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A switching method and device

A message and token technology, applied in the field of communication, can solve problems such as packet loss

Active Publication Date: 2021-01-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In MIPv6, the handover delay includes the time required for the MN to disconnect from the PAR and bind the MN to the CN using the NCoA. Keep sending packets to PCoA, after these packets are routed to PAR, packet loss will occur

Method used

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  • A switching method and device
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  • A switching method and device

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Experimental program
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Embodiment Construction

[0064]The technical solutions provided by the embodiments of the present invention can be applied to a system architecture including a home network and one or more foreign networks. Specifically, it can be applied to a scenario where the MN switches from one network (hereinafter referred to as "old access network") to another network (hereinafter referred to as "new access network"). Wherein, the old access network may be a home network, and the new access network may be a foreign network. Alternatively, the old access network can be a foreign network and the new access network can be another foreign network. Each network can support a network segment, and each network segment can include one or more IP addresses. Different networks can support different network segments, and generally there is no intersection between the network segments supported by different networks.

[0065] When traditional IP technology is used, after the MN moves from the old access network to the ne...

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PUM

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Abstract

The embodiment of the invention discloses a handover method and device, which relate to the communication field and are used for reducing the handover delay during the handover process of the MN from the old access network to the new access network. The method includes: the MN sends the first indication information to the NAR via the PAR; the first indication information is used to instruct the NAR to construct a handover test initialization message, and send the handover test initialization message to the CN; the handover test initialization message includes the NCoA of the MN, and is used to Request the CN to generate a token for the transfer key; the MN switches from PAR to NAR; the MN receives the transfer key generation token from the CN sent by the NAR; the MN binds the CN based on the transfer key generation token.

Description

technical field [0001] The present invention relates to the communication field, in particular to a switching method and device. Background technique [0002] Mobile Internet protocol version 6 (English: mobile internet protocol version 6, abbreviated: MIPv6) provides a home address (English: home address, abbreviated: HoA) and a care-of address (English: : care-of address, abbreviation: CoA). When the MN moves to a foreign network, it can obtain a CoA supported by the foreign network. Then, the MN notifies the corresponding node (English: corresponding node, abbreviation: CN) of the mapping relationship between HoA and CoA, so that the CN can Know the CoA, and then bind with the MN, so that the MN can use the CoA to communicate with the CN. [0003] When the MN is in the old access network, it can communicate with the CN via an old access router (English: previous access router, abbreviation: PAR) in the old access network. When the MN switches from the old access networ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/14H04W36/14
CPCH04W8/14H04W36/14H04L9/32H04W36/0016H04W36/0038H04W12/043H04L9/00H04W12/0431H04W12/0433
Inventor 郑秀丽徐小虎
Owner HUAWEI TECH CO LTD