Abstract: A method for evaluating effect of a change in a communications network includes receiving a first set of performance indicator values. measured over a first period of time before the change in the communications network; receiving a second set of performance indicator values with performance indicator values measured over a second period of time after the change in the communications network; comparing the first set and the second set to evaluate the effect of the change; determining a performance threshold based on the performance indicator values of the first set; determining a first performance ratio value based on the performance indicator values of the first set and the performance threshold; determining a second performance ratio value based on the performance indicator values of the second set and the performance threshold and providing output based on the first performance ratio value and the second performance ratio value.

Abstract: A computer implemented method for energy savings management for cells of a sector or a base station of a communication network. The sector or base station has co-located cells that operate on different frequency bands. The method is performed by obtaining a default energy savings plan that calls for fully shutting down at least one of the cells for a first time period and provides a first amount of energy savings; evaluating energy savings achievable by using partial shutdown in cells and determining a second time period of partial shutdown that is needed for achieving the first amount of energy savings; obtaining a third time period that is usable for energy savings actions; and choosing to use partial shutdown in the cells, if the second time period is shorter than the third time period, and else choosing to use the default energy saving plan.

Abstract: A method for evaluating effect of a change in a communications network includes receiving a first set of performance indicator values. measured over a first period of time before the change in the communications network; receiving a second set of performance indicator values with performance indicator values measured over a second period of time after the change in the communications network; comparing the first set and the second set to evaluate the effect of the change; determining a performance threshold based on the performance indicator values of the first set; determining a first performance ratio value based on the performance indicator values of the first set and the performance threshold; determining a second performance ratio value based on the performance indicator values of the second set and the performance threshold and providing output based on the first performance ratio value and the second performance ratio value.

Abstract: A computer implemented method of energy saving management for a source cell in a communication network. The method includes obtaining performance data of the source cell and a plurality of neighbor cells; determining and feeding input variable values to an energy saving management function based on the performance data and network topology of the communication network, wherein the input variables comprise variables representative of: 1) Overlap between the source cell and the neighbor cells, 2) Neighbor cell throughput, and 3) Source cell throughput; wherein the energy saving management function provides output based on combination of the input variables. Energy saving mode for the source cell is determined based on the output of the energy saving management function.

Abstract: A computer implemented method of energy consumption management and scheduling of cell shutdown periods in a communication network. The method includes individually scheduling daily shutdown period for certain target cells of the communication network by performing the following for each target cell: collecting usage data from a monitored cell for a first period of time, wherein the target cell and the monitored cell operate on different frequency bands and serve at least partially the same geographical area; comparing the usage data with a threshold value to determine a low-load period in the monitored cell; and scheduling a shutdown period for the target cell during the low-load period in the monitored cell.