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Reconfigurable digital pre-distortion processing module

A digital pre-distortion and processing module technology, which is applied in the direction of synchronization/start-stop system, etc., can solve the problem of limited application range of digital pre-distortion processing modules, and achieve the effect of simplifying dynamic deviation and expanding the use range

Active Publication Date: 2022-01-28
北京无极芯动科技有限公司
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Problems solved by technology

[0006] An embodiment of the present invention provides a reconfigurable digital pre-distortion processing module, which is used to solve the technical problem that the range of use of the digital pre-distortion processing module is limited in the prior art

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0035] figure 1 A schematic diagram of a reconfigurable digital pre-distortion processing module provided for an embodiment of the present invention, such as figure 1 As shown, the embodiment of the present invention provides a reconfigurable digital pre-distortion processing module, including: an index generation module 101, a variable ge...

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Abstract

An embodiment of the present invention provides a reconfigurable digital pre-distortion processing module, including: an index generation module, a variable generation module, several polynomial modules and an accumulation module; the input end of the index generation module is used to obtain data to be processed, and the index generation module The output of each polynomial module is connected to the input of each polynomial module; the input of the variable generation module is used to obtain the data to be processed, and the output of the variable generation module is respectively connected to the input of each polynomial module; the output of each polynomial module Both terminals are connected to the input terminal of the accumulation module, and the output terminal of the accumulation module is used to output the processed data. The reconfigurable digital pre-distortion processing module provided by the embodiment of the present invention supports a variety of digital predistortion based on Volterra series, such as memory polynomial, general memory polynomial, dynamic deviation reduction, and simplified dynamic deviation reduction, without significantly increasing hardware overhead. The pre-distortion model expands the scope of use of the digital pre-distortion processing module.

Description

technical field [0001] The invention relates to the technical field of digital signal processing, in particular to a reconfigurable digital pre-distortion processing module. Background technique [0002] In a broadband mobile communication system, in order to reduce the power back-off of a radio frequency power amplifier, a digital pre-distortion (Digital Pre-distortion, DPD) technology is usually used to eliminate the nonlinearity of the power amplifier and improve the efficiency of the power amplifier. [0003] In the prior art, a typical DPD system includes a DPD estimation module, a DPD processing module, a digital-to-analog converter, a power warning module, a radio frequency link, a power amplifier, a feedback loop and an analog-to-digital converter. Among them, the DPD estimation module is usually implemented by a general-purpose MCU or DSP to support a flexible DPD estimation algorithm. [0004] The DPD processing module is a key device of the DPD system, which is u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/49
CPCH04L25/49
Inventor 刘大可刘劭晗
Owner 北京无极芯动科技有限公司
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