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A network switching method and device for a vehicle node

A network switching and node technology, applied in the field of communication, can solve problems such as the increase of vertical switching times and the decrease of network stability

Active Publication Date: 2019-08-23
DATANG GOHIGH INTELLIGENT & CONNECTED TECH (CHONGQING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a network switching method and device for vehicle nodes to solve the problems of decreased network stability and increased vertical switching times

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  • A network switching method and device for a vehicle node
  • A network switching method and device for a vehicle node
  • A network switching method and device for a vehicle node

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Embodiment Construction

[0125] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0126] The embodiment of the present invention improves the existing Medium Independent Handover (MIH) protocol, proposes an enhanced FMIPv6 mobility management method, and proposes a heterogeneous network spanning network for fast-moving vehicle nodes in the Internet of Vehicles Layer vertical switching scheme.

[0127] Among them, by adding new primitives and parameters in the MIH protocol, FMIPv6 can grasp more vehicle node information and network background information before layer-2 handover, thereby shortening the decision-making delay of layer-2 handover and layer-3 handover, ensuring The real-time nature of safety messages, and reduce the number of network signal scans of vehicle nodes (also known as mobile nodes, Mobility Node, MN, or On Board Unit, OBU), and reduce energy consumption.

[0128] Specifically, a new primitive MIH-AddressInfo=(I...

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Abstract

The invention discloses a vehicle node network switching method and device. The method includes acquiring background information of a neighbor network of a roadside unit after a vehicle node is connected to the current roadside unit; determining switching decision information according to the background information; after a switching decision is made according to the switching decision information, sending a switching request to the roadside unit; and performing switching according to a switching strategy fed back by the roadside unit. The IP address and background information of a target network are acquired before switching of the vehicle node, so that nAR and nCoA configuration of FMIPv6 can be implemented before switching, route discovery, RtSolPr / PrPtAdv and related CoA configuration in traditional IPv6 mobility management are saved and FMIPv6 time is shortened. Therefore, the switching efficiency is improved and switching time delay is reduced.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for network switching of vehicle nodes. Background technique [0002] With the development of wireless communication network technology and the application of various vehicle electronic terminals, building a human-vehicle-road collaborative information network is no longer just a beautiful vision. By connecting moving vehicles as nodes to form a mobile network (also known as vehicular ad hoc network), vehicular ad hoc network can provide various services related to vehicles, vehicle traffic, drivers, passengers, pedestrians, etc. Various wireless access systems in the vehicular ad hoc network are integrated to form a heterogeneous network, thereby providing users with wireless access anytime and anywhere. [0003] The application of vehicular ad hoc network can be classified into comfort application and safety application according to the purpose. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04W36/26H04W36/30H04W36/32
CPCH04W36/0083H04W36/26H04W36/30H04W36/32
Inventor 丁磊王平王超刘富强房家奕李凤赵丽
Owner DATANG GOHIGH INTELLIGENT & CONNECTED TECH (CHONGQING) CO LTD