Method and apparatus for performing signaling for reserved sub-band in wireless communication system

A first station (STA) for communicating with a second STA in a wireless local area network (WLAN), the first STA comprising:

• transceiver configured to receive resource allocation information for a plurality of STAs, including the first STA, wherein the first STA communicates with the second STA using orthogonal frequency divisional multiple access (OFDMA) or multi-user multiple input multiple output (MU-MIMO), and to receive data through a frequency band based on the resource allocation information from the second STA;
• and
• a processor connected to the transceiver and configured to process the resource allocation information and the data,
• wherein the frequency band includes a plurality of resource units, the plurality of resource units including a normal resource unit allocated to one STA, and a multi-user resource unit which is a single resource unit allocated to more than one STA among the plurality of STAs,
• wherein the resource allocation information includes:
• a common resource allocation information having a same value for the plurality of STAs, and informing a number of the plurality of resource units and each size of the plurality of resource units based on,
• a multi-user indication for a number of STAs, among the plurality of STAs, to which the multi-user resource unit is allocated, and
• multiple ID fields for corresponding identification information of STA to which the normal resource unit or the multi-user resource unit is allocated.