Wireless communications in a system that supports a first subframe type having a first symbol duration and a second subframe type having a second symbol duration

An apparatus for wireless communications, comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory, the instructions being executable by the processor to:
• configure a first latency mode and a second latency mode in a wireless communications network, wherein transmissions in the first latency mode have a first round trip time (RTT) between transmission and acknowledgment of receipt of the transmission, and transmissions in the second latency mode have a second RTT that is less than the first RTT;
• and
• configure a resource for user equipment (UE) operating in the wireless communications network to trigger a switch from use of the first latency mode in a frame having a plurality of subframes to use of the second latency mode within the frame, wherein the resource to trigger the switch comprises one of a dedicated frequency division multiplexing (FDM) subband, a dedicated component carrier, a predefined group of resource blocks transmitted using the first latency mode, or one or more symbols in a time division multiplexing subframe transmitted using the first latency mode.