Patent ID: 8095139

Claim:
A method of assigning a cell and resource blocks to a wireless transmit/receive unit, WTRU, the method comprising: determining a current cell and a resource block that a WTRU is allocated to; determining path losses between the WTRU and cells neighboring the current cell; determining an expected change of inter-cell interference generated based on the WTRU being allocated to each neighboring cell and resource block among all possible candidate cell and resource block combinations, subject to the constraint of a predetermined power of the WTRU and a predetermined level of cell interference; assigning the WTRU to the candidate cell with the resource block having the lowest expected change of intercell interference required to support a predetermined bit rate of the WTRU on an uplink based on the predetermined power of the WTRU and the predetermined level of cell interference; estimating the required transmission power, TxPower, of the WTRU based on a required signal-to-interference ratio, SIR, the average level of inter-cell interference on the candidate cell and resource block, I cand , and the path loss to the candidate cell, L cand , based on the following formula: TxPower(dBm)=SIR(dB)+ L cand (dB)+ I cand (dBm), calculating the resulting level of inter-cell interference, ΔI i , generated by the WTRU at each neighboring cell, i, and resource block, j, based on the required transmission power and the path loss between the WTRU and the neighboring cell L i : Δ I i (dBm)=TxPower(dBm)− L i (dB), estimating the relative increase of inter-cell interference, I ij /I ij , on each resource block at each cell based on the pre-existing level of inter-cell interference: I ij '/I ij (dB)=10 log 10[1 +ΔI i (mW)/ I ij (mW)].