Qualcomm, a chip maker, has this week been promoting its expertise in supporting the 5G ecosystem that is emerging worldwide, led by South Korea, Japan and the US. Mobile 5G technology promises faster download speeds for cellphones, greater bandwidth and lower latency for networks. Qualcomm is saying it expects the first 5G devices to be introduced commercially around 2020 / 2021. That chimes with recent analysis and forecasts from our WDS (Devices) service, details of which can be viewed here.