ENERGY TRANSMISSION DEVICE, ENERGY RECEIVING DEVICE, AND WIRELESS CHARGING METHOD

A transmitter device (400), a receiver device (900), and a wireless charging method are provided. The transmitter device (400) includes a signaling modulation module (420), an energy modulation module (430), and an antenna element (440). The signaling modulation module (420) is configured to generate a narrowband modulation signal that carries signaling. The signaling includes an indication for a correspondence between a first resource and the receiver device (900). The first resource is scheduled based on a pre-received charging request signal from the receiver device (900). The energy modulation module (430) is configured to perform amplitude and phase adjustment on the narrowband modulation signal based on the pre-received charging request signal, to form an energy transmission signal. The antenna element (440) is configured to transmit the energy transmission signal on the first resource, to charge one or more receiver devices (900). The transmitter device (400) can charge the receiver device (900), and carry the signaling in the energy transmission signal. This implements simultaneous transmission of energy and signaling, greatly reduces hardware complexity of the transmitter device (400), and cuts hardware costs.