The previous section evaluated the busy time mean and peak backhaul traffic for single cell and tricelleNodeBs, which is applicable to provisioning of last mile backhaul. Figure 8 shows how these figures canbe used to provision backhaul capacity in the aggregation and core parts of the transport network for anynumber of eNodeBs. We consider the correlation between the peak cell throughputs across a number ofaggregated eNodeBs. Figure 8 illustrates two bounds: An upper bound assumes that peak throughputsoccur at the same moment in all cells. This is a worst case scenario, is highly unlikely to occur in practice,and would be an expensive provisioning strategy. The lower bound assumes peaks are uncorrelated but thatthe busy time mean applies to all cells simultaneously.