A mobile station (MS) operating within a radio network includes a processing unit having an active mode and an inactive mode. The mobile station includes a transmitter in communication with the processing unit. The mobile station includes a memory in communication with the processing unit for storing uplink payload. The mobile station includes a radio interface in communication with the radio network and the transmitter; when there is uplink payload to transmit when the processing unit is in the inactive mode, the transmitter transmitting an activity indication to a base station over the radio interface, the processing unit changing to active mode, and the transmitter transmitting the uplink payload to the base station over the radio interface. A method for a mobile station operating within a radio network. A method for a base station operating within a radio network.