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Correction processing method and correction processing device

A technology for correcting processing and processing methods, applied in synchronization/start-stop system, baseband system components, improving amplifiers to improve efficiency, etc., can solve problems such as poor predistortion tracking effect

Inactive Publication Date: 2016-06-22
ZTE CORP
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] The present invention provides a correction processing method and device to at least solve the problem of poor pre-distortion tracking effect caused by real-time changes in services in the related art

Method used

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  • Correction processing method and correction processing device
  • Correction processing method and correction processing device
  • Correction processing method and correction processing device

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Embodiment Construction

[0071] Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments. It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict.

[0072] In this embodiment, a correction processing method is provided, figure 1 Is a flowchart of a correction processing method according to an embodiment of the present invention, such as figure 1 As shown, the process includes the following steps:

[0073] Step S102: Perform data preprocessing on the collected forward signal and the feedback signal, where the feedback signal is a signal obtained after the forward signal is corrected;

[0074] Step S104: Obtain correction information according to the signal after data preprocessing, and update correction parameters according to the correction information;

[0075] Step S106, using the updated correction parameters to correct the forward sig...

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Abstract

The invention discloses a correction processing method and a correction processing device. The method comprises the following steps: performing data preprocessing on a forward signal and a feedback signal which are acquired, wherein the feedback signal is a signal obtained by correcting the forward signal; getting correction information according to the signals after data preprocessing, and updating correction parameters according to the correction information; and correcting the forward signal based on the updated correction parameters. Through the method and the device, the problem that the pre-distortion tracking effect is poor due to real-time change of service in the related technologies is solved, and the correction speed and correction performance for nonlinear system distortion are improved.

Description

Technical field [0001] The present invention relates to the field of communications, and in particular to a correction processing method and device. Background technique [0002] With the development of mobile communications, spectrum resources are becoming more and more scarce. In order to improve the efficiency of spectrum utilization, advanced broadband digital transmission technologies and high-efficiency modulation methods (such as wideband code division multiple access (CodeDivision Multiple Access, referred to as CDMA) are often used. , NQAM and Orthogonal Frequency Division Multiplexing (Orthogonal Frequency Division Multiplexing, referred to as OFDM), etc.) However, these modulation methods will produce intermodulation interference when the power amplifier is working close to the saturation region, which leads to serious nonlinear distortion of the power amplifier. These nonlinear distortions will cause signal distortion in the time domain and then affect the demodulatio...

Claims

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Application Information

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IPC IPC(8): H04L25/49H04L25/03H03F1/02
CPCH04L25/49
Inventor 宁东方潘卫明戴征坚
Owner ZTE CORP
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