| 摘要 |
An apparatus adapted to control transmission power in a mobile station comprises a power amplifier adapted to amplify a radio signal with a gain characteristic corresponding to a computed transmission level, and an automatic gain control unit adapted to generate an automatic gain control signal to control a gain of the power amplifier. The apparatus also comprises a temperature compensating unit adapted to compute a maximum output deviation of the mobile station according to a temperature variation of the power amplifier, the temperature compensating unit compensating the automatic gain control signal using a per temperature compensating value according to the computed deviations. The apparatus also comprises a control unit adapted to control the automatic gain control unit and the temperature compensating unit by sensing the temperature variation of the power amplifier and by detecting an output characteristic of the power amplifier according to the temperature variation.
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