I am sorry guys but seems like u went to a debate without any ammo. Since you guys got a lot of challenge questions for me, I have 2 for U people.
1. If your phone does not need a cell tower and a data transmission, U are claiming that ur phone has a standalone GPS type. Now can you pls. post a link that proved that ur phone has a Standalone GPS aside from the mentioned phone with standalone A-GPS.
2. If your phone uses cell towers and the data transmitted is free so how does your phone perform navigation with radio off? How will the free data transmission come in?
ANd here for All disbelievers:
A-GPS utilizes data from a satellite reference network that is continually updated in the TCS XLP A-GPS Server.
The TCS A-GPS Server sends this aiding data to the mobile over an Internet Protocol (IP) connection established by the mobile. The Aiding Data assists the GPS receiver in the mobile handset to determine where to acquire overhead satellites. This significantly increases the sensitivity of the device so it works effectively from inside a briefcase or pocket. The Time to First Fix of the device is quicker, helping keep battery consumption to a minimum. The combined features make TCS' A-GPS Server the most accurate and commercially viable option for mobile positioning.
Taken from here:
http://findarticles.com/p/articles/m...3/ai_113529025
and pls. read the links that I posted earlier. It will help U understand. i will do my best to help U understand until U agree.