Wireless LAN system, wireless LAN base station, wireless LAN terminal, and communication method

A communication method of a wireless local area network (LAN) base station configured to perform uplink multi-user communication with a plurality of wireless LAN terminals, the communication method comprising:

• transmitting a trigger frame to the plurality of wireless LAN terminals, the trigger frame including information and a base value, the information indicating a resource unit for random access, and the base value being a signaling parameter of an unassociation identifier (UAID) indicating an unassociated wireless LAN terminal;
• receiving uplink data from the unassociated wireless LAN terminal, the uplink data being transmitted by using the resource unit for random access indicated by the information included in the trigger frame;
• and
• generating the UAID by using the base value of the UAID and the information indicating the order of the resource unit for random access among resource units for random access, the resource unit for random access being used to transmit the uplink data.

A communication method of a wireless local area network (LAN) terminal of a plurality of wireless LAN terminals configured to perform uplink multi-user communication with the wireless LAN base station, wherein

• an association identifier (AID) indicating an associated wireless LAN terminal includes a specific bit generated by using a basic service set (BSS) color bit (BCB), and
• the communication method comprises:
• generating an unassociation identifier (UAID) indicating the wireless LAN terminal, in order to include the specific bit or a processed bit obtained by processing the specific bit in a case where the wireless LAN terminal is an unassociated wireless LAN terminal;
• and
• using a bit to be distinguished from the AID as a bit other than the specific bit of the UAID in a case where the wireless LAN terminal is the unassociated wireless LAN terminal and the specific bit is included in the UAID.

A communication method of a wireless local area network (LAN) terminal of a plurality of wireless LAN terminals configured to perform uplink multi-user communication with the wireless LAN base station, the communication method comprising:

• receiving a trigger frame from the wireless LAN base station, the trigger frame including information and a base value, the information indicating a resource unit for random access, and the base value being a signaling parameter of an unassociation identifier (UAID) indicating an unassociated wireless LAN terminal;
• generating the UAID indicating the wireless LAN terminal by using the base value of the UAID included in the trigger frame, and information indicating an order of a resource unit for random access among resource units for random access in a case where the wireless LAN terminal is the unassociated wireless LAN terminal, the resource unit for random access being indicated by the information included in the trigger frame;
• and
• transmitting uplink data to the wireless LAN base station by using the resource unit for random access indicated by the information included in the trigger frame in a case where the wireless LAN terminal is the unassociated wireless LAN terminal.