This hands-on workshop is designed for the experienced telecommunications professional involved in network deployments, field data collection, handset testing, and/or overall system performance engineering. This individual should desire understanding 1xEV-DO field related issues and the various methodologies used to identify and rectify these problems.

Troubleshooting and performance optimization techniques for cdma2000 1X voice and data networks are designed specifically for low-speed circuit switched networks. The troubleshooting and performance optimization techniques for 1xEV-DO differ greatly from 1X networks in terms of parameters, capacity constraints, call flows, issue identification, handoffs, and device behavior. With the launch of 1xEV-DO Rev. A and support for Quality of Service, the techniques and skills set needed for identification of performance issues becomes even more complex. A solid understanding of 1xEV-DO troubleshooting and optimization techniques will enable timely resolution of capacity and performance related issues resulting from increased packet data usage.

This hands-on workshop provides an in-depth understanding into the various techniques and methodologies for troubleshooting 1xEV-DO Rel. 0 and Rev. A issues as well as optimizing system performance. The primary focus is to bridge the gap between the theoretical understanding of 1xEV-DO and the real world field issues and performance expectations in a deployed network. The workshop begins by exploring the significance of the overhead messaging in 1xEV-DO and its impact to performance. Then 1xEV-DO Session Negotiation and Multiple Personalities are explored through lecture and a log file dissection.  The RF Optimization Techniques and Connection Drops sections explore various ways to identify RF related performance issues as well as identification of 1xEV­DO connection drops and their reasons. The Forward and Reverse Link performance sections dive into great detail to answer the fundamental question, “Why is this device not getting high throughputs?”, and the methodology for troubleshooting such issues. The next section explores the various behaviors of the AT, performance expectations and how to identify the behavior and performance through data collection and logs. The Inter-technology Handoffs section identifies the handoff triggers and explores a variety of call flows depicting these inter-technology handoffs. The course concludes with an in-depth theoretical and practical look into Quality of Service in 1xEV-DO Rev. A through a log file walkthrough.

The hands-on workshop heavily incorporates real-time data collection, post-processing, and analysis of logs collected on a deployed 1xEV-DO system as well as mixing theoretical lecture based material with real-life field issues.

After completion of this hands-on workshop, the student will be able to:

•  Explain and demonstrate 1xEV-DO Rel 0 and Rev A Troubleshooting and Optimization techniques.
• Explain and demonstrate 1xEV-DO RF optimization techniques.
• Describe the Rev A and Rel 0 Parameters and discuss their impact on network performance.
• Describe Forward Link Performance, Reverse Link Performance, QoS Call Processing, and Connection Setup test cases and discuss optimization techniques.
• Explain Rel 0 KPI Measurements.
• Explain Rev A QOS KPI measurement techniques.
• Describe AT modes of operation.
• Collect and analyze real-time data using logging tools (e.g., QXDM).
• Post-process and analyze data using tools (e.g., QCAT, Ethereal, Windcatcher).
• Comprehensively walk-through 1xEV-DO Rev. A logs.

A combination of instructor lecture, student books, and hands-on troubleshooting and analysis using field data and logs.