# Mobile Network Operators' Assessment Based on Drive-Test Campaign in Urban Area for iPerf Scenario
## 2 Drive Test Campaign  
### Measurement Scenario  
The QoS analysis was carried out based on a 33.5-h drive test campaign in an urban environment that was performed on 23-27 September of the 2021 year by the Systemics-PAB company, which provides a QoS/QoE assessment in mobile networks for MNOs, regulatory authorities, or other entities [33]. The time scheme of the tests is presented in Table 1.  
The measurement campaign was carried out for four MNOs: Orange, T-Mobile, Play, and Plus, called Orange Polska, T-Mobile Polska, P4, and Polkomtel, respectively. They are global MNOs providing 4G/5G services in Poland. In the following, we use the shorter brand-name MNOs.  
Nowadays, the MNOs use 5G NSA technology. Two methods of ensuring transmission for 5G services are implemented in their networks [33]:  
* Dynamic sharing of 10 or 15 MHz channels within a frequency band at 2.1 GHz for 5G or LTE services, used by Orange, T-Mobile, and Play;
* Providing a 40 MHz channel within a frequency band at 2.6 GHz used by Plus.  
The detailed description of frequency allocation for each MNO is presented in Appendix A.  
The purpose of the drive tests was to collect statistically representative measurement data enabling the assessment of the network readiness of four Polish MNOs in Warsaw to support 5G services concerning the service scenarios defined in 'Mobile and wireless communications Enablers for the Twenty-twenty Information Society-II' (METIS II) project [34]. It was possible by conducting a complete set of tests, such as interactive data transmission, iPerf-supported tests, sequential web browsing, and multimedia streaming transfers based on YouTube service. Table 2 presents the number of measurements (so-called bins) for the tested services per each MNO. The total number of performed measurements (bins) was 46,608, of which 340 were incorrect (i.e., lack of a complete set of measured parameters). Figure 1 presents the percentage of the analyzed service bins for each MNO and the percentage of MNO bins in the iPerf test. In this paper, we only analyzed the measurement results for the iPerf tests. We will continue our studies for other services shortly.  
\begin{table}
\begin{tabular}{c c} \hline \hline
**Data** & **Time** \\ \hline
23 September 2021 & 14:42–18:18 \\
24 September 2021 & 08:34–17:39 \\
25 September 2021 & 08:11–16:41 \\
26 September 2021 & 08:41–18:19 \\
27 September 2021 & 07:59–09:19 \\ \hline \hline \end{tabular}
\end{table}
Table 1: Time schedule of measurement campaign.  
The measurement campaign was carried out in the Capital City of Warsaw. Figure 2 illustrates the measurement vehicle route during the drive test campaign [33]. The average speed of the measurement vehicle varied between 0 and 105 km/h.  
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**MNO** & **iPerf** & **HTTP Browsing** & **Interactive** & **YouTube** & **All Services** \\ \hline Orange & 2859 & 4846 & 1027 & 1900 & 10,632 \\ Play & 2879 & 6382 & 1071 & 6105 & 16,437 \\ Plus & 3005 & 3762 & 716 & 795 & 8278 \\ T-Mobile & 3060 & 4293 & 903 & 2665 & 10,921 \\ All MNOs & 11,803 & 19,283 & 3717 & 11,465 & 46,268 \\ \hline \hline \end{tabular}
\end{table}
Table 2: Number of performed bins for tested services per each MNO.  
Figure 1: (**a**) Percentage of analyzed service bins for each MNO and (**b**) percentage of MNO bins in iPerf test.  
Figure 2: Measurement route during drive test campaign in Warsaw [33].