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

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LTE ERAB drop analysis using OSS reports

LTE ERAB drop analysis using OSS reports

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

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LTE ERAB drop analysis using OSS reports

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So we talked about the retainability and the control plane retainability in terms of RRC success rate earlier. In this session, we are going to look into the user plane retainability by checking the EREB success rate. Now, what does a 98.56% success rate really mean? If If a network handles 8.3 million data sessions, that small 1.44% failure rate still represents over 119,000 frustrated users. What happened in those cases? To fix those problems, we need to first have to know where to look into the reports and how to start. We are analyzing a real-world retainability report in this session and will learn to interpret a high level success rate and break down the abnormal release category into the main investigative areas like radio, hardware or transport. Now let's first understand the abnormal release category which needs to be broken down. A report here shows the complete network level success rate. Here we are talking about the user plane when the user is connected having a data…

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