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Method for covering two-way multi-signal processing of high-speed moving object

A high-speed mobile, multi-signal technology, applied in the field of mobile communication, can solve the problems that the communication terminal frequency difference correction cannot be realized, and the adverse effects of Doppler frequency shift cannot be eliminated or reduced, so as to eliminate the Doppler effect and switch dropped calls problems, good call quality, and the effect of reducing environmental electromagnetic pollution

Active Publication Date: 2014-01-15
泉州泽仕通科技有限公司
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Problems solved by technology

However, in this scheme, no specific solution can be proposed for the problem of different pre-frequency difference processing for different terminals, that is, the frequency difference correction of multiple communication terminals in the high-speed mobile body cannot be realized, and the Doppler frequency shift cannot be eliminated or reduced. adverse effects

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  • Method for covering two-way multi-signal processing of high-speed moving object
  • Method for covering two-way multi-signal processing of high-speed moving object

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Embodiment Construction

[0013] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0014] The following uses a field strength coverage method in a high-speed train (300km / h per hour) to illustrate how to realize the field strength coverage of existing mobile signals such as GSM on high-speed trains; due to two frequency offset processing units and multiple frequency The offset processing units are the same in principle, and this embodiment takes two frequency offset processing units for the uplink and downlink respectively as an example to further illustrate the present invention.

[0015] refer to figure 1 and figure 2 , a kind of two-way multi-signal processing coverage method of a high-speed mobile body of the present invention, comprising a power supply, a donor antenna 1, a first duplex combiner 2, a second duplex combiner 3, a retransmission antenna 4, and an uplink low-noise amplifier 5. Uplink power amplifier 6, downlink...

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Abstract

The invention relates to the field of mobile communication and provides a method for covering two-way multi-signal processing of a high-speed moving object. According to the method, correction of the frequency difference of a plurality of communication terminals in the high-speed moving object can be achieved and the communication terminals can normally work at the same time. Devices of the method for covering two-way multi-signal processing of the high-speed moving object comprise a power source, two duplex combiners, a donor antenna, a service antenna, an uplink low-noise amplifier, an uplink power amplifier, a downlink low-noise amplifier and a downlink power amplifier, and further comprise a signal calculating processing module, an uplink frequency deviation processing module and a downlink frequency deviation processing module. The donor antenna is respectively connected with the input end of the uplink low-noise amplifier and the output end of the downlink power amplifier through the first duplex combiner, the output end of the uplink low-noise amplifier is connected with the input end of the uplink frequency deviation processing module, the output end of the uplink frequency deviation processing module is connected with the input end of the uplink power amplifier, and the output end of the uplink power amplifier and the input end of the downlink low-noise amplifier are respectively connected with the server antenna through the second duplex combiner.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a two-way multi-signal processing coverage method for a high-speed mobile body for solving the communication problem of multiple communication terminals in the high-speed mobile body. Background technique [0002] With the development of science and technology, there are more and more high-speed moving objects, such as fast-moving cars and trains, etc. When the speed of the high-speed moving objects is greater than 160km / h, the Doppler effect is very obvious, and the handover during the communication process will cause dropped calls In order to solve the problem of the Doppler effect, people use a Doppler correction device on the high-speed moving body to perform Doppler correction on the received signal, although the call quality can be improved to a certain extent. However, it cannot meet the requirements of Doppler correction devices for multiple communication terminals at ...

Claims

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Application Information

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IPC IPC(8): H04L25/03H04W16/24
Inventor 林志华
Owner 泉州泽仕通科技有限公司
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