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. 09, 2011
Filed:
Nov. 02, 2005
Applicants:
Andrew Farnsworth, Marlbrook, GB;
Mark Dennis Norton, Bromsgrove, GB;
Gideon Roberts, Stone, GB;
Inventors:
Assignee:
Research In Motion Limited, Waterloo, Ontario, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 36/00 (2009.01);
U.S. Cl.
CPC ...
Abstract
A mobile telecommunications system comprises a network of a plurality of cells and at least one user equipment device operable to communicate in the system and to operate in a first RAT and a second RAT. The method comprises, in the user equipment device, determining whether the validity of data stored on the user equipment device will expire within an expiry period, the stored data being for use in handover of operation of the user equipment device from the first RAT to the second RAT.