Patent ID: 11212742

Abstract:
A UPF element selection method includes: judging, by a SMF element, whether a target RAN node is connected to a current UPF element; if not, determining that a user terminal is moved out of a current UPF service area; sending, by the SMF element, a resource acquisition request to a NRF, a resource response message including a UPF list, wherein the UPF list includes a UPF address, and a service application ID list supported by the UPF element; receiving, by the SMF element, the resource response message fed back by the NRF; judging, by the SMF element, whether a current service application ID carried by the user terminal belongs to the service application ID list supported by the UPF element; and if yes, accessing the user terminal to a target UPF element. A UPF element selection device using the UPF element selection method is provided.