Lg Electronics Inc.

Spigen Korea Co., Ltd.

Eunsung Park

Jinsoo Choi

Dongguk Lim

Jinyoung Chun

Hangyu Cho

Jinmin Kim

Wookbong Lee

Jeongki Kim

Sunwoong Yun

Insun Jang

Kiseon Ryu

Sungjin Park

Suhwook Kim

Kyungtae Jo

Jiwon Kang

Kilbom Lee

Dong Kyung Choi

Taewon Song

Namyeong Kim

Jihye Kang

Jinsam Kwak

Inkyu Lee

The present specification presents a method and device for configuring a special user information field in a trigger frame even when triggering only an HE TB PPDU in a wireless LAN system. Specifically, a reception STA receives a trigger frame from a transmission STA. The reception STA transmits an HE TB PPDU to the transmission STA. A special user information field comprises a PHY version ID subfield, a second bandwidth field, fifth and sixth spatial reuse fields, a U-SIG disregard and validate subfield, and a reserved subfield. A first bandwidth field comprises information about a bandwidth at which the HE TB PPDU is transmitted. If the bandwidth at which the HE TB PPDU is transmitted is 20 MHZ, then the fifth and sixth spatial reuse fields are set to the value of a first spatial reuse field.

Method and device for configuring special user information field in trigger frame even when triggering only HE TB PPDU in wireless LAN system

A physical protocol data unit (PPDU) to be used for 320 MHz transmission in a wireless local area network system, and the long training field (LTF) of the PPDU is defined through an LTF sequence. The LTF sequence relates to a 2x LTF sequence and is defined as follows: {first sequence, zero sequence, second sequence, zero sequence, third sequence, zero sequence, forth sequence}.

2X LTF sequence for 320 MHz

Proposed are a method and a device for receiving a PPDU in a wireless LAN system. Specifically, a receiving STA receives a PPDU from a transmitting STA through a first band, and decodes the PPDU. The PPDU comprises a control field and a data field. When the first band is an 80 MHz band comprising first to fourth 20 MHz subchannels, the first 20 MHz subchannel comprises first multiple RUs in which a first 26RU and a first 52RU are aggregated. The first 26RU is an RU located in the middle of the first 20 MHz subchannel. The first 52RU is an RU having a frequency lower than that of the first 26RU, and which is adjacent to the first 26RU.

Method and device for receiving PPDU through multiple RUs in wireless LAN system

A wireless local area network (LAN) system wherein a transmitting station (STA) may generate a physical protocol data unit (PPDU), the transmitting STA may transmit the PPDU over a 240 MHz band, the PPDU may include a long training field (LTF) signal, and the LTF signal may be generated on the basis of an LTF sequence for the 240 MHz band.

1X LTF sequence for 240MHz

Proposed are a method and apparatus for receiving a PPDU in a wireless LAN system. Specifically, a reception STA receives a PPDU from a transmission STA via a broadband and decodes the PPDU. The PPDU includes a control field and a data field. When the broadband is a band of 320/160+160 MHz including a primary channel of 160 MHz and a secondary channel of 160 MHz, the data field is received via a first multiple RU in which a 996-RU and a 484-RU are aggregated. The first multiple RU is allocated within the primary channel of 160 MHz or the secondary channel of 160 MHz.

Method and apparatus for receiving PPDU via multiple RU in wireless LAN system

Proposed are a method and a device for receiving an A-PPDU in a wireless LAN system. Specifically, a reception STA receives an A-PPDU from a transmission STA and decodes the A-PPDU. The A-PPDU includes a first PPDU for a primary 80 MHz channel and a second PPDU for a secondary 80 MHz channel. The first PPDU includes a first L-STF, a first L-LTF, a first L-SIG, a first RL-SIG, HE-SIG-A, HE-SIG-B, and first data. The second PPDU includes a pre-padding field, a second L-STF, a second L-LTF, a second L-SIG, a second RL-SIG, U- SIG, EHT-SIG, and second data. The pre-padding field consists of a sequence having no cross- correlation with the first L-STF and the first L-LTF.

Method and device for receiving A-PPDU in wireless LAN system

According to various embodiments, a reception STA may receive a PPDU. The PPDU may comprise a first signal field and a second signal field. The first signal field may comprise a plurality of first content channels and a plurality of second content channels. The second signal field may comprise a third content channel and a fourth content channel.

Technique for configuring preamble in wireless communication system

In a wireless local area network (WLAN) system, a transmission STA can transmit a PPDU via a 320 MHz channel, and a Medium Access Control (MAC) signal may be generated for the PPDU. The MAC signal may include puncturing pattern information and channel center frequency segment (CCFS) information for a 320 MHz band. The CCFS information may include a first CCFS field related to channel center frequency (CCF) information of a primary 160 MHz channel, and a second CCFS field related to CCF information of a 320 MHz channel.

Puncturing-based 240 MHz transmission

Proposed are a method and an apparatus for receiving an A-PPDU in a wireless LAN system. Specifically, a reception STA receives an A-PPDU from a transmission STA and decodes the A-PPDU. The A-PPDU includes a first PPDU for a primary 80 MHz channel, and a second PPDU for a secondary 80 MHz channel. The first PPDU includes a first L-SIG, a first RL-SIG, an HE-SIG-A, an HE-SIG-B, and first data. The second PPDU includes a first L-SIG, a first RL-SIG, an HE-SIG-A, an HE-SIG-B, a second L-SIG, a second RL-SIG, a U-SIG, an EHT-SIG, and second data. The HE-SIG-A includes an indicator of the A-PPDU.

Method and apparatus for configuring indicator for channel switching and structure of A-PPDU in wireless LAN system

A method and device for transmitting an EHT PPDU in a wireless LAN system is proposed. Specifically, a transmission STA generates an STF signal for a 320 MHz band. The transmission STA transmits an EHT PPDU including the STF signal to a reception STA. The STF signal is generated on the basis of an EHT STF sequence. The EHT STF sequence is a first sequence in which preconfigured sequence M 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). Sqrt( ) represents a square root. Preconfigured sequence M is defined as M={−1, −1, −1, 1, 1, 1, −1, 1, 1, 1, −1, 1, 1, −1, 1}.

Method and device for transmitting EHT PPDU in wireless LAN system

The present disclosure proposes a transmission and reception method for a PPDU, which is applicable in a next-generation wireless LAN system. According to an embodiment of the present disclosure, proposed is a method for notifying, via a bandwidth field of a PPDU including an ER preamble, a transmission method being applied to the PPDU. According to another embodiment of the present disclosure, proposed is a method in which transmission methods being applied to a PPDU including an ER preamble are different from each other according to a value indicated by a bandwidth field of the PPDU.

Transmission and reception method for PPDU including ER preamble, and device using same method

Proposed are a method and a device for receiving a PPDU in a wireless LAN system. Specifically, a reception STA receives a PPDU from a transmission STA through a broadband and decodes the PPDU. The PPDU includes an STF signal. The STF signal is generated on the basis of a first STF sequence for the broadband. The first STF sequence is obtained on the basis of a first preamble puncturing pattern of the broadband. When the broadband is a 320 MHz band, the first preamble puncturing pattern includes a pattern in which a 40 MHz or 80 MHz band is punctured in the broadband. The first STF sequence is a sequence including an M sequence and is defined as {M 0 −M 0 M 0 −M 0 M 0 −M 0 −M 0 M 0 M 0 −M 0 −M 0 M 0 −M 0 M 0 M 0 −M}*(1+j)/sqrt(2).

Method and device for setting 1X EHT-STF sequence by repeating STF sequence for 40 MHz band in wireless LAN system

According to various embodiments, a reception STA may receive a physical layer protocol data unit (PPDU) including a first signal field, a second signal field, and a data field. The PPDU may be configured to be transmitted to a single user. The second signal field may consist of one content channel, and the one content channel may be duplicated in a first bandwidth in units of a second bandwidth.

A transmission and reception PPDU according to the present specification may include a first control signal field and a second control signal field. Overflowed information from the first control signal field may include a first encoding block of a common field of the second control signal field. In addition, the common field of the second control signal field may include various numbers of encoding blocks and various numbers of RU allocation subfields on the basis of the characteristics of the transmission and reception PPDU. In addition, the overflowed information may be included in a plurality of content channels using various methods.

Method and device for forming signal field including control information

Proposed are a method and device for receiving a PPDU in a wireless LAN system. Specifically, reception STAs receive a PPDU from a transmission STA, and decode the PPDU. The PPDU includes a legacy preamble, an EHT preamble, and a data field. The EHT preamble includes first and second fields. The first field includes information about the type of the PPDU. The second field includes information about the number of the reception STAs to receive the PPDU.

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Seoul, South Korea

Eunsung Park