A method and system for a low-overhead mobility management...

H - Electricity – 04 – L

Patent

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Details

H04L 29/06 (2006.01) H04L 12/56 (2006.01) H04L 29/12 (2006.01)

Patent

CA 2438929

A system and method for supporting mobile Internet communication is provided which employs a plurality of Routers and a plurality of Mobile Nodes (MNs). Each Router has a unique communication address. Each MN is associated with a home Router. Each Router has an associated Mobile Node Location List identifying each MN for which the Router is the home Router and the communication address of a Router corresponding to a current location of each such MN. Each MN is movable from an old location where the MN communicates with the Internet via one Router to a current location where the MN communicates with the Internet via a different Router. Communication at the current location via the different Router is established by communicating to the MN's home Router the communication address of the different Router as the communication address corresponding to the MN's current location. Accordingly, a data communication from a corresponding node (CN) to a selected MN is communicated to the selected MN by accessing the Mobile Node Location List of the selected MN's home Router to determine the communication address corresponding to the selected MN's current location and directing the data communication to that determined communication address.

L'invention concerne un système et un procédé pour communications mobiles sur Internet, faisant intervenir une pluralité de routeurs et une pluralité de noeuds mobiles. Chaque routeur comporte une adresse de communication unique. Chaque noeud mobile est associé à un routeur d'origine. Chaque routeur est associé à une liste d'identification de site de noeud mobile identifiant les noeuds mobiles pour lesquels le routeur est le routeur d'origine, d'une part, et l'adresse de communication d'un routeur correspondant au site actualisé de ces noeuds mobiles, d'autre part. On peut déplacer un noeud mobile, depuis son site antérieur de connexion Internet via un routeur, vers un site actualisé, sur lequel la connexion Internet fait intervenir un routeur différent. La connexion Internet du site actualisé, via ce nouveau routeur, est établie par transmission de l'adresse de communication du nouveau routeur au routeur d'origine, en tant qu'adresse de communication pour le site actualisé. La transmission de données s'effectue ainsi, depuis un noeud correspondant vers un noeud mobile déterminé, compte tenu de la liste d'identification associée au routeur d'origine du noeud mobile déterminé, ce qui permet d'identifier l'adresse de communication correspondant au site actualisé du noeud mobile déterminé et d'orienter la transmission de données vers l'adresse de communication en question.

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