A method of a User Equipment, UE, the method comprising: receiving a configuration for communication with a first base station and with a second base station, and a first percentage of a maximum UE transmission power for transmissions from the UE to the first base station and a second percentage of the maximum UE transmission power for transmissions from the UE to a second base station; determining whether the UE can have transmissions to the second base station, wherein the UE cannot have transmissions to the second base station in two subframes that overlap with a subframe where the UE transmits to the first base station, wherein UE transmissions to the first base station and to the second base station are asynchronous and the second base station uses Time Division Duplexing, TDD; when the UE can have transmissions to the second base station, transmitting to the first base station and to the second base station wherein, if in a transmission time interval of one subframe, SF, the UE either reduces a transmission power to the first base station or reduces a transmission power to the second base station, the UE does not reduce the transmission power to the first base station below the first percentage of the maximum UE transmission power in the SF or the UE does not reduce the transmission power to the second base station below the second percentage of the maximum UE transmission power in the SF, respectively; and when the UE cannot have transmissions to the second base station, determining: a first nominal total power for transmissions to one or more cells of the first base station according to respective power control processes; whether or not the first nominal total power is larger than a maximum UE transmission power in the SF; a first total power for transmissions to the one or more cells of the first base station that is equal to the first nominal total power if the first nominal total power is not larger than the maximum UE transmission power in the SF; and a second total power for transmissions to the one or more cells of the first base station that is equal to the maximum UE transmission power in the SF if the first nominal total power is larger than the maximum UE transmission power in the SF; and transmitting to the first base station according to the first total power when the first nominal total power is not larger than the maximum UE transmission power in the SF, and according to the second total power when the first nominal total power is larger than the maximum UE transmission power in the SF. determining whether the UE can have transmissions to the second base station, wherein the UE cannot have transmissions to the second base station in two subframes that overlap with a subframe where the UE transmits to the first base station, wherein UE transmissions to the first base station and to the second base station are asynchronous and the second base station uses Time Division Duplexing, TDD; when the UE can have transmissions to the second base station, transmitting to the first base station and to the second base station wherein, if in a transmission time interval of one subframe, SF, the UE either reduces a transmission power to the first base station or reduces a transmission power to the second base station, the UE does not reduce the transmission power to the first base station below the first percentage of the maximum UE transmission power in the SF or the UE does not reduce the transmission power to the second base station below the second percentage of the maximum UE transmission power in the SF, respectively; and when the UE cannot have transmissions to the second base station, determining: a first nominal total power for transmissions to one or more cells of the first base station according to respective power control processes; whether or not the first nominal total power is larger than a maximum UE transmission power in the SF; a first total power for transmissions to the one or more cells of the first base station that is equal to the first nominal total power if the first nominal total power is not larger than the maximum UE transmission power in the SF; and a second total power for transmissions to the one or more cells of the first base station that is equal to the maximum UE transmission power in the SF if the first nominal total power is larger than the maximum UE transmission power in the SF; and transmitting to the first base station according to the first total power when the first nominal total power is not larger than the maximum UE transmission power in the SF, and according to the second total power when the first nominal total power is larger than the maximum UE transmission power in the SF.