# Crowdsourcing Based Performance Analysis of Mobile User Heterogeneous Services
## 5 Use Cases
### Use Case 1: Data Statistical Study in Heterogeneous Environments
Indeed, the same RSRP and RSRQ parameter thresholds are found in the cases of the categories:  
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Name** & **OK (No Problem)** & \multicolumn{4}{c}{**Problem (Failed or Time Out)**} \\ \hline  & & **RSRP** & **RSRQ** & & **RSRP** & **RSRQ** \\ \hline \multirow{6}{*}{File downloading} & COUNT & \(25\),644 & \(25\),644 & COUNT & \(41\) & \(41\) \\  & MEAN & \(-92.03\) & \(-12.35\) & MEAN & \(-86.66\) & \(-8.87\) \\  & STD & \(14.07\) & \(3.68\) & STD & \(14.64\) & \(3.78\) \\  & MIN & \(-140.00\) & \(-20.00\) & MIN & \(-116.00\) & \(-18.00\) \\  & \(25\%\) & \(-102.00\) & \(-14.00\) & \(25\%\) & \(-87.66\) & \(-10.87\) \\  & \(50\%\) & \(-93.00\) & \(-13.00\) & \(50\%\) & \(-83.00\) & \(-7.00\) \\  & \(75\%\) & \(-83.00\) & \(-11.00\) & \(75\%\) & \(-81.00\) & \(-6.00\) \\  & MAX & \(-44.00\) & \(-3.00\) & MAX & \(-52.00\) & \(-5.00\) \\ \hline \multirow{6}{*}{Video streaming} & \multicolumn{2}{c}{**RSRP**} & **RSRQ** & & **RSRP** & **RSRQ** \\ \cline{2-6}  & COUNT & \(48.977\) & \(48.977\) & COUNT & \(7125\) & \(7125\) \\  & MEAN & \(-92.01\) & \(-10.80\) & MEAN & \(-97.65\) & \(-13.76\) \\  & STD & \(13.81\) & \(3.78\) & STD & \(13.92\) & \(3.27\) \\  & MIN & \(-140.00\) & \(-20.00\) & MIN & \(-134.00\) & \(-20.00\) \\  & \(25\%\) & \(-102.00\) & \(-13.00\) & \(25\%\) & \(-107.66\) & \(-16.87\) \\  & \(50\%\) & \(-93.00\) & \(-12.00\) & \(50\%\) & \(-99.00\) & \(-14.00\) \\  & \(75\%\) & \(-84.00\) & \(-8.00\) & \(75\%\) & \(-90.00\) & \(-12.00\) \\  & MAX & \(-44.00\) & \(-3.00\) & MAX & \(-44.00\) & \(-3.00\) \\ \hline \multirow{6}{*}{Web browsing} & \multicolumn{2}{c}{**RSRP**} & **RSRQ** & & **RSRP** & **RSRQ** \\ \cline{2-6}  & COUNT & \(31\),384 & \(31\),384 & COUNT & \(5135\) & \(5135\) \\  & MEAN & \(-92.76\) & \(-11.67\) & MEAN & \(-98.51\) & \(-13.65\) \\  & STD & \(15.02\) & \(3.70\) & STD & \(18.30\) & \(3.75\) \\  & MIN & \(-137.00\) & \(-20.00\) & MIN & \(-140.00\) & \(-20.00\) \\  & \(25\%\) & \(-104.00\) & \(-14.00\) & \(25\%\) & \(-87.66\) & \(-16.00\) \\  & \(50\%\) & \(-95.00\) & \(-12.00\) & \(50\%\) &\"Excellent\", \"Good\" and \"No Signal\". In addition, we further refined the study of the \"Poor to Fair\" category by finding the thresholds that allow this category to be subdivided into two levels: \"Acceptable\" and \"Very poor\", where the quality of video service is acceptable between \(-90\) (dBm) and \(-95\) (dBm) for the RSRP indicator, and web service quality is also acceptable between \(-90\) (dBm) and \(-96\) (dBm). Concerning the RSRQ indicator, the acceptability threshold is \(-12\) (dBm) for the two services. According to these results, we have concluded that RSRP values are interesting for studying each service separately according to our collected dataset. Furthermore, we observe that the RSRQ does not have significant variations. For this later reason, we focus on the RSRQ to study the impact of the user terminal type in a heterogeneous environment. To do this, we present in Figure 7 the RSRP indicator thresholds by service (web or video) and by user terminal. In our case, we measured with two devices: Xiaomi Note Pro 9 (noted Redmi) and Samsung A10 (noted Samsung). From Figure 7, we find that the acceptable RSRP threshold is different for each user terminal. In fact, with the Redmi device, the acceptable threshold is \(-93\) (dBm) for both web and video services, while it equals \(-98\) (dBm) for the Samsung device. Consequently, we notice that the Redmi is performing better than Samsung. This means that the gain of the receiving antenna is much higher in the Redmi device. As both devices are used in the same place, with the same direction and distance of the base station and for similar technology (frequency band), and according to the Friis Equations (4)-(7) in [29], we conclude that the antenna of Redmi has a better reception gain than the one of Samsung.