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. 09, 2013
Filed:
Mar. 15, 2008
John Michael Walker, The Hague, NL;
John Michael Walker, The Hague, NL;
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
A user equipment (UE) attaches to a first access network, intending to access a packet data network (PDN) via a telecommunications system, and is assigned a PDN System Architecture Evolution (SAE) Gateway (GW). The identity of the PDN SAE GW is registered so that, if the UE attaches to another access network, triggering a new attach procedure, the identity is retrieved. A determination is then made whether the previously-assigned PDN SAE GW may be used for the present communications and, if so, it is reassigned. The identity of the PDN SAE GW is registered in an anchor node, which is in a preferred embodiment a Home Subscriber Server (HSS). If the previously-assigned PDN SAE GW cannot be used, or if the PDN SAE GW must be changed, then the communication is reassigned to a new PDN SAE GW.