The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 22, 2002
Filed:
Oct. 30, 1998
Applicant:
Inventor:
Jaana Hurme, Tampere, FI;
Assignee:
Nokia Telecommunications Oy, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/66 ;
U.S. Cl.
CPC ...
H04M 1/66 ;
Abstract
A method and apparatus implementing the method for detecting copying of an international mobile subscriber identity in a mobile communication network in which the location of mobile stations is updated in at least one register of the network. According to the method, the number of at least one type of location updatings (advantageously inter-MSC) is monitored within a predetermined monitoring period (e.g. 24 hours). This number is compared to a predetermined threshold value, and if the number of location updatings exceeds the predetermined threshold value, a signal indicative of the exceeding will be generated.