An apparatus comprising: at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: receive (1302) a resource configuration for a first cell group link; receive (1304) a resource configuration for a second cell group link; determine (1306) a mode of operation; and determine a resource type for the first cell group link or the second cell group link based on the resource configuration for the first cell group link, the resource configuration for the second cell group link and the mode of operation.