With the Small Cells World Summit (SCWS) taking place in London this week, one of the themes will be the diversifying range of spectrum bands which can be harnessed for a dense network. Additional licensed bands are being auctioned or refarmed; operators are starting to think about millimeter wave spectrum for 5G; and LTE and 5G New Radio are being extended into unlicensed and shared frequencies like 5 GHz and 3.5 GHz. Two small cell vendors are focusing on these issues in their London announcements. IP.access has expanded the spectrum its cloud-based Viper2020 platform, which is optimized for neutral host deployments, will support. Cells managed by Viper2020 will now include those in the 600 MHz, 700 MHz and 3.5 GHz…