Common Public Radio Interface

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The Common Public Radio Interface (CPRI™) is an industry cooperation aimed at defining a publicly available specification for the key internal interface of radio base stations between the Radio Equipment Control (REC) and the Radio Equipment (RE). The Parties cooperating to define the CPRI Specification are Ericsson AB, Huawei Technologies Co., Ltd, NEC Corporation, Nortel Networks SA and Siemens AG.

The CPRI Specification versions 1.4, 2.1, and 3.0 are now available for download on the Specification section of this homepage. 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.

September 30 2003
Industry leaders launch new specification for 3G radio base stations (CPRI).