Patent 7640033 was granted and assigned to NEC Corporation on December, 2009 by the United States Patent and Trademark Office.
A transmission power control information section issues an indication to a variable gain control amplifier at a predetermined control cycle. The variable gain control amplifier controls a transmission power according to the given indication amount. An adjustment amount generator adjusts the indication amount to be given to the variable gain control amplifier while maintaining a change in the transmission power between an indication from a transmission power control information section and subsequent indication within a predetermined range.