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:
Aug. 06, 2013
Filed:
Aug. 13, 2008
Tae Hoon Kim, Daejeon, KR;
Youngnam Han, Daejeon, KR;
Yonghoon Choi, Seoul, KR;
Deokhoon Lee, Incheon, KR;
Duck Hee Han, Gyeonggi-do, KR;
Tae Hoon Kim, Daejeon, KR;
Youngnam Han, Daejeon, KR;
Yonghoon Choi, Seoul, KR;
Deokhoon Lee, Incheon, KR;
Duck Hee Han, Gyeonggi-do, KR;
Abstract
A handover method in a plurality of wireless networks includes selecting one or more candidate networks from the plurality of wireless networks available to a mobile terminal of a user; calculating the latest connection time with a serving network currently serving the mobile terminal; deriving a history utility function based on the latest connection time; deriving system utility functions of the candidate networks in consideration of user and system environments; deriving selection functions for the candidate networks using the history utility function and the system utility functions; and selecting one of the candidate networks as a target network for handover using the selection functions. A target network for handover is selected using not only a system utility function reflecting user and system parameters but also a history utility function reflecting history information, thereby reducing the number of handovers and enhancing service quality.