Techniques and apparatuses for downlink control channel design using a top to bottom search space

A user equipment (UE) for wireless communication, comprising:

• a memory;
• and
• one or more processors coupled to the memory, the memory and the one or more processors configured to:
• receive a control channel that includes a plurality of candidate samples having at least two aggregation levels;
• scan a set of candidate samples, of the plurality of candidate samples, to identify a relevant sample associated with the UE, wherein the scanning is performed on the set of candidate samples in an order from a higher aggregation level of the at least two aggregation levels to a lower aggregation level of the at least two aggregation levels, wherein a candidate sample associated with a highest aggregation level includes an entirety of the control channel;
• and
• decode the relevant sample.

A user equipment (UE) for wireless communication, comprising:

• a memory;
• and
• one or more processors coupled to the memory, the memory and the one or more processors configured to:
• receive a control channel that includes a plurality of candidate samples having at least two aggregation levels;
• scan a set of candidate samples, of the plurality of candidate samples, to identify a relevant sample associated with the UE, wherein the scanning is performed on the set of candidate samples in an order from a higher aggregation level of the at least two aggregation levels to a lower aggregation level of the at least two aggregation levels, wherein a candidate sample of the higher aggregation level includes multiple, different candidate samples of the lower aggregation level;
• and
• decode the relevant sample.