Small Cell Wireless Communication Facilities, also called "5G", are a type of wireless infrastructure. Existing wireless facilities are large antennas placed high above the ground that service a wide area (referred to as "macrocells"). The 5G antennae (also referred to as "small cells") provide spot coverage to a relatively small area - each small cell antenna services hundreds of feet whereas traditional macrocell sites cover square miles.
Because of the very limited coverage areas associated with small cells, many more antennae are necessary and need to be relatively closer to the ground (compared to macrocells) in close proximity to homes and businesses. The industry plans to install the vast majority of these antennae in public rights-of-way, affixed to existing pole infrastructure (street lights, traffic signals, and utility poles), or on new purpose-built small cell poles.
On September 26, 2018, the Federal Communications Commission (FCC) issued a Declaratory Ruling and a Third Report and Order, referred to as the "FCC Order". The FCC Order implements industry demands to remove barriers and accelerate the transition to 5G deployment, accelerating the United States' transition to 5G cellular networks.
The League of California Cities is currently challenging FCC ruling (link).