Apparatus and method for providing compatibility in wireless power transmission system

A wireless power transmitting device for use in a wireless power transmission system, the wireless power transmitting device comprising:

• a primary coil for transmitting wireless power based on magnetic induction or magnetic resonance;
• an electric drive unit connected to the primary coil and configured to provide an electric drive signal to the primary coil to allow the primary coil to generate the magnetic induction or the magnetic resonance;
• and
• a control unit connected to the electric drive unit and configured to control the electric drive signal, the control unit further configured to:
• receive a communication from a wireless power receiving device;
• determine an operational version of a standard technical specification supported by the wireless power receiving device based, at least in part, on whether the communication received from the wireless power receiving device includes a version field, wherein the operational version is a first version of the standard technical specification when the communication does not include the version field, and wherein the operational version is determined by the version field when the communication does include the version field;
• and
• perform a wireless power transmitting operation according to the operational version of the standard technical specification supported by the wireless power receiving device.

A system, comprising:

• means for receiving a communication from a wireless power receiving device;
• means for determining, by the wireless power transmitting device, an operational version of a standard technical specification supported by the wireless power receiving device based, at least in part, on whether the communication received from the wireless power receiving device includes a version field, wherein the operational version is a first version of the standard technical specification when the communication does not include the version field, and wherein the operational version is determined by the version field when the communication does include the version field;
• and
• means for performing a wireless power transmitting operation according to the operational version of the standard technical specification supported by the wireless power receiving device.