A system of cell phone positioning in real time is provided with specialized
location
device installations on multiplicity of base stations BSs in CDMA and TDMA cellular
communication networks. The purpose of the positioning system is to enable tracking
and locating large quantities of anonymous mobile cell phones MS in any number
of network cells to be used for real time traffic-forecasting systems, emergency
services E911, and other client-initiated position requests. Location data thus
obtained can be continuously updated from vehicular-based cellular phones, collected,
processed and used as a basis for input to intelligent transportation systems,
such as real time urban traffic guidance for vehicular congestion and intelligent
traffic control systems. The system is capable of covering large urban geographical
areas and number of independent cell structures serving thousands of mobile cell
phone clients. It is an independent plug-in solution with specialized synchronized
location device installations in each cell BS. Centrally located specialized location
software based on Time of Arrival (TOA) and Time Difference of Arrival (TDOA) methods
for high speed location processing in central Location Database Server (LDS). The
inventive system consists of number of component functions: Operator-initiated
functions, location device functions and software enabled positioning functions.
