A method performed by a macro cell base station in a heterogeneous network wireless communication system including the macro cell base station and a small cell base station, wherein the small cell is an enhanced Inter-Cell Interference Cancellation, eICIC, partner cell of the macro cell, the method comprising: transmitting a first measurement report configuration message, including first information on a first A3 offset value and a first cell individual offset, CIO, value for the small cell base station to trigger a transmission of a first measurement report, to a plurality of user equipments, UEs, served by the macro cell base station, wherein the plurality of UEs are in a serving area of the macro cell base station and out of a shared cell area of the macro cell base station and the small cell base station; receiving the first measurement report transmitted by a UE from the plurality of the UEs when the A3 event condition of the first measurement report configuration is satisfied, wherein the UE is in the shared cell area, and wherein the UE includes a first type UE that supports an enhanced Inter-Cell Interference Coordination, eICIC, function, and a second type UE that supports a further enhanced Inter-Cell Interference Coordination, FeICIC, function; transmitting a second measurement report configuration message, including second information on a second A3 offset value and a second CIO value for the small cell base station to trigger a transmission of a second measurement report, to the UE; receiving the second measurement report transmitted by the UE when the A3 event condition of the second measurement report configuration is satisfied; and instructing the UE to perform a handover to the small cell;wherein the first CIO value and the second CIO values for the small cell configured for the UE are different and are specific to the type of the UE. transmitting a first measurement report configuration message, including first information on a first A3 offset value and a first cell individual offset, CIO, value for the small cell base station to trigger a transmission of a first measurement report, to a plurality of user equipments, UEs, served by the macro cell base station, wherein the plurality of UEs are in a serving area of the macro cell base station and out of a shared cell area of the macro cell base station and the small cell base station; receiving the first measurement report transmitted by a UE from the plurality of the UEs when the A3 event condition of the first measurement report configuration is satisfied, wherein the UE is in the shared cell area, and wherein the UE includes a first type UE that supports an enhanced Inter-Cell Interference Coordination, eICIC, function, and a second type UE that supports a further enhanced Inter-Cell Interference Coordination, FeICIC, function; transmitting a second measurement report configuration message, including second information on a second A3 offset value and a second CIO value for the small cell base station to trigger a transmission of a second measurement report, to the UE; receiving the second measurement report transmitted by the UE when the A3 event condition of the second measurement report configuration is satisfied; and instructing the UE to perform a handover to the small cell;wherein the first CIO value and the second CIO values for the small cell configured for the UE are different and are specific to the type of the UE.