Cell size optimization for energy savings in cellular networks with hybrid energy supplies

摘要

Technologies are generally described for reducing the from-power-grid energy consumption of a wireless network such as a cellular network over a period of time through cell size adaptations. According to some examples, cell sizes for the base stations may be optimized by decomposing the cell size optimization into two approaches: a multi-stage energy allocation approach and an energy consumption minimization approach. By implementing an energy allocation policy based on available energy type (e.g., from-power-grid or renewable) and an approximation technique for the energy consumption minimization, cell size optimization for each base station may be achieved resulting in network-wide enhancement of renewable energy usage vs. from-power-grid energy usage.

主权项

1. A method to manage hybrid energy use in a cellular communication network through cell size adjustment, the method comprising:
determining an energy consumption by base stations in the cellular communication network; instructing the base stations to perform a multistage energy allocation (MEA) for each of the base stations to determine an amount of the energy consumption to be allocated at each of the base stations during updates of cell sizes for each of the base stations, wherein an energy allocation for each of the base stations depends on energy allocations for remaining base stations; instructing the base stations to adjust a transmit power according to the energy allocation for each of the base stations; and controlling the hybrid energy use in the cellular communication network to reduce the energy consumption of each of the base stations, wherein the controlling includes:
instructing the base stations to reduce energy consumption during the updates of the cell sizes for each of the base stations; andcausing an adjustment of the cell sizes for each of the base stations based on one of: a selection of end devices to remain in respective cells and a switch to another base station based on the adjusted transmit power of respective base stations.