Analysis of Power Consumption in 4G VoLTE and 5G VoNR Over IMS Network

The purpose of this work is to assess the battery consumption for voice call services in both 5G Standalone (SA) and 4G Long Term Evolution (LTE) mobile networks. The voice call services are assessed as a function of the power consumption during a call over IP Multimedia Subsystem (IMS) network. A top-class Device Under Test (DUT) and an experimental setup was used to evaluate the current and power values during the experimentation. Measurement results show that the DUT consumes up to 38.88 % less energy when performing voice calls using a 5G SA network. Additionally, voice calls made using 5G SA networks had superior quality compared to voice calls made in 4G networks, with an average jitter difference of up to 16.5 ms. Based on the results, analyses of the battery consumption are provided for improvements to the IMS technology and Voice over New Radio (VoNR) commercial use.