According to some embodiments, a method is performed by a wireless device operable to receive scheduling and data transmission from one or more downlink cells and perform uplink transmission with two or more uplink cells. The method comprises receiving scheduling for a downlink transmission in one of the downlink cells and scheduling for an uplink transmission in one of the uplink cells to provide feedback for the downlink transmission and determining whether the uplink transmission is scheduled at least a minimum processing time after the scheduled downlink transmission. The minimum processing time is based on a numerology of the downlink cells and the uplink cells. The method further comprises, upon determining that the uplink transmission is not scheduled at least a minimum processing time after the scheduled downlink transmission, transmitting an indication to at least one cell of the one or more downlink cells.