Systems, methods and means for implementing a method for controlling discontinuous reception (DRX) are provided. A wireless transmit / receive unit (WTRU) may enter the DRX state on the first cell layer. The WTRU may transmit the DRX indication of the first cell layer on the second cell layer. The WTRU may receive an inactivation signal corresponding to the first cell layer on the second cell layer. The WTRU may deactivate the first cell layer based on the deactivation signal received on the second cell layer. The WTRU may receive an activation signal corresponding to the first cell layer on the second cell layer. The WTRU may activate the first cell layer based on the activation signal.
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