tion of RBs: power allocation is set at the maximum power for each RB, denoted as Pmax' and the allocation of RBs was carried out as described in Section 8.5.1 to maximize the QUR. Phase 2 is the power reduction. This can be structured as a game but by applying the con- straints that (i) RB allocation is unchanged and (ii) no user that is already qualified is allowed to become unqualified, it is possible to simplify the process because none of the users is actually competing against any other. This is because reducing the power to a user reduces the co-channel interference and hence improves the SINR for users allo- cated that RB in adjacent cells - no user is adversely affected. However, it should be noted that although there is only one variable for each RB, the transmit power Pn, (m), there are two constraints to be met: The sSINR: The candidates for power reduction are those users that meet the sSINR requirement and have more received power than the minimum for detection. The implementation is as follows: Step 1: Initialize by calculating the interference map and the sSINR (yn,i) for each RB allo- cated to each qualified user using the RBs already allocated and set the power on each RB Pn, to be the maximum transmit power for an RB: Pmax Note that (i) unqualified users have power set to 0 and no RBs allocated and (ii) that it is assumed here that for any given user the power on each RB is the same and the consequences of that assumption are considered later. Step 2: For each qualified user: (i) Calculate the transmit power required to reduce the sSINR to ymin and the equivalent receive power price R(sSINR target) (ii) Check whether the received power Pn.i R(sSINR target) satisfies the receive power con- straint print print then the receive power is sufficient SO set the value of Pn,i for the next loop to be Pn.i /hn using the worst value of hn.(m) for the RBs allocated to that user. Go back to Step 2(i) for the next user. 8.4 Radio Resource Allocation that Considers Spectrum Sharing R(sSINR target) (iv) If Pn