Seamless interface switching method for PMIPv6 (Proxy Mobile Internet Protocol v6) multi-connection mobile nodes

A mobile node and proxy mobile technology, applied in wireless communication, electrical components, etc., can solve problems such as delay, data transmission delay increase, data loss, etc., and achieve the effect of reducing the requirement of cache capacity and transmission delay

Active Publication Date: 2013-01-23
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the two handover technologies in RFC 5949, the data transmitted during the handover process of the mobile node interface needs to be cached on the MAG, which increases the requirements for the storage capacity of the MAG. When there are multiple mobile nodes within the coverage of the MAG When switching at the same time, it may cause data loss due to insufficient storage capacity of the MAG. At the same time, because the data needs to be cached before forwarding, the data transmission delay will also be greatly increased, which is fatal for transmission delay-sensitive applications.
The multi-interface mobile node interface swi

Method used

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  • Seamless interface switching method for PMIPv6 (Proxy Mobile Internet Protocol v6) multi-connection mobile nodes
  • Seamless interface switching method for PMIPv6 (Proxy Mobile Internet Protocol v6) multi-connection mobile nodes

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0019] The invention relates to a seamless interface switching method of a proxy mobile IPv6 multi-connection mobile node. In a proxy mobile IPv6 network, the mobile node uses multiple network interfaces to access the network at the same time. The deployment scenario of multi-connection mobile nodes is as follows: figure 1 As shown, when the mobile node moves, when any interface of the mobile node moves from the coverage of one MAG network to the coverage of another MAG network, the interface of the mobile node will reconnect to the new MAG. During the handover process, by using the multi-interface feature of the mobile node, the present invention uses other interfaces of the mobile node to forward the data of the interface in the handover process through other interfaces, so as to realize the low-delay seamless data flow in the handover proce...

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Abstract

The invention relates to a seamless interface switching method for PMIPv6 (Proxy Mobile Internet Protocol v6) multi-connection mobile nodes, belonging to the field of PMIPv6. A mobile node is provided with a plurality of network interfaces which simultaneously access to the same PMIPv6 domain, when one network interface (assumed as IF1) of the mobile node is accessed to an MAG3 (Mobile Access Gateway 3) in the same PMIPv6 from an MAG1, data transmitted on the interface is firstly transmitted onto the MAG connected with other network interfaces of the mobile node, and then transmitted to the non-switching interface of the mobile node; and when an LMA (Lightspeed Memory Architecture) detects that the mobile node is leaving the MAG1, the LMA directly transmits the data flow onto the MAG connected with other network interfaces of the mobile node, thereby realizing seamless data transmission in the interface switching process of the mobile node.

Description

technical field [0001] The invention belongs to the field of proxy mobile IPv6 (PMIPv6), and relates to a method for seamless interface switching of multiple connection mobile nodes of proxy mobile IPv6. Background technique [0002] With the rapid development of Internet access technology and mobile terminal equipment, network terminal equipment is often equipped with multiple network interfaces, and it has become possible for one terminal to simultaneously access multiple heterogeneous network domains. At the same time, more and more users hope to enjoy network access services anytime and anywhere, so support for mobility is an inevitable requirement for future Internet protocol development. At present, the IETF MIF (Multi-interface) working group is committed to formulating the standardization of multi-interface-related protocol mechanisms. In order to meet the needs of users to access the network anytime and anywhere, IETF has established a series of related working gro...

Claims

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Application Information

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IPC IPC(8): H04W36/18
Inventor 崔勇徐鑫裴冰马骁李熹明
Owner TSINGHUA UNIV
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