A method in a base station of a wireless communication system that utilizes a second Radio Access Technology, RAT, the method comprising: receiving, by the base station, a request of a User Equipment, UE, to resume a suspended connection of the UE with the wireless communication system via the base station, the request of the UE including a resume message authentication code generated by the LTE based on a cell identity of the base station and an integrity protection algorithm configured by a previous base station that previously serviced the connection of the UE with the wireless communication system utilizing a first RAT; determining, by the base station and based on information included in the request of the UE to resume the suspended connection, an identity of the previous base station; transmitting, by the base station to the previous base station, a request for information corresponding to the connection of the UE with the wireless communication system via the previous base station utilizing the first RAT, the request for information including the resume message authentication code; receiving, by the base station from the previous base station, information associated with the one or more configurations corresponding to the connection of the UE with the wireless communication system via the previous base station utilizing the first RAT, the received information including an indication of at least one of a signaling radio bearer configuration, a data radio bearer configuration, a radio resource configuration, or a measurement configuration; generating, by the base station and based on the information received from the previous base station, one or more configurations corresponding to resuming the suspended connection of the UE with the wireless communication system via the base station utilizing the second RAT; and transmitting, by the base station to the UE, a response to the request of the LTE, the response indicating the one or more configurations. receiving, by the base station, a request of a User Equipment, UE, to resume a suspended connection of the UE with the wireless communication system via the base station, the request of the UE including a resume message authentication code generated by the LTE based on a cell identity of the base station and an integrity protection algorithm configured by a previous base station that previously serviced the connection of the UE with the wireless communication system utilizing a first RAT; determining, by the base station and based on information included in the request of the UE to resume the suspended connection, an identity of the previous base station; transmitting, by the base station to the previous base station, a request for information corresponding to the connection of the UE with the wireless communication system via the previous base station utilizing the first RAT, the request for information including the resume message authentication code; receiving, by the base station from the previous base station, information associated with the one or more configurations corresponding to the connection of the UE with the wireless communication system via the previous base station utilizing the first RAT, the received information including an indication of at least one of a signaling radio bearer configuration, a data radio bearer configuration, a radio resource configuration, or a measurement configuration; generating, by the base station and based on the information received from the previous base station, one or more configurations corresponding to resuming the suspended connection of the UE with the wireless communication system via the base station utilizing the second RAT; and transmitting, by the base station to the UE, a response to the request of the LTE, the response indicating the one or more configurations.