Objectives
After completing this course, the student will be able to:
■ List the 5G NSA RAN KPIs that impacts network performance
■ Identify the factors and events that impact 5G NSA RAN KPIs
■ Analyze UE logs to derive performance issues related to Setup, Radio link, Throughput, Handover
■ Understand the failure signatures that result into poor performance
■ Analyze various scenarios of poor performance and present the findings
Outline
1. RF Performance Essentials
1.1 5G (NSA) RAN KPIs
1.2 Accessibility, Retainability, Integrity, Handovers
1.3 Mapping Call flow events and RAN KPIs
1.4 Split bearer and PDCP Aggregation
Exercise: UE log analysis
2. Accessibility Analysis
2.1 SgNB Cell add success
2.2 RACH success
2.3 Call flow and event triggers
2.4 Impact of coverage of low, mid, high band for 5G
Exercise: Accessibility problem analysis
Exercise: Student Exercises
3. Retainability Analysis
3.1 UE detected radio link failures
3.2 eNB and gNB detected radio link failures
3.3 Call flow and event triggers
3.4 Beam management
Exercise: Retainability problem analysis
Exercise: Student Exercises
4. Throughput and Latency Analysis
4.1 UE and cell throughput and latency analysis
4.2 Role of Dynamic Spectrum Sharing (DSS)
4.3 Split bearer and PDCP Aggregation
4.4 UL on 5G NR
4.5 Call flow and event triggers
Exercise: Throughput problem analysis
Exercise: Student Exercises
5. Handover Analysis
5.1 Intra-CU and Inter-CU Handovers
5.2 Stages of Handover
Exercise: Handover problem analysis
Exercise: Student Exercises
Student Presentations
Final Assessment