a transceiver; and

a processor,

wherein the processor is configured to:

receive a frame for triggering transmission of a physical layer protocol data unit (PPDU) within a restricted target wake time (R-TWT) period from an access point (AP),

wherein the R-TWT period is a period in which a first frame(s) for a low latency traffic identifier (TID)(s) is transmitted with priority over a second frame(s) for a first TID(s) different from the low latency TID(s), and

wherein the second frame(s) for the first TID(s) is allowed to be transmitted within the R-TWT period depending on whether one of the restricted conditions is satisfied, and

transmit a trigger-based (TB) PPDU including the first frame(s) for the low latency TID(s) within the R-TWT period based on the frame,

wherein the first frame(s) is first included in an Aggregate Medium Access Control Protocol Data Unit (A-MPDU) before the second frame(s) when the TB PPDU includes the A-MPDU in which the first frame(s) for the low latency traffic identifier (TID)(s) and the second frame(s) for the first TID(s) are aggregated.