Abstract
This paper models a cellular mobile communication system as synergetics from a macroscopic point of view. When the system becomes near saturation in call-flows, a cooperative action arises between each flow and the synergetics appears in the network. Under such a state, there is a microscopic interaction among call-flows in order to keep the macroscopic relationships. It is mathematically shown that the interaction is related to parameters representing with the graphtheoretical degree of freedom in the network.