Smooth migration from 4G LTE Networks to 5G Open RAN

July 29, 2021 // By Jean-Pierre Joosting
Smooth migration from 4G LTE Networks to 5G Open RAN
Integrated O-RAN validation systems demonstrate end-to-end interoperability and performance of multi-vendor network architectures

Keysight Technologies has teamed up with Xilinx and Cisco to showcase fronthaul systems that support a smooth migration path from traditional 4G LTE networks to 5G Open RAN or O-RAN.

Multi-vendor radio access network (RAN) deployments based on open standard interfaces defined by the O-RAN Alliance require thorough end-to-end validation across radio RF and protocol domains, as well as from the physical to the application layer. Keysight offers integrated hardware and software O-RAN systems that enable a diverse ecosystem of vendors and mobile operators to quickly verify performance, interoperability and compliance to the O-RAN specification of each network element and end-to-end.

"Keysight is working with Xilinx and Cisco to support the development of 4G and 5G solutions that share the same fronthaul network, enabling mobile operators to cost-effectively migrate to 5G open RAN deployments," said Giampaolo Tardioli, vice president and general manager of Keysight's network access group. "Our demonstration underscores the robustness of O-RAN specifications by bringing together Keysight Open RAN Architect with Xilinx's O-RAN compliant radio unit (O-RU) and Cisco's fronthaul gateway, supporting both common public radio interface (CPRI) and O-RAN fronthaul interfaces.”

Keysight's S5040A Open RAN Studio Player and Capture Appliance, is a hardware platform that constructs, plays, captures and measures O-RAN traffic over fronthaul Ethernet interfaces. During the recent Mobile World Congress (MWC 21), Keysight revealed a video demonstration, which combined this instrument-grade test and measurement tool with its PathWave Signal Generation (Signal Studio), PathWave Vector Signal Analysis (89600 VSA) and Open RAN Studio software to emulate a distributed unit (O-DU), capture O-RAN uplink communications and validate an O-RU's functional operation and performance.

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