A method for a system comprising a base station and a User Equipment, UE, the base station assisting the UE to determine transmit power to be used for transmitting control information on a Physical Uplink Control Channel, PUCCH, on a first uplink component carrier y, wherein the base station is configured to communicate with the UE over a plurality of uplink and downlink component carriers x and y, and the UE is aware of a path loss parameter, PL(x), associated with a second downlink component carrier x, the method comprising: - determining, by the base station, cell specific path loss parameters associated with the component carriers of the base station, wherein the cell specific path loss parameters at least comprise a path loss parameter associated with the first uplink component carrier y and a path loss parameter associated with a second uplink component carrier x which is paired to the second downlink component carrier x, wherein the second uplink component carrier and the second downlink component carrier are within one frequency band, - calculating, by the base station, a pathloss offset, deltaPL(x,y), for the first uplink component carrier y, based on the determined cell specific path loss parameters, wherein the pathloss offset, deltaPL(x,y), is the pathloss power offset for the first uplink component carrier y with respect to the second uplink component carrier x, - sending, by the base station, the calculated pathloss offset, deltaPL(x,y), to the UE, - receiving, by the UE, the calculated pathloss offset, deltaPL(x,y), from the base station, - calculating, by the UE, a transmit power P PUCCH to be used for transmitting the control information on PUCCH on the first uplink component carrier y, wherein the transmit power is calculated for subframe i using a formula P PUCCH i = min P cmax, P 0 _ PUCCH + PL x + deltaPL x, y + h n CQI, n HARQ + Δ F _ PUCCH F + g i, wherein P cmax is a configured UE transmitted power, P 0_PUCCH is a parameter composed of a sum of a cell specific parameter P 0_NOMINAL_PUCCH provided by higher layers and a UE specific component P 0_UE_PUCCH provided by higher layers; h(n CQI, n HARQ) is a PUCCH format dependent value based on a number of information bits n CQI used for channel quality information, CQI, and a number of information bits n HARQ used for Hybrid Automatic Repeat Request, HARQ; Δ F_PUCCH is a value depending on a PUCCH format F; and g(i) is a PUCCH power control adjustment state at the subframe i, and - transmitting, by the UE at the calculated transmit power, the control information on PUCCH on the first uplink component carrier y. - determining, by the base station, cell specific path loss parameters associated with the component carriers of the base station, wherein the cell specific path loss parameters at least comprise a path loss parameter associated with the first uplink component carrier y and a path loss parameter associated with a second uplink component carrier x which is paired to the second downlink component carrier x, wherein the second uplink component carrier and the second downlink component carrier are within one frequency band, - calculating, by the base station, a pathloss offset, deltaPL(x,y), for the first uplink component carrier y, based on the determined cell specific path loss parameters, wherein the pathloss offset, deltaPL(x,y), is the pathloss power offset for the first uplink component carrier y with respect to the second uplink component carrier x, - sending, by the base station, the calculated pathloss offset, deltaPL(x,y), to the UE, - receiving, by the UE, the calculated pathloss offset, deltaPL(x,y), from the base station, - calculating, by the UE, a transmit power P PUCCH to be used for transmitting the control information on PUCCH on the first uplink component carrier y, wherein the transmit power is calculated for subframe i using a formula P PUCCH i = min P cmax, P 0 _ PUCCH + PL x + deltaPL x, y + h n CQI, n HARQ + Δ F _ PUCCH F + g i, wherein P cmax is a configured UE transmitted power, P 0_PUCCH is a parameter composed of a sum of a cell specific parameter P 0_NOMINAL_PUCCH provided by higher layers and a UE specific component P 0_UE_PUCCH provided by higher layers; h(n CQI, n HARQ) is a PUCCH format dependent value based on a number of information bits n CQI used for channel quality information, CQI, and a number of information bits n HARQ used for Hybrid Automatic Repeat Request, HARQ; Δ F_PUCCH is a value depending on a PUCCH format F; and g(i) is a PUCCH power control adjustment state at the subframe i, and - transmitting, by the UE at the calculated transmit power, the control information on PUCCH on the first uplink component carrier y.