In this short paper we consider a cell in the network of mobile users.
It is proved that the mean value of distance between a user and a base
station and the mean value of emission power to a user are calculated in
a different manner. These two values are calculated for three
characteristic user density distributions in a cell. In another way
defined, the mean value of emission power to a user differs from the
emission power to a user positioned on the mean distance from a base
station. The results are verified by simulation.