Patent ID: 9748790
Date: 2017-08-29
CPC Classifications: H02J,H04B

Claim:
1. A method comprising: by a base station, receiving from a wireless device power-level information comprising a power level of a signal transmitted from the base station to the wireless device, wherein the base station comprises an electrical path having a continuously-controllable transmit impedance, and wherein the power-level information is sent by the wireless device and received by the base station using a particular communications protocol; by the base station, determining, based on the power-level information, a first power transfer value of the signal when transmitted from the base station to the wireless device using a first transmit impedance; by the base station, determining, based on the power-level information, a second power transfer value of the signal when transmitted from the base station to the wireless device using a second transmit impedance; by the base station, selecting the first transmit impedance based on the power-level information indicating that the first power transfer value is greater than the second power transfer value; and by the base station, time-interleaving the first transmit impedance with a default transmit impedance, wherein the time-interleaving comprises wirelessly charging the wireless device using the first transmit impedance and communicating with the wireless device using the default transmit impedance and the particular communications protocol, and wherein the first transmit impedance, the second transmit impedance, and the default transmit impedance are attained by changing the impedance of the continuously-controllable transmit impedance in a continuous manner.