US Patent 12127200 Scheduling of a primary cell from a secondary cell

A wireless device may receive a first configuration parameter of a primary cell indicating that a first secondary cell is a scheduling cell for the primary cell. Based on the first secondary cell being deactivated, the wireless device may receive a first DCI based on monitoring one or more first search spaces of the primary cell and may transmit or receive a first TB via the primary cell based on the first DCI. Based on the first secondary cell being activated, the wireless device may receive a second DCI based on monitoring one or more second search spaces of the first secondary cell and may transmit or receive a second TB via the primary cell based on the second DCI.