Method and arrangement in a base station controller for admission control of a user equipment, to be served by a base station controlled by the base station controller, the base station, the base station controller and the user equipment are comprised within a wireless communication system. The method comprising the steps of receiving an admission request from the user equipment, computing an admission criteria value K, calculating a user weight value W for the user equipment, comparing the calculated user weight value W with the computed admission criteria value K, admitting the user equipment to be served by the base station, if the calculated user weight value W is smaller than the computed admission criteria value K.