Lg Electronics Inc.

Other

University-Industry Cooperation Group of Kyung Hee University

Dongguk Lim

Jinsoo Choi

Eunsung Park

Hangyu Cho

Jinyoung Chun

Jinmin Kim

Wookbong Lee

Jeongki Kim

Insun Jang

Sunwoong Yun

Kiseon Ryu

Jiwoong Jang

Dongcheol Kim

Jiwon Kang

Sungho Park

Kyujin Park

Hyunsoo Ko

Jaehoon Chung

Sunam Kim

Moonil Lee

Sanggook Kim

Suhwook Kim

Seunghyun Kang

Kilbom Lee

Hyunwoo Lee

Namyeong Kim

Yeonghyeon Kwon

Taewon Song

YoungMin Jeong

Hyundong Shin

Hyunsoo Koo

Jimin Kim

The present disclosure proposes a method and a device for configuring a bandwidth field by excluding a bit indicating a specific bandwidth for a TB A-PPDU in a wireless LAN system. Specifically, a reception STA receives a trigger frame from a transmission STA. The reception STA transmits a TB PPDU to the transmission STA via a 320 MHz band. A TB A-PPDU includes an HE TB PPDU for a primary 160 MHz channel and an EHT TB PPDU for a secondary 160 MHz channel. Information on a bandwidth of the TB PPDU does not include a first case where a bandwidth in which the HE TB PPDU is transmitted is 20 MHz and a bandwidth in which the EHT TB PPDU is transmitted is 20 MHz.

Method and device for configuring bandwidth field by excluding bit indicating specific bandwidth of TB A-PPDU in wireless LAN system

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

In a wireless local area network system, a transmission STA may transmit a sensing start frame. The sensing start frame may include information related to the entire band in which WLAN sensing is performed, information related to a reception STA participating in the WLAN sensing, and information related to the number of bands K sensed by each reception STA and the bandwidth of the band sensed by the each reception STA. A transmission STA may transmit a sounding signal to the reception STA. A transmission STA may receive a feedback frame for the sounding signal from the reception STA. The feedback frame may include channel state information for K bands in the order of better channel state among the entire band.

Method and device for performing sensing in wireless LAN system

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

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

The present specification proposes NDPA frame formats supported in a next generation wireless LAN system. According to one embodiment of the present specification, the NDPA frame formats may include common information for sensing. Here, the common information may be included in a special user information field. According to another embodiment of the present specification, the NDPA frame formats may use an existing NDPA frame format.

Enhanced NDPA frame for sensing

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.

Growing community of inventors

Seoul, South Korea

Dongguk Lim