| 摘要 |
In order to minimise the power consumption in a communication system, the supply voltage (Vdd) and the bias voltage (Vbias) of a power amplifier (603) are controlled (601,602,606) in response to the envelope of the baseband signal (I/Q Data) to be amplified and in response to a control signal (To Control/Data Interface), wherein the control signal (To Control/Data Interface) indicates the protocol used.
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