LTE subscriptions crossed the one billion barrier in the last quarter of 2015, says the GSA, but revenues from 4G equipment have already peaked, according to IHS Technology. The GSA (Global mobile Suppliers Association) and Ovum said the final tally of LTE subscriptions at the end of last year was 1.068bn, or one in seven of all mobile connections worldwide. Its growth rate has now easily outpaced that of 3G, even though HSPA remains the main data workhorse for many operators, and some countries have not yet embarked on 4G. In the fourth quarter of 2015, LTE gained 156m new connections, 75% more than 3G. However, the LTE total will not overtake the 3G installed base until 2020, believes the…