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:
Mar. 17, 2015
Filed:
Oct. 17, 2011
Suli Zhao, San Diego, CA (US);
Ajith T. Payyappilly, San Diego, CA (US);
Shrawan K. Khatri, San Diego, CA (US);
Siddharth D. Chitnis, San Diego, CA (US);
Suli Zhao, San Diego, CA (US);
Ajith T. Payyappilly, San Diego, CA (US);
Shrawan K. Khatri, San Diego, CA (US);
Siddharth D. Chitnis, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A method for maintaining IP context during an inter RAT handover of a UE between an eHRPD network and an LTE network may include delaying a transfer of an Internet Protocol context for at least one active packet data network until an IP address for an attach (PDN) Packet Data Network has been assigned and in the case where the Internet Protocol address for the Attach Packet Data Network is not assigned, initiating a detach operation from the LTE network without the user equipment losing the Internet Protocol context of the at least one active Packet Data Network.