The Citizens Broadband Radio Service (CBRS) is a wireless communication service in the United States that operates in the 3.5 GHz band. It was established to enable more efficient use of the radio spectrum by allowing multiple users to share the same frequency. This service is particularly beneficial for small businesses and local communities, as it provides access to high-speed internet and mobile services without the need for extensive infrastructure. CBRS uses a three-tiered access model, which includes incumbent users, priority access licensees, and general authorized access. This structure ensures that existing users, such as military radar systems, are protected while allowing new users to access the spectrum. The goal of CBRS is to promote innovation and improve connectivity across various sectors.