[mecreyes]

It depends, if you are reloading google maps (or any nav package) after a very short timeframe, a standalone acquisition would require a "Warm or Hot start". However, the constellation of GPS satellites are in orbit therefore they are moving. After a period of time, a different set of sat's will appear, and a new acquisition is required to triangulate your position.

If you are on an unlimited data plan, I recommend taking advantage of the AGPS. It will give a fix in mere seconds - cold or warm start, indoor even (which you will have to move outdoors).