when a first air-interface window associated with a first entity in a time-sensitive network including at least one time-sensitive network entity begins before a primary control channel in a first slot of a plurality of slots, scheduling, by a base station via the primary control channel, a frame from the first entity for data transmission over data channels of an air-interface in a composite network, wherein the composite network includes the time-sensitive network and a wireless network including at least one base station using the air-interface, wherein a wireless transmission over the air-interface is scheduled and transmitted, wherein the air-interface includes the plurality of slots, wherein each slot of the plurality of slots has the primary control channel defined at the beginning of the slot, and a number of secondary control channels defined in each slot after the primary control channel, and a plurality of data channels, each primary control channel defining a slot, each secondary channel defining a mini-slot, the mini-slot being included in the slot defined by the primary control channel, the base station being capable of scheduling the frame via the primary control channel as well as the secondary control channel; and

when the first air-interface window associated with the first entity in the time-sensitive network begins after the primary control channel in the first slot but before a secondary control channel in the first slot, scheduling, by the base station via the secondary control channel, the frame from the first entity for data transmission over data channels of the air-interface, the primary control channel in the first slot starting before the secondary control channel in the first slot.