Carrier aggregation has allowed operators to tap into noncontiguous blocks of licensed spectrum, as well as unlicensed frequencies like the 5 GHz band, to create bigger data bites and significantly improve LTE coverage. 5G networks, which were designed from the ground up to support all manner of spectrum aggregation and sharing, are today tightly linked to LTE networks and a technology called dual connectivity is allowing operators to supercharge non-standalone 5G.
