LTE Signalling, Troubleshooting and Performance Measurement describes the LTE signalling protocols and procedures for the third generation of mobile communications and beyond. It is one of the few books available to explain LTE signalling messages, procedures and measurements down to the bit and byte level, and all trace examples are taken from real lab and field trial traces. The book covers the crucial key performance indicators (KPI) to be measured during the field trials and the deployment phase of new LTE networks. A set of most common KPIs for LTE interfaces and procedures, including the radio interface procedures and radio quality, is outlined. It describes how statistic values can be aggregated and evaluated, and how the network can be optimized during the first stages of deployment, using dedicated case examples to enhance understanding.Written by an expert in the field of mobile communications, the book systematically describes the most recent LTE signalling procedures, explaining how to identify and troubleshoot abnormal network behavior and common failure causes as well as describing the normal signalling procedures. This is a unique feature of the book, allowing readers to understand the root cause analysis of problems related to signalling procedures.