Arria® 10 Transceiver PHY User Guide

ID 683617
Date 4/01/2024
Document Table of Contents

2.8. CPRI

The common public radio interface (CPRI) is a high-speed serial interface developed for wireless network radio equipment controller (REC) to uplink and downlink data from available remote radio equipment (RE).

The CPRI protocol defines the interface of radio base stations between the REC and the RE. The physical layer supports both the electrical interfaces (for example, traditional radio base stations) and the optical interface (for example, radio base stations with a remote radio head). The scope of the CPRI specification is restricted to the link interface only, which is a point-to-point interface. The link has all the features necessary to enable a simple and robust usage of any given REC and RE network topology, including a direct interconnection of multiport REs.