A method for measurement reporting by a user equipment, UE, n a mobile network, wherein measurement objects and measurement identities are configured for the UE by a base station to trigger measurement reporting from the UE, wherein a measurement object is associated with a particular carrier frequency, and wherein to trigger measurement reporting from a UE, the base station configures one or more measurement identities for a UE, each measurement identity being associated with a measurement object and a reporting configuration, the method comprising: identifying a measurement reporting trigger event for a list of component carriers, CCs, defined for a measurement identity, the list of CCs being within a set of component carriers assigned to the UE by the base station, the measurement reporting trigger event comprising a comparison of the signal quality of the CCs in said list of CCs with the signal quality of a neighboring cell; and upon detecting that the measurement reporting trigger event is satisfied, transmitting a measurement report, wherein the measurement reporting trigger event is configured to trigger the transmission when the signal quality of at least one component carrier in the list of CCs defined for the measurement identity becomes worse than a first configured threshold while the signal quality of the neighboring cell on a carrier frequency corresponding to the measurement object becomes better than a second configured threshold, wherein a frequency of the neighboring cell is equal to the carrier frequency corresponding to the measurement object associated with the measurement reporting trigger event, wherein a frequency of the at least one component carrier in the list of CCs differs from the carrier frequency corresponding to the measurement object associated with the measurement reporting trigger event, and wherein one measurement object corresponds to one carrier frequency of carrier frequencies of the set of assigned component carriers. identifying a measurement reporting trigger event for a list of component carriers, CCs, defined for a measurement identity, the list of CCs being within a set of component carriers assigned to the UE by the base station, the measurement reporting trigger event comprising a comparison of the signal quality of the CCs in said list of CCs with the signal quality of a neighboring cell; and upon detecting that the measurement reporting trigger event is satisfied, transmitting a measurement report, wherein the measurement reporting trigger event is configured to trigger the transmission when the signal quality of at least one component carrier in the list of CCs defined for the measurement identity becomes worse than a first configured threshold while the signal quality of the neighboring cell on a carrier frequency corresponding to the measurement object becomes better than a second configured threshold, wherein a frequency of the neighboring cell is equal to the carrier frequency corresponding to the measurement object associated with the measurement reporting trigger event, wherein a frequency of the at least one component carrier in the list of CCs differs from the carrier frequency corresponding to the measurement object associated with the measurement reporting trigger event, and wherein one measurement object corresponds to one carrier frequency of carrier frequencies of the set of assigned component carriers.