There may be very few concrete definitions of 6G as yet, but it is increasingly clear what the next generation of cellular network standards will need to enable. 6G may prove to be just a natural evolution of 5G, or something quite different – potentially defined by the Internet industry as much as the 3GPP. Either way, its existence will only be justified if it can support cost-effective, sustainable and rich connectivity, that will turn the latest emerging concepts of the Internet world into reality. Increasingly, then, we are seeing academic institutions, large hi-tech companies, and even whole national programs driving R&D in several related areas in a joined-up way, rather than in siloes. Japan is a good example. It…