It converts digital signals received from the BBU (via fiber optic cables) into analog RF signals for transmission.
The effectiveness of RRU-based systems (often referred to as "RRU work") hinges on the physical separation of the radio hardware from the baseband processing unit. dedose007 rrus work
For cybersecurity professionals and digital forensic analysts, understanding this specific body of work is important for several reasons: It converts digital signals received from the BBU