Pérez Leal, RaquelVelez, Fernando J.Campos, Luis MiguelGarcía Armada, Ana2020-07-132020-07-132020-07-22http://hdl.handle.net/10400.6/10356This paper presents a summary of the main research directions being followed in TeamUp5G European Training Network, teaming up a new generation of researchers and entrepreneurs ready to address complex engineering problems and innovation to work both at university and industry in the 5G field. This project is focused on new radio access network (RAN) techniques for 5G, considering ultra-dense mobile networks as a key ingredient of the actual mobile networks and their evolution. Research covers a wide spread of topics from physical layer and medium access control to applications, looking at spectrum sharing and energy efficiency as important features.engSmall CellsEnergy awarenessSpectrum managementInterference management5G HetnetsIoTMassive MIMOMillimeter wavesVisible light communicationpreprint