The advancement of mobile communication technology has facilitated communication among mobile users. With the development of communication from 4G to 5G, download speeds have become faster and network connections have become more stable. So, compared to 4G base stations, what are the particular advantages of 5G base stations?
In fact, the base station mentioned above is part of the wireless access network.
A 4G base station usually consists of a BBU (Building Baseband Unit), an RRU (Remote Radio Unit), a charger and an antenna.
In 5G networks, the access network is no longer made up of BBUs, RRUs and antennas. It is made up of three functional entities: CU (Centralized Unit), DU (Distribute Unit) and AAU (Active Antenna Unit).
The CU is the non-real-time part of the original BBU, responsible for processing non-real-time protocols and services.
The DU is responsible for managing physical layer protocols and real-time services.
The AAU is part of the BBU physical layer processing function combined with the RRU and the passive antenna.
