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Wireless directly- amplifying station with common-different-frequency forwarding function

A technology of wireless repeater and function, which is applied in wireless communication, radio relay system, communication between multiple stations, etc. It can solve the problems of not having the function of broadband signal repeater, voice communication and data transmission, etc. , to achieve the effect of reliable performance and simple structure

Inactive Publication Date: 2011-12-28
泉州市铁通电子设备有限公司
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AI Technical Summary

Problems solved by technology

However, the existing relay equipment does not have the broadband signal forwarding function of both same-frequency forwarding and different-frequency forwarding, and cannot meet the requirements of the railway train wireless dispatching communication system for voice communication and data transmission in sections of different systems. need

Method used

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  • Wireless directly- amplifying station with common-different-frequency forwarding function
  • Wireless directly- amplifying station with common-different-frequency forwarding function

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Embodiment Construction

[0025] best practice

[0026] The wireless repeater with the same and different frequency forwarding functions provided by the present invention is used in the wireless dispatching communication system of railway trains in the railway system B communication system section (that is, the four-frequency group is single-duplex compatible), and realizes wireless communication blind areas and weak areas of coverage. As known, the above-mentioned railway train wireless dispatching communication system adopts the same and different frequency independent half-duplex working mode to carry out voice communication and data transmission, that is, the working frequency of the station platform and locomotive platform is 457~459MHz (center frequency) when working at the same frequency. 458MHz), the transmission frequency of the station platform and the reception frequency of the locomotive station are 467-469MHz (center frequency 468MHz) when the frequency is different, and the reception freq...

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Abstract

A wireless repeater which has same frequency forwarding function and different frequency forwarding function comprises a donor antenna, a retransmission antenna, a first duplexer, a second duplexer, a first frequency signal link, a second frequency signal link and a controller. The first frequency signal link comprises a multiplexer; a first radio frequency switch which is connected with a first frequency channel of a first duplexer; a second radio frequency switch which is connected with a first frequency channel of a second duplexer; a third radio frequency switch which is respectively connected with a first radio frequency switch and a second radio frequency switch; a first descending low-noise amplifier which is connected between the first radio frequency switch and the multiplexer; a first ascending low-noise amplifier which is connected between the second radio frequency switch and a second input end of the multiplexer; and a first main power amplifier which is connected between an output end of the multiplexer and the third radio frequency switch. The second frequency signal link comprises a second low-noise amplifier and a second main power amplifier which are connected in series between the second frequency channel of the first duplexer and the second frequency channel of the second duplexer. The controller is connected with each radio frequency switch and controls the switching.

Description

technical field [0001] The invention relates to a wireless repeater with the same and different frequency forwarding functions, in particular to a wireless repeater with the same and different frequency forwarding functions used in a railway train wireless dispatching communication system. Background technique [0002] Railway train wireless dispatching communication system is an important equipment to ensure traffic safety. The system mainly includes dispatching switchboard, station (base station) equipment, locomotive equipment, handheld equipment, etc. With the continuous improvement of railway production and operation efficiency, transportation safety requirements, and communication modernization level, the railway train wireless dispatching communication system must not only realize voice communication functions such as train wireless dispatching, railway station yard shunting communication, and railway section mobile communication, but also It also undertakes the wirel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W88/08H04B7/14H04B7/26
Inventor 洪泉益蔡胜敏马宏平张国漳
Owner 泉州市铁通电子设备有限公司
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