RE: Confidence (was: Geopriv WG - meeting 5-6 Jun, other news)

From: Dan Greening ^lt;>
Date: Sat May 18 2002 - 15:58:56 EDT

The MLP 2.0.0 spec is
There are a lot of fixes in 3.0.0, and 2.0.0 doesn't contain the OGC
style shapes or OGC CoordinateReference system specification (we did our
own, which we later regretted).

If you're a member of LIF or OGC you can get the 3.0.0 draft now, but
otherwise have to wait a couple of weeks. It might be out just before
the Geopriv meeting.

The only things coming from GML are shapes, and in fact only a few of
them would typically be used for this particular purpose. GML is at Shapes are all
specializations of Geometry.

Dan Greening, Ph.D. CEO, BigTribe Corporation
              330 Townsend Street, Suite 209, San Francisco, CA
     +1(415)995-7151 fax 995-7155

-----Original Message-----
From: Richard Shockey []
Sent: Saturday, May 18, 2002 12:37 PM
To: Dan Greening;
Subject: RE: Confidence (was: Geopriv WG - meeting 5-6 Jun, other news)

At 10:01 AM 5/18/2002 -0700, Dan Greening wrote:
>In the LIF variant, confidence (although I'm not sure that's the right
>word here) is expressed as a shape.


>You can see examples of this in the LIF (Location Interoperability
>Forum) Mobile Location Protocol specification (technically "LIF TS 101
>v2.0.0"). I hope you IETF folks are referring to that, we spent a lot
>of time getting it right (especially in the public-within-weeks LIF TS
>101 v3.0.0, which incorporates shapes and coordinate reference systems
>from OGC's GML (Geographic Markup Language).

IYHO how much of GML could/should be adapted to the task a hand .. do
have any URL's to documents that describe this in more detail ..

thank you ..

>In particular, some typical regions are
>. A circle or ellipse (if you are doing cell-id with a tower with a
>non-directional antenna, or GPS).
>. A cone (if you are doing cell-id with a directional antenna on a
>. A "banana" (if you are doing cell-id with a directional antenna on a
>tower, and you are using timing-advance)
>You get some really funky regions if you have detailed coverage
>information and you are in a mountainous region. A set of disjoint
>mountaintops, for example.

Richard Shockey, Senior Manager, Strategic Technology Initiatives
NeuStar Inc.
45980 Center Oak Plaza Bldg 8 Sterling, VA 20166
1120 Vermont Ave NW Suite 400 Washington DC 20005
Voice +1 571.434.5651 Cell : +1 314.503.0640, Fax: +1 815.333.1237
<mailto:> or
Received on Sat May 18 16:00:07 2002

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