Assessment of the adequacy of the measurement of the maximum speed of reception and transmission in LTE-Advanced in real-time

In order to investigate the effect of switching the transmission modes on the rate of reception and transmission of useful information in the LTE-Advanced network, it is necessary to estimate in real time the degree of the contribution of the specified process to the overall degradation of the channel capacity at each instant of time. A key parameter affecting the maximum achievable data reception and transmission rate in a channel of a given width and at the maximum permissible transmitter power is the signal-to-noise ratio in the channel, therefore it is extremely important to estimate the noise contribution of the switching process. To do this, it is first necessary to understand what real noise contribution the measurement system makes, the obligatory element of which is the radio frequency spectrum analyzer. In order to solve this problem, the method of determining the noise factor of the spectrum analyzer in real test conditions is considered and analyzed in this article.