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Ultra-wideband digital predistortion method, device and system

A technology of digital pre-distortion and pre-distortion coefficients, which is applied in the transmission system, synchronization/start-stop system, parts of amplification devices, etc., can solve the problem of poor nonlinear correction effect of ultra-wideband power amplifiers, and improve the nonlinear correction effect , the effect of improving performance

Active Publication Date: 2018-05-04
COMBA TELECOM SYST CHINA LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide an ultra-wideband digital pre-distortion method, device and system for the problem that the traditional digital pre-distortion method has a poor effect on the nonlinear correction of the ultra-wideband power amplifier

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  • Ultra-wideband digital predistortion method, device and system
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  • Ultra-wideband digital predistortion method, device and system

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Embodiment Construction

[0024] The content of the present invention will be further described in detail below in conjunction with preferred embodiments and accompanying drawings. Apparently, the embodiments described below are only used to explain the present invention, not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all content.

[0025] like figure 1 As shown, the present invention provides a kind of ultra wideband digital predistortion method, may comprise the following steps:

[0026] S1. Divide the effective bandwidth into several subbands according to the amplitude-frequency response within the effective bandwidth of the power amplifier;

[0027] In this step, in order to ensure the accuracy of the digital pre-distortion processing result, only the data within the effective bandwidth of the power amplifier is processed. The effective bandwidth is the wor...

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Abstract

The invention relates to an ultra-wideband digital predistortion method, device and system. An effective bandwidth is divided into a plurality of sub-bands according to amplitude-frequency response inthe effective bandwidth of a power amplifier; the sub-bands are separated; and predistortion is carried out on each sub-band. A nonlinear correction effect for the ultra-wideband power amplifier canbe effectively improved, so the ultra-wideband digital predistortion performance is improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication signal processing, in particular to an ultra-wideband digital predistortion method, device and system. Background technique [0002] In modern wireless communication systems, the higher power transmitter is the part with the highest energy consumption in the entire wireless communication system. In order to save the energy consumption of the entire system, improving the energy efficiency ratio of the transmitter is the best choice, and increasing the static operating point can Improve the energy efficiency ratio of the transmitter, but because it enters the nonlinear range of the power amplifier, it leads to the nonlinear distortion of the transmitted signal. At present, the most commonly used method to solve nonlinear distortion is digital predistortion. [0003] With the increasing data traffic, wireless communication equipment needs to work in a wider operating frequency...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/7163H04L25/49H03F1/32
CPCH03F1/3247H03F1/3258H04B1/71635H04L25/49
Inventor 刁穗东
Owner COMBA TELECOM SYST CHINA LTD
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