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LTE RF Optimization: Part 3 - Mobility and Inter-RAT
- Course Length:
- 1.5 Days Instructor Led
This workshop provides insights into the symptoms and possible causes of field performance issues in LTE radio networks using UE logs. RF measurements related to coverage and interference are discussed to analyze coverage holes and overlapping regions. Students analyze LTE signaling messages through UE logs and map them to success and failure events. Students perform root cause analysis and gain an in-depth understanding of these signaling events to network performance. LTE RF optimization areas such as Intra-LTE and IRAT handover operation. This knowledge transfer is obtained through hands-on experience using UE based diagnostic tools and scanner tools.
Required Equipment: PC laptop
Special Note: This is an advanced level course. Please DO NOT register for this course if you are not very familiar with LTE RAN Signaling.
This workshop is primarily intended for RF and systems performance engineers involved in LTE design, performance, and optimization.
After completing this workshop, the student will be able to:
• Define the LTE RF KPIs and map them to RAN counters
• Identify various LTE signaling events that map to success and failure operational counters
• Identify the RF measurements that are key to coverage and interference and analyze them through post processing tools
• Analyze UE logs for root cause analysis of successful and failure events and map these events to operational counters and corresponding KPIs
Intra LTE handovers and
1. Workshop Overview
2. Intra-LTE Handover Analysis
2.1. Intra and Inter-frequency handover events and trigger parameters
2.2. Handover KPIs/counters
2.3. Handover execution: success and failure scenario
2.5. Review exercises
3. Inter-RAT Handover
3.1. Idle mode system reselection
3.2. Inter-RAT handover events and related trigger parameters
3.3. Inter-RAT handover message flow and related KPIs/generic counters
3.4. Handover execution: success and failure scenario
3.6. Review exercises
4. Idle Mode Performance
4.1. Bearer inactivity timer
4.2. Paging procedure optimization
4.3. TAU procedure optimization
4.5. Review exercises