Re: What makes a 'position' usefull?

From: James M. Polk ^lt;jmpolk@cisco.com>
Date: Tue Jul 24 2001 - 15:06:47 EDT

Shahid

comments below

At 11:38 AM 7/24/2001 -0700, Shahid Shoaib wrote:
>
>----- Original Message -----
>From: James M. Polk
>To: Randy Bush ; Dante Castiglione
>Cc: geopriv@mail.apps.ietf.org
>Sent: Tuesday, July 24, 2001 11:19 AM
>Subject: Re: What makes a 'position' usefull?
>
>>Unless I'm mistaken, this charter does cover it. In the near future when a
>user subscribes to a location service that provides >location of other
>devices via this (then) new GEOPRIV Protocol, they (a client) can ask to get
>the location of any device (a server) >they are authorized to request the
>location of, including one's self (or an IP device close to one's self like
>a pager or cell phone), >thereby providing to one's self where they
>specifically are (depending on the granularity/accuracy of this service).
>Regardless if >this is one process interacting directly with another process
>within the same physical device, or outwards through a Proxy or >Location
>Server.
>
>I understand your point. But after you know the location of an entity,
>figuring out how to get there might just be a case of pressing a button that
>sends two pairs of coordinates to some anonymous navigation system (e.g.
>mapquest)

Conceptually I agree -- I don't think this is a Protocol issue anymore at that
point; and I admit I should have included that in my first email.

I believe if the first Client asks what the relative or absolute distance is
from/to a "Target" device at some location, once two locations are determined
(by querying both device's servers or relying on a Proxy for either or both
devices), some App server can deduce how to navigate a map or some other
requirement between the two locations (proximity, relative speeds and Doppler
speed, etc). If this is possible, then you won't have to "push any button" as
you state, the initial feedback from the first Client's Loc SP could be what
you initially asked for.

That should be the onus of the Location Service Providers to offer as a
competitive advantage for joining their service instead of someone else's, IMO.

>
>----------------------------------------------------------------------------
>-------
>Shahid Shoaib +1-408-451-4740 Direct
>DoCoMo USA Labs Inc. +1-408-573-1090 Fax
>shahid@dcl.docomo-usa.com http://www.docomo-usa.com
>

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James M. Polk
Consulting Engineer
Office of the CTO

Cisco Systems
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Received on Tue Jul 24 15:08:35 2001

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