4 OCNWDAF Interfaces

This chapter describes the OCNWDAF interfaces, which are used by consumer NFs and OCNWDAF for subscription data and analytics collection.

4.1 OCNWDAF Data Collection from NFs

The OCNWDAF collects data from 5G NFs (the OCNWDAF and the NF providing the data belong to the same PLMN). The OCNWDAF uses the NnF interface for data collection. The figure below depicts the interface:

Figure 4-1 NnF Interface


NnF Interface

The OCNWDAF uses the NnF interface to:

  • Request a subscription for data delivery from a particular context.
  • Cancel a subscription for data delivery from a particular context.
  • Request a specific data report for a particular context.

4.2 Analytics Collection by a Network Function

A 5G NF can request network analytics information from the OCNWDAF through a Nnwdaf interface, where the OCNWDAF and the NF belong to the same PLMN. The diagram below depicts the Nnwdaf interface:

Figure 4-2 Nnwdaf Interface


Nnwdaf Interface

The Nnwdaf interface is used to:

  • Request subscription to network analytics delivery for a particular context.
  • Cancel subscription to network analytics delivery for a particular context.
  • Request a specific report of network analytics for a particular context.