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.