MOBILE TERMINAL UNIT FOR PROVIDING VEHICLE POSITION TRACKING SERVICE USING UNSTRUCTURED SUPPLEMENTARY SERVICES DATA PROCOTOL, DEVICE OF VEHICLE POSITION INFORMATION MANAGEMENT AND METHOD THEREOF

摘要

A terminal device using a nonstructural additional service data protocol while preventing the waste of the radio resource and providing an automatic location service, a vehicle position information management device and a method for implementing the same are provided to solve a problem of setting up the IP bearer and receiving the distinct channel. A controller(160) gives THE location information of the vehicles requested from the vehicle position information management device(300) in the set specific field. The information is provided through the nonstructural additional service data protocols. A protocol processing unit(140) performs interfacing with the vehicle position information management device through the nonstructural additional service data protocols. The location information of the vehicles in which the protocol processing portion is delivered from the controller is transmitted.