Patent · US Active

Service awareness and seamless switchover between client based WiFi access and mobile data network access

US9071959B2 · kind B2 · utility

0Cited by

3References

10Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Yan Cai · Stoughton, US
Canio Cillis · Berlin, DE
Ting Ding · Tuji, CN
Ekkart Leschke · Berlin, DE
Biao Long · Shanghai, CN

Key dates

Filing date	Feb 21, 2013
Grant date	Jun 30, 2015
Priority date	—
Expiry date	Jul 13, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04M15/8055
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A system and method provides seamless switchover of a user device (UE) between a mobile data network and a wireless network while providing policy and charging control (PCC) of the data session in the mobile data network. A mobile core network component is made ASF aware to process user data traffic related to an auto switching function (ASF) server from a UE client located on the UE using a special access point name (APN). The mobile core network component then uses a dedicated deep packet inspection (ASF DPI) for all data transfers to the special APN. The core network component is then able to process the UE data traffic seamlessly as the traffic is toggled between the ASF tunnel the WiFi tunnel. By monitoring the data traffic on the ASF tunnel, the core component (GGSN/PGW) is able to provide PCC for the data session.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.