User Equipment Mobility Affection Analysis on Modulation Performance in 5G New Radio

It is important for mobile networks to maintain the Quality of Service during the User Equipment movement from one place to another. One of the main features of cellular networks that distinguishes them from other wireless networks (Wi-Fi, Bluetooth, etc) is mobility support. The feature imposes a lot of requirements for radio channel quality in order to maintain the appropriate Quality of Experience. The 5G New Radio operates in a vast spectrum range - from 0.5 GHz to 100 GHz. It works with a bandwidth range from 5 MHz to 400 MHz depending on the frequency band. It is a complicated task to maintain mobility support. The higher frequency range is used, the more interference on a radio interface appears only by User Equipment movement. Besides the interference the Doppler effect appears once the user moving. The article is aimed to analyze the User Equipment movement affection on different modulation performances with different radio interface configurations including carrier frequency, modulation order, bandwidth and subcarrier frequency. The modulation performance is analyzed by criteria: bit error rate while data transmission.