A mobile terminal device includes a processing circuit and a receiver circuit. The processing circuit is configured to determine if a multimedia data stream associated with a mobile communication network is received, identify a set of reception timing occasions of the multimedia data stream, and calculate an alternate radio measurement schedule based on the set of reception timing occasions. The receiver circuit is configured to receive the multimedia data stream and perform one or more radio measurements according to the alternate radio measurement schedule if the multimedia data stream is received while the mobile terminal device is in an idle radio connection state, and perform one or more radio measurements according to a default radio measurement schedule if no multimedia data stream is received while the mobile terminal device is in the idle radio connection state.