Dual connectivity is a foundational feature of current 5G NR Non-Standalone (NSA) networks, allowing various ways for LTE and 5G base stations and devices to connect, while using the LTE core. As operators start to move towards 5G Standalone, and the 5G core, they will have new dual connectivity challenges. Since it will be many years before most operators turn off 4G, there will be continuing work on the most efficient ways for the two networks to interoperate. And there will be other issues related to 5G’s wide choice of spectrum bands, including the introduction of millimeter wave frequencies into mainstream multiband macro networks. Qualcomm and its arch-rival in smartphone chips, MediaTek, were both active in dual connectivity trials for…