How to build 5G networks in the US

The higher speeds of fifth-generation (5G) wireless networks will enable connected cars, telemedicine, and the broader internet of things. Preparing for next-generation networks and their many applications will require upgrading existing wired infrastructure and freeing up wireless spectrum. To discuss the path to 5G for the US, the Center for Technology Innovation hosted a conversation at the Brookings Institution on June 26 between CTI Fellow Nicol Turner-Lee and Commissioner Brendan Carr of the Federal Communications Commission. Commissioner Carr emphasized that 5G networks will have both wired and wireless components. To achieve higher speeds, 5G networks will take advantage of high-band spectrum that travels over shorter distances. Unlike tall cell towers that cover wide areas, small cells attached to buildings and utility poles will carry 5G signal to a city block. The FCC is updating siting regulations allow placement of many small cells in densely-populated areas. Each installed small cell will also need new fiber-optic cable connections, which must satisfy local regulations for installation. Eventually, 5G signal will also travel over mid- and low-band frequencies, and the FCC is preparing to make wireless spectrum available for use across frequency bands.