SELECTING A USER PLANE FUNCTION (UPF) ENTITY AT A POLICY CONTROL FUNCTION (PCF) ENTITY BASED ON TERMINAL LOCATION CHANGE INFORMATION PROVIDED FROM A SESSION MANAGEMENT FUNCTION (SMF) ENTITY

摘要

An apparatus and method are provided for steering a protocol data unit (PDU) session associated with traffic routed to a selected user plane function (UPF). The method includes receiving, from an application function (AF), a first message including information identifying a UPF toward which traffic routing is applied and information on a spatial condition of a terminal location; receiving, from asession management function (SMF) device, a second message including information on a change of the terminal location in an area of interest determined based on the spatial condition; selecting a UPFbased on the information identifying the UPF and the information on the change of the terminal location; and transmitting, to the SMF device, a third message including information on the selected UPFfor steering a PDU session associated with traffic routed to the selected UPF.