An apparatus comprising a buffer estimation module for estimating if a base station has data buffered for a mobile communication device is provided. The apparatus further comprises a scheduling estimation module for determining how frequently the mobile communication device has been scheduled to receive data from the base station, a radio quality module for determining a radio quality indication of a communication channel between the mobile communication device and the base station, and a throughput estimation module for predicting downlink throughput from the base station to the mobile communication device based on at least output from the buffer estimation module, the frequency estimation module and the radio quality module.