the invention relates to a state of activity management method for at least one terminal in a radio communications network , the said network giving the said terminal access to at least one service . according to the invention , such a method implements an analysis step by a state of activity management apparatus , analyzing the activity of the said terminal in such a manner as to deduce the state of activity information of the said terminal , the said apparatus being connected to the said radio communications network but not being included in the architecture of the said network , and the said power status information being accessible to at least one service provider internal or external to the said radio communications network .