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Just wanted to know what are the differences bet. the two and that what do they let a phone do?
i read somewhere that v800 has AGPS...what does this mean?
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Posted: 2004-12-16 12:48:19
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What is AGPS?
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Posted: 2004-12-16 13:03:07
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If someone can help?
This message was posted from a K700i
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Posted: 2004-12-16 13:37:17
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From
Wikipedia
AGPS
From Wikipedia, the free encyclopedia.
AGPS or assisted GPS is a variant of GPS used in cell phones. It uses an assistance server to cut down the time needed to find the location.
In a self-contained GPS receiver, the receiver contains such pieces a radio, signal processor, geospatial almanac, conversion functions, and optional positional reference data (e.g. maps), all of which together provide the viewing user with understandable information about their position e.g. latitude and longitude.
In AGPS however, the handheld device only (necessarily) contains a radio and signal processor. The results of the GPS signal receipt and processing are then passed over the wireless network, to be interpreted by the assistance server located elsewhere. The assistance server then performs the necessary math and conversions to determine the map location of the handheld.
This method minimizes the amount of memory and hardware that must be integrated into mobile devices in order to provide GPS-quality device locating ability as required by E911.
This article is a stub. You can help Wikipedia by expanding it (http://en.wikipedia.org/w/wiki.phtml?title=AGPS&action=edit).
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Posted: 2004-12-16 13:43:24
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AGPS "Assisted Global Positioning System"
Advantages:
- smaller size (as krubach mentioned)
- recognition speed (due to the fact that the broadcast cell where the phone is logged in already gives an 'idea' where the person / device is
- less battery power drain because less data has to be exchanged
disadvantage
intervisibility is required to perform. Already bad weather conditions could disturb the signal, an useful indoor or car use is currently not possible
http://www.areamobile.de/specials/special_agps_drei.php (german
)
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Posted: 2004-12-16 13:49:03
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Thanks
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Posted: 2004-12-16 14:58:14
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