Patent ID: 7920873

Claim:
A method of locating mobile communications terminals (T) each comprising an assisted satellite positioning device (D), adapted to be connected to a satellite positioning installation (CS) connected to an assistance data server (SDA), which method is characterized in that, in the event of a location request from a mobile terminal (T), it sets up a USSD transport channel between the device (D) of said terminal and a location management equipment (EGL) of the parent cellular network of said terminal connected to said server (SDA) and then sends said terminal (T) via said USSD transport channel assistance data representative of identifiers of at least three satellites (SN) visible in the cell in which it is situated with the result that its device (D) locks onto said satellites (SN) in order to estimate each distance between a satellite and its terminal (T) with a view to determining the position of the terminal.