Beyond 5G & Technologies: A Cross-Domain Vision

Abstract

5G deployment is on-going and many challenges are arising. New Radio (NR) Frequency Range 2 (FR2) in the millimeter (mmW) frequency domain starts being considered. Wideband over extended spectrum is targeted, enlightening broadband capacity and even much higher throughput than current views. In addition, spatial coverage based on quite small short wavelength antenna-array beam-forming offers new use case scenarii. As a consequence, the induced bands to support are increasing as well as the complexity of Front-End Module (FEM). But for autonomy and economical attraction, massive deployment can only happen with energy efficiency improvement. This paper will propose optimization paths for mm W system architectures, and their actual implementation, PHY considerations, and associated technology advances, for an holistic approach of the entire communication chain, and will highlight some promising trends for the development of 5G and beyond transceivers.