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Airborne wireless access system, apparatus and method for simultaneously satisfying multiple access modes

A wireless access system and access mode technology, applied in radio transmission systems, transmission systems, electrical components, etc., can solve problems such as limited scope of application, inability to support aircraft information transmission, and inability to provide access to cabin entertainment systems. The effect of improving switching efficiency and shortening response time

Inactive Publication Date: 2018-12-18
CETC AVIONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, equipment based on WLAN, 3G, and LTE technology needs two different configurations of airborne equipment to meet the above two scenarios. The equipment utilization efficiency and communication efficiency are low, and the equipment use cost and aircraft modification cost are high. adds weight to the plane
The first type of equipment is used as a terminal mode. Generally, the installation location can only be installed in the electronic cabin of the aircraft, and the antenna needs to be pulled away separately, which not only brings a large coaxial cable loss, but also needs to be installed outside the aircraft. A separate antenna installation hole is costly, and cannot provide access to the cabin entertainment system, or provide maintenance and crew members to log in to the aircraft information system maintenance through this interface
The second device in AP mode can only provide cabin passengers with access to the entertainment system, and cannot support the LTE UE mode to provide aircraft information transmission. The scope of application is limited, and it cannot meet the requirements of the device as a terminal mode to access airport WLAN and LTE networks.

Method used

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  • Airborne wireless access system, apparatus and method for simultaneously satisfying multiple access modes
  • Airborne wireless access system, apparatus and method for simultaneously satisfying multiple access modes
  • Airborne wireless access system, apparatus and method for simultaneously satisfying multiple access modes

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Such as figure 1 As shown, the airborne wireless access system that satisfies multiple access modes at the same time, including CPU SYSTEM, ANT equipment antenna, WLAN module, LTE module, SWITCH chip, DISCRETE chip and POWER power supply module, of which: POWER power supply module, Connect with the CPU SYSTEM, ANT equipment antenna, WLAN module, LTE module, SWITCH chip and DISCRETE chip respectively, for the CPU SYSTEM, ANT equipment antenna, WLAN module, LTE module, SWITCH chip and DISCRETE chip Chip power supply; ANT equipment antenna, respectively connected with the WLAN module and the LTE module, to realize wireless radio frequency signal transmission and reception, specifically used to receive wireless radio frequency signals and transmit them to the WLAN module and LTE module, and also used for Receive the wireless radio frequency signal transmitted by the WLAN module and the LTE module, and transmit it; the WLAN module and the LTE module are connected to the CPU ...

Embodiment 2

[0041] Such as Figure 2 to Figure 3 As shown, the airborne wireless access device that satisfies multiple access modes at the same time includes a casing, an antenna is arranged on the upper surface of the casing, a panel indicator light, a first aviation connector and a second aviation connector are arranged on the side of the casing, Mainboard is set inside the shell, processing module and miniPCIE standard connector, SWITCH chip, DISCRETE chip and single board external connector connected respectively with the processing module are set on the mainboard, wireless access module is also set on the mainboard , a WLAN module, an LTE module and a power module, the wireless access module is connected to the antenna, the WLAN module and the LTE module respectively, the WLAN module and the LTE module are respectively connected to the miniPCIE standard connector, and the The external connector of the single board is respectively connected with the panel indicator light, the first av...

Embodiment 3

[0046] Such as Figure 1 to Figure 3 As shown, the airborne wireless access method that satisfies multiple access modes at the same time, the following steps are performed:

[0047] A. When the aircraft needs to communicate in the cabin or as an access point for ground maintenance, it receives the external discrete state, and the DISCRETE chip reads the discrete state configuration according to the external discrete state and passes it to the CPU for identification;

[0048] B. The CPU queries the discrete quantity configuration table to determine the configuration status of the device;

[0049] C. The discrete quantity state is configured to enter the WLAN-AP mode, and the CPU starts to configure the power switch of the wireless communication module through the I / O port. The software driver layer loads the WLAN module into the driver corresponding to the AP mode, and the application layer loads Hostapd configuration, make the device work in AP mode;

[0050] D. When the air...

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PUM

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Abstract

The invention discloses an airborne wireless access system, apparatus and method for simultaneously satisfying multiple access modes. Aiming at the shortcomings and drawbacks of the existing WLAN andLTE-based airborne equipments in the aircraft application described above, provided are an airborne wireless access device and method that simultaneously satisfy multiple access modes, wherein WLAN and LTE modules are integrated into one system, and the same CPU system is used for configuration and data forwarding. The discrete configuration is used as the deciding condition of the equipment working mode, and the soft handoff mode is used to make the equipment work in WLAN-AP mode or station mode, or LTE UE mode. Combining the two kinds of equipments with different functions and scenarios canreduce the number of communication equipments, improve the utilization rate of equipments, reduce the cost and reduce the difficulty of aircraft retrofitting. Especially for some small civil airliners, reducing the number of equipment not only reduces the cost, but also has a positive significance to lighten the aircraft load.

Description

technical field [0001] The invention relates to airborne wireless communication, in particular to an airborne wireless access system, device and method that simultaneously satisfy multiple access modes. Background technique [0002] With the development of communication technology, wireless communication technology has been widely used in aircraft. Currently, various large aircraft are equipped with equipment based on WLAN, 3G, and LTE technologies. This type of equipment generally has two applications. The first type of equipment is used as a terminal mode as an external wireless interface of the aircraft information system, which can wirelessly transmit aircraft data to the airport core network. The second device is used as an AP mode, which provides a wireless interface for cabin passengers to access the in-flight entertainment system through WLAN technology, or provides maintenance and crew members to log in to the aircraft information system maintenance through this in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185
CPCH04B7/18506
Inventor 刘学
Owner CETC AVIONICS