COMMUNICATION SYSTEM AND COMMUNICATION CONTROL METHOD

• Main Authors: KATSUMATA Yuki, MINOKUCHI Atsushi, SAMA Malla Reddy, GUERZONI Riccardo, THAKOLSRI Srisakul
• Format: Patent
• Language: English; French; German
• Published: 16.06.2021
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

A communication system 1 includes a RAN 20 and a SMF 40. The SMF 40 includes: a table information storage unit 41 configured to store table information in which a specific area included in a communication area of the RAN 20 and a LADN 80 whose service provision range is the specific area are associated with each other; and an additional information notification unit 42 configured to notify, in a case of receiving a session establishment request to the LADN 80 associated with the specific area in the table information from UE 10 located in the specific area, a S-RAN 20A connected to the UE 10 of additional information indicating that the specific area is the service provision range of the LADN 80. The S-RAN 20A includes an additional information storage unit 21 configured to store the additional information given in notification from the additional information notification unit 42.