Inner loop power control method for wideband code division multiple access (WCDMA) mobile terminal

A technology of mobile terminal and power value, applied in the field of communication, can solve the problem that the power value of WCDMA mobile terminal cannot meet the specified standard, etc., and achieve the effect of improving power control performance

Active Publication Date: 2014-08-27
盐城泓文广告传媒有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, it is necessary to provide an inner loop power control method for WCDMA mobile terminals to solve the technical problem that the power value of WCDMA mobile terminals in the prior art near the gain mode switching point cannot reach the specified standard

Method used

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  • Inner loop power control method for wideband code division multiple access (WCDMA) mobile terminal
  • Inner loop power control method for wideband code division multiple access (WCDMA) mobile terminal
  • Inner loop power control method for wideband code division multiple access (WCDMA) mobile terminal

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Embodiment Construction

[0018] In the present invention, the inner loop power control test is set in order to consider the power control capability of the WCDMA mobile terminal, and this test method includes the following steps:

[0019] Step 1: Test the ability of the WCDMA mobile terminal to maintain a specific power level (for example, -10dBm) without too much fluctuation;

[0020] Step 2: Test the ability of the WCDMA mobile terminal to increase the power by 1dB every 5 time slots, from -10dBm to 0dBm, a total of 50 time slots are tested;

[0021] Step 3: Test the ability of the WCDMA mobile terminal to reduce power by 1dB every 5 time slots, from 0dBm to -10dBm, test 50 time slots in total;

[0022] Step 4: Test the ability of WCDMA mobile terminals to increase power by 1dB per time slot, from -10dBm to maximum output power;

[0023] Step 5: Test the ability of the WCDMA mobile terminal to reduce the power by 1dB per time slot, from the maximum output power (typical value 23dBm) to the minimum ...

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Abstract

Disclosed is an inner-loop power control method for a WCDMA mobile terminal, including: generating from a first power threshold value to a second power threshold value a plurality of first radio frequency signals and detecting same so as to obtain a plurality of first power values; generating from the second power threshold value to the first power threshold value a plurality of second radio frequency signals and detecting same so as to obtain a plurality of second power values; determining a power difference of an adjacent first power value and a power difference of an adjacent second power value approximate to a gain mode switching point; determining a first inter-segment difference and a second inter-segment difference according to the power difference so as to obtain an inter-segment compensation value, a first switching point compensation value and a second switching point compensation value; using the inter-segment compensation values to compensate the first power value and the second power value in a certain gain mode, and using the first switching point compensation value and the second switching point compensation value to compensate the first power value and the second power value approximate to the switching point. The above method can improve power control performance and make same meet specification requirements.

Description

technical field [0001] The invention relates to the communication field, in particular to an inner loop power control method of a WCDMA mobile terminal. Background technique [0002] Inner Loop Power Control (ILPC) is an important indicator of WCDMA mobile terminal radio frequency, and this indicator represents the precise power control capability of the terminal. The WCDMA mobile communication system is an interference-limited system. If the WCDMA mobile terminal cannot perform power control accurately, it will affect the thermal noise of the system, and then affect the capacity of the system. [0003] At present, WCDMA mobile terminals have a large dynamic range of output power, and power amplifiers (Power Amplifier, PA) are generally linear amplifiers, and their amplification gain is fixed, so it is difficult to use one gain mode to cover the entire transmission range. Therefore, the power amplifier is generally set to multiple gain modes, such as a high power amplificat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/12
CPCH04W52/12
Inventor 白剑谢圣银
Owner 盐城泓文广告传媒有限公司
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