According to one aspect of the present disclosure, a method is disclosed in a user equipment (UE) for performing downlink measurements on a plurality of cells according to a received measurement configuration. The UE receives measurement configuration information from a radio base station supporting a serving cell of a wireless communications network, the measurement configuration information including an indication of a variably sized measurement bandwidth over which measurements are to be performed on the serving cell and one or more neighbor cells. The UE performs measurements on each of the serving cell and the one or more neighbor cells over the measurement bandwidth, and reports the measurements to the network.