Ralf Kreher Livres

Focuses on providing an overview and reference to UMTS UTRAN and Core networks. This work describes the details of the standards, the network architecture, objectives and functions of the different interfaces and protocols.

This comprehensive reference on call procedures for 4G RAN and Core networks delves into LTE signaling, troubleshooting, and optimization. It covers essential topics such as performance measurement counters, radio quality, user plane quality, standards, architecture, and the functions of various interfaces. The initial section provides an overview of LTE/EPC network architecture, reference points, protocol stacks, information elements, and elementary procedures. Subsequent sections address advanced topics, focusing on LTE/EPC signaling and radio quality analysis. By supplementing 3GPP standards, the book offers a universal LTE/EPC protocol sequence, enhancing the reader's understanding of network issues. It details normal signaling procedures and guides readers in identifying and troubleshooting abnormal network behavior and common failure causes. The text enables readers to grasp the signaling procedures and parameters necessary for monitoring UMTS networks, offering firsthand insights from real LTE/EPC traces. This reference is particularly useful for test and measurement experts analyzing LTE/EPC signaling procedures and measurements at a detailed level. Additionally, it includes descriptions of LTE air interface monitoring scenarios and other advanced topics, serving as a successor to previous works on UMTS signaling and performance measurement.

UMTS Performance Measurement is a practical guide that explains how to identify and measure the main problems seen in today's UMTS live networks and will make performance measurement results gathered in the UTRAN environment understandable for the reader. It provides a fundamental background for daily work in the field or lab, covering a wide range of performance measurements that help to troubleshoot and optimize the UTRAN environment. The content goes far beyond what has been defined by international standard bodies like 3GPP and closes the gap between international standards and definitions of network equipment manufacturers (NEM) and network operators. The emphasis is on definition of Key Performance Indicators (KPIs) and measurements that are not described in 3GPP standard documents, such as throughput measurements and the success/failure analysis of all possible handover types. Providing a gateway into the world of UMTS-specific measurement scenarios and a general overview of what can be defined and measured at an in-depth technical level, this book will appeal to those involved in network operation, planning, configuration and deployment, as well as consulting and training companies, students, technical journalists and measurement equipment manufacturers.