Re: Modem supporting location information?

[Marius Kotsbak <marius kotsbak com>]

Den 06. des. 2012 17:32, skrev Dan Williams:
> On Thu, 2012-12-06 at 12:46 +0100, Bastien Nocera wrote:
> > On Fri, 2012-11-30 at 17:55 +0100, Aleksander Morgado wrote:
> > > On 11/30/2012 05:48 PM, Bastien Nocera wrote:
> > > > I'm interested in getting a 3G modem that would support A-GPS. I have a
> > > > (possibly simlocked) option modem:
> > > > 0af0:6971 Option Globetrotter HSDPA Modem
> > > >
> > > > Which tells me that it doesn't support Location services. Does it not
> > > > support it, or is it not implemented?
> > > That one should be supported in ModemManager git master, see:
> > > http://sigquit.wordpress.com/2012/03/29/enabling-gps-location-in-modemmanager/
> > >
> > > But not A-GPS; just plain GPS for now.
> > What would be needed for A-GPS support?
> We need to come up with a good interface here; there's a lot more
> parameters to send to the device for A-GPS, and it's slightly different
> between 3GPP and CDMA.

I think for Sierra modems the required AT commands for A-GPS are only 
available under NDA, so I don't think it would be possible to implement. 
Information about normal GPS usage is available a lot of places:

http://embeddedlinux01.wordpress.com/2012/07/17/enabling-gps-on-sierra-aircard-modems/

--
Marius