A method for assessing the channel coefficients or the interference impact on a user equipment of a specific base station includes causing an interfering transmitter in the network to transmit data at substantially different power levels for each of at least two predefined frequency-resources each consisting of at least a part of a respective frequency channel, instructing the user equipment to measure and report to the serving base station at least one parameter associated with reception of the downlink signals that is indicative of channel coefficients or of an effect of the interfering signals and processing the results in order to assess the channel coefficients or the effect of the interfering signals.