Communications network (300, 400) having a plurality of network slices (310, 320) with a first network slice (slice I, 310) and a second network slice (slice II, 320), wherein a first communication entity with a first network function is assigned to the first network slice, wherein a second communication entity with a second network function is assigned to the second network slice, with: a sub-network manager for monitoring communication resources of the first network slice and of the second network slice, wherein the first network function defines an assignment of communication resources of the first network slice to the first network entity, and wherein the second network function defines an assignment of communication resources of the second network slice to the second communication entity; a first monitor that is designed to monitor a communication status of the first network function of the first communication entity of the first network slice and to send a first status signal to the sub-network manager, wherein the first status signal has the communication status of the first network function; a second monitor that is designed to monitor a communication status of the second network function of the second communication entity of the second network slice and to send a second status signal to the sub-network manager, wherein the second status signal has the communication status of the second network function; wherein the sub-network manager is designed to monitor the communication resources of the first network slice and of the second network slice on the basis of the first status signal and the second status signal, wherein the first status signal shows a utilisation of the communication resources of the first network slice; and the second status signal shows a utilisation of the communication resources of the second network slice, characterized in that the sub-network manager is designed to define the first network function and/or the second network function on the basis of an identification of a communications terminal in order to establish a communication connection with the communications terminal, wherein the sub-network manager is designed to establish the communication connection with the communications terminal corresponding to the first network function and/or the second network function, and wherein the sub-network manager is designed to control the communication resources of the first network slice and of the second network slice on the basis of the first status signal and the second status signal. a sub-network manager for monitoring communication resources of the first network slice and of the second network slice, wherein the first network function defines an assignment of communication resources of the first network slice to the first network entity, and wherein the second network function defines an assignment of communication resources of the second network slice to the second communication entity; a first monitor that is designed to monitor a communication status of the first network function of the first communication entity of the first network slice and to send a first status signal to the sub-network manager, wherein the first status signal has the communication status of the first network function; a second monitor that is designed to monitor a communication status of the second network function of the second communication entity of the second network slice and to send a second status signal to the sub-network manager, wherein the second status signal has the communication status of the second network function; wherein the sub-network manager is designed to monitor the communication resources of the first network slice and of the second network slice on the basis of the first status signal and the second status signal, wherein the first status signal shows a utilisation of the communication resources of the first network slice; and the second status signal shows a utilisation of the communication resources of the second network slice, characterized in that the sub-network manager is designed to define the first network function and/or the second network function on the basis of an identification of a communications terminal in order to establish a communication connection with the communications terminal, wherein the sub-network manager is designed to establish the communication connection with the communications terminal corresponding to the first network function and/or the second network function, and wherein the sub-network manager is designed to control the communication resources of the first network slice and of the second network slice on the basis of the first status signal and the second status signal.