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Maybe our feelings are wrong about A-GPS.
1.) Possibly assisted GPS is "full satellite GPS with assistance" meaning that when a phone cannot obtain a satellite fix, then it can triangulate a position. For example, use in a building during emergency situations.
Or
2.) A-GPS chips do not have an antenna, or have one that is not tuned to accept the number of satellites required for a fix of <10m, therefore it also uses triangulation to better resolve the phones coordinates. (maybe a space saving cheaper way to go)
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