Performance Analysis of 5G Voice Solutions via EPS Fallback and VoNR

The rapid global adoption of 5G technology neces-sitates the optimization of network parameters and voice quality to ensure an unparalleled user experience. To address this, we present a comprehensive evaluation of New Radio (NR) voice solutions in the context of 5G-enabled mobile devices. In our study, we meticulously examined the call reception performance of three mobile devices, each equipped with modem chipsets from different manufacturers, within a controlled laboratory environment. Our data show that Device A and Device B, both compliant with 3GPP Release 15, display similar performance metrics despite using different modem chipsets. In contrast, device C, aligned with 3GPP Release 16, achieved a remarkable reduction in average Call Setup Time (CST) by 78.31% for Voice over New Radio (VoNR) and 95.72% for Evolved Packet System Fallback (EPS Fallback), relative to the combined CST of devices A and B. Our findings confirm that VoNR outperforms EPS Fallback in facilitating faster call setup times. This study addresses the pivotal matter of voice services over 5G during the deployment of 5G networks. It underscores the potential of emerging technologies to markedly improve user experience and reinforces the telecommunications industry's dedication to 5G service optimization.