DE202005019276U1

5G,4G,3G,2G

Title

Not Available

Application Number:

DE20052019276U

Publication Date:

10-08-2006

Current Assignee:

Family ID:

Application Date:

09-12-2005

Declaring Company:

Publication Country:

US

Priority Date:

09-12-2004

Title

Not Available

Application Number:

DE20052019276U

Family ID:

Publication Country:

US

Publication Date:

10-08-2006

Application Date:

09-12-2005

Priority Date:

09-12-2004

Current Assignee:

Declaring Company:

Abstract  Abstract

In a wireless communication system comprising at least one cellular network, at least one local wireless network (WLAN), and an IP Multimedia Subsystem (IMS), a cellular network cooperation system and the WLAN for a user service provided by the IMS wherein the system comprises: a cellular network comprising a radio access network and a core network, the core network comprising a Packet Data Gateway (PDG), a Serving GPRS Support Node (SGSN), and a GPRS Gateway Support Node (GGSN); a WLAN configured to establish a tunnel to the PDG, which further establishes a tunnel to an IMS; and a dual-mode WTRU comprising: a WLAN interface for communicating with the WLAN, wherein the WLAN interface calls a user service and receives the user service through the WLAN; a cellular interface for communicating with the cellular network; and a handover unit for performing a handover from the WLAN to the cellular network by passing a handover request through the WLAN ...

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.