A Comparative Study and Investigation Interoperability of 5G and 4G Mobile Networks: A Rajavithi Hospital Case Study
Keywords:
Download, Upload, Latency, High-rise buildingAbstract
The objective of this research is to study the collaboration between 5G and existing 4G networks by comparing three Quality of Service (QoS) parameters: Download Speed (DL), Upload Speed (UL), and Latency. The study was conducted under scenarios where 5G and 4G networks work together, using two 5G-compatible phones of the same brand and model, which also support 4G technology, running on Android 13. The Speedtest application was used to measure the signal within the medical center of Rajavithi Hospital, specifically on the 1st floor of the building, where the average speed was 291.8 Mbps. Measurements on the 20th to 24th floors showed an average speed of 115.1 Mbps, a decrease of 60.5%. It is inferred that one of the reasons for this speed reduction is the higher-than-normal proportion of collaboration between 5G and 4G networks. One service provider's network had a 67.7% proportion of 5G service, while another had 55.5%. On the 1st floor, both providers had a 98.6% proportion of 5G service. It can be concluded that using 5G phones or devices at ground level generally provides better download service quality than using them on higher floors of a building, which affects the quality of service.
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