Re:Why do people keep coming to this couple’s home looking f...
by TickleSteve on Thursday January 21, 2016 @06:23PM
(#10949364)
AGPS isnt similar to GPS... it is GPS.
Like you say the almanac (and ephemeris) data is preloaded over an IP network to provide for a better TTFF (Time-To-First-Fix).
Also since the locations of the currently associated mobile tower is known, that is used as a seed for the GPS fix (or even a crude triangulation based on the signal strength from multiple towers).
Like you say the almanac (and ephemeris) data is preloaded over an IP network to provide for a better TTFF (Time-To-First-Fix).
Also since the locations of the currently associated mobile tower is known, that is used as a seed for the GPS fix (or even a crude triangulation based on the signal strength from multiple towers).