A method for operating a user equipment, UE, the method comprising: • after an initial network entry to a base station, executing, by the UE being in a first operating state, a non-session based background application, wherein the non-session based background application is used to communicate with the base station by using background messages; • transmitting (step 905), by the UE in the first operating state during the execution of the non-session based background application, a first message including a dedicated connection signature to the base station, the dedicated connection signature being for identifying the UE at the base station, wherein the dedicated connection signature is obtained by the UE when it is in a second operating state from the base station after the initial network entry to the base station, ∘ wherein the first operating state supports data transmission and reception without a dynamic resource allocation grant from the base station, and the first operating state supports the non-session based background application without supporting a session based foreground application, the session based foreground application being used to communicate with the base station by using foreground messages, ∘ wherein the second operating state supports data transmission and reception with an active connection management, and the second operation state supports both, the non-session based background application and the session based foreground application; • receiving (step 907), by the UE, a response message from the base station after the transmission of the first message to the base station; and • transitioning (step 909), by the UE, to the second operating state after the reception of the response message. • after an initial network entry to a base station, executing, by the UE being in a first operating state, a non-session based background application, wherein the non-session based background application is used to communicate with the base station by using background messages; • transmitting (step 905), by the UE in the first operating state during the execution of the non-session based background application, a first message including a dedicated connection signature to the base station, the dedicated connection signature being for identifying the UE at the base station, wherein the dedicated connection signature is obtained by the UE when it is in a second operating state from the base station after the initial network entry to the base station, ∘ wherein the first operating state supports data transmission and reception without a dynamic resource allocation grant from the base station, and the first operating state supports the non-session based background application without supporting a session based foreground application, the session based foreground application being used to communicate with the base station by using foreground messages, ∘ wherein the second operating state supports data transmission and reception with an active connection management, and the second operation state supports both, the non-session based background application and the session based foreground application; ∘ wherein the first operating state supports data transmission and reception without a dynamic resource allocation grant from the base station, and the first operating state supports the non-session based background application without supporting a session based foreground application, the session based foreground application being used to communicate with the base station by using foreground messages, ∘ wherein the second operating state supports data transmission and reception with an active connection management, and the second operation state supports both, the non-session based background application and the session based foreground application; • receiving (step 907), by the UE, a response message from the base station after the transmission of the first message to the base station; and • transitioning (step 909), by the UE, to the second operating state after the reception of the response message.