[maemo-developers] AGPS performance

From: Frederic Crozat fred at crozat.net
Date: Thu Jul 3 15:20:09 EEST 2008
Hi,

some quicks comment from an end-user perspective

On Thu, Jul 3, 2008 at 12:15 PM, Simon Pickering
<S.G.Pickering at bath.ac.uk> wrote:
> Hi all,
>
> Just a quick question. Diablo has seen the introduction of working AGPS
> (yay!), but I've been wondering if we'd gain better performance by having a
> more accurate way of telling the SUPL server (which sends us the data we
> need about satellite positions, etc.) where we are?

When I tried A-GPS with pre-release Diablo packages, the accurary was
pretty good, when it was kicking GPRS connection to grab ephemeris
(cold fix time was about 30s to 1minutes). So, I'm not sure it is
worth going down to lower resolution than 300km.

Since the reflash to official Diablo image + updated a-gps package,
GPRS connection is never started and I have the feeling A-GPS is not
working at all. And I have no clue where does regression come from.

-- 
Frederic Crozat

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