A method of operation of a network node (12, 14) of a cellular communications network, comprising: obtaining, by the network node (12, 14), one or more self-interference parameters for self-interference at a wireless device within a downlink frequency band utilized by the wireless device and one or more additional wireless devices; and controlling, by the network node (12, 14), resource allocation for Physical Uplink Control Channel, PUCCH, transmission by the wireless device on an uplink component carrier of the wireless device such that the self-interference is mitigated, and resource allocation for PUCCH transmission by the one or more additional wireless devices such that the self-interference of the one or more additional wireless devices is mitigated, wherein the downlink frequency band is a frequency band of one of two or more downlink component carriers utilized by the wireless device for downlink carrier aggregation, wherein the cellular communications network is a Long Term Evolution cellular communications network, wherein controlling the resource allocation for the PUCCH transmission by the wireless device and controlling the resource allocation for the PUCCH transmission by the one or more additional wireless devices comprise: assigning innermost PUCCH resources to ones of the wireless device and the one or more additional wireless devices having strong self-interference; and assigning outermost PUCCH resources to ones of the wireless device and the one or more additional wireless devices having weak-to-moderate self-interference. obtaining, by the network node (12, 14), one or more self-interference parameters for self-interference at a wireless device within a downlink frequency band utilized by the wireless device and one or more additional wireless devices; and controlling, by the network node (12, 14), resource allocation for Physical Uplink Control Channel, PUCCH, transmission by the wireless device on an uplink component carrier of the wireless device such that the self-interference is mitigated, and resource allocation for PUCCH transmission by the one or more additional wireless devices such that the self-interference of the one or more additional wireless devices is mitigated, wherein the downlink frequency band is a frequency band of one of two or more downlink component carriers utilized by the wireless device for downlink carrier aggregation, wherein the cellular communications network is a Long Term Evolution cellular communications network, wherein controlling the resource allocation for the PUCCH transmission by the wireless device and controlling the resource allocation for the PUCCH transmission by the one or more additional wireless devices comprise: assigning innermost PUCCH resources to ones of the wireless device and the one or more additional wireless devices having strong self-interference; and assigning outermost PUCCH resources to ones of the wireless device and the one or more additional wireless devices having weak-to-moderate self-interference. assigning innermost PUCCH resources to ones of the wireless device and the one or more additional wireless devices having strong self-interference; and assigning outermost PUCCH resources to ones of the wireless device and the one or more additional wireless devices having weak-to-moderate self-interference.