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.
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. 17. The apparatus of claim 16 , wherein said indication of modality comprises an indication of whether the determination has to be based on radio measures performed by the requesting entities.