Data Sheet VIAVI Solutions Overview The TeraVM O-CU Simulator provides a complimentary test component to the O-DU Test tool from TM500. The O-RAN Alliance is promoting the disaggregation of the gNB into three distinct, open and standardized elements: • O-RU: Open Radio Unit responsible for digital front end, lower part PHY layers • O-DU: Open Distributed Unit responsible for RLC, MA and higher part PHY layers • O-CU: Open Central Unit responsible for RRC and PDCP layers VIAVI has introduced a new O-RAN test suite to help vendors validate their products according to the O-RAN standards as well as Service Providers wishing to verify the interoperability of these components before launching their network. The TeraVM O-CU Simulator is a software-based test tool housed on x86 hardware - compliant against 3GPP F1 application protocol, supports up to 256 DUs per emulated CU and is capable of emulating up to 8 CUs per server. The TeraVM O-CU Simulator can emulate 5G scenarios: Features • First to market O-DU full wraparound test compliant with latest 3GPP, • O-RAN standards • Runs in lightweight VM on standard x86 hardware • CI/CD Automation Integration • Functional Testing • Performance, Capacity Testing • Supports Open-source automation tools such as Jenkins System Under Test

Preparing for the Challenges of O-RAN Fronthaul Testing The cellular industry is adopting cloud and virtual network technologies to simplify deployment, maintenance and optimize capital expenditure. To support this, one of the key objectives of the O-RAN Alliance is to bring uniformity in connectivity and test interfaces, and foster the use of off-the-shelf hardware as a means of reducing costs. Achieving these objectives opens new challenges for Network Equipment Manufacturers and Operators in particular. Some of the challenges include: y Challenge of guaranteeing performance with scale and...

FUNCTIONAL / PERFORMANCE / CAPACITY TESTING / TROUBLESHOOTING & ASSURANCE O-DU^O-CU O-CU^OCU CN^O-CU O-CU^CN CN^CN COMPLETE SET OF O-RAN SUBSYSTEM TESTING EMULATORS TM500 Family • —-----i r--—--—--— Cloud-deployed TeraVM Family G and 5G Device and O-DU Emulation Application emulation O-RU (OFH) Test O-CU Emulati°n E2 Emulation O-DU Emulation RAN Emulation Core Emulation App O-DU (F0 Test RIC Test O-CU (Fl) Test Core Test RAN Test Emulati°n □ IK CellAdvisor 5G T-BERD/MTS-5800 RF Beam Network Tester Analysis X-haul, Latency, Timing & Sync testing O-DU Test Cases The TeraVM O-CU Simulator acts as...

VIAVI has the largest dedicated 4G and 5G R&D team of any test company focusing on gNB, Core Network test. We work closely with our key customers to ensure that our roadmap is aligned to market needs and that we deliver test capability first. The TeraVM O-CU Simulator consists of the following network function and interfaces: The implemented features are according to the following specifications: (Contact VIAVI for latest Spec compliance) • 3GPP TS 38.473: NG-RAN F1 Application Protocol The TeraVM O-CU Simulator is based on the POWEREDGE R740 server with the following specifications below: VIAVI...