Subscriber device switching between base stations in the 4G network happens during 40 ms, allowing full access
to the network. We carried out experimental investigations with a car at speeds up to 140 km/h. The system we
used was an ordinary 4G USB Modem Samsung SWC-U200 connected to a simple netbook. The program we
applied was Yota Access. Thus, we were able to measure the CINR (Carrier to Interference and Noise Ratio)
and the RSSI (Received Signal Strength Indication).