Charging requests for backscattering and power harvesting devices

A method comprising:

• receiving, at an access point and from a first device, a first message indicating a first amount of power harvested by the first device and a second amount of power requested by the first device;
• determining, by the access point and based on the first amount of power, that transmitting a third amount of power will cause the first device to receive the second amount of power;
• and
• transmitting, by the access point, the third amount of power.

An apparatus comprising:

• a memory;
• and
• a processor communicatively coupled to the memory, the processor configured to:
• determine, based on a first amount of power requested by a first device and a second amount of power requested by a second device, a third amount of power greater than the first amount of power and the second amount of power;
• and
• transmit the third amount of power such that the first device receives the first amount of power and such that the second device receives the second amount of power.