In an example, a base station may configure a first search space comprising monitoring occasions, a set of first candidates, a reference DCI format (e.g., a first DCI format), and a second DCI format. The base station may configure a second search space comprising monitoring occasions, a set of second candidates, and the second DCI format. The base station may determine, for the second DCI format in a search space (e.g., the first search space or the second search space), a target DCI size depending on one or more first cases and/or one or more second cases. The base station may, based on the target DCI size, use the second DCI format for scheduling a URLLC control/data packet on one of the first search space and/or the second search space. For example, the one or more first cases may comprise cases wherein a wireless device may monitor a first DCI based on a first DCI format and a second DCI based on the second DCI format on an active BWP of a cell. The first DCI and the second DCI may have different sizes, in a search space (e.g., the first search space or the second search space) of the active BWP of the cell. A search space may comprise a set of candidates, wherein the wireless device may receive a DCI via a candidate of the set of candidates. The search space may be used interchangeably with a search space set in the specification.