Method and device for supporting UE mobility between networks

Abstract

The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method of an AMF entity of the present disclosure comprises the steps of: receiving a registration request message for network registration from a UE moved from a first network that is an SNPN to a second network, wherein the registration request message includes temporary ID information of the UE and network ID (NID) information of the first network to which the temporary ID information is allocated; identifying a first AMF entity belonging to the first network on the basis of the temporary ID information and the NID information; transmitting, to the first AMF entity, a request message for requesting context information of the UE; and receiving a response message including the context information from the first AMF entity.

Dependencies are inferred from the claim text.