USER PLANE FUNCTION SWITCHING METHOD AND APPARATUS SUPPORTING ULTRA-RELIABLE LOW-LATENCY COMMUNICATION

摘要

Provided in the embodiments of the present application are a user plane function switching method and apparatus supporting ultra-reliable low-latency communication. The method comprises: according to a session establishment request of a UE, establishing a first UPF for local offloading; according to location information, slice information and a local offloading rule, establishing a second UPF for local offloading; sending a session update message to an SMF, with the session update message comprising deployment information of the first UPF and the second UPF; receiving a session update response message sent by the SMF, with the session update response message comprising N4 information of the second UPF; switching to the second UPF according to the session update response message; and when a latency deletion timer expires or no traffic passes through the first UPF within a preset time period, releasing the first UPF.