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Device and method for realizing switching among mobile management domains

A mobile management and mobile node technology, applied in the field of mobile management inter-domain switching, can solve problems affecting data forwarding efficiency, restricting network scalability, large data forwarding delay, etc., to ensure communication continuity and effective data forwarding Path, the effect of short communication delay

Inactive Publication Date: 2010-01-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the network-based mobility scheme, the participation of the home domain is required to complete the inter-domain handover. Therefore, the scalability of the network is limited and the efficiency of data forwarding is affected. This will cause the home network to become a communication bottleneck, which will bring Greater data forwarding delay and waste of network resources

Method used

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  • Device and method for realizing switching among mobile management domains
  • Device and method for realizing switching among mobile management domains
  • Device and method for realizing switching among mobile management domains

Examples

Experimental program
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Embodiment 1

[0034] Such as Figure 1a As shown, this embodiment provides a system for mobility management inter-domain handover, including:

[0035] The Local Mobility Anchor (LMA) is used to provide the function of the home agent (Home Agent) to the MN in the domain in the PMIPv6 domain, specifically, assigning the home prefix (home prefix) of the MN, and managing the reachability status (reachability) of the MN state), to manage the mobility of users bootstraps in this domain, when the users move to other domains, they can continue to provide mobility services for users through tunnel forwarding;

[0036] The mobile access gateway (MAG) is used to manage mobility-related signaling interactions for the MN, and track the connection status between the MN and the current link; the mobile node (MN), as a mobile terminal, does not need to support special protocols other than the IPv6 protocol, and can It is a notebook computer, single-mode or multi-mode mobile phone, PDA, IAD, etc.;

[0037]...

Embodiment 2

[0045] An embodiment of the present invention provides a method for implementing mobility management inter-domain handover, such as figure 2 shown, including:

[0046] Step S201, determining the local mobility anchor LMA1 of the first mobility management domain to which the mobile node MN initially attaches as the session mobility anchor SMA, and establishing a first connection between the mobile node MN and said LMA1;

[0047] Step S202, when the MN enters the second mobility management domain, the mobile access gateway MAG in the second mobility management domain receives the routing request message sent by the MN, and sends the current network configuration information to the MN, establishing a second connection between the mobile node MN and the Local Mobility Anchor LMA2 in the second mobility management domain; and the MN disconnecting the first connection with LMA1;

[0048] Step S203, establishing a bidirectional tunnel between the LMA2 and the SMA; establishing a tr...

Embodiment 3

[0056] refer to Figure 1b and image 3 , the network-based MN handover process between local mobility management domains in the embodiment of the present invention includes the following steps S301-S304:

[0057] S301. Establish a connection between the mobile node MN and the local mobility anchor LMA1 in the first mobility management domain attached for the first time, and determine the LMA1 as the session mobility anchor SMA;

[0058] When the MN initially attaches to a mobility management domain PMIP Domain 1, establish a connection between the MN and the local mobility anchor point LMA1 in the PMIP Domain 1 domain, and determine the LMA1 as the session mobility anchor point SMA, LMA1 becomes the SMA of the MN, and will be responsible for processing all sent and received data packets for the MN, so that the MN can communicate with the peer node through LMA1. When the MN is in the local area of ​​PMIP Domain 1, the operation only adopts the conventional operation of PMIP....

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Abstract

The invention discloses a method for realizing switching among mobile management domains, comprising the following steps: determining the local mobile anchor LMA1 of a first mobile management domain initially attached with mobile node MN to be session mobile anchor SMA, and establishing a first connection between the MN and the LMA1; establishing a second LMA1 MN and the mobile anchor LMA2; establishing a bidirectional tunnel between the LMA2 and the SMA; updating the proxy binding relation of the SMA; transmitting data sent and received by the MN and the bidirectional tunnel. The invention also provides a corresponding network entity. The invention solves the problem of switching among PMIPv6 domains, provides more efficient data transmission path and shorter communication time delay, adopts the mobility management scheme based on network, completely dispenses with terminals and is easy to realize.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method and device for realizing handover between mobile management domains. Background technique [0002] When a mobile node (MN, Mobile Node) moves in the current Internet network, it needs to maintain a fixed endpoint to provide seamless connection and communication with a corresponding node (CN, Corresponding Node). [0003] In a network-based mobility solution, such as PMIP (Proxy MIPv6, Proxy Mobile IP Protocol), the fixed endpoint is a Local Mobility Anchor (LMA, Local MobilityAnchor). The local mobility anchor allows the MN to change its attachment location while moving without notifying the communication peer, and all communication traffic of the mobile node will be routed through the local mobility anchor and forwarded to the MN through the tunnel. [0004] In the network-based mobility solution, when the MN moves between different mobility manage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04L12/56H04L29/06
CPCH04W76/02H04W36/0016H04W36/14H04W76/10H04W36/142
Inventor 张弓潘璐伽何诚
Owner HUAWEI TECH CO LTD
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