Method and apparatus for adjusting peak power capability

An apparatus for adjusting peak power capability of a power amplifier circuitry, comprising:

• a calculating unit configured to calculate a Peak to Average Power Ratio, PAPR, of an input signal of said power amplifier circuitry, wherein said power amplifier circuitry comprises at least one main amplifier path and at least one peak amplifier path and said power amplifier circuitry is configured to output a signal combining amplified signals from said at least one main amplifier path and said at least one peak amplifier path;
• a determining unit configured to determine at least one configuration parameter of said at least one peak amplifier path from a plurality of different configuration parameters depending upon the calculated PAPR of said input signal, the at least one configuration parameter operable to adjust the amplified signal from the at least one peak amplifier path;
• and
• a controlling unit configured to configure said at least one peak amplifier path based on the determined at least one configuration parameter, thereby adjusting said peak power capability of said power amplifier circuitry.

A wireless communication device, comprising:

• a power amplifier circuitry comprising at least one main amplifier path and at least one peak amplifier path, wherein said power amplifier circuitry is configured to output a signal combining amplified signals from said at least one main amplifier path and said at least one peak amplifier path;
• a calculating circuitry configured to calculate a Peak to Average Power Ratio, PAPR, of an input signal of said power amplifier circuitry;
• a determining circuitry configured to determine at least one configuration parameter of said at least one peak amplifier path from a plurality of different configuration parameters depending upon the calculated PAPR of said input signal, the at least one configuration parameter operable to adjust the amplified signal from the at least one peak amplifier path;
• and
• a controlling circuitry configured to configure said at least one peak amplifier path based on the determined at least one configuration parameter, thereby adjusting said peak power capability of said power amplifier circuitry.

A wireless communication device, comprising:

• one or more processors;
• and
• one or more memories including computer program code,
• the one or more memories and the computer program code configured to, with the one or more processors, cause said wireless communication device to:
• calculate a Peak to Average power Ratio, PAPR, of an input signal of said power amplifier circuitry, wherein said power amplifier circuitry comprises at least one amplifier path and at least one peak amplifier path and said power amplifier circuitry is configured to output a signal combining amplified signals from said at least one main amplifier path and said at least one peak amplifier path;
• determine at least one configuration parameter of said at least one peak amplifier path from a plurality of different configuration parameters depending upon the calculated PAPR of said input signal, the at least one configuration parameter operable to adjust the amplified signal from the at least one peak amplifier path;
• and
• configure said at least one peak amplifier path based on the determined at least one configuration parameter, thereby adjusting said peak power capability of said power amplifier circuitry.