Method and device for receiving PPDU through wide band in wireless LAN system
Proposed are a method and device for receiving a PPDU in a wireless LAN system. Specifically, a reception STA receives a PPDU through a wide band from a transmission STA, and decodes the PPDU. The wide band is a 320/160+160 MHz band configured from a first band and a second band. When the first band is an 80 MHz band in which puncturing is performed in units of 20 MHz, the first band includes a first RU which is an aggregate of a 484RU and a 242RU. The second band is a 240 MHz band excluding the first band in the wide band, and includes a second RU which is an aggregate of three 996 RUs. The PPDU includes a control field and a data field. The data field is received via a first multi-RU which is an aggregate of the first and second RUs.
1. A method in a wireless Local Area Network (LAN) system, the method comprising:
receiving, by a receiving station (STA), a Physical Protocol Data Unit (PPDU) from a transmitting STA; and
decoding, by the receiving STA, the PPDU,
wherein the PPDU includes a data field,
wherein for a non-orthogonal frequency division multiple access (non-OFDMA) 80 MHz PPDU, a 484+242-tone multiple resource unit (MRU) is only defined based on a 20 MHz subchannel being punctured,
wherein the 484+242 MRU is obtained by a 484-tone resource unit (RU) and a 242-tone RU in the non-OFDMA 80 MHz PPDU, and
wherein data subcarriers of the 484+242 MRU in the data field consist of a union of data subcarriers of the 484-tone RU and the 242-tone RU that make up the 484+242 MRU.
2. The method of claim 1 , wherein
pilot subcarriers of the 484+242 MRU in the data field consist of a union of pilot subcarriers of the 484-tone RU and the 242-tone RU that make up the 484+242 MRU.
3. The method of claim 1 , wherein
four 484+242 MRUs in the non-OFDMA 80 MHz PPDU is allowed,
wherein the four 484+242 MRUs includes first to fourth 484+242 MRUs,
wherein the first 484+242 MRU is defined based on a first 20 MHz subchannel being punctured,
wherein the second 484+242 MRU is defined based on a second 20 MHz subchannel being punctured,
wherein the third 484+242 MRU is defined based on a third 20 MHz subchannel being punctured,
wherein the fourth 484+242 MRU is defined based on a fourth 20 MHz subchannel being punctured.
4. A receiving station (STA) in a wireless Local Area Network (LAN), the receiving STA comprising:
a memory;
a transceiver; and
a processor operatively coupled to the memory and the transceiver,
wherein the processor is configured to:
receive a Physical Protocol Data Unit (PPDU) from a transmitting STA; and
decode the PPDU,
wherein the PPDU includes a data field,
wherein for a non-orthogonal frequency division multiple access (non-OFDMA) 80 MHz PPDU, a 484+242-tone multiple resource unit (MRU) is only defined based on a 20 MHz subchannel being punctured,
wherein the 484+242 MRU is obtained by a 484-tone resource unit (RU) and a 242-tone RU in the non-OFDMA 80 MHz PPDU, and
wherein data subcarriers of the 484+242 MRU in the data field consist of a union of data subcarriers of the 484-tone RU and the 242-tone RU that make up the 484+242 MRU.
5. A method in a wireless Local Area Network (LAN), the method comprising:
generating, by a transmitting station (STA), a Physical Protocol Data Unit (PPDU); and
transmitting, by the transmitting STA, the PPDU to a receiving STA,
wherein the PPDU includes a data field,
wherein for a non-orthogonal frequency division multiple access (non-OFDMA) 80 MHz PPDU, a 484+242-tone multiple resource unit (MRU) is only defined based on a 20 MHz subchannel being punctured,
wherein the 484+242 MRU is obtained by a 484-tone resource unit (RU) and a 242-tone RU in the non-OFDMA 80 MHz PPDU, and
wherein data subcarriers of the 484+242 MRU in the data field consist of a union of data subcarriers of the 484-tone RU and the 242-tone RU that make up the 484+242 MRU.
6. The method of claim 5 , wherein pilot subcarriers of the 484+242 MRU in the data field consist of a union of pilot subcarriers of the 484-tone RU and the 242-tone RU that make up the 484+242 MRU.
7. The method of claim 5 , wherein four 484+242 MRUs in the non-OFDMA 80 MHz PPDU is allowed,
wherein the four 484+242 MRUs includes first to fourth 484+242 MRUs,
wherein the first 484+242 MRU is defined based on a first 20 MHz subchannel being punctured,
wherein the second 484+242 MRU is defined based on a second 20 MHz subchannel being punctured,
wherein the third 484+242 MRU is defined based on a third 20 MHz subchannel being punctured,
wherein the fourth 484+242 MRU is defined based on a fourth 20 MHz subchannel being punctured.
8. A transmitting station (STA) in a wireless Local Area Network (LAN), the transmitting STA comprising:
a memory;
a transceiver; and
a processor operatively coupled to the memory and the transceiver,
wherein the processor is configured to:
generate a Physical Protocol Data Unit (PPDU); and
transmit the PPDU to a receiving STA,
wherein the PPDU includes a data field,
wherein for a non-orthogonal frequency division multiple access (non-OFDMA) 80 MHz PPDU, a 484+242-tone multiple resource unit (MRU) is only defined based on a 20 MHz subchannel being punctured,
wherein the 484+242 MRU is obtained by a 484-tone resource unit (RU) and a 242-tone RU in the non-OFDMA 80 MHz PPDU, and
wherein data subcarriers of the 484+242 MRU in the data field consist of a union of data subcarriers of the 484-tone RU and the 242-tone RU that make up the 484+242 MRU.