System and method for providing service to mobile station by radio telecommunication network

• Main Author: CHAMBERS MICHAEL DWAYNE
• Format: Patent
• Language: Chinese; English
• Published: 30.09.2009
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TELEPHONIC COMMUNICATION; WIRELESS COMMUNICATIONS NETWORKS

A method is provided for supplying service to mobile stations (MS) ( 20 ) utilizing a wireless telecommunications network (A). Each of the MS has a home country and a home network and is programmed with an identifier comprising a number including a set of digits. Each identifier is one of two types including a first type of identifier that uniquely identifies its MS globally via the entire set of digits making up the identifier (e.g., a true International Mobile Station Identity (IMSI)) and a second type of identifier that uniquely identifies its MS within its home country via a subset of least significant digits making up the identifier (e.g., a Mobile Identification Number (MIN)-based IMSI). The method includes: obtaining the identifiers from MS entering the wireless telecommunications network during a study period; collecting a subset of most significant digits from each identifier obtained during the study period; compiling a list of digit patterns, each digit pattern in the list corresponding to one of t