15. The apparatus of claim 14 , wherein said configuration data comprise, for each of said cells, a definition of a list of other cells in overlap therewith and belonging to a different group of system radio resources.
16. The apparatus of claim 15 , wherein said configuration data comprise, for each of said cells, an indication of a modality of determination of an admissible alternative radio resource of a system susceptible of being used for satisfying the communication service request.