Demonstration of a Concurrent Dual-Band Radio for Neutral Host 5G Base Stations

Reducing transceiver complexity and power consumption are critical considerations in the design of next-generation radio communication systems. This work demonstrates a dual-band, single-chain radio unit for neutral host Open RAN applications. The radio unit features a Digital Front-End (DFE) implemented on the AMD RFSoC <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$4\mathrm{x}2$</tex> platform and a Radio Frequency Front-End (RF-FE) constructed using connectorised commercial-off-the-shelf (COTS) components. The error vector magnitude (EVM) and block error rate (BLER) performance of the dual-band radio system are measured under customisable test conditions, highlighting the radio's flexibility.