Common Public Radio Interface

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Info & FAQ

Information & Frequently Asked Questions

In the Roadmap document, future planned versions of the CPRI Specification are outlined.

The two presentations below give an outline of the CPRI cooperation. They were first communicated at the CPRI Day in November 2003

Read more 1 and Read more 2

Q: How can my company benefit from CPRI?

A: CPRI is a cooperation between five companies: Ericsson, Huawei, NEC, Nortel, Nokia Siemens Networks and Alcatel-Lucent. The CPRI Specification will be made public, and will be free for all companies to use. Progress on the specification work will be reported regularly. In addition anyone who wishes may contribute ideas, proposals and comments to CPRI during the specification work.

Q: How can my company contribute proposals and comments to CPRI?

A: Comments and proposals to CPRI can be submitted from a form on this homepage, see www.cpri.info/comments.htm.

Q: Why is the CPRI interface not defined by existing standards bodies such as 3GPP?

A: The CPRI initiative is a complement to current activities in formal standards organizations such as 3GPP and 3GPP2. There are numerous industry forums similar to CPRI (e.g. Bluetooth SIG, Open Mobile Alliance, OMA) in which system vendors and other companies participate.

The CPRI Specification versions 1.4, 2.1, 3.0 , 4.0 and 4. 1 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.

May 20 2009
The CPRI Specification version 4. 1 (in addition to 1.4, 2.1, 3.0 , 4.0 ) is now available for download on the Specification section of this homepage. The new 4. 1 release extends the specification to encompass higher line-rates for LTE (Long Term Evolution). A variety of CPRI products have been made available to the market by the individual CPRI Parties.

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.