From the course: 4G LTE: Architecture, Protocols, Call Flows, KPIs, Optimization, Performance Analysis

Unlock this course with a free trial

Join today to access over 25,300 courses taught by industry experts.

Low-throughput troubleshooting methodology

Low-throughput troubleshooting methodology

From the course: 4G LTE: Architecture, Protocols, Call Flows, KPIs, Optimization, Performance Analysis

Start my 1-month free trial Buy for my team

Low-throughput troubleshooting methodology

“

Finding the cause of slow data speeds in the network isn't about one magic number, it is a full forensic investigation tracing the data's journey from the internet core all the way to the user's phone. Our investigation starts at the AIR interface. First, we analyze the RF and radio conditions. We use drive test logs and the channel quality index distribution to map the signal strength and quality across the geography. We also dig into the OSS counters for metrics like low RSRP or high block error rate or maybe handover failures especially inter-RAD. These all points to a weak or unstable coverage as the primary suspect. Second, we audit the cell site configuration and features. Sometimes the network has the capability, but it might be switched off. We must verify that key throughput features such as 64 QAM, 256 QAM are enabled and active. We also can look into the MyMood transmission modes that it should be correctly set in the network and by looking at the rank indicator parameters…

Contents