The base station can be divided into two modules: the RRU for transmitting signals and the BBU for processing signals. Here's a breakdown of each: The central processing unit in a base station. Usually. Difference Between AAU, RRU, and BBU AAU, RRU, and BBU are key components in a telecom network, particularly in modern wireless communication systems like 4G and 5G. Handles baseband signal processing. Optical modules used in Remote Radio Units (RRUs) for CPRI applications are required to support industrial temperature ranges, primarily because RRUs operate in diverse outdoor environments with extreme temperature variations. Generally, the BBU and RRU are operated separately, the BBU is placed in the engine room and the RRU is placed on the tower, and the equipment connecting the BBU and RRU are optical. These modules are installed between the BBU and RRU, converting high-speed electrical signals into optical signals for transmission via fiber, and back to electrical signals at the destination. This process ensures stable signal transmission over long distances and in complex environments.
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