When Francesco Grilli and his peers were working on the 4G standard, they had a few ideas as to what the popular use cases might be. Video calls over the internet, perhaps, or rich messaging content, they thought. "In the end, none of that really happened on a larger scale," Grilli said. "Other stuff we were thinking about didn't materialize." As vice president of product management at Qualcomm Technologies, Grilli's job largely revolves around imagining how people would use advanced networks.