Method and apparatus for providing local breakout in a...

H - Electricity – 04 – W

Patent

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H04W 88/16 (2009.01) H04W 80/04 (2009.01)

Patent

CA 2696988

There is provided a Local Breakout Gateway node for use in a hierarchical mobile network. The node comprises a database, which stores a plurality of Local Breakout Policy rules. The node further comprises a receiver for receiving an IP packet from a Mobile Node attached to the network at which the node is located, the network being a visited network for the Mobile Node. The node further comprises means for selecting a Local Breakout Policy from the plurality of Local Breakout Policy rules, and means to apply the selected Local Breakout Policy to the received IP packet. The node further comprises a Network Address translation function to apply a Network Address Translation to the received IP packet, and a transmitter for sending the IP packet to a destination according to the applied Local Breakout Policy.

L'invention concerne un nud passerelle de sortie locale à utiliser dans un réseau mobile hiérarchique. Le nud comporte une base de données qui stocke une pluralité de règles de politique de sortie locale; un récepteur qui reçoit un paquet IP d'un nud mobile rattaché au réseau dans lequel le nud est localisé, le réseau étant un réseau visité pour le nud mobile; des moyens qui sélectionne une politique de sortie locale à partir de la pluralité de règles de politique de sortie locale et des moyens qui appliquent la politique de sortie locale sélectionnée au paquet IP reçu; une fonction de traduction d'adresse réseau qui applique une traduction d'adresse réseau au paquet IP reçu et un émetteur qui envoie le paquet IP à une destination conformément à la politique de sortie locale appliquée.

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