Simultaneous wireless information and power transmission method, and transmission apparatus and reception apparatus using the same
AssigneeResearch & Business Foundation Sungkyunkwan University
InventorsDong In Kim, Jong Ho Moon, Jong Jin Park, Kang Yoon Lee
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Abstract
A simultaneous wireless information and power transmission method includes: transmitting an energy transfer signal comprising a peak-to-average power ratio (PAPR) corresponding to information to be transmitted at a first side; measuring the PAPR by receiving the energy transfer signal at a second side; and recovering the information from the measured PAPR at the second side.
Claims25
A wireless information and power transmission/reception method, comprising:
- modulating information into an energy transfer signal having a peak-to-average power ratio (PAPR) associated with the information at a first unit;
- transmitting the modulated energy transfer signal at the first unit;
- receiving the transmitted energy transfer signal at a second unit;
- and
- demodulating the information from the received energy transfer signal by measuring the PAPR of the received energy transfer signal at the second unit,
- wherein, in the modulating of the information, a maximum value of the PAPR is one-to-one mapped to the information, and changes in correspondence with a number of tones that form the energy transfer signal.
A wireless information and power transmission/reception system, comprising:
- a first unit comprising
- a signal generator configured to generate an energy transfer signal,
- a modulator configured to modulate information into the energy transfer signal by controlling the signal generator to generate the energy transfer signal with a peak-to-average power ratio (PAPR) associated with the information, and
- a first antenna configured to transmit the modulated energy transfer signal;
- and a second unit comprising
- a second antenna configured to receive the transmitted energy transfer signal,
- a rectifier configured to rectify the received energy transfer signal, and output the rectified energy transfer signal,
- an energy storage device configured to be charged by a signal output by the rectifier, and
- a demodulator configured to demodulate the information from the rectified energy transfer signal by measuring the PAPR in the rectified energy transfer signal,
- wherein, in the modulating of the information, a maximum value of the PAPR is one-to-one mapped to the information, and changes in correspondence with a number of tones that form the energy transfer signal.
An apparatus for transmitting power and information, comprising:
- a receiver configured to receive a pilot signal from another apparatus;
- a signal generator configured to generate an energy transfer signal based on the pilot signal;
- a modulator configured to modulate information into the energy transfer signal by controlling the signal generator generate the energy transfer signal with a peak-to-average power ratio (PAPR) associated with the information;
- and
- a transmitter configured to transmit the modulated energy transfer signal to the another apparatus,
- wherein, in the modulating of the information, a maximum value of the PAPR is one-to-one mapped to the information, and changes in correspondence with a number of tones that form the energy transfer signal.
Dependencies are inferred from the claim text.