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Power amplifier and control method thereof

A technology of a power amplifier and a control method, applied in the field of electronics, can solve the problems of high overall energy consumption and high energy consumption level of the power amplifier

Active Publication Date: 2013-12-18
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the intermodulation compensation circuit contains high-power devices such as gain control and error power amplifier, the energy consumption level is relatively high, so the overall energy consumption of the power amplifier is relatively high

Method used

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  • Power amplifier and control method thereof
  • Power amplifier and control method thereof

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] An embodiment of the present invention provides a power amplifier control method, such as figure 1 shown, including:

[0020] S101. Acquire an update threshold corresponding to the current number of carriers from preset thresholds according to the number of current carriers, where there are at least two preset thresholds.

[0021] S102. Comparing the preset parameter value of the intermodulation signal with the update threshold, and controlling the int...

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Abstract

The invention provides a power amplifier and a control method thereof, and relates to the field of electronics. According to the power amplifier and the control method thereof, the overall energy consumption of the power amplifier can be reduced. The control method of the power amplifier comprises the steps of obtaining an updating threshold value corresponding to the number of current carrier waves in preset threshold values according to the number of the current carrier waves, wherein the preset values are at least two in number; comparing the preset parameter value of an intermodulation signal and the updating threshold value, and controlling an intermodulation compensation circuit to be opened or closed according to the comparison result. The power amplifier and the control method thereof are used for the using of the power amplifier.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a power amplifier and a control method thereof. Background technique [0002] A power amplifier, referred to as a power amplifier, is an important part of a base station in a wireless communication system. Multi-carrier power amplifiers, as an effective means to improve base station capabilities and reduce base station energy consumption, are being widely adopted by many equipment manufacturers. There are two types of current multi-carrier power amplifiers: one is called a feedforward power amplifier, and the other is called a Doherty-DPD (Doherty Digital Pre-Distortion) power amplifier. A feed-forward power amplifier usually includes an intermodulation compensation circuit for compensating intermodulation distortion caused by amplifying multiple RF (Radio Frequency, radio frequency) signals. Since the intermodulation compensation circuit contains high-power devices such as gain cont...

Claims

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Application Information

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IPC IPC(8): H03G3/20H03F3/20
CPCH03F3/189H03F1/02H03F3/24H03F3/245H04B2001/0408H04B2001/045
Inventor 张舜卿徐树公
Owner HUAWEI TECH CO LTD
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