Abstract: The energy-savings state of a cellular network access area is determined at the cluster level where each cluster includes multi-carrier sectors having high handover attempts to one another. To determine if the cluster can transition into an energy-savings state, key performance indicators for the cluster are evaluated. Each sector-level KPIs is converted into a cluster-level KPI by taking the maximum value of the sector-level KPI across the cluster. The cluster-level KPIs can indicate that the cluster can transition into the energy-savings state when the cluster's user count and/or its capacity utilization are lower than first predetermined threshold values. The order that each frequency layer in the cluster transitions into and out of an energy-savings state is determined by the frequency layer's energy-savings priority.