roberts
> Chris Rogers
> Adrian Stephen
> David Strayhan
> Steve Whitesell
>
> The moderator stated that goal of the conference call was to gauge the
> interest in organizing an informal group to study coexistence usage
> models for 802.15.3a and to establish a timeline for the study if there
> is sufficient interest to proceed.
>
> Adrian noted that a similar study is being undertaken by the new 802.11n
> high throughput study group with respect to coexistence with other
> variants of 802.11 devices, although 802.19 may require the
> consideration of other devices as well.
>
> Rick noted that the short time schedule for 802.15.3a downselection will
> probably not be affected by the effort to generate usage models.
>
> The moderator stated that 802.19 would like to generate a draft document
> containing 5 or 6 usage models for coexistence assessments, subject to
> discussion and amendments. An example usage model would be a laptop
> with 802.11a or 802.11b and also 802.15.3a, with associated geometry,
> call traffic, power levels, etc. A general rule for developing usage
> models would be that the scenarios should represent situations that have
> a high probability of occurring in practice, likely to happen around 80%
> of the time. From these situations, assessment of benchmark or "corner"
> cases would be made. The moderator said that he has a Sony document
> describing several such scenarios for a particular device.
>
> It was noted that some people are concerned with out-of-band emission
> effects of UWB devices. Examples include 802.15.3a collocated with a
> cell phone, the E911 operations in particular, and in the vicinity of
> cordless phones. The moderator stated that the current study would be
> intended to focus on interactions among 802.11/.15/.16/.20 devices and
> systems.
>
> Rick noted that there is a significant difference between coexistence
> provisions in a "standard" and in a recommended practices document. He
> suggested that the CFA presentations for 802.15.3a would be a good
> source of intended usage scenarios.
>
> It was generally agreed that a series of conference call meetings would
> be held at least twice per month on a Friday, at 10 a.m. EDT, unless another
> day or time is more likely to increase participation, particularly from
> people in Asia or in the Pacific time zone who are interested. In the interim,
> the moderator agreed to implement the following action items:
>
> --Notify the 802.19, 802.11, and 802.15 email lists of the existence
> of a coexistence study group for 802.15.3a
> --Contact 802.15.3a CFA presenters for ideas
> --Prepare a Word document as a first draft of a collection of usage
> models
>
> The meeting concluded at 11:14 a.m. EDT
>
>
>
> ._.. . _. __ .. ._.. ._.. . ._. ._ _ _. .. ... _
> ..._ .. ._ .__ .. ._. . ._.. . ... ... ._.. ._ _.
>
> Leonard E. Miller, Wireless Commun. Technologies Group
> National Institute of Standards & Technology (NIST)
> 100 Bureau Drive Stop 8920
> Gaithersburg, Maryland 20899-8920
> Phone: 301-975-8018 Fax: 301-590-0932
> email: lmiller@antd.nist.gov, LenMiller42@cs.com
> http://w3.antd.nist.gov/wctg/
> ._ _. ._ ._.. _.__ ... .. ... ._ _. _.. ... .. __ .._
> ._.. ._ _ .. ___ _. ___... .__ .. ._. . ._.. . ... ...
>
Jim Lansford, Ph.D.
CTO, Mobilian Corporation
Chair, IEEE 802.19 Coexistence TAG
www.ieee802.org/19
jim.lansford@ieee.org
Phone: +1 405 377 6170
Fax: +1 425 671 6099
Mobile: +1 405 714 0074
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