A method for power control of control channels in a radio communication system comprising: transmitting, with a first transmission power, first scheduling data in a common search space of a Physical Downlink Control Channel, PDCCH; transmitting, with a second transmission power, second scheduling data in a specific search space of the PDCCH; determining a magnitude of the first transmission power based on one or more first criteria; wherein a base station is configured to transmit the first and second scheduling data, further wherein the one or more first criteria include at least one of: an environment of the base station, a coverage radius of the base station, or a coverage requirement of the base station; wherein determining the magnitude of the first transmission power includes: determining a receiver target signal to noise ratio, SNR, based on a demodulation capability of a receiver; determining a channel propagation model for a cell associated with the base station; calculating a magnitude of shadow fading and fast fading in the cell based on the determined channel propagation model; calculating a path loss in the cell based on the determined channel propagation model and the coverage radius of the base station; and calculating antenna gain, cable loss, penetration loss and human consumption loss based on an antenna configuration of the base station. transmitting, with a first transmission power, first scheduling data in a common search space of a Physical Downlink Control Channel, PDCCH; transmitting, with a second transmission power, second scheduling data in a specific search space of the PDCCH; determining a magnitude of the first transmission power based on one or more first criteria; wherein a base station is configured to transmit the first and second scheduling data, further wherein the one or more first criteria include at least one of: an environment of the base station, a coverage radius of the base station, or a coverage requirement of the base station; wherein determining the magnitude of the first transmission power includes: determining a receiver target signal to noise ratio, SNR, based on a demodulation capability of a receiver; determining a channel propagation model for a cell associated with the base station; calculating a magnitude of shadow fading and fast fading in the cell based on the determined channel propagation model; calculating a path loss in the cell based on the determined channel propagation model and the coverage radius of the base station; and calculating antenna gain, cable loss, penetration loss and human consumption loss based on an antenna configuration of the base station. determining a receiver target signal to noise ratio, SNR, based on a demodulation capability of a receiver; determining a channel propagation model for a cell associated with the base station; calculating a magnitude of shadow fading and fast fading in the cell based on the determined channel propagation model; calculating a path loss in the cell based on the determined channel propagation model and the coverage radius of the base station; and calculating antenna gain, cable loss, penetration loss and human consumption loss based on an antenna configuration of the base station.