Dr. Erol Hepsaydir received BSc and MSc degrees in electrical and electronics engineering from Middle East Technical University, Ankara, Turkey, in 1985 and 1987 respectively. He completed his PhD at University of Technology, Sydney in 2001. Currently, he is the Head of RAN and Devices Strategy at Three in the UK. His primary responsibilities are next generation telecommunication and wireless systems including 5G with particular interest on PHY/MAC layer and network architecture. He was appointed as Royal Academy of Engineering Visiting Professor at the University of Kent in United Kingdom where he lectures Digital Communications, Information Theory and Mobile Communications. He is currently focusing on mmWave 5G technology trial and deployment scenarios.