Systems, methods, apparatuses, and computer program products supporting LTE-new radio (NR) interworking are provided. One method includes detecting, by a user equipment (UE) in connected mode and having dual connectivity with a master node and secondary node established, of inactivity for the master node. Based on the detection of the inactivity of the master node, the UE enters into a power saving state. A signaling radio bearer (SRB) of the secondary node is pre-configured prior to the entering into the power saving state. At the same time as entering the power saving state, the UE signals to the secondary node that the UE is entering into the power saving state and activates the signaling radio bearer (SRB) of the secondary node.