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. 11, 2011
Filed:
Jan. 07, 2008
Kyung-joo Suh, Seoul, KR;
Beom-sik Bae, Suwon-si, KR;
Dae-gyun Kim, Seongnam-si, KR;
Jung-soo Jung, Seongnam-si, KR;
Veronica Kondratieva, Suwon-si, KR;
Yong Chang, Seongnam-si, KR;
Nae-hyun Lim, Yongin-si, KR;
Jung-shin Park, Seoul, KR;
Dae-woo Lee, Seoul, KR;
Jun-hwan OH, Yongin-si, KR;
Kyung-Joo Suh, Seoul, KR;
Beom-Sik Bae, Suwon-si, KR;
Dae-Gyun Kim, Seongnam-si, KR;
Jung-Soo Jung, Seongnam-si, KR;
Veronica Kondratieva, Suwon-si, KR;
Yong Chang, Seongnam-si, KR;
Nae-Hyun Lim, Yongin-si, KR;
Jung-Shin Park, Seoul, KR;
Dae-Woo Lee, Seoul, KR;
Jun-Hwan Oh, Yongin-si, KR;
Samsung Electronics Co., Ltd, , KR;
Abstract
A handoff method between a source network to which a terminal is connected in order of a Base Station (BS) and an Access Service Network (ASN), and a target network to which the terminal is connected in order of a Packet Data Service Node (PDSN), a Packet Control Function (PCF) and an Access Network (AN). The terminal sends a handoff request message with AN information of the target network to the ASN via the BS. The ASN forwards the handoff request message to the PCF via the PDSN using the AN information. Upon receipt of the handoff request message, the PCF sends a request for session information to the ASN via the PDSN. The PDSN sends a request for context information to the ASN. Upon receipt of the session information request and the context information request, the ASN transfers the context information to the PDSN and transfers the session information to the AN via the PDSN and the PCF.