5.7.11 QoS Sustainability Analytics

29.5523GPP5G SystemNetwork Data Analytics signalling flowsRelease 17Stage 3TS

This procedure is used by the NWDAF service consumer (maybe an NF, e.g. AF) to obtain the QoS Sustainability analtics which are calculated by the NWDAF based on the information collected from the OAM.

Figure 5.7.11-1: Procedure for QoS Sustainability Analytics

1a. In order to obtain the QoS sustainability analytics, the NWDAF service consumer may invoke Nnwdaf_AnalyticsInfo_Request service operation as described in clause 5.2.3.1, the requested event is sent to "QOS_SUSTAINABILITY" with the supported feature "QoSSustainability".

1b-1c. In order to obtain the QoS sustainability analytics, the NWDAF service consumer may invoke Nnwdaf_EventsSubscription_Subscribe service operation as described in clause 5.2.2.1, the subscribed event is set to "QOS_SUSTAINABILITY" with the supported feature "QoSSustainability".

2. The NWDAF may invoke "Data collection service" to the OAM to get the RAN UE Throughput in clause 6.3.6 of 3GPP TS 28.554 [30] and/or QoS flow Retainability information as described in clause 6.5.1 of 3GPP TS 28.554 [30].

3. The NWDAF calculates the QoS sustainability analytics based on the data collected from OAM.

4a. If step 1a is performed, the NWDAF responds to the Nnwdaf_AnalyticsInfo_Request service operation as described in clause 5.2.3.1.

4b-4c. If step 1b and step 1c are performed, the NWDAF invokes Nnwdaf_EventsSusbcription_Notify service operation as described in clause 5.2.2.1.

5. The same as step 2.

6. The same as step 3.

7a-7b. The same as step 4b and step 4c.

NOTE: For details of Nnwdaf_EventsSubscription_Subscribe/Unsubscribe/Notify or Nnwdaf_AnalyticsInfo_Request service operations refer to 3GPP TS 29.520 [5].