UK regulator Ofcom has published updated advice to the Government on airwaves that be used to improve mobile broadband connectivity for rail passengers.
This update outlines the best spectrum options to meet rising demand for on-board data access by providing track-to-train connections through backhaul for Wi-Fi, or mobile small cells on trains. Ofcom recommends the 66-71 GHz and 39-40 GHz bands as the best options for providing these connections. Ofcom is also examining future plans for the 26 GHz band, and will take any demand to use this band for trackside services into account when developing a future licensing strategy.