United States Patent 9,686,721
Shaheen June 20, 2017
Method and system for interworking of cellular networks and wireless local area networks
Abstract
A method and system for interworking between cellular networks and wireless local area networks (WLANs) are disclosed. At least one cellular network, at least one WLAN, and an IP network may be deployed. A wireless transmit/receive unit (WTRU) may establish a connection to a WLAN and a tunnel between an access point (AP) and a packet data gateway (PDG) may be established. The PDG may establish a tunnel to an IP network. The WTRU may invoke a service which is delivered through the WLAN. As signal quality from the AP degrades below a predetermined threshold, a handover from the WLAN to the cellular network may be performed. A new connection to the cellular network may be established either before or after breaking the current connection to the WLAN or the two connections may be maintained simultaneously.
Inventors:
Shaheen; Kamel M. (King of Prussia, PA)
Applicant:
Name
City
State
Country
Type
Shaheen; Kamel M.
King of Prussia
PA
US
Assignee:
InterDigital Technology Corporation (Wilmington, DE)
Family ID:
1000002661623
Appl. No.:
13/412,198
Filed:
March 5, 2012
Prior Publication Data
Document Identifier
Publication Date
US 20120163341 A1 Jun 28, 2012
Related U.S. Patent Documents
Application Number
Filing Date
Patent Number
Issue Date
11285684 Nov 22, 2005 8130718
60634679 Dec 9, 2004
Current U.S. Class: 1/1
Current CPC Class: H04W 36/0022 (20130101); H04W 36/14 (20130101); H04W 84/12 (20130101); H04W 92/02 (20130101)
Current International Class: H04W 36/14 (20090101); H04W 36/00 (20090101); H04W 88/16 (20090101); H04W 92/02 (20090101); H04W 84/12 (20090101)
Field of Search: ;370/331 ;455/436-444
PPP
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