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:
Jul. 28, 2015
Filed:
May. 14, 2010
Fang HU, Shenzhen, CN;
Fang Hu, Shenzhen, CN;
ZTE Corporation, Shenzhen, CN;
Abstract
The present disclosure provides a method, system and device for processing the release failure of a PDN. The method includes: a UE, when the UE determines that it currently connects with at least two PDNs, sends a PDN release request message to an EPC and then receives a release rejection message from the EPC, wherein a rejection reason is that the last PDN connection is not allowed to be released; and the UE releases each PDN connection with the EPC and then resets up a PDN connection with the EPC. Through the technical solution, the PDN connection information of the UE and that of the EPC are kept consistent, so that resources are saved and the reliability of data transmission is improved.