Method and apparatus for receiving eht ppdu in wireless lan system

A method of receiving an extremely high throughput (EHT) physical protocol data unit (PPDU) in a wireless local area network (WLAN) system, the method comprising:

• receiving, by a receiving station (STA), the EHT PPDU including a short training field (STF) signal from a transmitting STA through a 320 MHz band or a 160+160 MHz band;
• and
• decoding, by the receiving STA, the EHT PPDU,
• wherein the STF signal is generated based on an EHT STF sequence for the 320 MHz band or the 160+160 MHz band,
• wherein the EHT STF sequence for the 320 MHz band is a first sequence in which a pre-set M-sequence is repeated, and is defined as:
• {M −1 M 0−M −1 M 0 M −1 M 0−M −1 M 0 M −1 M 0 M −1 −M 0−M 1 −M 0−M −1 M}*(1+j)/sqrt(2), where sqrt( ) denotes a square root, and
• wherein the pre-set M-sequence is defined as:
• M
• =
• {
• -
• 1
• ,
• ⁢
• -
• 1
• ,
• ⁢
• -
• 1
• ,
• 1
• ,
• 1
• ,
• 1
• ,
• ⁢
• -
• 1
• ,
• 1
• ,
• ⁢
• 1
• ,
• ⁢
• 1
• ,
• ⁢
• -
• 1
• ,
• ⁢
• 1
• ,
• ⁢
• 1
• ,
• ⁢
• -
• 1
• ,
• ⁢
• 1
• }
• .

A receiving station (STA) for receiving an extremely high throughput (EHT) physical protocol data unit (PPDU) in a wireless local area network (WLAN) system, the receiving STA comprising:

• a memory;
• a transceiver;
• and
• a processor operably coupled with the memory and the transceiver, wherein the processor is configured to:
• receive the EHT PPDU including a short training field (STF) signal from a transmitting STA through a 320 MHz band or a 160+160 MHz band;
• and
• decode the EHT PPDU,
• wherein the STF signal is generated based on an EHT STF sequence for the 320 MHz band or the 160+160 MHz band,
• wherein the EHT STF sequence for the 320 MHz band is a first sequence in which a pre-set M-sequence is repeated, and is defined as:
• {M −1 M 0 −M −1 M 0 M −1 M 0 −M −1 M 0 M −1 M 0 M −1 −M 0−M 1 −M 0 −M −1 M}*(1+j)/sqrt(2), where sqrt( ) denotes a square root, and
• wherein the pre-set M-sequence is defined as:
• M
• =
• {
• -
• 1
• ,
• ⁢
• -
• 1
• ,
• ⁢
• -
• 1
• ,
• 1
• ,
• 1
• ,
• 1
• ,
• ⁢
• -
• 1
• ,
• 1
• ,
• ⁢
• 1
• ,
• ⁢
• 1
• ,
• ⁢
• -
• 1
• ,
• ⁢
• 1
• ,
• ⁢
• 1
• ,
• ⁢
• -
• 1
• ,
• ⁢
• 1
• }
• .

A method of transmitting an extremely high throughput (EHT) physical protocol data unit (PPDU) in a wireless local area network (WLAN) system, the method comprising:

• generating, by a transmitting station (STA), a short training field (STF) signal;
• and
• transmitting, by the transmitting STA, the EHT PPDU including the STF signal to a receiving STA through a 320 MHz band or a 160+160 MHz band,
• wherein the STF signal is generated based on an EHT STF sequence for the 320 MHz band or the 160+160 MHz band,
• wherein the EHT STF sequence for the 320 MHz band is a first sequence in which a pre-set M-sequence is repeated, and is defined as:
• {M −1 M 0 −M −1 M 0 M −1 M 0 −M −1 M 0 M −1 M 0 M −1 −M 0 −M 1 −M 0 −M −1 M}*(1+j)/sqrt(2), where sqrt( ) denotes a square root, and
• wherein the pre-set M-sequence is defined as:
• M
• =
• {
• -
• 1
• ,
• ⁢
• -
• 1
• ,
• ⁢
• -
• 1
• ,
• 1
• ,
• 1
• ,
• 1
• ,
• ⁢
• -
• 1
• ,
• 1
• ,
• ⁢
• 1
• ,
• ⁢
• 1
• ,
• ⁢
• -
• 1
• ,
• ⁢
• 1
• ,
• ⁢
• 1
• ,
• ⁢
• -
• 1
• ,
• ⁢
• 1
• }
• .