The protocol used on the Nc interface shall be a call control protocol supporting IP and ATM transports in a
bearer-independent manner for the ISDN service set, allowing the physical separation of the call control entities from
the bearer control entities.
Nnrf_NFManagement
Provides support for register, deregister and update service to NF, NF services.
Provide consumers with notifications of newly registered NF along with its NF services.
Nnrf_NFDiscovery
Enables one NF service consumer to discover a set of NF instances with specific
NF service or a target NF type. Also enables one NF service to discover a
specific NF service.
Nnwdaf_Events_Subscription
This service enables the NF service consumers to subscribe/unsubscribe for
network slice specific congestion events notification from the NWDAF.
Nnwdaf_Analytics_Info
This service enables the NF service consumers to request and get operator
specific analytics from NWDAF.
The Np reference point enables transport of RAN User Plane Congestion Information (RUCI) sent from the RCAF to
the PCRF for all or selected subscribers, depending on the operator's congestion mitigation policy.
The Np reference point supports the following functions:
Reporting of RUCI from the RCAF to the PCRF.
Sending, updating and removal of the reporting restrictions from the PCRF to the RCAF.
Npcf_AMPolicyControl
This PCF service provides Access Control,
network selection and Mobility Management
related policies, UE Route Selection Policies
to the NF consumers.
Npcf_SMPolicyControl
This PCF service provides session related
policies to the NF consumers
Npcf_PolicyAuthorization
This PCF service authorises an AF request
and creates policies as requested by the
authorised AF for the PDU Session to which
the AF session is bound to. This service
allows the NF consumer to
subscribe/unsubscribe to the notification of
Access Type and RAT type, PLMN identifier,
access network information, usage report...
