Rohde & Schwarz and VIAVI Solutions have supported the European OTIC in Berlin in the process of awarding O-RAN conformance certification for international markets. The certification of an indoor O-RU of the LPRU-series from VVDN Technologies was completed according to O-RAN specified processes and procedures as defined by the O-RAN ALLIANCE. This marks the first certification accomplished by a European test lab.
The i14y Lab is an open lab for interoperability testing of disaggregated telco systems, such as open RAN, led by Deutsche Telekom together with consortium partners. Rohde & Schwarz is one of the consortium members and offers an integrated solution for conformance testing of O-RAN Radio Units together with VIAVI Solutions. Both companies are active in specifications development in the O-RAN ALLIANCE and have combined their industry-leading capabilities. The solution consists of the VIAVI TM500 O-RU Tester and the R&S SMBV100A vector signal generator (VSG), R&S FSVA3000 signal and spectrum analyser and Vector Signal Explorer (R&S VSE) software from VIAVI TM500, with the O-RU Test Manager from VIAVI as single point of control, providing a user experience.
All approved Open Testing and Integration Centers (OTIC) worldwide cooperate with the O-RAN ALLIANCE in the O-RAN Certification and Badging Program, which represents a comprehensive mechanism to ensure confidence in O-RAN solutions within the industry. O-RAN is making radio access networks more open, disaggregated and flexible. Opening the network architecture can foster innovation, accommodate individual needs and enhance network efficiency. Therefore, O-RAN is experiencing rapid advancement and growth in the technology ecosystem.
The O-RU verification followed the O-RAN fronthaul conformance test specification defined by O-RAN WG4, including the Control, User and Synchronisation plane (CUS-Plane) and the Management-plane (M-Plane). WG4’s objective is to deliver open fronthaul interfaces, in which interoperability between distributed unit (DU) and radio unit (RU) from multiple vendors can be realised.
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