Nanjing University of Posts and Telecommunicatins

Yan Fan

Guodong Liu

Wenxuan Xie

Yan Zhou

Zhihao Zhang

Embodiments of the present application provide a method for predicting envelope features. The method includes: according to baseband data or data after modulation mapping, a peak value of a radio frequency envelope signal, a time point corresponding to the peak value, a valley point of the radio frequency envelope signal and a time point corresponding to the valley point are predicted; according to the valley point and the time point corresponding thereto, a generated reference value is sent to a low-bandwidth control signal generating module to obtain a control signal; according to adjacent valley point and peak point, and time points corresponding thereto, generated status information is sent to a high-bandwidth control signal generating module to obtain a control switch signal; and when in an ascending status, according to a key information string, a slope k of a connecting line is determined, and a corresponding filter inductor is turned on.

Method for predicting envelope features and generating switching converter control signal in envelope tracking power supply, storage medium, and electronic device

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Jiangsu, China

Yan Fan