Method for transmitting frame in wireless lan system and wireless terminal using same

A first wireless device using a method for transmitting a frame in a wireless local area network (WLAN) system, the first wireless device comprising:

• a radio frequency (RF) unit transceiving radio signals;
• and
• a processor being operatively connected to the RF unit,
• wherein the processor is configured:
• in order to transmit a first frame belonging to a first access category among a plurality of access categories, to compare a first time parameter related to an admitted time that is predetermined for the first access category with a second time parameter related to an amount of time having been used for transmission of frames belonging to the first access category,
• to transmit the first frame to a second wireless device based on the comparison result,
• to update the second time parameter after the transmission of the first frame,
• wherein the updated second time parameter corresponds to a sum of a second time parameter and a first required time for transmitting the first frame, and
• when a trigger frame for a multi-user uplink transmission is received from the second wireless device, to perform data processing for a second frame that is to be transmitted as a response to the trigger frame,
• wherein a second required time required for transmitting the second frame is not added to the updated second time parameter.