An apparatus includes an analog to digital converter configured to receive one or more first frames of a first component carrier signal having a first uplink-downlink subframe pattern, and receive one or more additional frames of at least one additional component carrier signal, the one more or more additional frames including one or more second frames of a second component carrier signal, the at least one additional component carrier signal including the second component carrier signal. The apparatus may further include control logic configured to activate timing skew calibration of at least one of the first or second component carrier signals based, at least in part, on an operating mode of the second component carrier signal and respective symbols of the first component carrier signal and second component carrier signal.