Abstract: Location method for locating a portable device (1) from a server (2) configured to communicate with said portable device (1) through a wireless communications network (3), in which said portable device (1) comprises a transmission/receiving module (12), an A-GPS positioning module (11) and a microprocessor (15) configured to manage said modules (11, 12), in which the method comprises the steps of: sending GPS assistance information from the server (2) to the portable device (1) through said wireless communications network (3); obtaining in an A-GPS positioning module (11) of the portable device (1) a GPS signal (4) from a satellite system (8); calculating in said portable device (1) a location of the device (1) itself from said GPS signal (4) and from the GPS assistance information sent by the server (2); sending said location to the server (2) from the transmission/receiving module (12) through said wireless communications network (3).

Abstract: Location method for locating a portable device (1) from a server (2) configured to communicate with said portable device (1) through a wireless communication network (3), with the steps of: sending GPS assistance information from the server (2) to the portable device (1) through said wireless communication network (3); obtaining in an A-GPS positioning module (11) a GPS signal (4) from a satellite system (8); calculating a location of the device (1) itself from said GPS signal (4) and from GPS assistance information; and sending said location to the server (2).

Abstract: Location method for locating a portable device from a server configured to communicate with said portable device through a wireless communications network, comprising the steps of: sending GPS assistance information from the server (2) to the portable device (1) through said wireless communication network (3); obtaining in an A-GPS positioning module (11) of the portable device (1) a GPS signal (4) from a satellite system (8); calculating in said portable device (1) a location of the device (1) itself from said GPS signal (4) and from the GPS assistance information sent by the server (2); sending said location to the server (2). The method further comprises the step of: when the portable device (1) stops, hibernating the A-GPS positioning module (11), the transmission/receiving module (12) and a microprocessor (15) of said portable device (1) managing said modules (11, 12), such that the battery is saved and autonomy of the portable device (1) is thus achieved. Portable device and location system.