Hand-off notifying and controlling method of mobile node

Details Hand-off notifying and controlling method of mobile node Hand-off notifying and controlling method of mobile node

2007-03-20

2007-03-20

Pezzlo, John (Department: 2617)

Multiplex communications

Communication over free space

Portable address responsive receiver

C370S331000, C370S455000

Reexamination Certificate

active

10026520

ABSTRACT:
A hand-off notifying and controlling system of a mobile node is disclosed including a mobile node (MN) that transmits a registration request message. An old foreign agent (FA) provides a mobile IP service to the MN, before the hand-off takes place. A new FA provides a mobile IP service to the MN, after the hand-off takes place. A home agent (HA) generates and transmits a registration release message to the old FA, upon receipt of the registration request message from the MN via the new FA. When the MN is handed off, since the HA deletes the previous registration of the MN, registered in the old FA, the waste of memory resources and registration lock dead can be simply and effectively reduce or solved.

REFERENCES:
patent: 5915220 (1999-06-01), Chelliah
patent: 6549522 (2003-04-01), Flynn
patent: 6891819 (2005-05-01), Inoue et al.
patent: 6988146 (2006-01-01), Magret et al.
patent: 2002/0089958 (2002-07-01), Feder et al.
patent: 08237727 (1996-09-01), None
Pete McCann, draft-ietf-mobileip-sessionid-00.txt, Mar. 2000, Internet Draft, 4-7.

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