Why can CPRI links not be wireless?

1. What is difference between CPRI and eCPRI?
2. What is CPRI link?
3. What are the specifications of CPRI?
4. Is CPRI proprietary?

What is difference between CPRI and eCPRI?

What is eCPRI and What Does it Mean for 5G? The Common Public Radio Interface (CPRI) is an interface that sends data from remote radio units to base station units. Enhanced CPRI (eCPRI) is a way of splitting up the baseband functions to reduce traffic strain on the fiber.

What is CPRI link?

The Common Public Radio Interface (CPRI) standard defines an interface between Radio Equipment Control (REC) and Radio Equipment (RE). Oftentimes, CPRI links are used to carry data between cell sites and base stations.

What are the specifications of CPRI?

CPRI specifications support L1 in-band protocol, High level Data Link Control (HDLC) and Ethernet for configuration and management data. Other data types supported by CPRI include synchronization for frame and time alignments.

Is CPRI proprietary?

Historically, because each vendor would have its own implementation of CPRI, it became proprietary, said Maupile. This forces carriers to buy both their RRUs and their baseband unit from the same vendor in order for the interface to work. “With O-RAN this interface will be open,” said Maupile.