A method comprising: selecting one or more additional component carriers by a first node, the resources of the selected one or more component carriers being shared with one or more second nodes (46, 46'); determining the identity of at least one of the one of more second nodes (46, 46') with which the first node has an interference bond with a strength above a predetermined threshold for the shared component carrier resources; sending a request to the at least one second node (46, 46') for information relating to the use of the shared component carrier resources, the request comprising an indication of the selected one or more component carriers; receiving a response from the at least one second node (46, 46'), the response comprising information relating to at least one existing coalition of the at least one second node (46, 46') with respect to the indicated one or more component carriers, wherein the use of the shared component carrier resources is non-interfering within each coalition of nodes; determining, by the first node, how the shared component carrier resources are currently allocated to the at least one second node (46, 46'); determining, by the first node, a new allocation of shared component carrier resources with respect to the at least one existing coalition of the at least one second node (46, 46'); and causing at least one allocation message including the new allocation to be sent to the at least one second node (46, 46'), the allocation message comprising an indication that at least a part of the shared component carrier resources used by the at least one second node (46, 46') has been allocated to the first node, and an indication that one or more new coalitions are formed between the first node and the at least one second node (46, 46'). selecting one or more additional component carriers by a first node, the resources of the selected one or more component carriers being shared with one or more second nodes (46, 46'); determining the identity of at least one of the one of more second nodes (46, 46') with which the first node has an interference bond with a strength above a predetermined threshold for the shared component carrier resources; sending a request to the at least one second node (46, 46') for information relating to the use of the shared component carrier resources, the request comprising an indication of the selected one or more component carriers; receiving a response from the at least one second node (46, 46'), the response comprising information relating to at least one existing coalition of the at least one second node (46, 46') with respect to the indicated one or more component carriers, wherein the use of the shared component carrier resources is non-interfering within each coalition of nodes; determining, by the first node, how the shared component carrier resources are currently allocated to the at least one second node (46, 46'); determining, by the first node, a new allocation of shared component carrier resources with respect to the at least one existing coalition of the at least one second node (46, 46'); and causing at least one allocation message including the new allocation to be sent to the at least one second node (46, 46'), the allocation message comprising an indication that at least a part of the shared component carrier resources used by the at least one second node (46, 46') has been allocated to the first node, and an indication that one or more new coalitions are formed between the first node and the at least one second node (46, 46').