Transmission preemption control for enhanced component carriers

A method for wireless communication by a first user equipment, UE (115), in communication with a base station (105), comprising: receiving radio resource control signaling from the base station (105) by configuring the first UE (115) for monitoring preferential acquisition of downlink transmissions; receiving (1405) a downlink grant allocating resources of one or more symbols in a variable length downlink transmission time interval, TTI, for a transmission to the first UE (115); monitor (1410) one or more of the one or more symbols based on the configuration for a control signal indicating that a portion of the resources allocated by the downlink grant should be preemptive for a transmission to a second UE ( 115); and determining (1415) whether to cancel a remaining portion of the resources allocated by the downlink grant based, at least in part, on the control signal, wherein canceling the remaining portion of the resources comprises not operating with all resources allocated by downlink grant.