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:
Feb. 22, 2011
Filed:
Sep. 27, 2007
Shamim Akbar Rahman, Montreal, CA;
Khalid Shamsuddin Hossain, Montreal, CA;
Michelle Perras, Montreal, CA;
Hyun Wook Kim, Kyunggi-Do, KR;
Yong Sun Cho, Seoul, KR;
Suan Eoh, Seoul, KR;
Jean-ian Boutin, Montreal, CA;
Shamim Akbar Rahman, Montreal, CA;
Khalid Shamsuddin Hossain, Montreal, CA;
Michelle Perras, Montreal, CA;
Hyun Wook Kim, Kyunggi-Do, KR;
Yong Sun Cho, Seoul, KR;
Suan Eoh, Seoul, KR;
Jean-Ian Boutin, Montreal, CA;
InterDigital Technology Corporation, Wilmington, DE (US);
SK Telecom, Co. Ltd., Seoul, KR;
Abstract
A wireless transmit/receive unit (WTRU) may include an IEEE 802.16 modem, a universal mobile telecommunication system (UMTS) modem and a media independent handover (MIH) entity. Software application programming interfaces provide the MIH entity with mechanisms to receive information about IEEE 802.16 and UMTS links, control IEEE 802.16 and UMTS modems for handover, discover an MIH server and IP multimedia system nodes, trigger mobile IP handover, etc. If an IEEE 802.16 link has been successfully established, the MIH entity starts an MIH session. When the IEEE 802.16 modem indicates that a connection is going to be terminated, the MIH entity activates the UMTS modem for handover. If the IEEE 802.16 modem indicates that a link parameter has crossed a threshold, the MIH entity sends IEEE 802.16 and WCDMA signal measurements to an MIH server. After receiving an MIH switch request, the MIH entity initiates handover to the UMTS network.