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AssigneeApple Inc.
InventorsFraidun Akhi, Vusthla Sunil Reddy
Estimating the term…
An electronic device may contain wireless circuitry that transmits and receives radio-frequency signals through antenna structures. Power amplifier circuitry may amplify the radio-frequency signals that are being transmitted. An adjustable voltage supply may supply an adjustable power amplifier bias voltage to the power amplifier circuitry. The power amplifier circuitry may include multiple power amplifiers each of which may handle signals transmitted using a different cellular telephone standard. For each cellular telephone standard, multiple modulation schemes may be supported. Some modulation schemes may have greater power amplifier linearity requirements than others. Control circuitry can adjust the adjustable power amplifier bias voltage in real time to select an optimum power amplifier bias voltage based on the current cellular telephone standard, modulation scheme, power amplifier gain state, and operating frequency in use.
A method for operating an electronic device, comprising:
A method of operating an electronic device containing wireless communications circuitry that has been characterized across a plurality of cellular telephone standards and corresponding modulation schemes to produce calibration data for the electronic device, wherein the wireless communications circuitry includes a power amplifier, and wherein the calibration data comprises power amplifier bias voltage levels to use for each of the modulation schemes to enhance power conservation during operation of the electronic device, the method comprising:
An electronic device that is configured to wirelessly transmit radio-frequency signals using a plurality of cellular telephone modulation schemes, comprising:
Dependencies are inferred from the claim text.