Wireless module calibration parameter extraction method and device

A technology for calibrating parameters and extraction methods, which is applied in advanced technology, receiver monitoring, climate sustainability, etc., can solve the problems that modules cannot be quickly screened out, RF performance has a great impact, and user experience is affected, so as to improve production Yield rate and test efficiency, improve product performance consistency, shorten the effect of RF calibration time
CN114884590AActive Publication Date: 2022-08-09CHENGDU VANTRON TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHENGDU VANTRON TECH CO LTD
Publication Date
2022-08-09

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Abstract

The invention discloses a wireless module calibration parameter extraction method and device, and belongs to the technical field of wireless module calibration, and the method comprises the steps: sampling wireless modules, extracting calibration parameters of the batch of wireless modules, testing the sampled wireless modules, and obtaining preset judgment standard values of the batch of wireless modules by referring to test indexes; writing the obtained calibration parameters into a radio frequency calibration parameter storage area corresponding to the wireless module to be tested; testing the to-be-tested wireless module through a comprehensive tester and a PC terminal, and screening out bad, qualified and to-be-calibrated wireless modules according to the judgment standard value; according to the wireless module radio frequency calibration method and device, automatic compensation is carried out on the wireless module needing to be calibrated, bad modules can be accurately screened out, accurate extraction of calibration parameters is achieved, the radio frequency calibration time of the wireless module is greatly shortened, and the product performance consistency, the large-scale production yield and the production efficiency are greatly improved within the industrial-grade temperature range.
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Description

technical field

[0001] The invention relates to the technical field of calibration of wireless modules, in particular to a method and device for extracting calibration parameters of wireless modules. Background technique

[0002] Due to factors such as the stray nature of RF device parameters, changes in ambient temperature, and long-term stability of the device, wireless (LTE) modules will exhibit different RF performance. In order to eliminate this effect, in the process of R&D and production testing, the wireless module needs to be calibrated, that is, it is necessary to measure and calculate these sensitive parameters for each radio frequency channel of each wireless module before leaving the factory to obtain the parameter error data, and calculate the parameter error data. Write these error data into the non-volatile storage medium (MCP) of the module. During normal use, the controller will read these data and use the corresponding algorithm to compensate the parameter...

Claims

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