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Repeater station carrier fluctuation calibration method and device

A calibration method and calibration device technology, applied in the field of repeaters, can solve the problems of high investment cost, low calibration process efficiency, low calibration accuracy, etc., and achieve the effect of flexible operation, simplified fluctuation calibration process, and stable DC signal waveform

Active Publication Date: 2014-04-09
WUHAN HENGTAITONG TECH
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Problems solved by technology

[0005] Based on this, it is necessary to provide a repeater carrier fluctuation calibration method and device for the problems of high equipment investment cost, low calibration process efficiency, and low calibration accuracy of traditional repeater fluctuation calibration technology

Method used

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  • Repeater station carrier fluctuation calibration method and device
  • Repeater station carrier fluctuation calibration method and device
  • Repeater station carrier fluctuation calibration method and device

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Embodiment approach

[0031] As a preferred embodiment, the repeater carrier wave calibration method flow is as follows:

[0032] First configure the frequency point of the digital up-conversion module as the center frequency point, and then generate a DC signal. After the DC signal passes through the digital up-conversion module, the output power value is counted, and the statistical power value is fed back by the DC signal through the analog circuit part. Compared with the power value, the gain of the analog circuit part is determined, and the gain calibration is realized.

[0033] After gain calibration, the signal gain corresponding to the center frequency point is the set standard gain, adjust the amplitude parameters of the generated DC signal to make it output signals with different amplitudes, and then count the output signal power at the center frequency point, when the signal power is fluctuating When calibrating the desired standard power, write down the power value at that time.

[003...

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Abstract

The invention provides a repeater station carrier fluctuation calibration method which comprises the steps of generating a carrier signal of which the amplitude is a constant and transmitting the carrier signal to a digital up converter module, counting the carrier output power of an output signal of the digital up converter module, calculating the power difference between the carrier output power and a corresponding carrier feedback power and calibrating a gain compensation parameter of a corresponding carrier in the digital up converter module according to the power difference. The invention further provides a repeater station carrier fluctuation calibration device. By the adoption of the technology of the invention, a direct-current signal source can be generated inside a repeater station, fluctuation calibration can be carried out without configuring signal source equipment, the operation is flexible, the efficiency is high, the fluctuation calibration process is greatly simplified, the direct-current signal waveform is smooth, and the direct-current signal source can be used as a signal source for fluctuation calibration to obtain a higher calibration accuracy.

Description

technical field [0001] The invention relates to repeater technology, in particular to a repeater carrier wave calibration method and device. Background technique [0002] The repeater is an auxiliary transparent transmission amplification device for expanding the signal coverage of the base station, and it is widely used in wireless network coverage. [0003] For the repeater, the analog radio frequency circuit part has modulation filtering. When the carrier signals of different frequency points pass through the analog circuit, there will be abnormal gain, that is, fluctuation phenomenon. Therefore, the repeater equipment generally needs to do fluctuation calibration . [0004] The traditional repeater fluctuation calibration technology is usually equipped with a signal source device and a spectrum analyzer with multi-carrier signals at the same time. Fluctuation calibration, this kind of fluctuation calibration technology, equipment investment cost is high, the efficiency...

Claims

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Application Information

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IPC IPC(8): H04B17/00H04W24/02H04B17/21H04B17/327
Inventor 卢柱芳冯文龙
Owner WUHAN HENGTAITONG TECH
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