Apparatuses to switch between LTE rat and NR rat during transition from inactive state to active state

An apparatus of a Radio Access Network (RAN) node, the apparatus comprising:

• an interface to radio frequency (RF) circuitry;
• and
• one or more processors to:
• process information directed to a User Equipment (UE) that was previously connected to the RAN node during an active state but that has since transitioned to an inactive state;
• cause, in response to the information directed to the UE, another RAN node to prompt the UE to transition from the inactive state to the active state, the RAN node corresponding to a first Radio Access Technology (RAT) and the another RAN node corresponding to a second RAT that is different than the first RAT;
• receive, from the another RAN node, a request for context information regarding a connection previously established between the RAN node and the UE, the request including security information and a UE identity (ID) previously assigned to the UE by the RAN node;
• compare the received security information with other security information previously stored by the RAN node;
• determine an authenticity of the UE;
• and
• provide the context information based on the UE ID to the another RAN node, the context information comprising the determined authenticity of the UE.

An apparatus of a User Equipment (UE), the apparatus comprising:

• an interface to radio frequency (RF) circuitry;
• and
• one or more processors to:
• establish, via the interface to the RF circuitry, a wireless connection with a Radio Access Network (RAN) node corresponding to a first Radio Access Technology (RAT);
• receive, via the interface to the RF circuitry, a UE ID assigned to the UE by the RAN node;
• transition from an active state to an inactive state;
• receive, via the interface to the RF circuitry and from another RAN node, a prompt to transition from the inactive state to the active state, the another RAN node corresponding to a second RAT that is different than the first RAT;
• communicate, via the interface to the RF circuitry and to the another RAN node, a request to establish a connection with the another RAN node, the request including the UE ID;
• receive, via the interface to the RF circuitry and from the another RAN node, configuration information for establishing the connection with the another RAN node;
• establish the connection based on the configuration information;
• and
• communicate, via the interface to the RF circuitry, with the another RAN node;
• wherein the UE is configured to communicate with multiple RATs;
• wherein the apparatus is configured to store context information for each RAT the UE is configured to communicate with.