Method for locating a user equipment with respect to a motor vehicle

A method for locating a user equipment with respect to a motor vehicle, including the following steps, carried out iteratively when the user is in motion: determining what is referred to as the “inter-object” distance between an ultra-wideband communication module of the vehicle and the user equipment; computing what is referred to as the “inter-step” distance covered by the user between two consecutive steps based on the measured acceleration and orientation values; and cross-referencing the determined inter-object distance and the computed inter-step distance in order to determine at least one probable location zone of the user equipment. The iterations ending when a single probable location zone of the user equipment with a surface area smaller than a predefined surface area has been determined. The single probable location zone then corresponding to the location of the user equipment around the vehicle.