  The evolution of telecommunication network towards cloud-native environments
enables flexible centralization of the base band processing of radio signals.
There is however a trade-off between the centralization benefits and the
fronthaul cost for carrying the radio data between distributed antennas and
data processing centers, which host the virtual RAN functions. In this paper,
we present a specific split solution for an efficient fronthaul, which enables
reducing the consumed bandwidth while being compliant with advanced cooperative
radio technologies (interference reduction and data rate improvements). The
proposed split has been implemented on the basis of Open Air Interface code and
shows important gains in the required fronthaul bandwidth as well as
significant latency reduction in the processing of radio frames. \\
\textbf{Publisher:} IEEE \\ \textbf{ISBN:}978-1-7281-3130-6
