  Although 5G (Fifth Generation) mobile technology is still in the rollout
phase, research and development of 6G (Sixth Generation) wireless have already
begun. This paper is an introduction to 6G wireless networks, covering the main
drivers for 6G, some of the expected use cases, some of the technical
challenges in 6G, example areas that will require research and new
technologies, the expected timeline for 6G development and rollout, and a list
of some important 6G initiatives world-wide. It was compiled as part of a
series of workshops about 6G held by Thinknet 6G and MUENCHNER KREIS in 2021.
