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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 and 
The purpose of CPRI is to allow replacement of a
CPRI Homepage
Radio technology
base stations
Base station (or base radio station) is – according to the International Telecommunication Union's (ITU) Radio Regulations (RR) – a " land station in the land mobile service."
The term is used in the context of mobile telephony, wireless ...
.
The purpose of CPRI is to allow replacement of a copper
Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkis ...
or coax cable connection between a radio transceiver (used example for mobile-telephone communication and typically located in a tower) and a base station (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
Fiber or fibre (from la, fibra, links=no) is a natural or artificial substance that is significantly longer than it is wide. Fibers are often used in the manufacture of other materials. The strongest engineering materials often incorpora ...
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 transceiver device called Small form-factor pluggable transceiver
Small Form-factor Pluggable connected to a pair of fiber-optic cables
Small Form-factor Pluggable (SFP) is a compact, hot-pluggable network interface module format used for both telecommunication and data communications applications. An SF ...
.
The companies working to define the specification include Ericsson
AB, Huawei Technologies Co. Ltd, NEC Corporation and Nokia
Nokia Corporation (natively Nokia Oyj, referred to as Nokia) is a Finnish multinational telecommunications, information technology, and consumer electronics corporation, established in 1865. Nokia's main headquarters are in Espoo, Finland, i ...
.
See also
* OBSAI *Remote Radio Head
A remote radio head (RRH), also called a remote radio unit (RRU) 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 ...
References
{{ReflistExternal links
CPRI Homepage
Radio technology