Method and apparatus for receiving PPDU by configuring multiple primary channels in wireless LAN system

A receiving station (STA) in a wireless local area network (WLAN) system, the receiving STA comprising:

• a memory;
• a transceiver;
• and
• a processor being operatively connected to the memory and the transceiver,
• wherein the processor is configured to:
• receive control information from a transmitting STA;
• and
• receive a Physical Protocol Data Unit (PPDU) from the transmitting STA based on the control information,
• wherein the control information includes an Ultra High Reliability (UHR) Operation element,
• wherein the UHR Operation element includes a Multiple Primary Channel element,
• wherein the Multiple Primary Channel element includes first and second fields,
• wherein the first field includes information on a number of a first primary 20 MHz channel and a second primary 20 MHz channel,
• wherein the second field includes information on a location of the second primary 20 MHz channel, and
• wherein the location of the second primary 20 MHz channel includes information on a cyclically shifted position based on the first primary 20 MHz channel.

A method in a wireless local area network (WLAN) system, the method comprising:

• obtaining, by a transmitting station (STA), control information;
• generating, by the transmitting STA, a Physical Protocol Data Unit (PPDU) based on the control information;
• and
• transmitting, by the transmitting STA, the PPDU to a receiving STA,
• wherein the control information includes an Ultra High Reliability (UHR) Operation element,
• wherein the UHR Operation element includes a Multiple Primary Channel element,
• wherein the Multiple Primary Channel element includes first and second fields,
• wherein the first field includes information on a number of a first primary 20 MHz channel and a second primary 20 MHz channel,
• wherein the second field includes information on a location of the second primary 20 MHz channel, and
• wherein the location of the second primary 20 MHz channel includes information on a cyclically shifted position based on the first primary 20 MHz channel.