The Taiwanese regulator, the NCC, has highlighted an issue which is increasingly overshadowing many countries’ plans for early 5G deployment – the uncertain business case. Most operators which expect to be in the first wave of 5G roll-out are focusing on enhancing their existing mobile broadband services, and are building their networks in a traditional way, focusing mainly on the same macro network grid of sites and backhaul, and on sub-6 GHz spectrum. However, CEOs of operators from BT in the UK to China Mobile have insisted that, in the second phase of deployment, 5G investment will need to be justified by new services and revenue streams – and these remain uncertain, especially in the Internet of Things. The NCC…