A method comprising: changing at least one radio network parameter for a reference cluster of cells, wherein the reference cluster of cells includes a first cell and a plurality of cells that neighbor the first cell; monitoring resource loading and at least one performance indicator of the reference cluster of cells; and repeating the changing and the monitoring until one of: resource loading of the reference cluster of cells is decreased below a resource loading threshold; and the at least one performance indicator indicates degraded performance for the reference cluster of cells, further comprising selecting the first cell for the reference cluster of cells from a plurality of cells in a cellular network, wherein the first cell has a radio resource utilization that exceeds a predetermined threshold; and selecting each of the plurality of cells that neighbor the first cell for the reference cluster of cells based on at least one of: each of the plurality of cells being defined as intra frequency neighbor cells of the first cell; and each of the plurality of cells having a signal strength as measured by user equipment associated with the first cell that exceeds one or more signal strength thresholds. changing at least one radio network parameter for a reference cluster of cells, wherein the reference cluster of cells includes a first cell and a plurality of cells that neighbor the first cell; monitoring resource loading and at least one performance indicator of the reference cluster of cells; and repeating the changing and the monitoring until one of: resource loading of the reference cluster of cells is decreased below a resource loading threshold; and the at least one performance indicator indicates degraded performance for the reference cluster of cells, further comprising selecting the first cell for the reference cluster of cells from a plurality of cells in a cellular network, wherein the first cell has a radio resource utilization that exceeds a predetermined threshold; and selecting each of the plurality of cells that neighbor the first cell for the reference cluster of cells based on at least one of: each of the plurality of cells being defined as intra frequency neighbor cells of the first cell; and each of the plurality of cells having a signal strength as measured by user equipment associated with the first cell that exceeds one or more signal strength thresholds. resource loading of the reference cluster of cells is decreased below a resource loading threshold; and the at least one performance indicator indicates degraded performance for the reference cluster of cells, further comprising selecting the first cell for the reference cluster of cells from a plurality of cells in a cellular network, wherein the first cell has a radio resource utilization that exceeds a predetermined threshold; and selecting each of the plurality of cells that neighbor the first cell for the reference cluster of cells based on at least one of: each of the plurality of cells being defined as intra frequency neighbor cells of the first cell; and each of the plurality of cells having a signal strength as measured by user equipment associated with the first cell that exceeds one or more signal strength thresholds. each of the plurality of cells being defined as intra frequency neighbor cells of the first cell; and each of the plurality of cells having a signal strength as measured by user equipment associated with the first cell that exceeds one or more signal strength thresholds. <EOS>