Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2011-04-12
2011-04-12
Ahmed, Salman (Department: 2476)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S389000, C370S392000
Reexamination Certificate
active
07924842
ABSTRACT:
There is disclosed a technology in which a packet to be sent to a mobile terminal (an MN), distributed from a correspondent node (a CN), can surely reach the MN even in a situation in which the MN is moving. According to the technology, identification information of a plurality of access routers (ARs)300potentially currently connected to the MN is added to an IP packet to be transmitted from a CN500to an MN200. When the AR receives this IP packet, the AR judges whether or not the MN is connected thereunder. If the MN exists under the AR, the IP packet is transmitted to the MN. On the other hand, if any MN does not exist under the AR, the IP packet is transferred to another AR based on the identification information added to the IP packet. As a result, the IP packet is successively transferred between the plurality of ARs so that the IP packet can be passed to the MN under the AR currently connected to the MN.
REFERENCES:
patent: 2002/0009066 (2002-01-01), Shimizu et al.
patent: 2003/0053427 (2003-03-01), Kanda et al.
patent: 2003/0103496 (2003-06-01), Lakshmi Narayanan et al.
patent: 2003/0214922 (2003-11-01), Shahrier
patent: 2003/0223422 (2003-12-01), Igarashi et al.
patent: 2004/0004967 (2004-01-01), Nakatsugawa et al.
patent: 2004/0071120 (2004-04-01), Grech
patent: 2004/0156346 (2004-08-01), O'Neill
patent: 2005/0128969 (2005-06-01), Lee et al.
patent: 2006/0018291 (2006-01-01), Patel et al.
patent: 2006/0056382 (2006-03-01), Yamada et al.
patent: 2006/0240825 (2006-10-01), Funabiki et al.
patent: 2003092596 (2003-03-01), None
patent: 2004056770 (2004-02-01), None
patent: 2004282249 (2004-10-01), None
patent: 2006041955 (2006-02-01), None
PCT International Search Report dated Apr. 11, 2006.
D. Johnson, et al., “Mobility Support in IPv6,” IETF Mobile IP Working Group, Internet-Draft: draft-ietf-mobileip-ipv6-24.txt, Work-In-Progress, Jun. 30, 2003, pp. 1-172.
A. Conta, et al., “Generic Packet Tunneling in IPv6 Specification,” Network Working Group, Dec. 1998, pp. 1-36.
S. Deering, et al., “Internet Protocol, Version 6 (IPv6), Specification” Network Working Group, Dec. 1998, pp. 1-39.
P. Ferguson, “Network Ingress Filtering: Defeating Denial of Service Attacks which Employ IP Source Address Spoofing,”Network Working Group, Jan. 1998, pp. 1-10.
R. Koodli, Editor, “Fast Handovers for Mobile IPv6” Mobile IP Working Group, Internet Draft: draft-ietf-mipshop-fast-mipv6-01.txt, Work-In-Progress, Jan. 30, 2004, pp. i-ii, and 1-38.
R. Boivie, et al., “Explicit Multicast (Xcast) Basic Specification,” Internet Draft: draft-ooms-xcast-basic-spec-05.txt, Work-In-Progress, Aug. 2003, pp. 1-29.
Y. Ezaki, et al., “Mobile IPv6 handoff bi Explicit Multicast,” Internet Draft: draft-ezaki-handoff-xcast-01.txt, Work-In-Progress, May 2001, 17 pages total.
Aoyama Takahisa
Hirano Jun
Tanaka Takeshi
Ahmed Salman
Dickinson Wright PLLC
Hampton Tarell
Panasonic Corporation
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