Method for cooperative control of power among base stations and base station device using same

摘要

A method for cooperative control of power among base stations and a base station device which performs the same are discussed. A first receiving unit is configured such that a specific base station in a cooperative unit receives, from a specific terminal located on a cell edge of the specific base station, token value information which indicates an average transmission rate of the specific terminal and the up-to-date level of satisfaction of the minimum average transmission rate of the specific terminal. A second receiving unit receives, from one or more other base stations in the cooperative unit, information containing an average transmission rate of terminals located on edges of each of the base stations, token values of terminals located on cell edges of each of the base stations, and the current power levels of each of one or more base stations.

主权项

1. A method for controlling power cooperatively among two or more base stations (BSs) in a cooperative unit, the method comprising:
receiving, at a specific BS in the cooperative unit from a specific user equipment (UE) located on a cell edge of the specific BS, an average transmission rate of the specific UE and a token value that indicates an up-to-date level of satisfaction of a minimum average transmission rate of the specific UE; receiving, at the specific BS, information including average transmission rates of UEs located on cell edges of one or more other BSs in the cooperative unit, token values of the UEs located on the cell edges, and current power levels of the one or more other BSs from the one or more other BSs; calculating, at the specific BS, a first power level vector of each of the BSs in the cooperative unit, which guarantees minimum average transmission rates of UEs located on cell edges of the BSs, using the minimum average transmission rates and token values of the specific UE and the UEs located on the cell edges of the one or more other BSs in the cooperative unit; and calculating, at the specific BS, a second power level vector corresponding to an updated power level of each of the BSs in the cooperative unit based on current power levels of the BSs and the first power level.