APPARATUS AND METHOD FOR MOBILITY AND SESSION MANAGEMENT IN DIFFERENT PLMN(PUBLIC LAND MOBILE NETWORK) THROUGH NON-ACCESS STRATUM PROTOCOL PROCESSING IN 5G ENVIRONMENT

摘要

The present disclosure relates to a communication technique and a system for fusing a 5G communication system with IoT technology to support a higher data rate after a 4G system. This disclosure is based on 5G communication technology and IoT-related technology, and intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security and safety related services, etc. ) Can be applied. In the present invention, in a state in which multiple access PDU sessions for performing communication in 3GPP and non 3GPP for the terminal are established, the movement of the terminal, or further, in a roaming environment, the mobility and session of the terminal through a NAS message. Disclosed is a method and an apparatus for managing them.