On-Site Technical Training for RF Engineers on Using Drive Testing Tools for Data Collection, Log File Analysis, and Reporting

1. Context

This initiative involved on-site technical training for RF engineers at mobile operators across multiple regions on using a particular RF drive testing tool for data collection, log file analysis, and reporting. The training provided hands-on expertise in:

• Conducting drive test data collection for 2G GSM and 3G UMTS networks.
• Processing and analysing log files to extract insights for network troubleshooting.
• Configuring and integrating test devices, including phones, RF scanners, and DSP-based PESQ tools for voice quality testing.
• Performing MOS (Mean Opinion Score) voice quality assessments, using PESQ-based comparisons of sent and received signals.
• Generating structured reports and providing recommendations based on log file analysis.

The training was delivered through two-day technical workshops, conducted at operator locations across multiple countries. Sessions combined theoretical knowledge with hands-on exercises, ensuring that engineers could apply learnings in real-world drive testing and network performance analysis.

2. Challenge

• Customised training requirements: Operators had varying priorities for training content. Some required a stronger focus on data collection, while others needed in-depth post-processing and troubleshooting techniques.
• Equipment logistics: Some operators used their own test equipment, while others required vendor-provided demo units, necessitating careful coordination to ensure that all devices (test phones, RF scanners, DSP-based PESQ tools) were available.
• Administrative complexities: Arranging travel logistics, visas, and vaccinations while preparing technical content within tight timeframes.

3. Approach

The training was structured into three key phases to ensure maximum effectiveness:

• Pre-Training Planning:
  • Conducted structured requirement gathering to understand operator-specific needs.
  • Customised training materials (slides, exercises, test sequences) to reflect regional network challenges.
  • Coordinated equipment logistics, determining whether to ship vendor demo units or use operator-provided devices.
• On-Site Training Execution:
  • Delivered interactive, hands-on workshops at operator offices or hotel venues.
  • Ensured correct configuration of test phones, RF scanners, DSP units, and laptops before training.
  • Provided a structured mix of lectures and live demonstrations, covering:
    • Drive test data collection workflows, including manual and automated testing.
    • Post-processing of log files, identifying key network KPIs such as signal strength, handovers, call drops, and interference issues.
    • Advanced network troubleshooting techniques, using detailed log file insights.
    • PESQ-based MOS scoring, leveraging DSP-based tools for voice quality comparisons.
    • Generating structured reports with recommendations for network improvements.
  • Trained 10–15 RF engineers per session, ensuring hands-on experience with drive testing and log file analysis.
• Post-Training Support:
  • Provided detailed training documentation and reference materials for ongoing self-learning.
  • Offered technical support post-training, assisting engineers with real-world testing challenges.
  • Ensured participants could independently conduct drive testing, process log files, and apply network troubleshooting techniques.

4. Role & Achievements

• Delivered highly practical, real-world training, enabling RF engineers to effectively conduct drive testing, log file analysis, and reporting.
• Customised training content based on operator-specific network challenges, ensuring high relevance and impact.
• Introduced structured methodologies for drive testing, PESQ-based voice quality assessment, and KPI analysis.
• Optimised operator data collection workflows, improving test efficiency and troubleshooting accuracy.
• Represented the technical expertise of the vendor, ensuring high client satisfaction with the training.

5. Results

• All training sessions were successfully completed, with participants gaining hands-on technical expertise in RF drive testing and data analysis.
• Provided comprehensive post-training materials, ensuring long-term value for RF engineers and operator teams.
• Strengthened the vendor’s reputation as a trusted provider of network testing solutions, reinforcing relationships with mobile operator clients.