According to certain embodiments, a method by a wireless device is provided for determining a maximum output power. The method includes obtaining, by the wireless device, a first time resource for transmitting a first signal in βa first cell on a first carrier and a second time resource for transmitting a second signal in a second cell on a second carrier. Based on the first time resource and the second time resource, the maximum output power is 10 determined. The first signal and the second signal are transmitted based on the determined maximum output power.