Wireless power receiving device, wireless power transmitting device, and method for calibrating power using the same

In a wireless power receiving device receiving wireless power from a wireless power transmitting device, the wireless power receiving device configured to:

• transmit a first received power packet including an estimated received power value for a first calibration data point to the wireless power transmitting device after a negotiation phase;
• receive ACK in response to the first received power packet from the wireless power transmitting device;
• transmit a second received power packet including an estimated received power value for a second calibration data point to the wireless power transmitting device;
• receive ACK in response to the second received power packet from the wireless power transmitting device;
• transmit a new second received power packet including an estimated received power value for a third calibration data point to the wireless power transmitting device;
• and
• receive ACK in response to the new second received power packet from the wireless power transmitting device.

In a wireless power receiving device receiving wireless power from a wireless power transmitting device, the wireless power receiving device configured to:

• transmit a first received power packet including an estimated received power value for a first calibration data point to the wireless power transmitting device after a negotiation phase;
• receive ACK in response to the first received power packet from the wireless power transmitting device;
• transmit a second received power packet including an estimated received power value for a second calibration data point to the wireless power transmitting device;
• receive ACK in response to the second received power packet from the wireless power transmitting device;
• and
• based on change of a target operating point, transmit a new second received power packet including an estimated received power value for a third calibration data point to the wireless power transmitting device or transmit a new first received power packet including an estimated received power value for a new first calibration data point and a new second received power packet including an estimated received power value for a new second calibrated data point to the wireless power transmitting device.