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Quick and efficient agent mobile IPv6 switching method

A mobile and fast technology, applied in wireless communication, electrical components, etc., can solve the problems of large switching delay, packet loss, and high packet transmission overhead, so as to reduce signaling transmission overhead, reduce communication interruption time, increase The effect of reliability

Inactive Publication Date: 2014-06-04
SHANDONG UNIV
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Problems solved by technology

[0004] In order to solve the deficiencies in the prior art, the present invention discloses a fast and effective proxy mobile IPv6 handover method, aiming at the FPMIPv6 protocol, when the predictive style fails, the reactive style brings relatively large switching delay and packet loss problems , and the problem of high packet transmission overhead, the present invention adopts an adaptive link trigger mechanism, that is, dynamically triggers the handover preparation operation according to the moving speed of the mobile node (MN) and the time required for the handover preparation operation, so as to ensure the predictive mode successfully carried out

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  • Quick and efficient agent mobile IPv6 switching method
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  • Quick and efficient agent mobile IPv6 switching method

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Embodiment Construction

[0036] The present invention is described in detail below in conjunction with accompanying drawing:

[0037] Such as Figure 1-3 As shown, a fast and effective proxy mobile IPv6 handover method includes the following steps:

[0038] Step1: The MN's previous access network sends the MN's identity (ID) and new access point (n-AP) ID information to the previous mobile access gateway (p-MAG) through a link-to-be-disconnected (LGD) trigger signal ).

[0039] Step2: p-MAG obtains the new access gateway (n-MAG) information through the ID of the new access point, and sends a handover initiation message (P-HI) with the "P" logo to n-MAG.

[0040] Step3: After receiving the P-HI message, the n-MAG sends an access authentication request message to the MN to the authentication, authorization, and accounting (AAA) server.

[0041] Step4: The AAA server sends an authentication reply message to the n-MAG, which contains the description information of the MN, such as the address of the Loc...

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Abstract

The invention discloses a quick and efficient agent mobile IPv6 switching method. By the adoption of a make-before-break prediction mode in the method, access authentication and registration updating processes in the PMIPv6 switching process are completed before a current link breaks, so that after a mobile node is connected to a new link, ports can be configured as soon as possible and the communication session process can be continued, therefore, switching delay is shortened, and packet losses are lowered. Meanwhile, according to the provided switching method, the condition that the prediction mode fails is also considered, a self-adaptive link triggering mechanism is used, namely preparation operations are triggered and switched in a dynamic mode according to the movement speed of the mobile node and the time required for switching the preparation operations, it is guaranteed that the prediction mode is conducted successfully, and therefore the reliability of the method is enhanced.

Description

technical field [0001] The invention relates to the technical field of wireless network multimedia communication, in particular to a fast and effective proxy mobile IPv6 switching method. Background technique [0002] Proxy Mobile IPv6 (PMIPv6) is a network-based local mobility management mechanism standardized by the IETF NETLMM working group in 2008. In PMIPv6, the mobile node does not need to participate in any signaling interaction process related to IP mobility, so the wireless link tunnel overhead and signaling overhead are greatly reduced. However, since PMIPv6 adopts the reactive mode of "break first, then connect", the operations of access authentication, registration, and tunnel establishment during the handover process bring about large delays and packet loss problems during the handover process. It is unacceptable for instant messaging and multimedia applications with higher real-time requirements. [0003] In order to reduce the handover delay brought by PMIPv...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04W36/08H04W36/18
Inventor 曹叶文张福婷
Owner SHANDONG UNIV
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