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5G targets are set very high, not only in terms of data rates up to 20 Gbps and capacity increase by 1000 times but also in terms of providing a flexible platform for the new services like massive Internet of Things and critical communication. The high targets of 5G networks require a number of new technology components. This chapter presents an overview of the main new technologies in 5G compared to Long Term Evolution. It is divided into spectrum utilization, beamforming, physical layer and protocols, network slicing, dual connectivity, and new architecture with radio cloud and edge computing. 5G radio design requires enhanced flexibility in the physical layer and in the protocols. Network slicing offers a solution to meet the requirements of all use cases in a common network infrastructure. 5G is the first radio solution which is closely integrated with the legacy radio network for a …