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. 15, 2014
Filed:
Oct. 17, 2008
Sun Cheul Kim, Daejeon, KR;
Pyung Koo Park, Daejeon, KR;
Seong Moon, Daejeon, KR;
Young Soo Shin, Choongchungnam-do, KR;
Ho Yong Ryu, Daejeon, KR;
Sung Back Hong, Daejeon, KR;
Sun Cheul Kim, Daejeon, KR;
Pyung Koo Park, Daejeon, KR;
Seong Moon, Daejeon, KR;
Young Soo Shin, Choongchungnam-do, KR;
Ho Yong Ryu, Daejeon, KR;
Sung Back Hong, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
The invention relates to a method and an apparatus for controlling seamless handover between heterogeneous networks based on IPv6 over IPv4 tunneling. When IPv6 service is provided using tunneling in an IPv4 based network environment, handover of a mobile terminal between different networks is achieved through switching of an active tunnel and a standby tunnel, and thus handover between different networks is facilitated and data loss is prevented to secure continuity of service provided to the mobile terminal even when the mobile terminal hands over to a heterogeneous network.