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

Kiseon Ryu

Sunwoong Yun

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

Jimin Kim

Hyunsoo Koo

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.

Technique for configuring preamble in wireless communication system

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

In a wireless local area network (LAN) system, a sensing session comprises a first burst and a second burst, wherein, in the first burst, a transmitting STA may transmit a first sounding signal to a first receiving STA and a second receiving STA. In the first burst, the transmitting STA may receive, from the first receiving STA, a first feedback frame comprising first channel information between the transmitting STA and the first receiving STA, and, from the second receiving STA, a second feedback frame comprising channel information between the transmitting STA and the second receiving STA. In the second burst, the transmitting STA may receive a second sounding signal from the first receiving STA. In the second burst, the transmitting STA may receive, from the second receiving STA, a third feedback frame comprising channel information between the first receiving STA and the second receiving STA.

Method and device for carrying out sensing in wireless LAN system

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.

Method and device for setting PPDU type in wireless LAN system

Proposed are a method and apparatus for configuring 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 160 MHz channel and a second PPDU for a secondary 160 MHz channel. The first PPDU includes a first indicator including information about a bandwidth of the first PPDU. The second PPDU includes a second indicator including information about a bandwidth of the second PPDU. The first PPDU is a PPDU that supports an HE wireless LAN system, and the second PPDU is a PPDU that supports an EHT wireless LAN system.

Method and apparatus for configuring A-PPDU in wireless LAN system

One example according to the present specification relates to a technique related to configuration of a preamble in a wireless LAN (WLAN) system. According to various embodiments, a receiving STA may receive an NDP frame. The NDP frame may comprise a first signal field and a second signal field. The first signal field may comprise first information about a PHY version. The second signal field may comprise second information about transmission of a PPDU, set on the basis of the first information. The receiving STA may perform channel sounding on the basis of the NDP frame.

Method for configuring preamble in wireless communication system

A method and a device for receiving a PPDU in a wireless LAN system are presented. Particularly, a reception STA receives a PPDU from a transmission STA through a broadband and decodes the PPDU. The broadband is the 320 MHz band or 160+160 MHz band. 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 the sequence in which phase rotation is applied to the sequence in which a second STF sequence is repeated. The second STF sequence is the STF sequence for the 160 MHz band defined in the 802.11ax wireless LAN system. The first sequence is the sequence in which a preset M sequence is repeated, and is defined as {M1−M0−M1−M0−M−1M0−M1−M0−M−1M0M−1M0M1−M0M−1M}*(1+j)/sqrt(2).

Method and device for receiving PPDU through broadband in wireless LAN system

A method and an apparatus for transmitting an EHT PPDU to a WLAN system are proposed. Specifically, a transmitter generates and transmits an EHT PPDU to a receiver through a 320 MHz band from which an 80 MHz band is punctured. The EHT PPDU includes a legacy preamble and an EHT field. The legacy preamble includes an L-STF and an L-LTF. The legacy preamble is generated by applying a first phase rotation value. The first phase rotation value is obtained on the basis of a second phase rotation value and a third phase rotation value. The second phase rotation value is a phase rotation value that repeats a phase rotation value defined for the 80 MHz band in an 802.11ax system. The third phase rotation value is a phase rotation value defined in unit of the 80 MHz band in the 320 MHz band on the basis of an optimal PAPR of the L-STF and L-LTF. The first phase rotation value is [1 1 −1 −1 −j −j j j 1 1 −1 −1 −j −j j j].

Method and apparatus for applying phase rotation in broadband with 80MHz based preamble puncturing performed in WLAN system

Proposed are a method and an apparatus for receiving a PPDU in a wireless LAN system. Specifically, a reception STA receives a PPDU from a transmission STA through a first band, and decodes the PPDU. The PPDU includes a preamble and a data field. The first band includes first to fourth sub-blocks. The data field includes first data for first and second sub-blocks and second data for third and fourth sub-blocks. The second data is generated on the basis of data obtaining by duplicating the first data and applying phase rotation to the third sub-block.

Method and apparatus for receiving PPDU in which data is duplicated and to which phase rotation is applied in wireless LAN system

In a wireless local area network (LAN) system, a transmission STA may generate capability information related to WLAN sensing. The capability information may comprise a common part and an individual part. The common part may comprise sensing support band information including information related to whether WLAN sensing performed in a sub 7 GHz band is supported, and information related to whether WLAN sensing performed in a 60 GHz band is supported. The individual part may comprise, on the basis of the sensing support band information, at least one of capability information for WLAN sensing performed in the sub 7 GHz band, and capability information for WLAN sensing performed in the 60 GHz band. The transmission STA may transmit the capability information to a reception STA.

Method and device for performing sensing 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 from a transmission STA through a broadband and decodes the PPDU. The PPDU includes a control field and a data field. If the broadband is a 160/80+80 MHz band that includes a primary 80 MHz channel and a secondary 80 MHz channel, the data field is received via a second multiple RU in which 484-RU and a first multiple RU are aggregated. The first multiple RU is a multiple RU in which first and second 26-RUs, 52-RUs and 106-RUs are aggregated. The second multiple RU is allocated in the primary 80 MHz channel and the secondary 80 MHz channel.

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

Presented are a method and a device for receiving a PPDU in a wireless LAN system. Particularly, a receiving STA receives a PPDU from a transmitting STA through a broadband, and decodes the PPDU. The PPDU includes a legacy preamble and first and second signal fields. The legacy preamble and the first and second signal fields are generated on the basis of a first phase rotation value. The first phase rotation value is acquired on the basis of a first preamble puncturing pattern of the broadband. The first preamble puncturing pattern includes the pattern in which 40 MHz or 80 MHz band is punctured in the broadband, when the broadband is a 320 MHz band. The first phase rotation value is [1 −1 −1 −1 1 −1 −1 −1 −1 1 1 1 −1 1 1 1].

A method and a device for receiving a PPDU in a wireless LAN system are presented. Particularly, a receiving STA receives a PPDU from a transmitting STA through a broadband and decodes the PPDU. The PPDU includes a first signal filed and a data field. A 160 MHz band includes first and second 80 MHz segments if the broadband is the 160 MHz band. The first 80 MHz segment includes first to fourth 20 MHz channels, and the second 80 MHz segment includes fifth to eighth 20 MHz channels. The first signal field includes first and second signal CCs for the first 80 MHz segment and includes third and fourth signal CCs for the second 80 MHz segment.

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Seoul, South Korea

Dongguk Lim