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  • Course Length:
  • 1 Day Instructor Led

The LTE air interface leverages several advanced radio technologies to deliver higher data rates and higher capacity to mobile subscribers, including OFDM and MIMO. The unique characteristics of these techniques require careful planning and optimization in order to maximize the overall coverage, capacity and performance of the LTE RAN. This course focuses on the challenges that RAN engineers typically face, both during initial deployment and in later growth phases. This course provides a high-level overview of LTE performance-related issues, including low cell-edge throughput, low downlink and uplink cell throughput, poor MIMO performance, RRC connection setup failures and drops, UE context drops, and bearer setup and bearer drops.

This course is intended for those in leadership functions as well as those who need to understand and consider RF-related issues in LTE.

After completing this course, the participants will be able to:
• Define the LTE RAN KPIs and map them to the corresponding LTE RAN operations
• Associate important LTE signaling events with success and failure operational counters
• Identify the RF measurements that are key to coverage and interference and discuss how they impact the accessibility KPIs
• Identify events that lead to context and bearer drops
• Describe downlink and uplink traffic operations and discuss the importance of CQI for improved throughput
• Calculate Resource Block utilization and its effect on cell capacity
• Define the KPIs for handover and interworking performance

1.1. LTE RAN KPIs overview
1.2. LTE signaling to KPI mapping

2. Coverage and Accessibility
2.1. Defining “right” coverage
2.2. RSRP, RSRQ and SINR measurements
2.3. RRC connection and context setup performance

3. Drops and Retainability
3.1. Radio link failures
3.2. UE context and E-RAB drop KPIs

4. Throughput and Capacity
4.1. DL and UL operations
4.2. CQI and MCS/MIMO selection
4.3. RB utilization and capacity planning
4.4. Interference Coordination (ICIC)

5. Interworking and Handovers
5.1. Intra- and inter-frequency handovers
5.2. Idle mode IRAT selection
5.3. Automatic Neighbor Relation (ANR)

Suggested Prerequisites