A network entity for assigning frequency spectrum for communication within a mobile communication network, the communication within the mobile communication network to be performed according to a requested communication service of a plurality of communication services, the communication within the mobile communication network to be performed between a first user equipment and a second user equipment, the network entity comprising: a service-specific spectrum requirements entity configured - to store a predetermined mapping between a plurality of service-specific requirements and the plurality of communication services, wherein each communication service is associated with at least one service-specific requirement; and a spectrum assignment coordination entity configured - to receive a spectrum assignment request signal from a radio resource management entity, the spectrum assignment request signal indicating the requested communication service, a first geographic location of the first user equipment, and a second geographic location of the second user equipment, - to retrieve a service-specific requirement corresponding to the requested communication service from the service-specific spectrum requirements entity, - to determine the frequency spectrum upon the basis of the requested communication service, the retrieved service-specific requirement, the first geographic location, and the second geographic location, - to generate a spectrum assignment answer signal indicating the determined frequency spectrum, and - to transmit the spectrum assignment answer signal to the radio resource management entity for assigning the frequency spectrum for the communication within the mobile communication network. a service-specific spectrum requirements entity configured - to store a predetermined mapping between a plurality of service-specific requirements and the plurality of communication services, wherein each communication service is associated with at least one service-specific requirement; and - to store a predetermined mapping between a plurality of service-specific requirements and the plurality of communication services, wherein each communication service is associated with at least one service-specific requirement; and a spectrum assignment coordination entity configured - to receive a spectrum assignment request signal from a radio resource management entity, the spectrum assignment request signal indicating the requested communication service, a first geographic location of the first user equipment, and a second geographic location of the second user equipment, - to retrieve a service-specific requirement corresponding to the requested communication service from the service-specific spectrum requirements entity, - to determine the frequency spectrum upon the basis of the requested communication service, the retrieved service-specific requirement, the first geographic location, and the second geographic location, - to generate a spectrum assignment answer signal indicating the determined frequency spectrum, and - to transmit the spectrum assignment answer signal to the radio resource management entity for assigning the frequency spectrum for the communication within the mobile communication network. - to receive a spectrum assignment request signal from a radio resource management entity, the spectrum assignment request signal indicating the requested communication service, a first geographic location of the first user equipment, and a second geographic location of the second user equipment, - to retrieve a service-specific requirement corresponding to the requested communication service from the service-specific spectrum requirements entity, - to determine the frequency spectrum upon the basis of the requested communication service, the retrieved service-specific requirement, the first geographic location, and the second geographic location, - to generate a spectrum assignment answer signal indicating the determined frequency spectrum, and - to transmit the spectrum assignment answer signal to the radio resource management entity for assigning the frequency spectrum for the communication within the mobile communication network.