Method of processing mobile station data
First Claim
1. 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, and after 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.
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Accused Products
Abstract
The present invention relates to a method of processing mobile station data in a mobile communication system in which the subscriber data of the mobile station are registered in a visitor location register which corresponds to the mobile services switching center the coverage area of which the mobile station enters, and in which the subscriber data of the mobile station are deleted from the visitor location register after it has left the coverage area. In order to avoid unnecessary deletion and re-registration of the subscriber data, the method comprises the steps of: defining an algorithm in order to determine a storage time for the subscriber data, storing in a memory information on the entries of the mobile station into the coverage area, determining the storage time with the help of the algorithm and the information stored in the memory, and after the mobile station has left the area, deleting its subscriber data from the visitor location register after the expiration of the storage time unless the mobile station has re-entered the coverage area.
125 Citations
9 Claims
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1. 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:
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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, and after 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. - View Dependent Claims (2, 3, 4)
the information is maintained in the memory means for a predetermined period of time from the storage moment, and that when the information stored in the memory means indicates that the mobile station has entered the coverage area of said mobile services switching centre for a predetermined number of times within a predetermined period of time, said algorithm is defined to indicate the longest period of time between a departure from and an entry into said area by the mobile station.
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5. A mobile communication system comprising:
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a mobile station, at least a first and a second mobile services switching centre, a visitor location register which corresponds to the first mobile services switching centre, comprising register means for registering in a memory means a subscriber data of the mobile station having entered the coverage area of the first mobile services switching centre, and deletion means for deleting the subscriber data of said mobile station from the memory means after the mobile station has left the coverage area of the first mobile services switching centre, monitor means storing in a memory information on at least the entries of said mobile station into the coverage area of the first mobile services switching centre, and control means determining, on the basis of the information stored in the memory by the monitor means, a storage time for the subscriber data of the mobile station, the storage time indicating how long the subscriber data of said mobile station have to be stored from the moment the mobile station has left the coverage area of the mobile services switching centre and controlling the deletion means of the visitor location register to delete the subscriber data of said mobile station from the memory means after the mobile station has left the coverage area of the first mobile services switching centre and after the storage time has expired, unless the mobile station has re-entered the coverage area of the mobile services switching centre. - View Dependent Claims (6, 7, 8, 9)
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Specification