Common Public Radio Interface

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Non-assertion principles

Non-assertion of Essential
patents and copy rights

The Parties shall not assert any of their Essential patents against any Party or a third party using, developing, having developed, manufacturing, or having manufactured and/or selling any RE and/or REC product that includes an interface which is fully compliant to the Specification, but solely to the extent that the interface is fully compliant to the Specification.

Such obligations not to assert shall apply against any Party or third party provided that and as long as such Party/party does not assert any of its Patents against the non-asserting Party, its affiliates, its customers, and/or subcontractors producing the non asserting Party's product.

In this event the applicable Party shall, subject to reciprocity and upon the asserting party's request, offer on fair, reasonable and non discriminatory terms and conditions a license to its Essential patents to use, develop, having developed, manufacture, or having manufactured
and/or selling any RE and/or REC product that includes an interface which is fully compliant to the Specification, but solely to the extent that the interface is fully compliant to the Specification.

"Essential patents" means any Specification patents or patent applications of such a nature that a party could not, technically, manufacture and/or sell RE and/or REC products that include an interface which is fully compliant to the Specification without infringing such patent or patent application.

"Relevant patents" shall mean any patents or patent applications whose claims subject matter can be used or interfaces with the Specification and that would be infringed by any product or application used or interfacing with the Specification.

"Patents" shall mean any Essential or Relevant patents or patent applications as defined above.

The copyright for the Specification is owned jointly by all Parties. The Parties shall not assert any copyright in order to prevent free copying of the Specification in connection with the use thereof.

CPRI cooperation is now working on increasing efficiency and the inclusion new features which will be published in new versions of the CPRI specification in due time.

May 10, 2019
CPRI Cooperation is releasing a new version of eCPRI Specification (eCPRI 2.0). The new specification will enhance the support for the 5G Front-haul by providing functionality to support CPRI (7.0) over Ethernet allowing for CPRI and eCPRI interworking.

May 10, 2019
The CPRI Specification eCPRI 2.0 (in addition to the eCPRI 1.2 and classic CPRI 1.4, 2.1, 3.0 , 4.0, 4.1, 4.2, 5.0, 6.0, 6.1, 7.0 ) is now available for download on the Specification section of this homepage. The updated eCPRI 2.0 specification enhances the support for the 5G Front-haul by providing functionality to support CPRI (7.0) over Ethernet allowing for CPRI and eCPRI interworking. The eCPRI specification supports the 5G Front-haul and provides enhancements to meet the increased requirements of 5G. The successful cooperation to continuously develop the CPRI has made this specification a well-established interface on the market for all Radio Base Station products released by the individual CPRI Parties.

June 25, 2018
CPRI cooperation has agreed to work for an updated specification eCPRI (2.0). The new specification will enhance the support for the 5G Front-haul by providing functionality to support CPRI (7.0) over Ethernet allowing for CPRI and eCPRI interworking.

June 25, 2018
The CPRI Specification eCPRI 1.2
(in addition to the classic CPRI 1.4, 2.1, 3.0 , 4.0, 4.1, 4.2, 5.0, 6.0, 6.1, 7.0 ) is now available for download on the Specification section of this homepage. The updated eCPRI 1.2 specification, presentation and Transport req. makes a few editorial updates primarily for clarity. The eCPRI specification will support the 5G Front-haul and will provide enhancements to meet the increased requirements of 5G. The successful cooperation to continuously develop the CPRI has made this specification a well-established interface on the market for all Radio Base Station products released by the individual CPRI Parties.

Januari 31, 2018
The CPRI Specification eCPRI 1.1
(in addition to the classic CPRI 1.4, 2.1, 3.0 , 4.0, 4.1, 4.2, 5.0, 6.0, 6.1, 7.0 ) is now available for download on the Specification section of this homepage. The updated eCPRI 1.1 specification, presentation and Transport req. makes a few editorial updates primarily for clarity. The eCPRI specification will support the 5G Front-haul and will provide enhancements to meet the increased requirements of 5G. The successful cooperation to continuously develop the CPRI has made this specification a well-established interface on the market for all Radio Base Station products released by the individual CPRI Parties.

August 31, 2017
The CPRI Specification eCPRI 1.0
(in addition to the classic CPRI 1.4, 2.1, 3.0 , 4.0, 4.1, 4.2, 5.0, 6.0, 6.1, 7.0 ) is now available for download on the Specification section of this homepage. The new specification will support the 5G Front-haul and will provide enhancements to meet the increased requirements of 5G. The successful cooperation to continuously develop the CPRI has made this specification a well-established interface on the market for all Radio Base Station products released by the individual CPRI Parties.

October 9, 2015
The CPRI Specification version 7.0 (in addition to 1.4, 2.1, 3.0 , 4.0, 4.1, 4.2, 5.0, 6.0, 6.1 ) is now available for download on the Specification section of this homepage. The new 7.0 release adds 24G line-rate to the previously released 10G LTE-Advanced. The successful cooperation to continuously develop CPRI has made this specification a well established interface on the market for all Radio Base Station products released by the individual CPRI Parties.

July 1, 2014
The CPRI Specification version 6.1 (in addition to 1.4, 2.1, 3.0 , 4.0, 4.1, 4.2, 5.0, 6.0 ) is now available for download on the Specification section of this homepage. The new 6.1 release adds 8G and 12G line-rate to the previously released LTE-Advanced. The successful cooperation to continuously develop CPRI has made this specification a well established interface on the market for all Radio Base Station products released by the individual CPRI Parties.

August 30, 2013
The CPRI Specification version 6.0 (in addition to 1.4, 2.1, 3.0 , 4.0, 4.1, 4.2, 5.0 ) is now available for download on the Specification section of this homepage. The new 6.0 release includes LTE-Advanced. The successful cooperation to continuously develop CPRI has made this specification a well established interface on the market for all Radio Base Station products released by the individual CPRI Parties.

September 21, 2011
The CPRI Specification version 5.0 (in addition to 1.4, 2.1, 3.0 , 4.0, 4.1, 4.2) is now available for download on the Specification section of this homepage. The new 5.0 release extends the specification to encompass GSM. The successful cooperation in continuously developing of CPRI has made this specification a well established interface on the market the main track for all Radio Base Station products released by the individual CPRI Parties.

November 1, 2010
The CPRI Specification version 4. 2 (in addition to 1.4, 2.1, 3.0 , 4.0, 4.1 ) is now available for download on the Specification section of this homepage. The new 4. 2 release extends the specification to encompass higher line-rates (9.8 Gbps). The successful cooperation in continuously developing of CPRI has made this specification a well established interface on the market the main track for all Radio Base Station products released 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 4, 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 6, 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.