| CPC H02J 50/40 (2016.02) [H02J 50/20 (2016.02); H02J 50/80 (2016.02); H02J 50/001 (2020.01)] | 20 Claims |
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1. A method of surveying for active and inactive power receivers within a wireless-power coverage area, the method comprising:
causing performance of a survey looking for active power receivers of a plurality of power receivers within a wireless-power coverage area using one or more communication radios;
receiving information from an active power receiver of the plurality of power receivers;
causing transmission of radio-frequency (RF) signals to energize inactive power receivers of the plurality of power receivers using a power-transmission antenna, wherein:
a first RF signal of the RF signals is transmitted using a first value for a transmission characteristic, and
a second RF signal of the RF signals is transmitted using a second value for the transmission characteristic, the first and second values being distinct;
receiving additional information from a first energized power receiver and further information from a second energized power receiver, wherein:
the first energized power receiver was one of the inactive power receivers until it received energy from the first RF signal, and
the second energized power receiver was one of the inactive power receivers until it received energy from the second RF signal; and
identifying two or more frequency bands for radio-frequency wireless-power transmissions by a wireless-power transmitting device within the wireless-power coverage area based on the information, the additional information, and the further information.
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