Base station apparatus and transmission power control method

A communication terminal apparatus for performing radio communication with a base station apparatus, said base station apparatus comprising:

• control signal generation means for generating a transmission power control signal for instructing transmission power to said communication terminal apparatus on a basis of a comparison result of a reception quality of a signal transmitted by said communication terminal apparatus with a desired reception quality;
• and
• transmission control means for controlling transmission processing to a transmission signal including the transmission power control signal generated by said control signal generation means on a basis of the transmission power control signal transmitted by the communication terminal apparatus,
• wherein said control signal generation means and said transmission control means respectively perform the generation of the transmission power control signal and the control of the transmission processing according to a factor influencing a quality of communication with said communication terminal apparatus.

A transmission power control method comprising:

• a control signal generation step for generating a transmission power control signal for instructing transmission power to a communication terminal apparatus on a basis of a comparison result of a reception quality concerning a signal transmitted by the communication terminal apparatus with a desired reception quality;
• and
• a transmission control step for controlling transmission processing to a transmission signal including the transmission power control signal generated at said control signal generation step on a basis of the transmission power control signal transmitted by the communication terminal apparatus,
• wherein said control signal generation step and said transmission control step respectively perform the generation of the transmission power control signal and the control of the transmission processing according to a factor influencing communication with the communication terminal apparatus.