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Communication system using network base ip mobility protocol, control device, router, and communication method thereof

A technology for controlling equipment and communication systems, applied in the field of communication, which can solve problems such as the impossibility of maintaining a session

Inactive Publication Date: 2010-03-24
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Accordingly, when a node connected to a specific network is changed to another network, the IP address is also changed, making it impossible to maintain the session

Method used

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  • Communication system using network base ip mobility protocol, control device, router, and communication method thereof
  • Communication system using network base ip mobility protocol, control device, router, and communication method thereof
  • Communication system using network base ip mobility protocol, control device, router, and communication method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0127] figure 1 is a diagram showing a schematic configuration of a network in this embodiment.

[0128] figure 2 is a sequence diagram showing procedural steps of processing in this embodiment.

[0129] image 3 is a block diagram showing the configuration of the MAG in this embodiment.

[0130] Figure 4 is a block diagram showing the configuration of the LMA in this embodiment.

[0131] Such as figure 1 As shown, initially, MN 1 is under the control of MAGa 2 . Assume that MN 1 transfers from control of MAGa 2 to control of MAGb 3 while moving.

[0132] Below, will describe image 3 MAG in and Figure 4 LMA in.

[0133] Such as image 3 As shown, the MAGs 2 and 3 are configured to include: a communication device 5, which communicates with the LMA 4 through wired paths such as LAN (Local Area Network), the Internet, etc.; a radio communication device 6, which communicates wirelessly with the MN 1; a network-based IP A mobility protocol processor 7, which execu...

no. 2 example

[0170] Figure 8 is a diagram showing a schematic configuration of a network in this embodiment

[0171] Figure 9 is a sequence diagram showing procedural steps of processing in this embodiment.

[0172] Figure 10 is a block diagram showing the configuration of the MAG in this embodiment.

[0173] Figure 11 is a block diagram showing the configuration of the LMA in this embodiment.

[0174] Similar to the first embodiment, as Figure 8 As shown, it is assumed that MN 1 initially under the control of MAGa 2 transfers from the control of MAGa 2 to the control of MAGb 3 as it moves.

[0175] The present embodiment will be described assuming that handover based on the Proxy Mobile IP scheme is realized.

[0176] exist Figure 8 In , the AAA server 15 is connected to MAGa 2 and MAGa 3 via a network.

[0177] Such as Figure 10 As shown, similarly to the first embodiment, MAGb 2 and 3 are configured to include: communication means 5 for communicating with LMA 4 and AAA ...

no. 3 example

[0203] Figure 12 is a diagram showing a schematic configuration of a network in this embodiment.

[0204] Figure 13 is a sequence diagram showing procedural steps of processing in this embodiment.

[0205] In this embodiment, the MN has two addresses. Also, for each of these two addresses, a permanent ID and a temporary ID are provided as MN-ID. Furthermore, this embodiment can be implemented without giving any header compression information specifically to the MAG.

[0206] Such as Figure 12 As shown, initially, MN 1 is under the control of MAGa 2 . Assume that MN 1 transfers from control of MAGa 2 to control of MAGb 3 while moving.

[0207] First, if Figure 13 As shown, in S301, MN 1 sends address configuration information including at least MN-T-ID1 as a temporary identifier of MN 1 and LMAa-ID (ID of LMAa 18 managing MN-T-ID1). Similarly, MN 1 also transmits address configuration information including at least MN-T-ID2 as a temporary identifier of MN 1 and LMAb...

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Abstract

When an MN 1 is handed over from an MAGa 2 to an MAGb 3, a network-based IP mobility protocol processor 11 of an LMA 4 transmits header compression information to MAGb 3 while a network-based IP mobility protocol processor 7 of MAGb 3 stores the information into a storage 8. When receiving a packet, LMA 4 and MAGb 3 perform a tunneling process or a compression information process for every tunnelthrough which the packet passes, to perform appropriate compression / extension and routing. In this way, in a network-based IP mobility protocol, even if the MN had moved, the MN or LMA serves as a compressor and decompressor, so that it is possible to save the band for the last one hop, which is the narrowest band.

Description

technical field [0001] The present invention relates to a communication technique using a network-based IP mobility protocol. Background technique [0002] In recent years, in IP layers such as Mobile IPv6 (Internet Protocol Version 6), research and development for mobility support have been eagerly performed. Mobile IP is a protocol in the third network layer of the OSI (Open System Interconnection) reference model established by ISO (International Organization for Standardization). It is a mobile (network / communication medium switching) that hides the client from the upper layer , momentary interruption of communication, etc.) while maintaining communication technology. [0003] In TCP / IP (Transmission Control Protocol / Internet Protocol), which is a communication protocol commonly used in the Internet today, an IP address is an identifier and at the same time indicates a location on the network. Accordingly, when a node connected to a specific network is changed to anoth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04L12/70H04L12/701H04W28/00H04W28/06H04W36/12H04W40/34H04W80/04H04W92/24
CPCH04W36/0033
Inventor 丰川卓
Owner SHARP KK
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