Base station, user equipment and related method

The invention provides a method in a base station. The method comprises the steps of transmitting a measurement configuration set to user equipment (UE), wherein the measurement configuration set comprises one or more measurement configurations, and each measurement configuration is used for configuring measurement which aims at a non-authorized carrier; receiving a measurement report set from the UE, wherein the measurement report set comprises one or a plurality of measurement reports, and each measurement report is related with one non-authorized carrier which is configured by at least one measurement configuration in the measurement configuration set; and according to the measurement report set, allocating a resource on one or more non-authorized carriers to the UE according to the measurement report set.