A method performed by a device, the method comprising: receiving a configuration that configures a plurality of control decoding candidates; monitoring a first set of the plurality of control decoding candidates associated with a first set of aggregation levels in a first transmit time interval of a subframe; and monitoring a second set of the plurality of control decoding candidates associated with a second set of aggregation levels in a second transmit time interval of the subframe; wherein the first of the plurality of control decoding candidates and the second set of the plurality of control decoding candidates are different at least in one control decoding candidate, and wherein the first set of aggregation levels are different than the second set of aggregation levels; said method characterized in that the first set and second set of the plurality of control decoding candidates are configured based on at least one selected from an index associated with the first transmit time interval within the subframe, and an index associated with the second transmit time interval within the subframe; wherein the index associated with at least one selected from the first transmit time interval and the second transmit time interval within the subframe is selected from: a shortened transmit time interval index within the subframe, where a shortened transmit time interval index is associated with a transmit time interval with a length shorter than a length of a subframe; and a slot index corresponding to at least one selected from the first transmit time interval and the second transmit time interval of the subframe. receiving a configuration that configures a plurality of control decoding candidates; monitoring a first set of the plurality of control decoding candidates associated with a first set of aggregation levels in a first transmit time interval of a subframe; and monitoring a second set of the plurality of control decoding candidates associated with a second set of aggregation levels in a second transmit time interval of the subframe; wherein the first of the plurality of control decoding candidates and the second set of the plurality of control decoding candidates are different at least in one control decoding candidate, and wherein the first set of aggregation levels are different than the second set of aggregation levels; said method characterized in that the first set and second set of the plurality of control decoding candidates are configured based on at least one selected from an index associated with the first transmit time interval within the subframe, and an index associated with the second transmit time interval within the subframe; wherein the index associated with at least one selected from the first transmit time interval and the second transmit time interval within the subframe is selected from: a shortened transmit time interval index within the subframe, where a shortened transmit time interval index is associated with a transmit time interval with a length shorter than a length of a subframe; and a slot index corresponding to at least one selected from the first transmit time interval and the second transmit time interval of the subframe. a shortened transmit time interval index within the subframe, where a shortened transmit time interval index is associated with a transmit time interval with a length shorter than a length of a subframe; and a slot index corresponding to at least one selected from the first transmit time interval and the second transmit time interval of the subframe.