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:
Feb. 16, 2010
Filed:
Jul. 31, 2001
Applicants:
Jari Isokangas, Tampere, FI;
Sinikka Sarkkinen, Kangasala, FI;
Inventors:
Jari Isokangas, Tampere, FI;
Sinikka Sarkkinen, Kangasala, FI;
Assignee:
Nokia Siemens Networks Oy, Espoo, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04K 1/00 (2006.01); H04W 36/00 (2009.01); H04L 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to relocation of the control of communication between a first station and a second station from a first communication system controller to a second communication system controller. The communication is ciphered by means of a first ciphering key. In the method, after the initiation of the relocation of control of the communication from the first controller to the second controller a request for relocation is transmitted to the second controller. The request contains the first ciphering key and at least one other ciphering key.