Patent ID: 7079850

Claim:
A localization method of a mobile station communicating with at least one central server through a wireless network comprising a plurality of wireless radiofrequency transmitting access points, among which a first access point is chosen to perform the communication, comprising: measuring signal strengths received by said mobile station from the plurality of access points; storing each measured signal strength with an address identifying the corresponding connected access point; comparing said stored signal strengths to values of a predetermined table of signal strength thresholds assigned to access points, the signal strength thresholds defining one or more event zones (EZ), each event zone (EZ) comprising one or more attenuation ranges of one or more access points; and considering the mobile station as located in a given event zone if the measured signal strength corresponding to an access point in the given event zone is within an attenuation range of that access point, in which said attenuation ranges are a function of an environment and of a shape of a event zones (EZ).