A method for scheduling an uplink, UL, transmission from a wireless communication device, WCD, wherein the WCD is operable to communicate using a first carrier at a first frequency and second carrier at a second frequency, the method comprising: a base station determining that the WCD should be granted permission to transmit the UL transmission on the second carrier; the base station detecting at the second frequency an interfering signal that would interfere with the UL transmission on the second carrier by the WCD; and in response to detecting the interfering signal, the base station transmitting on the first carrier an UL grant message to the WCD, wherein the transmission of the UL grant message is based on the detected interfering signal, wherein the step of transmitting the UL grant message based on the detected interfering signal further comprises: the base station determining whether a power level of the interfering signal is less than a first threshold, I 0; characterized in the base station further performing the following steps as a result of determining that the power level is not less than the first threshold, I 0: the base station determining a duration estimate for estimating the duration of the interfering signal; the base station determining, based on the duration estimate, a point in time at which the base station will transmit to the WCD the UL grant message; and the base station transmitting the UL grant message at said determined point in time. a base station determining that the WCD should be granted permission to transmit the UL transmission on the second carrier; the base station detecting at the second frequency an interfering signal that would interfere with the UL transmission on the second carrier by the WCD; and in response to detecting the interfering signal, the base station transmitting on the first carrier an UL grant message to the WCD, wherein the transmission of the UL grant message is based on the detected interfering signal, wherein the step of transmitting the UL grant message based on the detected interfering signal further comprises: the base station determining whether a power level of the interfering signal is less than a first threshold, I 0; characterized in the base station further performing the following steps as a result of determining that the power level is not less than the first threshold, I 0: the base station determining a duration estimate for estimating the duration of the interfering signal; the base station determining, based on the duration estimate, a point in time at which the base station will transmit to the WCD the UL grant message; and the base station transmitting the UL grant message at said determined point in time. the base station determining whether a power level of the interfering signal is less than a first threshold, I 0; characterized in the base station further performing the following steps as a result of determining that the power level is not less than the first threshold, I 0: the base station determining a duration estimate for estimating the duration of the interfering signal; the base station determining, based on the duration estimate, a point in time at which the base station will transmit to the WCD the UL grant message; and the base station transmitting the UL grant message at said determined point in time. the base station determining a duration estimate for estimating the duration of the interfering signal; the base station determining, based on the duration estimate, a point in time at which the base station will transmit to the WCD the UL grant message; and the base station transmitting the UL grant message at said determined point in time.