Network structure and ip flow access method for road emergency wireless access

A technology of wireless access and network structure, applied in the field of wireless communication

Inactive Publication Date: 2016-05-04
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Technical problem: In order to better solve the problems of mobile access and network operation management caused by frequent vehicle movement in intelligent transportation applications, the present invention proposes a reliable solution to access point switching caused by frequent movement of vehicle nodes And the subsequent IP access problem, it is simple to implement, without changing the TCP / IP protocol stack, and can improve the system software compatibility oriented network structure for road emergency wireless access, and the IP mobile access using this network structure entry method

Method used

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  • Network structure and ip flow access method for road emergency wireless access
  • Network structure and ip flow access method for road emergency wireless access
  • Network structure and ip flow access method for road emergency wireless access

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Embodiment Construction

[0020] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] The network structure oriented to road emergency wireless access of the present invention includes:

[0022] One or several wireless access mobile terminals with the ability to communicate with surrounding wireless access points, whose actual location is not fixed, have the ability to communicate with surrounding wireless access points, and access various types of terminals in the system through wireless access points server. IP service terminals include but are not limited to computers, mobile phones, embedded vehicle terminals, etc.

[0023] One or several wireless access points arranged on the road or in the surrounding buildings of the road, which are arranged on the roadside or in the surrounding buildings, are used to receive data packets from the wireless access mobile terminal, and the sending destination addre...

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Abstract

The invention discloses a network structure facing road emergency wireless access and internet protocol (IP) flowing access technology adopting the network structure, and is used for solving the problem of flowing user access in transportation communication service covering vast amounts of users in a city. In a network allowing centralized control, a terminal is supported to be automatically shifted among different access points (AS), an IP address can be ensured invariably, and supporting capacity of a wireless access flowing terminal to global IP business is ensured. At the same time, a system does not protect a data package in the shifting, the network structure is suitable for using in a flowing occasion, the terminal is located on the same AP coverage area during business transmission, and thus the network structure is suitable for most emergency rescue occasions.

Description

technical field [0001] The invention belongs to the field of wireless communication, and relates to a network structure oriented to emergency communication and emergency command in the application of road traffic communication, and a mobile terminal mobile communication method. Background technique [0002] In recent years, major traffic safety accidents have emerged one after another, and the scene of the accident is often chaotic and crowded with people. At present, the command on the scene basically relies on walkie-talkies and public telecommunications. The walkie-talkie can solve the problem of voice command, but the frequency it uses is the ISM band, which is prone to conflict and interference, and the walkie-talkie cannot solve the problem of data and image transmission. The main disadvantage of public telecommunications is limited capacity, which makes it difficult to perform resource scheduling that differentiates business priorities among different users. In emerg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L29/08H04W36/08H04W48/08H04W48/16
Inventor 陈国华陈晓曙
Owner SOUTHEAST UNIV
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