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T E C K N E X U S HARNESSING CBRS: A NEW ERA OF NETWORK COVERAGE Radisys has pioneered the implementation of Citizen Broadband Radio Service (CBRS) via Open RAN, bringing a new level of flexibility to the wireless deployment model. CBRS, a radio-frequency spectrum that spans from 3.5GHz to 3.7GHz, was established by the Federal Communications Commission in 2015 as a shared spectrum. This spectrum offers tiers of usage for incumbent users, priority licensees, and generally authorized or lightly licensed users. Designed for the US market, the CBRS band aligns with the 3GPP Band 48, and overlaps Bands 42 (3400–3600 MHz) and 43 (3600–3800 MHz). CBRS facilitates a robust, LTE-like private network performance with the simplicity of Wi-Fi. For CBRS-based deployments in LTE and 5G New Radio (5GNR), Radisys offers integration with small cells and Distributed Units (DU) through a Spectrum Access Server (SAS) agent or a domain proxy. Radisys has also contributed an Automated CBSD Certification Test Harness to the CBRS Alliance for its OnGo certification program. Radisys has developed a Test Automation Platform and Software Framework for CBRS that accelerates market readiness and commercialization. This platform employs a spectrum analyzer to monitor RF emissions from CBSDs, an SAS emulator, and automation instructions to execute CBRS scenarios to ensure compliance with CBRS specifications. Radisys' platform also provides a framework for writing new test cases and automation instructions, making it a 100% automated solution that can be integrated into a CI/CD setup. By utilizing Radisys' software framework and expertise, small cell vendors, system integrators, and service providers can expedite the commercialization of CBRS- based custom Fixed Wireless Access, Private Enterprise LTE, and Neutral host services. Radisys' CBRS-ready eNodeB software allows vendors and service providers to deploy their own OnGo-compliant CBSDs cost-effectively. Moreover, Radisys' first-to-market Connect RAN 5G Software Suite, along with their comprehensive software frameworks, are based on a modular and scalable architecture that meets both Small Cell and Macro Cell Cloud RAN requirements. These frameworks come pre-integrated with 3rd Party L1 Baseband and ODM platforms and provide extendible software using APIs, demonstrating the company's commitment to fostering 4G and 5G open network innovation. Overall, Radisys' commitment to leveraging the benefits of CBRS via Open RAN is enabling a new era of robust, flexible, and effective wireless coverage solutions, effectively bridging the coverage gap. The firm's initiatives, solutions, and frameworks are instrumental in accelerating the commercialization and deployment of CBRS- based systems. AUG 2023 | #13

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