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Finding copied sim cards

申请公布号:AU6624998(A)

申请号:AU19980066249

申请日期:1998.03.06

申请公布日期:1998.09.29

申请人:
NOKIA TELECOMMUNICATIONS OY

发明人:JAANA HURME

分类号:H04W12/00;H04L29/06;H04W12/06

主分类号:H04W12/00

摘要: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.

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