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:
Oct. 13, 2009
Filed:
Dec. 15, 2004
Applicants:
Jukka Vialen, Espoo, FI;
Fabio Longoni, Espoo, FI;
Inventors:
Jukka Vialen, Espoo, FI;
Fabio Longoni, Espoo, FI;
Assignee:
Nokia Corporation, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04K 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method of ciphering data transmission in a radio system, and to a user equipment using the method, and to a radio network subsystem using the method. The method includes the steps of: () generating a ciphering key; (A) producing a ciphering mask in a ciphering algorithm using the ciphering key as an input parameter; (B) using a logical channel specific parameter or a transport channel specific parameter as an additional input parameter to the ciphering algorithm; and () producing ciphered data by applying the ciphering mask to plain data.