Mattias Frenne is currently a Principal Researcher in Multi-antenna Standardization in Ericsson. He holds an M.Sc. (1996) and a Ph.D. (2002) in engineering physics and signal processing respectively, both from Uppsala University, Sweden. Mattias has contributed to the physical layer concept development for both LTE and NR and is acting as a 3GPP standardization delegate in 3GPP RAN WG1 since 2005, mainly covering topics in the multi-antenna area. He was named Ericsson Inventor of the Year in 2016.