Patent ID: 6181939
Filing Date: 2001-01-30
Classification: H04W

Abstract:
A method of processing mobile station data in a mobile communication system which comprises at least a first and a second mobile services switching centre, in which method:a subscriber data of a mobile station are registered in a visitor location register which corresponds to a mobile services switching centre, a coverage area of which the mobile station enters, said method comprises:defining an algorithm by means of which a storage time for the subscriber data of a given mobile station can be determined, the storage time indicating how long the subscriber data of the mobile station has to be stored after the mobile station has left the coverage area of the mobile services switching centre,storing in a memory means information on at least entries of said mobile station into the coverage area of said mobile services switching centre,determining by means of said algorithm and information stored in the memory means the storage time for the subscriber data of said mobile station, andafter the mobile station has left the coverage area of said mobile services switching centre, deleting the subscriber data of said mobile station from the visitor location register after the expiration of the storage time unless the mobile station has re-entered the coverage area of said mobile services switching centre.