Ericsson, Huawei and Nokia all spread their announcements and demonstrations over two weeks, holding physical or virtual preview events the week before for analysts and then topping up the news on their huge stands in Barcelona (or in Huawei’s case, five stands). ZTE was surprisingly buoyant given the challenges of last year and the threats of further sanctions in this one; while Samsung was throwing everything at its attempt to become a major network vendor in the 5G era, with its US deployments, its millimeter wave expertise and the uncertainties about Chinese suppliers all making this the best opportunity ever for it to take significant market share outside South Korea. Here we select a few significant highlights for the three…