A method for early termination of transmission is disclosed. The method includes: receiving downlink (DL) data from a DL channel during a transmission time interval (TTI); attempting to decode the received DL data before receiving all DL data of the TTI; and transmitting an early termination indicator (ETI) in an uplink (UL) slot of a UL radio frame to terminate transmission of the DL data during the TTI based on a successful decode, wherein at least one symbol of the UL slot is replaced by the ETI.