Parameterizing 5G New Radio: A Comparative Measurement Study on Throughput and Delay

5G New Radio (NR) is designed to support diverse services, shifting from a fixed smartphone-centric infrastructure to flexible deployment options tailored for verticals like Ultra-Reliable Low-Latency Communications (URLLC) and Machine-Type Communications (MTC). To optimize the QoS of 5G NR to the service needs, understanding the impact of the introduced configuration parameters is critical. This paper investigates the configuration space of 5G NR using open-source 5G standalone deployments based on OpenAirInterface (OAI) and srsRAN (SRS). We conduct a detailed study on the impact of Next Generation NodeB (gNB) configurations on uplink and downlink throughput and latency, we compare the 5G NR implementations of OAI and SRS, and we investigate reproducibility across different testbeds at the University of Wuerzburg and NTNU. Our datasets are made publicly available.