Keysight Technologies, Inc. announced that Zillnk (Sichuan Hengwan Technology Co. Ltd) has selected Keysight’s Open RAN (O-RAN) Studio software to complete radio unit (O-RU) conformance validation in downlink (DL) and uplink (UL) based on specifications published by the O-RAN Alliance. Zillnk, a provider of advanced antenna system technology and radio units, uses Keysight’s O-RAN test solutions to validate the performance and interoperability of network elements across protocol and radio frequency (RF) domains. This helps Zillnk accelerate development of macro and small cells aimed for deployment in disaggregated, open, multi-vendor heterogenous networks Keysight helps an ecosystem of O-RU vendors, such as Zillnk, develop solutions that mobile operators deploy to deliver advanced connectivity services for enterprises, smart cities and factories. Keysight's Open RAN Studio software, part of the company’s integrated solution portfolio, from the edge of the radio access network (RAN) to the 5G core (5GC), was launched as the industry’s first O-RAN distributed unit (O-DU) emulation software for validating O-RUs.