th_donothing if yes turn to step 110 for generating the command for increasing the transmit power otherwise turn to step 111 for generating the command not adjusting the transmit power the process for generating the power control command using other signal quality parameters is similar to the above process and the description thereof will not be repeated after the terminal generates the power control command the terminal sends the control command to the base station via a control channel or in other ways and the base station adjusts the transmit power according to the received control command in the present invention the base station not only needs to adjust the transmit power according to the received control command but also needs to correct the adjusted transmit power according to the minimum code channel power permitted by current carrier and current time slot so that the difference between the signal transmit powers of all the code channels in the same carrier frequency and the same time slot may be equilibrated therefore the system may be prevented from being influenced because the difference between the signal powers of different code channels is too large and the quality of system communication may be guaranteed to make the concept characteristics and advantages of the present invention more apparent the specific implementation process of the present invention will now be further described in detail fig2.