A method for transmitting uplink signals by a user equipment, the method comprising: receiving uplink, UL, power control information indicating a subframe set configuration; receiving a first transmit power control, TPC, information included in a first downlink control information, DCI; determining transmit power of a physical uplink shared channel, PUSCH, based on the first TPC information; transmitting the PUSCH with the determined transmit power of the PUSCH; receiving a second TPC information included in a second DCI; determining transmit power of a physical uplink control channel, PUCCH, carrying ACK/NACK information for a physical downlink shared channel, PDSCH, based on the second TPC information; and transmitting the PUCCH with the determined transmit power of the PUCCH, and the method characterized in that: the transmit power of the PUSCH is determined according to a first PUSCH power control process or a second PUSCH power control process, the first PUSCH power control process and the second PUSCH power control process are set independently to each other, the transmit power of the PUSCH is determined based on the first TPC information according to the first PUSCH power control process if the PUSCH is transmitted in a subframe belonging to a first subframe set indicated by the subframe set configuration, the transmit power of the PUSCH is determined based on the first TPC information according to the second PUSCH power control process if the PUSCH is transmitted in a subframe belonging to a second subframe set indicated by the subframe set configuration, and the method further comprises: receiving a downlink, DL, hybrid automatic repeat and request, HARQ configuration information indicating a uplink-downlink, UL-DL, configuration used as a DL HARQ reference configuration; wherein the transmit power of the PUCCH is determined based on the second TPC information according to the DL HARQ reference configuration. receiving uplink, UL, power control information indicating a subframe set configuration; receiving a first transmit power control, TPC, information included in a first downlink control information, DCI; determining transmit power of a physical uplink shared channel, PUSCH, based on the first TPC information; transmitting the PUSCH with the determined transmit power of the PUSCH; receiving a second TPC information included in a second DCI; determining transmit power of a physical uplink control channel, PUCCH, carrying ACK/NACK information for a physical downlink shared channel, PDSCH, based on the second TPC information; and transmitting the PUCCH with the determined transmit power of the PUCCH, and the method characterized in that: the transmit power of the PUSCH is determined according to a first PUSCH power control process or a second PUSCH power control process, the first PUSCH power control process and the second PUSCH power control process are set independently to each other, the transmit power of the PUSCH is determined based on the first TPC information according to the first PUSCH power control process if the PUSCH is transmitted in a subframe belonging to a first subframe set indicated by the subframe set configuration, the transmit power of the PUSCH is determined based on the first TPC information according to the second PUSCH power control process if the PUSCH is transmitted in a subframe belonging to a second subframe set indicated by the subframe set configuration, and the method further comprises: receiving a downlink, DL, hybrid automatic repeat and request, HARQ configuration information indicating a uplink-downlink, UL-DL, configuration used as a DL HARQ reference configuration; wherein the transmit power of the PUCCH is determined based on the second TPC information according to the DL HARQ reference configuration. the transmit power of the PUSCH is determined according to a first PUSCH power control process or a second PUSCH power control process, the first PUSCH power control process and the second PUSCH power control process are set independently to each other, the transmit power of the PUSCH is determined based on the first TPC information according to the first PUSCH power control process if the PUSCH is transmitted in a subframe belonging to a first subframe set indicated by the subframe set configuration, the transmit power of the PUSCH is determined based on the first TPC information according to the second PUSCH power control process if the PUSCH is transmitted in a subframe belonging to a second subframe set indicated by the subframe set configuration, and the method further comprises: receiving a downlink, DL, hybrid automatic repeat and request, HARQ configuration information indicating a uplink-downlink, UL-DL, configuration used as a DL HARQ reference configuration; wherein the transmit power of the PUCCH is determined based on the second TPC information according to the DL HARQ reference configuration. receiving a downlink, DL, hybrid automatic repeat and request, HARQ configuration information indicating a uplink-downlink, UL-DL, configuration used as a DL HARQ reference configuration; wherein the transmit power of the PUCCH is determined based on the second TPC information according to the DL HARQ reference configuration.