Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2004-09-24
2009-02-03
Corsaro, Nick (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S433000, C726S015000, C370S351000
Reexamination Certificate
active
07486951
ABSTRACT:
An apparatus dynamically assigns external home agent (HA) for VPNs and a method for the same is proposed. The apparatus establishes VPN between an internal network and at least one external network, whereby a mobile node (MN) can roam in the external network with security. The external HA closest to the MN in the visited external network is selected for mobility management of the MN. The MN only needs to register with the same external HA when roaming in the same external network. The handoff latency and end-to-end latency for a roaming MN, therefore, could be reduced significantly. It will also not reestablish the IPsec tunnel within the same external network.
REFERENCES:
patent: 7174018 (2007-02-01), Patil et al.
patent: 2003/0217145 (2003-11-01), Leung et al.
patent: 1075123 (2001-02-01), None
Chen, Yu, Dynamic Home agent Reassignment in Mobile IP, 2002, IEEE, http://ieeexplore.ieee.org/iel5/7793/21425/00993460.pdf, pp. 44-48.
Chen Jyh-Cheng
Lin Li-Wei
Liu Yi-Wen
Brooks Shannon R
Corsaro Nick
Zyxel Communications Corporation
LandOfFree
Apparatus of dynamically assigning external home agent for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus of dynamically assigning external home agent for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus of dynamically assigning external home agent for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4074328