VIAVI Unveils Open RAN Partnerships to Deliver Test and Assurance On Premise, In the Cloud or As a Service


Viavi Solutions Inc. (VIAVI) (NASDAQ: VIAV) today announced extensions to its Open RAN test suite to enable the industry to address challenges of maximizing development productivity and speed to market. The company’s portfolio of end-to-end test and assurance solutions for Open RAN – augmented by partnerships with leading vendors – can be deployed on premise, in the cloud or as a service. At MWC Barcelona, February 28-March 3, VIAVI will be showcasing joint solutions with AMD, Ericsson, and Rohde & Schwarz.

As Open RAN moves from the lab to the field, challenges of deploying any new technology are compounded by the need to support legacy networks. While greenfield operators are less concerned about this issue and are quicker to adopt cloud-native architectures, incumbents must balance the needs of significant subscriber and revenue bases. The resulting operator landscape requires vendors to configure solutions to address multiple generations of radio technology, bridging traditional infrastructure and the cloud, and integrating with incumbent equipment providers.

To address the accelerating pace of Open RAN adoption, VIAVI is introducing several enhancements to its industry-leading portfolio of end-to-end test and assurance solutions:

  • RIC Test. TeraVM RIC Test validates the performance of the RAN Intelligent Controller (RIC) when presented with a wide range of RAN scenarios, tests the functionality of rApps and xApps, and provides the means to generate the data needed to train AI models.
  • Test in the Cloud. VIAVI allows any node – O-RU, O-DU, O-CU, RIC and Core – and complete end-to-end testing to be performed in public, private and edge cloud environments.
  • Test as a Service. VIAVI now provides a Test as a Service (TaaS), offering the support to maximize your engineering productivity and provide access to the right tools and expertise to enable the rapid delivery of high performance and ultra-reliable cellular communications products.
  • TMLite. The capabilities of the flagship TM500 Network Tester are now available in a streamlined version on a commercial-off-the-shelf (COTS) server, enabling vendors to deploy focused functional test tools earlier in the development cycle, and allow smaller vendors to gain access to the TM500 family with a more compact package. The TMLite is built around the latest third-generation AMD EPYC processors which offer high compute and input/output flexibility per server, enabling multiple carriers of 4G and 5G at RF and Open Fronthaul.

As part of its commitment to deliver the most comprehensive solution suite in an evolving industry, VIAVI has also partnered with an ecosystem of leading companies. Recent developments include:

  • Capgemini. VIAVI has collaborated with Capgemini, through Capgemini Engineering in Portugal, to deliver an industry-leading 5G and O-RAN lab test capability, powered by VIAVI’s O-RAN Lab as a Service (LaaS) to ensure successful network integration of 5G networks and accelerate Lab-to-Live trials for Open RAN.
  • Ericsson. VIAVI will be delivering geolocation capabilities as a Non Real-time RIC Application (rApp) on the Ericsson Intelligent Automation Platform, a service management and orchestration product which enables any mobile network, purpose-built or Cloud RAN / Open RAN, to be intelligently automated.
  • Rohde & Schwarz. VIAVI and Rohde & Schwarz are partnering to offer an integrated solution for conformance testing of O-RAN Radio Units (O-RUs), including the O-RU Test Manager which provides a seamless user experience.

“Open RAN is moving out of the lab into the real world, facing the messy complexities of mapping theoretically sound technologies and architectures to a wide diversity of implementation scenarios,” said Sameh Yamany, Chief Technology Officer, VIAVI. “VIAVI has harnessed its decades of leadership in test tools for cellular and virtual networks, our critical role in industry organizations such as the O-RAN ALLIANCE, and our relationships with other major vendors to ensure our customers have access to tailored and best-of-breed solutions.”

At MWC Barcelona 2022
VIAVI will be conducting joint demonstrations with the following partners:

AMD, Stand #2M61: VIAVI and AMD will jointly demonstrate the ability to test the O-DU cost effectively with a small footprint solution able to do both UE emulation and Open Fronthaul testing in one small and compact solution. The VIAVI TMLite – based on a server with AMD EPYC CPUs – is connected to an O-DU as the device under test where upon running the test, both Uplink and Downlink data rates are shown over a high order MIMO carrier. Performance testing without compromise is possible with a cost-effective compact solution.

Ericsson, Stand #2O60: The Ericsson Intelligent Automation Platform enables any network to be intelligently automated and will work across new and existing 4G and 5G radio access networks (RANs), including purpose-built and Cloud RAN / Open RAN networks. Using the platform, Ericsson’s operator customers will be able to utilize the intelligence from one rApp in combination with other rApps running on the platform, in the creation of services. The NITRO Mobility geolocation capability from VIAVI will be available as an rApp – a modular radio network application leveraging the non-real-time RAN Intelligent Controller (Non-RT RIC) capability of the SMO platform. NITRO Mobility is the leading solution for intelligence, assurance and optimization based on geolocated, app-aware insight.

Rohde & Schwarz, Stand #5A80: VIAVI and R&S will jointly demonstrate O-RAN WG4 fronthaul conformance testing. An O-RU Reference Design is validated by VIAVI’s automated TM500 O-RU tester with R&S SMW200A vector signal generator, R&S FSVA3000 signal and spectrum analyzer and the R&S VSE signal analysis software.


Command The 5G Network: VIAVI Releases 2021 Updates to the Test Suite for O-RAN Specifications


Viavi Solutions Inc. (VIAVI) (NASDAQ: VIAV) today released updates to its industry-first Test Suite for O-RAN Specifications. The O-RAN ALLIANCE’s specifications for open radio access networks are being adopted by operators and equipment manufacturers worldwide, to reduce infrastructure costs and lower the barrier to entry for new product innovation. The test suite has been augmented to include use cases of critical importance as O-RAN becomes adopted at scale, as well as learnings from customer engagements around the globe.

In a multi-vendor based O-RAN environment, operators will bear the burden of ensuring conformance, interoperability, and performance. Based on its leading position validating network products for operators and manufacturers worldwide – including all Tier-1 network equipment manufacturers – VIAVI has the most comprehensive O-RAN test platform on the market, with CUSM-plane parameters used by more vendors than any other solution. The company is also active in specifications development, as the editor of interoperability test specifications in the open fronthaul (WG4) and open interfaces (WG5) working groups, and the co-chair of multiple working groups at the O-RAN ALLIANCE. VIAVI’s active contributions have enabled it to develop partnerships with complementary solutions from best-of-breed vendors.

Updates to the Test Suite include:

  • O-RAN Subsystem and End-to-End Testing – proving O-RU conformance, performance and interoperability to network operators; performance and interoperability validation of open fronthaul in the lab and field; validating the O-DU in a multi-vendor O-RU environment; validating F1 interface performance using an O-DU emulator; RAN Intelligent Controller and xApp mixed vendor ecosystem assurance; and end-to-end network performance, mobility and capacity test
  • Transport Network Testing – verification of 4G and 5G fronthaul transport and synchronization networks
  • Network Assurance – operational assurance, troubleshooting and optimization.

As a key example of the best-of-breed approach, VIAVI and Rohde & Schwarz are jointly demonstrating validation of open fronthaul performance with the O-RAN ALLIANCE at MWC Shanghai. This demonstration will showcase generation and delivery of typical standards based testcase IQ data to the O-RU utilizing the Lower Layer Split Option 7.2x fronthaul interface with the VIAVI TM500 O-RU Tester. Moreover, uplink and downlink fronthaul logs are captured, and RF signal generation and capture are performed using the Rohde & Schwarz vector signal generator and signal and spectrum analyzer hardware along with VSE Software for signal analysis. Testcase workflow is simplified for the end user utilizing the VIAVI O-RU Test Manager, providing a single point of test control.

“The promise of O-RAN extends beyond the many benefits of an open ecosystem to include a solid foundation for virtualized network elements, enabling increased speed and scalability to capture the burgeoning 5G market,” said Sameh Yamany, Chief Technology Officer, VIAVI. “Yet the complexity of multi-vendor O-RAN architecture presents significant challenges for successful network development, deployment and operation, requiring thorough validation, integration and troubleshooting with a complete set of advanced test solutions.”

VIAVI will be demonstrating the Test Suite for O-RAN Specifications at MWC Shanghai, at VIAVI booth #N1B137, and as part of O-RAN ALLIANCE events. MWC Shanghai will be taking place February 23-25, 2021 at the Shanghai New International Expo Centre. The 2021 edition of the VIAVI Test Suite for O-RAN Specifications can be requested here.