Patent ID: 11533133

Abstract:
A method for an STA to transmit or receive a frame in a WLAN, according to one embodiment of the present invention, comprises the steps of: receiving a first HARQ trigger frame that triggers transmission of an A-PHDU into which PHDUs that are PHY data transmission units for a HARQ process are combined; transmitting at least one PHDU within the A-PHDU on the basis of the first HARQ trigger frame at the timing designated for the STA; and retransmitting the at least one PHDU or transmitting a new PHDU according to reception of a second HARQ trigger frame, wherein the first HARQ trigger frame includes timing offset information between the STA and another STA transmitting the PHDU within the A-PHDU, and the STA may determine the timing designated for the STA by using the timing offset information.