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:
Aug. 02, 2011
Filed:
Apr. 18, 2007
Louis J. Guccione, East Chester, NY (US);
Inhyok Cha, Yardley, PA (US);
Alexander Reznik, Titusville, NJ (US);
Chunxuan YE, King of Prussia, PA (US);
Renuka Racha, Kings Park, NY (US);
Louis J. Guccione, East Chester, NY (US);
Inhyok Cha, Yardley, PA (US);
Alexander Reznik, Titusville, NJ (US);
Chunxuan Ye, King of Prussia, PA (US);
Renuka Racha, Kings Park, NY (US);
InterDigital Technology Corporation, Wilmington, DE (US);
Abstract
A wireless transmit/receive unit (WTRU) and a Node B, respectively, perform joint randomness not shared by others (JRNSO) measurement to generate JRNSO bits based on a channel estimate between the WTRU and the Node B. The WTRU and the Node B then perform a reconciliation procedure to generate a common JRNSO bits. The Node B sends the common JRNSO bits to a serving network. The WTRU and the SN secure a session key (such as an integrity key, a cipher key and an anonymity key), using the common JRNSO bits. The JRNSO measurements are performed on an on-going basis, and the session key is updated using a new set of common JRNSO bits. The JRNSO bits may be expanded by using a pseudorandom number generator (PNG) or a windowing technique. A handover may be intentionally induced to increase the JRNSO bits generation rate.