A terminal (101, 800) for controlling a state in a wireless communication system, the terminal comprising: a communication unit configured to transmit and receive signals to and from a base station (103, 900); and a control unit electrically connected to the communication unit and configured to monitor (203, 301, 403, 503, 603) a plurality of traffic transmission/receptions associated with a plurality of applications executed on the terminal (101, 800), configured to determine (205, 305, 405 505, 605) whether a traffic is predicted to not occur for a predetermined duration based on the monitoring result, configured to evaluate, when the traffic is predicted to not occur for the predetermined duration, at least one of conditions for determining whether it is possible to transmit a Signaling Connection Release Indication, SCRI, message, configured to control the communication unit to transmit (211, 411, 511, 611) the SCRI message including information indicating the inactivity level of the terminal based on the evaluated conditions to the base station (103, 900), and configured to receive a Radio Resource Control, RRC, message for transitioning the RRC connection state of the terminal, wherein the control unit is configured to identify the information indicating an inactivity level of the terminal a traffic transmission/reception pattern based on periodic traffic transmission/reception associated with the plurality of applications, wherein the traffic associated with each of the plurality of applications is generated periodically, and to determine whether the traffic is predicted to not occur for the predetermined duration based on the traffic transmission/reception pattern, and wherein the conditions are based on at least one of current operating state, connection to a circuit switched, CS, domain, discontinuous reception, DRX, configuration parameter, timer T323 for use in RRC connection control and variable V316 for use in the RRC connection control, wherein the RRC connection state of the terminal is determined, if the information indicating the inactivity level of the terminal is: equal to or greater than a first threshold value, to transition the state of the terminal to UE idle mode, or less than the first threshold value, to transition the state of the terminal to one of CELL PCH and CELL_FACH. a communication unit configured to transmit and receive signals to and from a base station (103, 900); and a control unit electrically connected to the communication unit and configured to monitor (203, 301, 403, 503, 603) a plurality of traffic transmission/receptions associated with a plurality of applications executed on the terminal (101, 800), configured to determine (205, 305, 405 505, 605) whether a traffic is predicted to not occur for a predetermined duration based on the monitoring result, configured to evaluate, when the traffic is predicted to not occur for the predetermined duration, at least one of conditions for determining whether it is possible to transmit a Signaling Connection Release Indication, SCRI, message, configured to control the communication unit to transmit (211, 411, 511, 611) the SCRI message including information indicating the inactivity level of the terminal based on the evaluated conditions to the base station (103, 900), and configured to receive a Radio Resource Control, RRC, message for transitioning the RRC connection state of the terminal, wherein the control unit is configured to identify the information indicating an inactivity level of the terminal a traffic transmission/reception pattern based on periodic traffic transmission/reception associated with the plurality of applications, wherein the traffic associated with each of the plurality of applications is generated periodically, and to determine whether the traffic is predicted to not occur for the predetermined duration based on the traffic transmission/reception pattern, and wherein the conditions are based on at least one of current operating state, connection to a circuit switched, CS, domain, discontinuous reception, DRX, configuration parameter, timer T323 for use in RRC connection control and variable V316 for use in the RRC connection control, wherein the RRC connection state of the terminal is determined, if the information indicating the inactivity level of the terminal is: equal to or greater than a first threshold value, to transition the state of the terminal to UE idle mode, or less than the first threshold value, to transition the state of the terminal to one of CELL PCH and CELL_FACH.