These four below technologies require Hardware and/or Software changes in the Handset Information from Satellite and Netowrk or a combination of both
TDOA: Time Difference of Arrival -- Time difference measurement from servera Base Stations
EOTD: Enhanced Observed Time Difference (for GSM)
GPS: Autonomous Information from Satelites only. Full Space search, slow fix timed
A-GPS: Assisted GPS - Information from seceral Satellities and GPS Network. Reduxced space search
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Below here are technologies that the Network Computes Position with no hardware or software computation in MS and works with Legacy Phones
Cell-ID Finger Print
FLT, AOA, EOA
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Question does anyone work with these technologies directly and could give some input reguarding these technolgies and the viability and business expense in the real world????
-------Jay Aguilar
Java Archictect, Brew Developer, Wireless Consultant/Developer in the Silicon Valley
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Received on Sat Sep 22 03:38:56 2001