5B Analytics Data Repository Functional Description

23.2883GPPArchitecture enhancements for 5G System (5GS) to support network data analytics servicesRelease 18TS

5B.1 General

The ADRF offers services that enable a consumer to store and retrieve data and analytics. The analytics are produced by the NWDAF as described in clause 6.1 and data are collected as described in clause 6.2.

Data may be stored in the ADRF by:

– a consumer sending the ADRF an Nadrf_DataManagement_StorageRequest containing the data or analytics to be stored. The ADRF response provides a result indication.

– a consumer sending the ADRF an Nadrf_DataManagement_StorageSubscriptionRequest requesting that the ADRF subscribes to receive data or analytics for storage. The ADRF then subscribes to the NWDAF or DCCF for data or analytics, providing ADRF Notification Address (+Notification Correlation ID). Analytics or Data are subsequently provided as notifications using DCCF, NWDAF or MFAF services (Ndccf_DataManagement Nnwdaf_DataManagement or Nmfaf_3caDataManagement service).

Data may be retrieved from the ADRF by:

– a consumer sending an Nadrf_DataManagement_RetrievalRequest request to the ADRF to retrieve data or analytics for a Storage Transaction Identifier or a Fetch Instructions received from the ADRF in an Nadrf_DataManagement_RetrievalNotify. The ADRF determines the availability of the data or analytics in its repository and sends in the response to the consumer either the data or analytics.

– a consumer sending an Nadrf_DataManagement_RetrievalSubscribe request to the ADRF to retrieve data or analytics for a specified data or analytics collection time window. If the time window includes the future and the ADRF has subscribed to receive the data or analytics, subsequent notifications received by the ADRF are sent by the ADRF to the notification endpoint.

The ADRF determines the availability of the data or analytics and sends a success/failure indication in the response to the consumer. The ADRF then sends one or more notifications using an Nadrf_DataManagement_RetrievalNotify to the Notification Address (+Notification Correlation ID) specified by the consumer. The notification(s) either provide the data or analytics or provide instructions to the endpoint to fetch the data or analytics using an Nadrf_DataManagement_RetrievalRequest.

Data may be deleted from the ADRF by:

– a consumer sending an Nadrf_DataManagement_Delete request.

An ADRF may be configured to register the data it is collecting with a DCCF. The registration uses the Ndccf_ContextManagement service specified in clause 8.3.2. The registration may subsequently be used by the DCCF to obtain data from the ADRF as described in clause 6.2.6.3.6.