Common Public Radio Interface

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Press releases

Industry leaders launch new specification for 3G radio base stations (CPRI)

Date: Tuesday, September 30 2003
Ericsson, Huawei, NEC, Nortel Networks and Siemens - the companies co-operating in the CPRI (Common Public Radio Interface) industry initiative - today announced the open publication of the specification for the key internal interface in the radio base station. The CPRI specification for this key interface is the first in the industry.

The companies have, in 4 months, completed the CPRI specification ahead of schedule. The parties' individual objectives are to introduce products compatible to the specification on the market during 2004.

CPRI focuses on a 3G radio base station design that divides the radio base station into a radio and a control part, by specifying one new interface - the only and unique radio driven interconnect point within base stations. This will enable each part of the base station to better benefit from the technology evolution in its respective area.

The CPRI specification is openly available for the benefit of the wireless industry. Key benefits for Network Operators are the availability of wider radio base station portfolio with adaptability to all deployment scenarios with a shorter time to market. The CPRI specification enables base station manufacturers and component vendors to focus their research and development efforts on their core competencies. The CPRI specification allows for new architectures and is not limited by module dimensions or a pre-defined function split.

The CPRI initiative complements current activities in existing standardization bodies. The interface developed will be used for radio base station products in mobile systems.

Read more about CPRI at: www.cpri.info

CPRI cooperation is now working on the inclusion of new features like further line bitrates and GSM support, which will be published in new versions of the CPRI specification in due time.

October 04 2008
The CPRI Specification versions 4.0 (in addition to 1.4, 2.1, 3.0) is now available for download on the Specification section of this homepage. The new 4.0 release extend the specification to encompass the developments for LTE (Long Term Evolution). A variety of CPRI products have been made available to the market by the individual CPRI Parties.

March 06 2007
CPRI specifications version 1.4, 2.1, and 3.0 are now available for download. Version 3.0 contains the addition of WiMAX, an increase in the line bit rate and the inclusion of change requests. Version 1.4 and 2.1 is unchanged.

August 29 2006
CPRI specifications version 1.4 and 2.1 are now available for download. Version 1.4 contains editorial and corrective changes from version 1.3. Version 2.1 contains editorial and corrective changes from version 2.0.

October 15 2004
CPRI specifications version 1.3 and 2.0 are now available for download. Version 1.3 contains editorial and corrective changes from version 1.2. Version 2.0 contains support for networking.