OAI 5G Core

• AMF
  • Access and Mobility Management Function [1]
    • Interface
      • N1 [2]
      • N2 [3]
      • N8
      • N11 [4]
      • N12
      • N22
      • SBI [8]
    • Protocols
      • NAS [5]
      • NGAP [6]
      • SCTP [7]
      • ITTI Message [9]
    • Call Flow
      • Registration and Deregistration
      • Authentication and Authorization
      • User Plane Setup
      • Context Setup and Session Modification
      • Handover Procedure
• AUSF
  • Authentication Server Function [1]
    • Authentication Procedure
      • Sending Temporary Identifier
      • Retrieving Authentication Parameters
      • Deriving Keys
• SMF
  • Session Management Function [1]
    • Interface
      • N1 [6]
      • N2 [7]
      • N4 [8]
      • N11
      • N10
      • SBI [9]
    • Protocols
      • NAS [2]
      • NGAP [3]
      • PFCP [4]
      • UDP [5]
      • ITTI Message [10]
    • Call Flow
      • Session Establishment
      • Session Modification
      • Session Release
      • Handover Handling
• UDM & UDR
  • Unified Data Management and Unified Data Repository
    • UDM [1]
    • UDR [2]
    • Data Management
      • Register Context
      • Deregistration of functions