SRK 2020

ABSTRACT
5G technology is driving major changes — from highly flexible radio access network (RAN) architecture and 3D beamforming active antennas, to software-defined network components — with stringent timing and latency requirements. The combination of new infrastructure features and functions, such as millimeter wave (mm-Wave) utilization and massive MIMO, provides a pathway to incredible performance enhancements. Yet these expected enhancements will rely on multiple elements performing seamlessly in tandem, introducing much greater complexity than previous generations. For the past 2 years, VIAVI Solutions has been actively involved with the first commercial deployments of 5G technology in mm-Wave frequencies and sub-6GHz bands. This presentation will include an introduction to the main technical features of 5G NR signals that are relevant to validate the overall performance of these new networks in the field, along with an overview of the new types of tools available (such as a new generation of Real-Time Spectrum Analyzers) and recommended test-practices for validation of new 5G cell sites including conformance testing, signal characterization and synchronization plus 5G NR carrier and beam analysis in frequency and time domains. Several examples of identified real-life issues will be shown, based on tests conducted through numerous trials, proof of concepts and early commercial launches in different regions in the world.