What is the difference between assisted-gps on the new windows mobile cell phones and normal gps?

Similar questions: difference assisted gps windows mobile cell phones normal gps.

Consumer Electronics > Cell Phones & Accessories.

It's whether the phone has a true GPS receiver Many phones (not just Windows Mobile models) can use assisted GPS. Effectively, it's using the phone's data connection to the cellular towers to make an educated guess as to your position through triangulation and other techniques. It's not as accurate as a real GPS receiver, but it's usually close enough and it works where real GPS might not work due to the satellite being blocked.

Even phones with real GPS sometimes have assisted GPS, since it can help speed up the satellite fix or provide just enough positioning info to keep track while you pass through a tunnel or in a maze of skyscrapers. Sources: Wikipedia entry for "Assisted GPS" .

The difference is... A-GPS doesn't actually use the GPS satellites or, if it does, it still primarily uses the cell towers to triangulate position. A lot of the time, a-gps is also locked to be used by a few pieces of software, usually ones provided by the service provider (ex. Verizon Navigator).

Normal gps primarily relies on the GPS satellites and the functionality can typically be used by all software on the phone that is capable of using gps (ex. Google Maps) .

Speed If I recall correctly A-GPS uses cell towers to help pin point your device a lot faster than a regular GPS solution does which can take a minute or two to find your location.

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