[maemo-developers] N810 AGPS?

[From: Darius Jack]

Hi,

WiFi triangulation = kismet built database of Wifi hotspots.
Triangulation algorithm is well known and already implemented in cell phones for
base station tower triangulation.

Are you aware what patents have been granted in this area ?

" from webpage"
http://www.skyhookwireless.com/press/skyhookapple.php

"The patented technology behind WPS leverages that database to provide location information. "

There is already a number of providers claiming to offer Wifi-based AGPS.

Darius


Simon Pickering <S.G.Pickering at bath.ac.uk> wrote: 
>> Just wondering if AGPS is enabled, or could be enabled on the N810. We
>> have a chip which supports it (Ti NaviLink GPS5300). The question
>> (mainly aimed at Nokians) is whether or not they can release a bit
>> more info to make this possible.
>
> Interestingly, Skyhook Wireless - who have provided the ESSID
> triangulation for the iPod Touch - have a Maemo 3.1 SDK on their
> website (post-registration).
>
> I succeeded in getting it to segfault on chinook, so dropped them an
> email asking if they had plans for a Maemo 4.0 SDK.
>
> Combining the GPS with wifi triangulation, whether to do AGPS or just
> greater tolerance of built-up, indoors areas could be very cool.

Wifi triangulation on its own would be pretty cool (another location  
method for geoclue), and if we could use that, or other non-GPS  
location data, to provide a better set of Ephemeris data for the GPS  
(rather than just supplying the Almanac data, which is what I guess  
A-GPS LTO does) to improve lock times that would be an added bonus.


Simon

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