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.

Date of Patent:
Feb. 19, 2008

Filed:

Jun. 29, 2004
Applicants:

Jianhao Michael Yang, San Diego, CA (US);

Sarvesh Asthana, San Diego, CA (US);

Krishna Kumar, San Diego, CA (US);

Inventors:

Jianhao Michael Yang, San Diego, CA (US);

Sarvesh Asthana, San Diego, CA (US);

Krishna Kumar, San Diego, CA (US);

Assignee:

Nokia Corporation, Espoo, FI;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A system for handing off a mobile node includes a mobile node and a target foreign agent. To effectuate a handoff of the mobile node from an anchor foreign agent to the target foreign agent, a tunnel can be established therebetween such that data packet(s) sent between the mobile node and a correspondent node pass between the target foreign agent and the anchor foreign agent through the tunnel. After the tunnel is established, the mobile node can register with the target foreign agent to thereby bind the mobile node to the target foreign agent such that data packet(s) sent between the mobile node and the correspondent node pass through the target foreign agent to the correspondent node independent of the anchor foreign agent and the tunnel. Thereafter, the target foreign agent can close the tunnel between the target foreign agent and the anchor foreign agent.


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