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Siddarth |
2009-09-04
, 07:53
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Posts: 107 |
Thanked: 21 times |
Joined on Sep 2009
@ India . Mumbai
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#1
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When The Phone has come with Great OS and features..why isit missing on GPS in it?
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2009-09-04
, 08:01
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Posts: 479 |
Thanked: 641 times |
Joined on Dec 2007
@ Switzerland
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#2
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According to
http://maemo.nokia.com/n900/specifications/
a GPS is present in the N900...and according to
http://wiki.maemo.org/index.php?titl...aWorld_2009_QA
it's a full GPS, not only A-GPS...
-lorelei
http://maemo.nokia.com/n900/specifications/
a GPS is present in the N900...and according to
http://wiki.maemo.org/index.php?titl...aWorld_2009_QA
it's a full GPS, not only A-GPS...
-lorelei
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2009-09-04
, 08:28
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Posts: 107 |
Thanked: 21 times |
Joined on Sep 2009
@ India . Mumbai
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#3
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Thank you Loreleil
...For Clearing mu Doubt!
...For Clearing mu Doubt!
Originally Posted by lorelei
According to
http://maemo.nokia.com/n900/specifications/
a GPS is present in the N900...and according to
http://wiki.maemo.org/index.php?titl...aWorld_2009_QA
it's a full GPS, not only A-GPS...
-lorelei
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2009-09-04
, 08:44
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Posts: 479 |
Thanked: 641 times |
Joined on Dec 2007
@ Switzerland
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#5
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Originally Posted by benny1967
woops, should have been the other way around....my bad.
... only a-gps???
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2009-09-04
, 08:50
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Posts: 2,802 |
Thanked: 4,491 times |
Joined on Nov 2007
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#6
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Originally Posted by benny1967
There's a lot of confusion about the term A-GPS, mainly because there are two distinct types and while one of them enhances a standard GPS receiver (by supplying ephemeris/almanac data out-of-band thus improving time-to-first-fix) the other is essentially crippled (the cellular network "owns" your location and feeds it to you on request, usually for a price).
... only a-gps???
| The Following User Says Thank You to lma For This Useful Post: | ||
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2009-09-04
, 08:53
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Posts: 3,790 |
Thanked: 5,718 times |
Joined on Mar 2006
@ Vienna, Austria
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#7
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Originally Posted by lma
really? that's new info for me. never heard that. is this an american thing?
... the other is essentially crippled (the cellular network "owns" your location and feeds it to you on request, usually for a price).
i only know a-gps as an enhancement for gps devices.
| The Following User Says Thank You to benny1967 For This Useful Post: | ||
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2009-09-04
, 09:40
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Posts: 3,319 |
Thanked: 5,610 times |
Joined on Aug 2008
@ Finland
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#8
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Originally Posted by lma
Except that other is not called AGPS if I understand correctly what you're referring to
the other is essentially crippled (the cellular network "owns" your location and feeds it to you on request, usually for a price).
Cell tower based triangulation, eGPS and many more positiong technologies may be more carrier oriented/based, but they're not AGPS.
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2009-09-04
, 10:25
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Posts: 2,802 |
Thanked: 4,491 times |
Joined on Nov 2007
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#9
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From the wikipedia entry I linked to above:
Ie, the device does have a GPS receiver but doesn't calculate the position itself. It sends the raw data it gets from the "birds" (which may not be enough for the calculation anyway) to the assistance server, the server adds its own data, performs the calculation and sends the coordinates back. It's a bit useless unless you are in range of a supporting cell network, which is why a lot of people are wary of the term.
The N900 sounds like it uses the "good" kind of A-GPS, let's just hope it performs better than its predecessor.
Assistance falls into two categories:
[...]
Calculation of position by the server using information from the phone.
* The assistance server has a good satellite signal, and plentiful computation power, so it can compare fragmentary signals relayed to it by cell phones, with the satellite signal it receives directly, and then inform the cell phone or emergency services of the cell phone's position.
The N900 sounds like it uses the "good" kind of A-GPS, let's just hope it performs better than its predecessor.
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2009-09-04
, 11:26
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Posts: 40 |
Thanked: 16 times |
Joined on Jul 2007
@ Massachusetts, USA
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#10
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Originally Posted by benny1967
Yes, crippled A-GPS was an American thing. The government (FCC) required all cell phones to be able to give their location information when calling 911 (E911).
really? that's new info for me. never heard that. is this an american thing?
i only know a-gps as an enhancement for gps devices.
Some phones only had the ability to provide location information with the network doing the work. No network = no location information.
This was often referred to as A-GPS, and cause confusion with consumers. To top it of some A-GPS phones have/had no user access to the location information.
EGPS is a newer tech then crippled A-GPS.
http://en.wikipedia.org/wiki/AGPS