/ ADAPTIVE MODE SWITCHING METHED FOR SIMULTANEOUS WIRELESS INFORMATION AND POWER TRANSFER OPERATING IN DUAL MODE AND APPARATUS FOR PERFORMING THE SAME

摘要

The present invention relates to an adaptive mode switching method for simultaneous transmission of wireless power/information operating in dual mode and an apparatus for performing the same, which collects energy from a received signal that simultaneously transmits wireless power and information operating in dual mode Energy collection unit, when the size of the received signal is greater than the threshold value, a single tone information receiving unit for detecting and decoding the amplitude information and energy information of the received signal, if the size of the received signal is less than the threshold value, the received signal Multi-tone information receiving unit to estimate and decode the PAPR (Peak-to-Average Power Ratio), time division switch for switching the received signal to one of the energy collection unit, the single tone information receiving unit, the multi-tone information receiving unit, and a battery And an adaptive mode switching control unit that determines a communication mode and a modulation index based on a state, the size of the received signal, and a data transmission rate, and controls the time division switch according to the determined communication mode and modulation index. According to the present invention, it is possible to solve the limited energy transfer area problem of SWIPT using a single tone in a low power IoT environment and a low transmission rate of a PAPR (Peak-to-Average Power Ratio) based SWIPT using multiple tones.