The invention relates to a method for locating a first mobile terminal within a radio network. Said method comprises the following steps: a first locating process is carried out to determine an initial position of the first terminal; the first locating process is deactivated; a second locating process is carried out to at least approximately determine the current position of the first terminal relative to the initial position; and the first locating process is activated and carried out again to determine a new initial position of the first terminal when the current position reaches a minimum distance from the initial position. The invention also relates to a method for determining cliques of mobile terminals in a radio network encompassing a plurality of mobile terminals. Said method comprises the following steps: one or more independent numbers of terminals is determined, each couple of terminals of each of the independent numbers being located at a distance from each other that is greater than a predetermined threshold value; and at least one clique of terminals is determined, the couples of which are located at a shorter distance from each other than a predetermined threshold value, each independent number containing a maximum of one terminal of the clique.