Session Type Conflict Resolution at SMF

Under the following criteria there can be session type conflict resolution at SMF:

  • SMF tags a session as emergency, if the DNN is tagged to emergency or if a session gets created automatically.

  • SMF tags a session as IMS, when a Bearer/flow gets created with the QCI configured as IMS under the DNN profile.

  • SMF tags a session as WPS based on the ARP received from PCF.

When a session satisfies multiple conditions, a session type gets tagged based on the following criteria.

WPS > Emergency > IMS

SMF does not send any session type to the UPF. UPF maps the session to priority through configuration. For more information, see the UPF Configuration Guide.