Dr. Changsoon Choi is Vice President of Deutsche Telekom, Germany, where he is leading NW service differentiation and convergence in Group Technology, representatively 5G network slicing, QoS, FMC, Multipath, millimeter-wave so on. Prior to the current responsibilities in Deutsche Telekom, he used to be leading world 1st 5G commercialization and developing 5G E2E infrastructure in SK Telecom. His industrial experience also includes affiliations with NTT DOCOMO communication laboratories Europe GmbH, Germany, with Leibniz Institute Innovation for High Performance Microelectronics GmbH, Germany, and with the National Institute of Information and Communications Technologies (NICT), Japan.