Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2004-12-22
2010-06-29
Pham, Chi H (Department: 2471)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C455S433000, C709S249000
Reexamination Certificate
active
07746876
ABSTRACT:
The present invention relates to moving networks in communication systems. An object of the invention is to provide moving network nodes (205, 206) in a moving network (201) with the ability to simultaneously access several external access networks (211, 212, 213) accessible by different mobile routers (204, 207) such that a data packet directed to an address external to the moving network can be sent from a moving network node via any of the mobile routers (204, 207) and via a tunnel setup in any of the simultaneously accessible external accesses to a home agent (216) in a home network (215) of the mobile router. This is achieved by synchronizing between the mobile routers data regarding the external accesses of each mobile router, and, when a data packet is received at a first mobile router (204), the first mobile router selects external access based on the synchronized external access information, information in the data packet and optionally also based on access selection policies. If a selected access belongs to e.g. a second mobile router (207), the packet is forwarded from the first mobile router to the second mobile router before it is sent to the home agent (215) via the tunnel setup through the selected access (211).
REFERENCES:
patent: 2004/0029555 (2004-02-01), Tsai et al.
patent: 2004/0032852 (2004-02-01), Thubert et al.
patent: 2005/0058100 (2005-03-01), Lee et al.
Larsson Tony
Pettersson Mattias
Rune Johan
Cameron Michael G.
Mohebbi Kouroush
Pham Chi H
Telefonaktiebolaget L M Ericsson (Publ)
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