Monday, 27 February 2006 12:37 | Alec Barton
The Andrew Geometrix U-TDOA system will cover a network of thousands of cell sites, and initial shipments of product already are underway.
U-TDOA is a network-based means of determining a mobile device's position by comparing and calculating the difference in time required for its signal to reach different base station transceiver sites. Andrew Geometrix also supports the other handset-based and network-based wireless location methods (assisted global positioning system (A-GPS)) in both mobile-based and mobile-assisted versions, Matrix, cell identity (CID), and enhanced cell identity (E -CID) technologies. It also includes the secure user plane location (SUPL) standard. In addition, Andrew employs hybrid location methods that combine features from the individual locating technologies.
Location-based services may be of interest to:
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