A method for resource allocation in a mobile communication system including base stations from mobile communication providers and participants from mobile communication providers, wherein each provider has assigned a dedicated spectrum for resource allocation for its own participants, wherein the participants from the providers communicate directly among each other, wherein a provider allocates a part of its dedicated spectrum for the direct communication among the participants from the providers, wherein the part of a dedicated spectrum of a provider for the direct communication among the participants from the providers is divided into sections, with each provider having been assigned at least one section of the part of the dedicated spectrum of the provider, wherein the resource allocation management functionality for allocating a part of its dedicated spectrum for the direct communication among the participants from the providers is shifted from provider to provider from time slice to time slice.