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

A mobile terminal and power value technology, which is applied in the field of communication, can solve the problem that the power value of WCDMA mobile terminals cannot meet the specified standards, and achieve the effect of improving power control performance

Active Publication Date: 2012-04-04
盐城泓文广告传媒有限公司
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  • 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

[0020] 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:

[0021] Step 1: Test the ability of the WCDMA mobile terminal to maintain a certain power level (for example, -10dBm) without too much fluctuation;

[0022] 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;

[0023] 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;

[0024] Step 4: Test the ability of WCDMA mobile terminals to increase power by 1dB per time slot, from -10dBm to maximum output power;

[0025] 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 o...

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Abstract

The invention discloses an inner loop power control method for a wideband code division multiple access (WCDMA) mobile terminal. The method comprises the following steps of: generating a plurality of first radio frequency signals from a first power threshold value to a second power threshold value and detecting to acquire a plurality of first power values; generating a plurality of second radio frequency signals from the second power threshold value to the first threshold value and detecting to acquire a plurality of second power values; determining the power difference between adjacent first power values and the power difference between adjacent second power values near switching points in a gain mode; determining the difference between first segments and the difference between second segments according to the power differences; further acquiring an inter-segment compensation value, a first switching point compensation value and a second switching point compensation value; and compensating the first power values and the second power values in a specific gain mode by using the inter-segment compensation value, and compensating the first power values and the second power values near the switching points by using the first switching point compensation value and the second switching point compensation value. With the adoption of the method, the power control performance can be improved so as to meet standard requirement.

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] Currently, WCDMA mobile terminals have a large dynamic range of output power, and power amplifiers (Power Amplifiers, PAs) are generally linear amplifiers with a fixed amplification gain, making it 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 amplification m...

Claims

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Application Information

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Patent Type & Authority Applications(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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