DPD device and method suitable for 5G broadband MIMO system

A broadband and 5G technology, applied in the field of DPD devices, can solve problems such as untimely response and long polling cycle time, and achieve the effects of improving reliability, speeding up system response speed, and improving slow feedback response
CN112953409AActive Publication Date: 2021-06-11NANJING HOWKING COMM TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
NANJING HOWKING COMM TECH
Publication Date
2021-06-11

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Abstract

The invention relates to the technical field of wireless communication, in particular to a DPD device suitable for a 5G broadband MIMO system, which comprises a data processing module, a digital-to-analog conversion module, a signal output module, a signal feedback module and an analog-to-digital conversion module, and is characterized in that the signal feedback module is used for ensuring that a DPD feedback signal has at least two feedback paths, the first feedback path is a main feedback loop, and the second feedback path is an auxiliary feedback loop. The method has the advantages that the occupied hardware resources are few, the DPD feedback loop signal can be monitored in real time, and the response is timely.
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Description

technical field

[0001] The present invention relates to the technical field of wireless communication, in particular to a DPD device and method suitable for 5G wideband MIMO systems. Background technique

[0002] With the development of wireless communication technology, the requirements for data transmission rate continue to increase. In order to meet the needs of large-capacity data transmission on scarce spectrum resources, communication systems now use technologies such as high bandwidth, high-order modulation, and multiple-input multiple-output (MIMO). This non-constant envelope modulation and multi-carrier technology will lead to a peak-to-average ratio of the modulated signal. In addition to high-bandwidth applications, higher requirements are placed on the linearity of the RF power amplifier. In order to improve the efficiency of RF power amplifiers and reduce system power consumption, the most effective way at present is to perform pre-distortion (DPD) processing on...

Claims

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