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The Common Public Radio Interface (CPRI) standard defines an interface between Radio Equipment Control (REC) and Radio Equipment (RE). Oftentimes, CPRI links are used to carry data between cell sites/remote radio heads and base stations/baseband units.

The purpose of CPRI is to allow replacement of a copper or coax cable connection between a radio transceiver (used example for mobile-telephone communication and typically located in a tower) and a base station/baseband unit (typically located at the ground nearby), so the connection can be made to a remote and more convenient location. This connection (often referred to as the Fronthaul network) can be a fiber to an installation where multiple remote base stations may be served. This fiber supports both single and multi mode communication. The fiber end is connected with the Small Form-factor Pluggable (SFP) transceiver device.

The companies working to define the specification include Ericsson AB, Huawei Technologies Co. Ltd, NEC Corporation and Nokia.

See also

• Open Base Station Architecture Initiative (OBSAI)
• Remote radio head (RRH)

References

1. "CPRI Specification Overview and Download".
2. https://www.fiercewireless.com/tech/what-ecpri-and-why-it-important-for-5g-and-open-vran
3. https://www.fiercewireless.com/tech/what-ecpri-and-why-it-important-for-5g-and-open-vran
4. "Understanding the Basics of CPRI Fronthaul Technology (by EXFO)" (PDF).
5. "CPRI Cable Function and Details in Telecom". telecomkhabar.com. 15 June 2019. Archived from the original on 2020-01-27. Retrieved 2019-07-18.

External links

• CPRI Homepage
• CPRI specification (free) at CPRI homepage

• Radio technology