A method in a wireless network comprising a macro cell , the method comprising: receiving , at the macro cell , a measurement report from a user equipment 'UE', wherein the measurement report indicates a cell identity of a small cell and at least one of a reference signal receive power 'RSRP' or reference signal receive quality 'RSRQ' of a reference signal transmitted by the small cell , wherein the small cell is in a discontinuous transmission 'DTX' mode and the reference signal is discontinuously transmitted by the small cell in a predefined subframe pattern, and wherein the measurement report is received from the UE when the UE determines that at least one of the RSRP or RSRQ exceeds a predefined threshold; determining , at the macro cell , entry of the UE into a coverage area of the small cell in response to receiving the measurement report from the UE; transmitting, to the UE by the macro cell , transmit power information associated with the small cell , wherein the transmit power information indicates signal transmit power of the small cell for downlink transmission and is included in at least one of a downlink control information 'DCI' format, or a radio resource control 'RRC' message, and the transmit power information is used by the UE to receive data signals from the small cell ; and sending , by the macro cell , a message to the small cell to cause the small cell to enter an active mode to serve the UE. receiving , at the macro cell , a measurement report from a user equipment 'UE', wherein the measurement report indicates a cell identity of a small cell and at least one of a reference signal receive power 'RSRP' or reference signal receive quality 'RSRQ' of a reference signal transmitted by the small cell , wherein the small cell is in a discontinuous transmission 'DTX' mode and the reference signal is discontinuously transmitted by the small cell in a predefined subframe pattern, and wherein the measurement report is received from the UE when the UE determines that at least one of the RSRP or RSRQ exceeds a predefined threshold; wherein the measurement report indicates a cell identity of a small cell and at least one of a reference signal receive power 'RSRP' or reference signal receive quality 'RSRQ' of a reference signal transmitted by the small cell , wherein the small cell is in a discontinuous transmission 'DTX' mode and the reference signal is discontinuously transmitted by the small cell in a predefined subframe pattern, and wherein the measurement report is received from the UE when the UE determines that at least one of the RSRP or RSRQ exceeds a predefined threshold; determining , at the macro cell , entry of the UE into a coverage area of the small cell in response to receiving the measurement report from the UE; transmitting, to the UE by the macro cell , transmit power information associated with the small cell , wherein the transmit power information indicates signal transmit power of the small cell for downlink transmission and is included in at least one of a downlink control information 'DCI' format, or a radio resource control 'RRC' message, and the transmit power information is used by the UE to receive data signals from the small cell ; and sending , by the macro cell , a message to the small cell to cause the small cell to enter an active mode to serve the UE. <EOS>