Content for  TS 23.288  Word version:  18.4.0

The NWDAF provides WLAN performance analytics to a service consumer NF. The analytics results are generated based on the data from other 5GC NFs and OAM. The analytics results, provided in the form of statistics or predictions, contain quality and performance of WLAN connection of UE according to UE location and SSID. The consumer can request either one-time or continuous reporting. The service consumer may be an NF (e.g. PCF, NEF or AF). If a service consumer is PCF, the WLAN performance analytics can be used to update WLANSP as defined in TS 23.503. If the service consumer is NEF or AF, the WLAN performance analytics per UE granularity can be used to select candidate members for an application layer operation. The consumer of these analytics may indicate in the request or subscription:

• Analytics ID = "WLAN performance";
• Target of Analytics Reporting: a single UE (SUPI), a group of UEs (an Internal Group ID), or any UE;
  • Analytics Filter Information:
  • Area of Interest (list of TA or Cells);
  • SSID(s);
  • BSSID(s); and
  • optional list of analytics subsets that are requested (see clause 6.11.3);
• An Analytics target period indicates the time period over which the statistics or prediction are requested, either in the past or in the future;
• Optionally, Temporal granularity size;
• Optional maximum number of objects;
• Preferred level of accuracy of the analytics;
• Preferred level of accuracy per analytics subset (see clause 6.11.3);
• Preferred order of results for the list of WLAN performance information:
  • ordering criterion: "time slot start", "number of UEs", "RSSI", "RTT" or "Traffic information"; and
  • order: ascending or descending; and
• In a subscription, the Notification Correlation Id and the Notification Target Address are included.

If the Target of Analytics Reporting is any UE, then the Analytics Filter should at least include Area of Interest or SSID(s) or BSSID(s).

For the purpose of generating WLAN performance analytics results, the NWDAF collects the data as listed in Table 6.11.2-1.

The NWDAF generates WLAN performance analytics. Depending on the Analytics Target Period, the output consists of statistics or predictions. The detailed information provided by the NWDAF is defined in Table 6.11.3-1 for statistics and Table 6.11.3-2 for predictions.