RF path management for energy efficient cellular newtworks

摘要

The present invention relates to a method for communication in a cellular communication network. The cellular communication network comprises at least one central unit and at least two base stations. At least one base station comprises multiple antennas and multiple RF paths feeding the antennas for MIMO transmission. At the central unit, the minimum number of RF paths in a base station to achieve a target performance metric is determined and the determined minimum number is transmitted to the base station. The present invention further relates to a base station and a cellular communication system.