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:
Nov. 22, 2011
Filed:
Apr. 08, 2008
Xiaoming Zhao, Plano, TX (US);
Wei Wu, Coppell, TX (US);
James Earl Womack, Bedford, TX (US);
Zhijun Cai, Euless, TX (US);
John-luc Bakker, Keller, TX (US);
Xiaoming Zhao, Plano, TX (US);
Wei Wu, Coppell, TX (US);
James Earl Womack, Bedford, TX (US);
Zhijun Cai, Euless, TX (US);
John-Luc Bakker, Keller, TX (US);
Research In Motion Limited, Waterloo, Ontario, CA;
Abstract
A system comprising an inter-RAT/inter-network redundancy controller (IRC) is provided. The IRC is configured to communicate with a source gateway in communication with a source radio access network (RAN) using a first radio access technology (RAT). The IRC is further configured to communicate with a target gateway in communication with a target RAN using a second RAT. The IRC is further configured to promote a handover of a user equipment from the source RAN connected to the source gateway to the target RAN connected to the target gateway when the source gateway fails.