Patent ID: 8406713

Claim:
A transmission power control method including a process of switching a mode of a power amplifier between a compressed mode and an uncompressed mode in a process of controlling output power of the power amplifier, the method comprising: calculating an intra-mode output power error from a power setting value of the mode before switching, as a comparison standard value error; setting the power setting value of a mode to switch to, such that an inter-mode output power error is canceled; calculating the intra-mode output power error from the power setting value of the mode to switch to; calculating a gain linearity value based on the power setting value of the mode to switch to and the intra-mode output power error; and resetting the power setting value in the mode to switch to that cancels, based on the gain linearity value, the comparison standard value error in the mode before switching and the output power error in the mode to switch to.