Stefan Parkvall is a Principal Researcher at Ericsson Research working with 5G and future radio access. He is one of the key persons in the development of HSPA, LTE and NR radio access and has been deeply involved in 3GPP standardization for many years. Dr Parkvall is a fellow of the IEEE and served as an IEEE Distinguished lecturer 2011-2012. He is co-author of the popular books "3G Evolution – HSPA and LTE for Mobile Broadband", "HSPA evolution – the Fundamentals for Mobile Broadband", "4G – LTE/LTE-Advanced for Mobile Broadband", "4G, LTE Advanced Pro and the Road to 5G", and "5G NR – The Next Generation Wireless Access". Dr. Parkvall has more than 1000 patents in the area of mobile communication. In 2005, he received the Ericsson "Inventor of the Year" award, in 2009 the Swedish government's Major Technical Award for contributions to the success of HSPA, and in 2014 he and Ericsson colleagues were among the finalists for the European Inventor Award for their contributions to LTE. Dr Parkvall holds a Ph.D. in electrical engineering from the Royal Institute of Technology (KTH) in Stockholm, Sweden. Previous positions include assistant professor in communication theory at KTH, and visiting researcher at University of California, San Diego, USA.