The RRH is connected to the Base band unit (BBU) via fibre optical cable which uses CPRI format signals. Optical cable is used because it has less loss and it is cheaper as compared to RF Coaxial cable, especially at the CPRI bit rates which can be 6Gbps up to 10Gbps or more. By replacing all or part of traditional RF coaxial feeder networks with optical fiber, FTTA Solutions significantly improve transmission. A Remote Radio Head (RRH) is a remote radio transceiver that connects to a radio base station unit through an electrical or wireless interface. This innovative solution includes Corning Cable Systems' RRDT, series of remote radio fiber optic cable assem-blies (RRCAs) and vertical. Fiber-to-the-Tower (FTTA) solutions are key to supporting the expansion of 4G, 5G, and beyond, by delivering high-speed fiber optic connections to cell towers. Hybrid fiber optic cables, which combine both fiber and copper elements, have become an increasingly popular choice for FTTA applications. The solution of DC remote power supply by hybrid optical and electrical cables can not only facilitate centralized construction. In addition to solving the. In a distributed base station architecture, the traditional macro station equipment have two distinct units based on their functions: the BBU and the RRU. The BBU centralizes the “baseband,” “transmission,” “main control,” “clock,” and other functions of the base station.
