초록 ▼

A system and method that uses an advanced positioning system in combination with a cellular communication network to improve the performance of the network is disclosed. The system is capable of receiving an identification number for a mobile unit as well as a location code. In order to determine if

A system and method that uses an advanced positioning system in combination with a cellular communication network to improve the performance of the network is disclosed. The system is capable of receiving an identification number for a mobile unit as well as a location code. In order to determine if the mobile unit is a fraudulent user of the cellular communication network, the system compares the location code with a previously received location code. Since there are natural physical constraints on how quickly a mobile unit can move from one location to another, the system can thereby determine if there are two mobile units using the same identification number. If so, then one is likely a fraudulent user. In addition, the system is capable of assisting the mobile unit by providing the location code to a third party. This is especially beneficial for emergency dispatcher services since, due to the very nature of mobile units, the user of the mobile unit may not know his precise location.

대표청구항 ▼

[ What is claimed is:] [1.] A system for determining whether a mobile unit is a fraudulent user of a cellular communication network, the system comprising:a signaling device for receiving at a mobile switching center a signal comprising a mobile unit identification identifying the mobile unit;a mean

[ What is claimed is:] [1.] A system for determining whether a mobile unit is a fraudulent user of a cellular communication network, the system comprising:a signaling device for receiving at a mobile switching center a signal comprising a mobile unit identification identifying the mobile unit;a means for determining from the identification whether the mobile unit includes a location positioning device;a means for determining whether a next signal at a mobile switching center indicates a present location of the mobile unit within the cellular communication network by use of a global positioning satellite; anda processing device for comparing the present location and the present time with a previous location and a previous time of a mobile unit identified by the mobile unit identification to determine whether two different mobile units are using the same mobile unit identification by determining whether it would be physically possible for the mobile unit identified by the mobile unit identification to have traveled from the previous location at the previous time to the present location at the present time.