| 摘要 |
Disclosed are a mobile phone and a power adjustment method thereof. The method comprises the following steps: determining whether a maximum power transmission instruction from a base station is received or not when a call is established; when it is determined that the maximum power transmission instruction from the base station is received, determining whether an interrupt signal sent by a distance sensor is received or not, the distance sensor sending the interrupt signal when a distance between the mobile phone and a human face is within a predetermined distance range; setting the maximum output power of a radio frequency power amplifier to first output power when it is determined that the interrupt signal is not received, and setting the maximum output power of the radio frequency power amplifier to second output power when it is determined that the interrupt signal is received, the second output power being greater than the first output power; and controlling the radio frequency power amplifier to output a radio frequency signal with the maximum output power. By means of the present invention, the performance of a phantom antenna can be improved without modifying the antenna; the operation is simple and convenient, and has low cost. |
