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Power amplifier anomaly detection method and system

An abnormality detection and abnormality technology, applied in electrical components, wireless communication and other directions, can solve problems such as failure of normal work and inability to analyze abnormality of DPDMCPA power amplifiers.

Active Publication Date: 2016-09-07
COMBA TELECOM SYST CHINA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to provide a power amplifier abnormality detection method for the DPD MCPA power amplifier in the background technology that fails to work normally due to incorrect parameter settings during normal operation, and cannot analyze the abnormality of the DPD MCPA power amplifier. Correct the parameters to protect the power amplifier and quickly locate and analyze the abnormality of the power amplifier

Method used

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  • Power amplifier anomaly detection method and system
  • Power amplifier anomaly detection method and system
  • Power amplifier anomaly detection method and system

Examples

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no. 1 example

[0024] see figure 1 , is the flow chart of the first embodiment of the power amplifier abnormality detection method of the present invention;

[0025] Step S101: Detect whether the loop and the periphery are abnormal;

[0026] The detection loop refers to detecting the abnormality of the internal equipment of the power amplifier during initialization; the detection periphery refers to detecting the abnormality of the back end of the power amplifier during initialization;

[0027] In one embodiment, the detection loop and whether the periphery is abnormal may include the steps of:

[0028] A detection instruction is received, and the first low-power signal is triggered to be generated;

[0029] Using the first low-power signal to detect the loop to obtain a first input power, a first output power, and a first reflected power;

[0030] determining a loop gain according to the first output power and the first input power;

[0031] If the loop gain is within a preset gain rang...

no. 2 example

[0070] In order to further illustrate how the power amplifier abnormality detection method of the present invention is implemented, the following uses an example of applying the power amplifier abnormality detection method of the present invention to a DPD MCPA power amplifier. see figure 2 , is a flow chart of the second embodiment of the power amplifier abnormality detection method of the present invention;

[0071] When the DPD MCPA power amplifier is initialized:

[0072] Step 201: After receiving the detection instruction, triggering the generation of the first low-power signal;

[0073] Step 202: Use the first low-power signal to detect the loop of the DPD MCPA power amplifier to obtain input power A1, output power A2 and reflected power A3;

[0074] Step 203: Calculate the difference between the output power A2 and the input power A1 to obtain the gain Y0;

[0075] Step 204: If the gain Y0 is within the preset gain range of 39bBm to 45dBm and the reflected power A3 ...

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Abstract

A power amplifier abnormality detection method and system, the method comprising the steps of: detecting whether the loop and the periphery are abnormal; if there is no abnormality in the loop and the periphery, detecting whether the current operating parameters have occurred relative to the historical operating parameters at intervals of a preset detection time period change; if so, track and record the current operating parameters to obtain recorded data; export and analyze the recorded data. According to the solution of the present invention, by detecting the power amplifier loop and peripheral parameter settings and recording the change of each operating parameter when the power amplifier is running, the parameters can be corrected in time to protect the power amplifier and quickly locate and analyze abnormalities of the power amplifier.

Description

technical field [0001] The invention relates to the field of mobile communication power amplifiers, in particular to a power amplifier abnormality detection method and system. Background technique [0002] At present, in the field of mobile communication power amplifiers, DPD MCPA (Digital Pre-Distortion Multi-Carrier Power Amplifier, digital pre-distortion multi-carrier power amplifier) ​​power amplifiers generally have some defects in protection because of their complex systems; for example, DPD MCPA power amplifiers ( If the parameters of the power amplifier (power amplifier for short) are not set correctly during normal operation, it may cause work failure, or even cause permanent damage to the equipment, and eventually lead to higher maintenance costs. At the same time, during the operation of the DPD MCPA power amplifier, the change of the network signal may also cause damage to the DPD MCPA power amplifier. However, if the effective engineering data of the change cann...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/04
Inventor 凌兴锋黄健安王忠文龙润坚李栋
Owner COMBA TELECOM SYST CHINA LTD