u201c unknown u201d variation in the sir per subcarrier block considering the method proposed by the present invention fig6 shows that the transmit power per subcarrier block may only fluctuate within specified limits i e within a predefined range of transmission power control levels when performing power control for a subcarrier block this may allow improving the accuracy of sir estimation prediction which may result in an improved dca and amc selection performance moreover the definition of power ranges may be performed such that e g a mobile station in low geometry i e close to the cell boundary will be assigned to one or multiple subcarrier block s belonging to a subcarrier block set having a power range of high transmit power levels the opposite would be applies for mobile stations in high geometry additionally to the division of subcarrier blocks into subcarrier block sets the power limit definitions in adjacent radio cells may be aligned taking as an example the division of subcarrier blocks into subcarrier block sets as shown in fig7 i e three subcarrier block set per radio cell the transmission power ranges in which power control is performed may be defined according to the table below sbs1 power sbs2 power sbs3 power cell ranges ranges ranges power limits upper lower upper lower upper lower high gt medium gt low limit limit limit limit limit limit cell 1 bs 1 p max sbs1 p max sbs2 p max sbs2 p max sbs3 p max sbs3 0 p max sbs1 gt p max sbs2 gt p max sbs3 high medium low cell 2 bs 2 p.