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:
Feb. 13, 2018
Filed:
Mar. 16, 2012
Wen Luo, Shenzhen, CN;
Wen Luo, Shenzhen, CN;
ZTE Corporation, Shenzhen, Guangdong Province, CN;
Abstract
A packet data network gateway and a UE mobility management system are disclosed. In the packet data network gateway, a context management unit is configured to: when the P-GW is selected as the UE's target P-GW, create a context for the UE and store the UE's context information from S-GW and a source P-GW to which the UE is currently attached; an identity management unit is configured to: assign a location identity including the UE's routing information to the UE. The present invention reselects a P-GW for the UE to attach, thereby eliminating the circuitous routing in the process of the UE connecting and using services, saving transmission bearer resources, reducing transmission delay of data packet, and ensuring that the UE is still reachable after changing the attached P-GW, thus neither the UE nor the peer end is aware of the movement of the UE in the IP level.