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.:

US 8260294 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 04, 2012

Filed:

Oct. 29, 2007
Applicants:

Sung Soo Kang, Daejeon, KR;

Sang-kwon Kim, Daejeon, KR;

Inventors:

Sung Soo Kang, Daejeon, KR;

Sang-Kwon Kim, Daejeon, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01);
U.S. Cl.
CPC ...
Abstract

There is provided a method of processing Internet Protocol (IP) handoff of a mobile node in a network system, in which the IP handoff is processed distinguishing a signal packet path for the IP handoff from a data packet path the method including receiving a registration request message when the mobile node moves to an arbitrary mobile agent, the message received from the mobile node via the mobile agent to which the mobile node moves; transmitting the received registration request message to a mobile agent where the mobile node is previously located, without change, according to whether an entry with respect to the mobile node exists in preset visitor list; and transmitting a registration reply message with respect to the registration request message to the mobile agent without change.


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