Wireless communication method using trigger information, and wireless communication terminal

A base wireless communication terminal that wirelessly communicates with a plurality of wireless communication terminal, the base wireless communication terminal comprising:

• a transceiver;
• and
• a processor,
• wherein the processor is configured to:
• generate a trigger MPDU including trigger information which triggers an uplink (UL) transmission of a wireless communication terminal to the base wireless communication terminal, and includes information on a resource unit (RU) allocated for the UL transmission of the wireless communication terminal and information on a length of the UL transmission,
• transmit the PPDU including an Aggregate-MAC Protocol Data Unit (A-MPDU) comprising the trigger MPDU including the trigger information and one or more data MPDUs including data to the wireless communication terminal by using the transceiver, and
• receive ACK information indicating that the data is received, wherein the ACK information is transmitted from the wireless communication terminal based on the information on the RU and the information on the length of the UL transmission,
• wherein the A-MPDU is capable of including a plurality of trigger MPDUs including the trigger information.

A wireless communication terminal that wirelessly communicates with a base wireless communication terminal, the wireless communication terminal comprising:

• a transceiver;
• and
• a processor,
• wherein the processor is configured to:
• receive, from the base wireless communication terminal, a PLCP Protocol Data Unit (PPDU) including an Aggregate-MAC Protocol Data Unit (A-MPDU) which includes a trigger MPDU including trigger information and one or more data MPDUs including data by using the transceiver, wherein the trigger information triggers an uplink (UL) transmission of the wireless communication terminal to the base wireless communication terminal, and includes information on a resource unit (RU) allocated for the UL transmission of the wireless communication terminal and information on a length of the UL transmission,
• obtain the trigger MPDU from the A-MPDU, and
• transmit ACK information indicating that the data is received to the base wireless communication terminal based on the information on the RU and the information on the length of the UL transmission,
• wherein the A-MPDU is capable of including a plurality of trigger MPDUs including the trigger information.

A method of operating a wireless communication terminal that wirelessly communicates with a base wireless communication terminal, the method comprising:

• receiving, from the base wireless communication terminal, a PLCP Protocol Data Unit (PPDU) including an Aggregate-MAC Protocol Data Unit (A-MPDU) which includes a trigger MPDU including trigger information and one or more data MPDUs including data, wherein the trigger information triggers an uplink (UL) transmission of the wireless communication terminal to the base wireless communication terminal, and includes information on a resource unit (RU) allocated for the UL transmission of the wireless communication terminal and the information on a length of the UL transmission,
• obtaining the trigger MPDU from the A-MPDU, and
• transmitting ACK information indicating that the data is received to the base wireless communication terminal based on the information on the RU and the information on the length of the UL transmission,
• wherein the A-MPDU is capable of including a plurality of trigger MPDUs including the trigger information.