Methods, systems and control units for controlling radio nodes are provided. In various embodiments, the radio nodes exchange backhaul information with at least one other radio node jointly over a first communication link established using a first frequency bandwidth (FBACKHAUL). In those embodiments, a second communication link is established using a second frequency bandwidth (FEND-USER) that is used by the radio nodes to provide uplink and downlink radio access connectivity to one or more end-user nodes using the second frequency bandwidth (FEND-USER). In some examples, the second communication link may only be established if the quality of the first communication link falls below a minimum quality threshold. In some examples, the portion of the second frequency bandwidth used to establish the second communication link may be dynamically allocated based at least on the quality of the first communication link.