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

In this course, join instructor Rahul Kaundal as he guides you through the architecture, operation, and optimization of 4G LTE networks, outlining the technical foundation you need to work effectively in mobile telecommunications. Get started with the evolution of mobile standards and the role of 3GPP, then explore end-to-end LTE network architecture. Next, examine the air interface and physical layer, covering spectrum, frame structure, modulation, and OFDMA, then move into the LTE protocol stack including Layer 1 channels, Layer 2 data handling, and Layer 3 RRC signaling. Along the way, learn how radio procedures connect to core network nodes like the MME, SGW, and PGW. The course concludes with practical optimization techniques, including drive test analysis, KPI frameworks for accessibility, retainability, and mobility, and hands-on methods for improving coverage, throughput, and capacity.

Learning objectives
Explain the evolution of mobile networks, the role of standards bodies, and the end-to-end architecture of a 4G LTE network, including RAN, Transport, and Core components.
Analyze the LTE physical layer, including its frame structure, modulation, multiple access scheme (OFDMA), and the function of key downlink and uplink channels through practical simulations.
Map the LTE protocol stack data flow, detailing the functions of the RLC, MAC, and RRC layers, and connect radio procedures to core network functions and call flows.
Evaluate network performance using industry-standard KPIs for Accessibility, Mobility, and Retainability, and analyze real-world data from drive tests and network reports.
Execute optimization processes to solve coverage, capacity, and throughput challenges, applying methodologies for link budget calculation, root cause analysis, and radio resource management.