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:
Oct. 22, 2013
Filed:
Mar. 24, 2008
Eun-hui Bae, Seoul, KR;
Sung-ho Choi, Suwon-si, KR;
O-sok Song, Suwon-si, KR;
Tae-sun Yeoum, Seoul, KR;
Han-na Lim, Siheung-si, KR;
Jai-yong Lee, Seoul, KR;
Hyun-duk Jung, Seoul, KR;
Kyung-min Kim, Seoul, KR;
Eun-Hui Bae, Seoul, KR;
Sung-Ho Choi, Suwon-si, KR;
O-Sok Song, Suwon-si, KR;
Tae-Sun Yeoum, Seoul, KR;
Han-Na Lim, Siheung-si, KR;
Jai-Yong Lee, Seoul, KR;
Hyun-Duk Jung, Seoul, KR;
Kyung-Min Kim, Seoul, KR;
Abstract
Provided is a handover method, in which a call manager of a network having a Circuit Switching (CS) network, a Long Term Evolution (LTE) network, and an Internet Protocol Multimedia Subsystem (IMS) network, provides handover, from the LTE network to the CS network, to a terminal that uses one radio channel. The handover method includes upon receiving a request for handover from the terminal via a node of the LTE network, establishing a line to a Mobile Switching Center (MSC) of the CS network; sending, to the call manager, a request for a change in a session to another party's terminal in communication with the terminal, to establish an Internet Protocol (IP) bearer between the call manager and the other party's terminal; and sending a handover command to the terminal during the establishment of an IP bearer, to establish a radio channel to the base station of the CS network.