1. Unified Data Management (UDM) User's Guide
  2. UDM Services
  3. UE Context Management (CM) Service

UE Context Management (CM) Service

UDM UE CM service:
  • Supports registration and de-registration procedures for the AMF/SMF/SMSF requesting for registering a UE for 3GPP access only
  • Supports retrieving and updating the registration information for 3GPP access for a subscriber for AMF/SMSF
  • Supports de-registration notification for AMF
    • Upon successful re-registration of a subscriber for a new AMF, UDM CM service sends an implicit de-registration notification to the old AMF.
    • This notification is sent to the old AMF "de-registration callback uri" by obtaining the earlier registration record from UDR

For more information, refer to UE Context Management (CM) Service User configuration parameters in UDM Installation Guide.