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:
Apr. 06, 2010
Filed:
Dec. 10, 2002
Guillaume Bichot, Princeton, NJ (US);
John Richardson, Hamilton Square, NJ (US);
Guillaume Bichot, Princeton, NJ (US);
John Richardson, Hamilton Square, NJ (US);
Thomson Licensing, Boulogne-Billancourt, FR;
Abstract
A method for performing a handover of a mobile terminal between a 3G cell and a WLAN cell when the mobile terminal moves within a 3G cell into the coverage area of the WLAN cell. The present invention proposes that the handover be performed when there are no active calls. If there are ongoing calls, method proposes to wait until the calls are terminated before the handover is performed. After the ongoing calls are terminated, the handover is performed by disassociating from the radio access network of the 3G cell and associating with the access point of the WLAN, using the relatively straightforward disassociation and association procedures. The handover method according to the present invention obviates the need for complex and expensive protocols to ensure a seamless and error free handover of calls when moving from the coverage of the 3G cell to the coverage of the WLAN cell. This method can be used with either the loose coupling arrangement or the tight coupling arrangement.