Nonlinear system distortion correction device and method

Abstract

The present invention discloses an apparatus and method for nonlinear system distortion correction. The apparatus includes: apparatus for nonlinear system distortion correction including: a robustness signal source generator, arranged to generate a robustness signal provided to an adaptive device; the adaptive device, arranged to collect a main link signal output by a signal generator and a feedback signal returned by the main link signal via a feedback link, and generate a correction parameter according to the main link signal, the feedback signal and the robustness signal; and a pre-corrector, arranged to according to the correction parameter perform pre-correction processing on the main link signal output by the signal generator. The present invention ensures, by providing the robustness signal, that, a system will not bring the problem of unknowable abrupt change in power or abnormal output frequency spectrum, which is caused by the fact that the difference between a signal characteristic in a former configuration and a signal characteristic in a latter configuration is too large under various dynamic configurations after an actual link signal passes through a pre-distortion module, thereby improving the robustness of the system in the case of dynamic operation, and being able to satisfy various frequency band configuration requirements of operators and dynamic change requirements of telephone traffic in different regions.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a nonlinear system distortion correction device and method. Background technique [0002] With the development of mobile communications, spectrum resources are becoming increasingly scarce, and it is often difficult for operators to obtain spectrum with sufficient bandwidth in a frequency band. In the future, various operators will establish cross-band communication systems more and more frequently. This will cause the communication equipment system to process ultra-wideband signals across frequency bands. At the same time, operators' requirements for CAPEX (Capital Expenditure, capital expenditure) and OPEX (Operating Expense, operating cost) will increasingly become the primary consideration when selecting equipment. For wireless communication base station systems, about 80% of the power consumption is generated by the RF power amplifier (PA, Power Amplifier) ​​in the ...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a nonlinear system distortion correction device and method to solve the problem of poor robustness of the prior art system

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