Determining, at a base station, to modify at least one parameter associated with semi-persistent scheduling (SPS) of traffic for one or more user equipments (UEs). Generating a reconfiguration control message to transmit to the one or more UEs to signal the modification of the at least one parameter. The reconfiguration control message is one of a reconfigured downlink control information (DCI) that modifies an activation DCI or a redesigned format for DCI or MAC-CE. Transmitting the reconfiguration control message to the one or more UEs.