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. 08, 2008
Filed:
Dec. 14, 2001
Mika Salmivalli, Ylöjärvi, FI;
Mika Salmivalli, Ylöjärvi, FI;
Nokia Siemens Networks Oy, Espoo, FI;
Abstract
The invention relates to a mobile system and especially to detecting, in the mobile system in question, the use of terminal equipment having a copied mobile equipment identity. In the invention, a database containing records is created, each record containing an international mobile equipment identity associated with a mobile station and an international mobile subscriber identity, a check is made to see whether the database contains a record which contains a mobile equipment identity corresponding to the mobile equipment identity transmitted by the mobile station, but whose mobile subscriber identity does not correspond to that transmitted by the mobile station, and if yes, at least a signal is produced, indicating that the mobile equipment identity is possibly a copied one.