H.2 Procedure of NSI and NSSI performance assurance

28.5503GPPManagement and orchestrationPerformance assuranceRelease 18TS

This Figure H.2-1 illustrates the procedure of performance assurance for NSI(s) or NSSI(s).

Figure H.2-1: Example of procedure for NSI and NSSI performance assurance

1. The authorized consumer requests NSMS_Producer to allocate a new NSI. NSMS_Producer consumes provisioning services provided by NSSMS_Producer to create the NSI. After NSI allocation, the NSMS_Producer and NSSMS_Producer perform NSI and NSSI performance supervision.

2. The NSMS_Producer or NSSMS_Producer may get slice QoE analytics provided by NWDAF.

3. The NSMS_Producer or NSSMS_Producer checks whether the performance requirements can be met by NSI or NSSI by utilizing the end to end KPIs defined in TS 28.554 [21], performance measurements defined in TS 28.552[2] and slice QoE analytics provided by NWDAF in 3GPP TS 23.288 [22].

4a. If the performance requirements of NSI cannot be met, the NSMS_Producer triggers the NSI modification procedure. NSMS_Producer modifies the capacity of the network slice, or modifies the network slice configuration to guarantee the performance requirements.

4b. If the performance requirements of NSSI cannot be met, the NSSMS_Producer of CN modifies virtualized resources and the configuration of 5GC NFs to guarantee the performance requirements. NSSMS_Producer of AN reconfigures RRMPolicy to optimize performance.

Annex I (normative):
GPB schema for performance data stream units