4G and 5G RAN Architecture, CPRI and eCPRI

This video has information about 4G and 5G RAN Architecture which includes CPRI, eCPRI, REC, RE, BBU and RRU/RRH.

In telecommunications, Long-Term Evolution is a standard for wireless broadband communication for mobile devices and data terminals, based on the GSM/EDGE and UMTS/HSPA technologies. It increases the capacity and speed using a different radio interface together with core network improvements.

5G is the fifth generation technology standard for broadband cellular networks, which cellular phone companies began deploying worldwide in 2019, and is the planned successor to the 4G networks which provide connectivity to most current cellphones.
The Common Public Radio Interface standard defines an interface between Radio Equipment Control and Radio Equipment. Oftentimes, CPRI links are used to carry data between cell sites and base stations.

Enhanced CPRI (eCPRI) is a way of splitting up the baseband functions to reduce traffic strain on the fiber. Currently telcos use CPRI interface as fronthaul connection in 4G. The connection between the technology is what we know as 'fronthaul'. eCPRI will be used to support 5G by enabling increased efficiency.

A remote radio head, also called a remote radio unit in wireless networks, is a remote radio transceiver that connects to an operator radio control panel via electrical or wireless interface. When used to describe aircraft radio cockpit radio systems, the control panel is often called the radio head.

A baseband unit (BBU) is a device that interprets baseband frequencies in telecom systems including computer networks, the internet, phone networks and radio broadcasting systems. Mechanical engineers and telecom professionals use BBU devices to improve the connection between communication equipment.


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