A pmipv6 routing optimization method and system supporting mobile multicast

An optimization method and routing technology, applied in the fields of electrical components, wireless communication, connection management, etc., can solve the problems of inability to achieve better transmission delay and mobile switching delay effect, and achieve the effect of avoiding data delay and data redundancy.

Active Publication Date: 2018-06-05
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0007] At present, IETF has formulated the basic mobile multicast technology scheme and routing optimization scheme (RFC6224, RFC7028) for PMIPv6. However, because the location of the multicast router is unknown, it may be far away from the PMIPv6 domain. The MN may also move in from a foreign domain, so the routing optimization scheme in the first stage cannot achieve better transmission delay and mobile handover delay effect

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  • A pmipv6 routing optimization method and system supporting mobile multicast
  • A pmipv6 routing optimization method and system supporting mobile multicast
  • A pmipv6 routing optimization method and system supporting mobile multicast

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[0079] The purpose of the present invention is to propose a kind of routing optimization method and system that PMIPv6 supports mobile multicast at existing PMIPv6 agreement, when multicast router MR is positioned at PMIPv6 domain, directly adopt existing direct routing optimization scheme; In the scenario where MR is far away from the PMIPv6 domain and the mobile terminal, due to the large delay in the connection between MR and PMIPv6 domain, the routing scheme is further optimized at this time, so that the multicast data source can still directly send multicast data without passing through MR To the MN, while ensuring the performance requirements during the mobile handover process.

[0080] The direct routing optimization content includes the following three scenarios, such as figure 2 Shown:

[0081] The mobile terminal MN in the multicast group accesses through a certain MAG in the PMIPv6 domain, and the multicast source MS and MN are under the same MAG;

[0082] The mo...

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Abstract

The invention relates to the technical field of service flow distribution, in particular to a route optimization method and system of mobile multicast supported by PMIPv6. The method comprises the steps that a mobile terminal has access to a PMIPv6 domain, and builds network connection with a mobile access gateway, and a route announcement message is sent to trigger the mobile access gateway and an area mobile anchor point / mobile multicast tree anchor point to build a PMIPv6 bidirectional tunnel; a multicast data source sends multicast data to the mobile terminal, wherein the multicast data are firstly sent to a multicast router, and then the multicast data source is forwarded to the mobile terminal through the area mobile anchor point / mobile multicast tree anchor point and the mobile access gateway. The multicast data source in the PMIPv6 domain can directly send the data to the mobile terminal without the multicast router, and therefore large data delay is avoided.

Description

technical field [0001] The invention relates to the technical field of service flow distribution, in particular to a routing optimization method and system for PMIPv6 supporting mobile multicast. Background technique [0002] The Proxy Mobile IPv6 (PMIPv6) protocol is a network-based regional mobility management protocol formulated by the IETF. It has the advantages of no terminal support, high handover performance, terminal location privacy, link technology independence, and multi-home support. The combination of any wide-area mobility management protocols such as HIP and MOBIKE can efficiently support terminal mobility in a heterogeneous converged network environment. At present, PMIPv6 has also been implemented in many products of equipment manufacturers, and its actual upgrade and deployment of the operator's core network is also in progress. [0003] On the other hand, with the wide application of the Internet and the rapid development of wireless communication technol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/08H04W40/24H04W76/12
CPCH04W8/08H04W40/24H04W76/10H04W76/12H04W76/40
Inventor 王煜炜闫小龙秦晨翀刘敏
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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