A method for controlling bearers in a core network includes receiving, from a user equipment (UE) device, a request for access to network resources, where the core network is coupled with a primary radio access technology (RAT) and a secondary RAT. The method includes determining an access point name (APN) RAT access restriction in response to the received request, where the APN RAT access restriction associates an APN with a corresponding RAT, where the corresponding RAT comprises at least one of the primary RAT or the secondary RAT. The method also includes assigning a radio bearer based on the determined APN RAT access restriction, wherein the assigned radio bearer exchanges data via the corresponding RAT; and identifying, to a master node, the assigned radio bearer for exchanging data between the UE device and a device specified by the APN via the corresponding RAT.