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Mobile terminal automatic power control calibration method and device

An automatic power control and mobile terminal technology, applied in transmission monitoring, electrical components, transmission systems, etc., can solve the problems of large calibration errors and no power point coverage, and achieve the effect of improving accuracy and saving calibration time

Active Publication Date: 2016-02-17
UNIGROUP SPREADTRUM COMM HUIZHOU CO LTD
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Problems solved by technology

[0005] The existing APC calibration in FDT mode is limited by the number of power points that can be calibrated by one FDT calibration sequence. In order to complete the calibration of all power intervals in one calibration sequence, power points are usually selected at fixed intervals (for example, 2dBm). And calibrate the power point, but this calibration method does not cover all the power points, and the calibration error is large

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  • Mobile terminal automatic power control calibration method and device
  • Mobile terminal automatic power control calibration method and device
  • Mobile terminal automatic power control calibration method and device

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Embodiment Construction

[0030] The existing APC calibration in FDT mode is limited by the number of power points that can be calibrated by one FDT calibration sequence. In order to complete the calibration of all power intervals in one calibration sequence, power points are usually selected at fixed intervals (for example, 2dBm). And calibrate the selected power point. However, this calibration method does not cover all power points, and the calibration error is relatively large.

[0031] By adopting the scheme of the embodiment of the present invention, by obtaining the gain control word corresponding to the start and end power values ​​of the preset power interval, and by performing calculations with the difference in the preset difference interval, the corresponding power values ​​corresponding to other power values ​​to be calibrated in the power interval are obtained. The gain control word of the gain control word, so that the gain control word corresponding to other power values ​​to be calibra...

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Abstract

The invention relates to a mobile terminal automatic power control calibration method and device. The method includes the following steps that: gain control words corresponding to the starting and stopping power values of a preset power interval are obtained; computation is performed on the starting and stopping power values and difference values in a preset difference value interval, so that gain control words corresponding to a power value to be calibrated in the preset power interval are obtained; and the gain control words corresponding to the starting and stopping power values in the preset power interval and the gain control words corresponding to the power value to be calibrated in the preset power interval are utilized to perform automatic power control calibration on a mobile terminal. With the method and device adopted, the accuracy of automatic power control calibration can be effectively improved.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a mobile terminal automatic power control calibration method and device. Background technique [0002] Automatic Power Control (APC) calibration is an important index to measure the performance of a mobile terminal transmitter, and checks whether the mobile terminal can transmit a signal with a certain power. [0003] An APC instrument, such as Agilent's comprehensive tester 8960, includes two calibration modes: a dynamic mode and a fast calibration (FastDeviceTune, FDT) mode. The calibration sequence in dynamic mode does not limit the number of calibration power points, but the calibration takes a long time. The FDT mode can effectively save calibration time, but the number of calibration power points in a calibration sequence cannot exceed 20. [0004] At the same time, in order to save energy consumption of mobile terminals, different voltage values ​​are used for calibra...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00
Inventor 吉德成
Owner UNIGROUP SPREADTRUM COMM HUIZHOU CO LTD