Thus the power can be expressed as follows P s(j)=C???I(j)[1+F tot],???(6) [0080] where [0081] C is a predetermined constant typically used as a scaling factor, [0082] I(j) is an interference originating from cell j (the cell of interest), [0083] Ftot is the total interference coming from other cells into cell j. [0084] The increase of power in cell j caused by the increase of the transmission pow