t 2 u2212 t 1 t 1 the apc withdraws the token from chunk f 1 in the closest neighbor of cell b that is either from cell a or from cell b or from both depending on the particular radio condition based power balancing scheme time instants t 1 t 3 in fig6 are different from those shown in fig2 the apc knows the transmit power used on chunk 4 by the cells and therefore no overhead signaling is required for the apc to withdraw the token or tokens say the token is withdrawn token 0 from cell a the ap in cell a freezes its transmit power on its current value that is the ap continues to transmit on chunk 4 with the power value it had when the token was withdrawn following the withdrawal of the token from cell a the apc checks the result on the system using a global perspective in particular the apc checks to see if the cqi distribution in fig4 has changed hopefully it has and the cqi distribution now looks as in fig7 wherein the cqi is about the same in all cells the cqi of cell d has decreased slightly but is still acceptable by withdrawing the token from the neighbor cell a the co channel interference to cell b will decrease which in turn improves cqi in cell b other cells may also be influenced since they have their power control active if the improvement in cqi at cell b persists in the green region gr for a time longer than t 4 u2212 t 3 t 2 for curve 9 the apc now re assigns token 1 a token to cell a a token is neither assigned.