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Method and apparatus for providing local breakout in a mobile network

A mobile network and network address translation technology, applied in the local breakthrough field, can solve the problems of not knowing and using each IP address, etc.

Inactive Publication Date: 2013-07-10
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The MN may be able to use multiple IP addresses, but it may not know how each IP address should be used

Method used

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  • Method and apparatus for providing local breakout in a mobile network
  • Method and apparatus for providing local breakout in a mobile network
  • Method and apparatus for providing local breakout in a mobile network

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Experimental program
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Embodiment Construction

[0036] refer to figure 1 , a mobile node (MN) is connected to a visited network operated by a different network operator than the MN user's home network operator. In the home network domain, the GMM anchor serves the MN as a global mobility anchor. In the visited network domain, the LMM anchor serves the MN as a local mobility anchor. In each network, a unique IP address is assigned to the mobile node, wherein the IP addresses are respectively a global home address (GhoA) and a local home address (LhoA). The mobile node uses its GHoA for its communication. An LBO Gateway (LBOGW) is located at each of the GMM anchors and LMM anchors.

[0037] The mobility protocol between the GMM and LMM anchors is used to convey the information exchanged between the LBO gateways, such as LBO policy information, a list of IP addresses assigned to the MN, and so on. Negotiation of LBO policies is also performed between the LBO gateways.

[0038] User traffic can be broken out locally or tun...

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Abstract

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.

Description

technical field [0001] The present invention relates to the field of local breakout in mobile networks. Background technique [0002] In mobile networks, users are considered to be "roaming" when they use the network outside their home network. Any media sent from the user's mobile node in the visited network is sent to the home domain gateway through the visited domain gateway. The home domain gateway is located in the user's home network. The media is then delivered to a network node for onward transmission or as the final destination of the media. [0003] The term "local breakout (LBO)" is used to refer to the situation where traffic from a mobile node (MN) in a visited network is not routed through the user's home network, but is routed differently. Control and management of said routing advantageously belongs to the home network in order to apply any relevant policies regarding local breakouts. LBO can reduce the load on the home network in case the media is not ro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04W88/16H04W8/085H04W80/04H04W8/12H04W8/082
Inventor S·苏吉莫托R·卡托T·奥达
Owner TELEFON AB LM ERICSSON (PUBL)