Methods and systems to decentralize managing of neighboring femtocells. The methods and systems include communication to a first femtocell from a second femtocell of next information that includes communicated information of: i) the interference requirement constraint of an active user of the second femtocell, and ii) one or more parameters characterizing a physical radio channel defined from the first femtocell to the at least one active user of the second femtocell; the self-configuration of the transmission parameters of the first femtocell based upon the communicated information i) and ii). Another method (and system to implement the method) includes the mutual adjustment of the interference requirement constraints between a first and a second femtocell, regarding their active users, in a decentralized manner, on the basis of not affecting the transmission performance of the rest of the plurality of femtocells.