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Frequency-spectrum-detection-based transceiver and frequency spectrum switching method

A spectrum detection and transceiver technology, applied in transmission monitoring, electrical components, transmission systems, etc., can solve the problem of low frequency band utilization and achieve the effects of wide frequency range, wide application range, and high spectrum efficiency

Inactive Publication Date: 2016-10-05
BEIJING SMARTCHIP MICROELECTRONICS TECH COMPANY +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention is to overcome the defect of low frequency band utilization in the prior art. According to one aspect of the present invention, a transceiver based on spectrum detection is proposed

Method used

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  • Frequency-spectrum-detection-based transceiver and frequency spectrum switching method
  • Frequency-spectrum-detection-based transceiver and frequency spectrum switching method
  • Frequency-spectrum-detection-based transceiver and frequency spectrum switching method

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Embodiment 1

[0038] In Embodiment 1, both the receiver and the transmitter adopt a double frequency conversion method. Such as image 3 As shown, the transceiver includes the aforementioned antenna unit 10 , receiver 20 , spectrum detection device 30 , baseband processing device 40 , transmitter 50 and duplexer 60 .

[0039] Wherein, the receiver 20 specifically includes: a low-pass filter LPF, a low-noise amplifier LNA, a first mixer M1, a first band-pass filter BPF1, a first amplifier A1, a third mixer M3, a first adaptive Gain controller AGC1 and analog-to-digital conversion unit AD; the output of the low-pass filter LPF passes through the low-noise amplifier LNA, the first mixer M1, the first band-pass filter BPF1, the first amplifier A1, the third mixer The frequency converter M3, the first adaptive gain controller AGC1 and the analog-to-digital conversion unit AD are connected to the spectrum detection device 30.

[0040] The transmitter specifically includes: a digital-to-analog c...

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Abstract

The invention discloses a frequency-spectrum-detection-based transceiver and a frequency spectrum switching method. The transceiver comprises an antenna unit, a receiver, a frequency spectrum detection device, a baseband processing device and a transmitter. The antenna unit is connected with an input terminal of the receiver and an output terminal of the transmitter; an output terminal of the receiver is connected with one end of the frequency spectrum detection device; and the other end of the frequency spectrum detection device is connected with an input terminal of the transmitter by the baseband processing device. The frequency spectrum detection device is used for dividing a whole frequency band into a plurality of sub frequency bands at preset intervals, detecting frequency spectrums of all sub frequency bands, determining an idle channel, and determining a sub frequency band needed by a low-pass filter and local frequencies of a first mixer and a second mixer. According to the embodiment of the invention, the idle spectrum resources can be used for carrying out communication under the circumstance that the user in communication is not affected, so that the spectrum allocation becomes flexible and efficient and the frequency spectrum efficient is high.

Description

technical field [0001] The present invention relates to the technical field of transceivers in a wireless power private network, in particular to a transceiver based on spectrum detection and a spectrum switching method. Background technique [0002] In 1991, in order to meet the needs of the electric energy information collection and monitoring system for the construction of the electric power system, the relevant state departments allocated a total of 15 dual-frequency points and 10 single-frequency points in the 223MHz-235MHz frequency band to electric power. In the power system, the 230MHz wireless communication network is called "private network", and most of the power load control business is carried by the digital radio station. The 230MHz wireless communication system has the advantages of less investment, short construction period, and simple maintenance, so it is very suitable for distribution networks with scattered communication nodes. It is found that it can no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/382
Inventor 原义栋赵东艳谢刚毛敏吴广宇
Owner BEIJING SMARTCHIP MICROELECTRONICS TECH COMPANY
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