The LTE base station used in the functional test was fitted with RRH (Remote Radio Head) components from Kathrein as well as BBU (Base Band Unit) equipment from Fujitsu which conformed to the ORI release 1. The connection was made using fibre optic cable. “ORI is based on the existing interface CPRI and offers some benefits in comparison; these include increased interoperability, higher performance and lower testing effort,” said Burkhard Mann, Head of Software Development at Kathrein. In the long term, this reduces the costs in the telecommunications industry.
Through ORI, network operators are more flexible because they can use the BBU and RRH equipment of various service providers. Ultimately, this leads to more innovations in terms of performance and design for these key mobile communication components. The ORI standard already supports LTE Advanced and UMTS in Release 1 and will support GSM/GPRS systems and optimisation for C-RAN architectures from the Releases 3 and 4.