仕様の概略

The first version of the CPRI interface specification will have the following scope:

1. A digitized and serial internal base station interface between 'Radio Equipment Control' (REC)
and 'Radio Equipment' (RE) will be specified.

2. The necessary items for transport, connectivity and control are included in the Specification. This includes User Plane data, Control Plane transport mechanisms, and means for synchronisation

3. The Specification will cover Layers 1 and 2 of the OSI stack.

3a. The physical layer (layer 1) will support both an electrical interface (i.e. what is used in traditional base stations), and an optical interface (e.g. for base stations with remote radio equipment).

3b. Layer 2 shall support flexibility and scalability.

4. The Specification shall comply with 3GPP UTRA FDD release 5.

インターフェースの仕様

Non-assertion of Essential Patents and Copyrights

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 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, subcontractors producing the non asserting Party's product and/or any of its customers.

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 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.

No License

IN ORDER TO AVOID ANY DOUBT BY DOWNLOADING THE SPECIFICATION YOU DO NOT RECEIVE ANY EXPRESSED OR IMPLIED LICENSE AND/OR ANY OTHER RIGHTS WHATSOEVER FROM ANYBODY.

法的規定の項に定められた条件を読み、同意された方のみダウンロードできます。

REとRECの定義

REとRECを定義したドキュメントをダウンロードする

Comments and proposals

Comments and proposals to CPRI can be submitted from www.cpri.info/comments.html (In English only).

CPRI仕様ver.1.4, 2.1と3.0を公開しており、このホームページのSpecificationの欄からダウロードできます。CPRI参加各社はこの仕様に準じた様々な製品を市場に出しています。

March 06 2007
CPRI仕様ver.1.4, 2.1と3.0を公開しており、ダウンロード可能です。Ver.3.0はWiMAX対応、ラインビットレートの増加及び修正事項が追加されています。ver.1.4と2.1は従来と変更はありません。

詳細はこちら

August 29 2006
CPRI仕様ver.1.4と2.1を公開しており、ダウンロード可能です。Ver.1.4は1.3からの編集及び修正事項が盛り込まれており、ver.2.1は2.1からの編集及び修正事項が盛り込まれております。

詳細はこちら

October 15 2004
CPRI仕様ver.1.3と2.0を公開しており、ダウンロード可能です。Ver.1.3は1.2の解説と修正事項が盛り込まれており、ver.2.0はネットワークサポートの内容が含まれています。

詳細はこちら

September 30 2003
通信業界リーダー５社は3G無線基地局の新たな標準仕様を公表しました。

詳細はこちら