Method and apparatus for allocating wireless resources according to resource allocation setting in wlan

An access point (AP) that allocates a radio resource according to resource allocation setup in a wireless local area network (WLAN), the AP comprising:

• a radio frequency (RF) unit that transmits and receives a wireless signal;
• and
• a processor operatively coupled to the RF unit,
• wherein the processor transmits resource allocation setup information to a plurality of stations (STAs), allocates a plurality of radio resources to the plurality of STAs, respectively based on first resource units or second resource units based on the resource allocation setup information, transmits a plurality of downlink data to the plurality of STAs through a plurality of radio resources, respectively, and receives channel feedback information of the plurality of radio resources from the plurality of STAs, respectively,
• the resource allocation setup information instructs whether to perform scheduling of each of the plurality of radio resources based on the first resource units or the second resource units, and
• the second resource units have a size larger than that of the first resource units.