Method and device for transmitting/receiving NDP feedback report response in wireless LAN system

An apparatus for a station (STA), the apparatus comprising

• at least one transceiver;
• and
• at least one processor coupled with the at least one transceiver,
• wherein the at least one processor is configured to:
• receive a null data packet (NDP) feedback report poll (NFRP) trigger frame requesting an NDP feedback report response from an access point (AP);
• and
• transmit a physical layer protocol data unit (PPDU) carrying the NDP feedback report response to the AP, in response to the NFRP trigger frame,
• wherein the PPDU is transmitted in a frequency resource corresponding to a tone set index assigned to the STA,
• wherein, based on one or more subchannels in a bandwidth of the PPDU being punctured, a plurality of tone set indices corresponding to portions of the bandwidth excluding the one or more punctured subchannels are determined, and
• wherein the tone set index assigned to the STA is indicated as one of the plurality of tone set indices.

An apparatus for an access point (AP), the apparatus comprising:

• at least one transceiver;
• and
• at least one processor coupled with the at least one transceiver,
• wherein the at least one processor is configured to:
• transmit a null data packet (NDP) feedback report poll (NFRP) trigger frame requesting an NDP feedback report response to a station (STA);
• and
• receive a physical layer protocol data unit (PPDU) carrying the NDP feedback report response from the STA, in response to the NFRP trigger frame,
• wherein the PPDU is received in a frequency resource corresponding to a tone set index assigned to the STA,
• wherein, based on one or more subchannels in a bandwidth of the PPDU being punctured, a plurality of tone set indices corresponding to portions of the bandwidth excluding the one or more punctured subchannels are determined, and
• wherein the tone set index assigned to the STA is indicated as one of the plurality of tone set indices.