公开(公告)号：US20220361170A1

公开(公告)日：2022-11-10

申请号：US17263040

申请日：2019-07-19

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Sunwoong YUN ,  Dongguk LIM ,  Jinsoo CHOI

IPC: H04W72/04 ,  H04L27/26

Abstract: A method and a device for transmitting a PPDU in a WLAN system are proposed. Specifically, a transmission device generates a PPDU and transmits the PPDU to a reception device through a 320 MHz band. The PPDU includes a legacy preamble and an EHT field, and the legacy preamble includes an L-STF and an L-LTF. The legacy preamble is generated by applying a first phase rotation value or a second phase rotation value. The first phase rotation value is obtained based on a third phase rotation value and a fourth phase rotation value. The third phase rotation value is a phase rotation value obtained by repeating a phase rotation value defined when the PPDU is transmitted in an 80 MHz band four times. The fourth phase rotation value is a phase rotation value defined for each 80 MHz band in the 320 MHz band based on an optimal PAPR of the L-STF.

公开(公告)号：US20220272181A1

公开(公告)日：2022-08-25

申请号：US17742097

申请日：2022-05-11

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Eunsung PARK ,  Sunwoong YUN ,  Jinsoo CHOI

IPC: H04L69/22 ,  H04L27/18

Abstract: An example according to the present disclosure relates to a technique for identifying a wireless LAN (WLAN) packet. For example, when a physical protocol data unit (PPDU) includes a legacy signal field, a field contiguous to the legacy signal field may be used to identify a type of the PPDU. A field contiguous to the legacy signal field may include information indicating that the PPDU is an extreme high throughput (EHT) PPDU. The field contiguous to the legacy signal field may include at least one of information related to a frame format, a transmission opportunity, an STA ID, and/or a bandwidth.

公开(公告)号：US20220103408A1

公开(公告)日：2022-03-31

申请号：US17297957

申请日：2019-12-09

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinsoo CHOI ,  Dongguk LIM ,  Jinmin KIM ,  Sunwoong YUN

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/04

Abstract: Proposed are a method and device for transmitting an EHT PPDU in a wireless LAN system. Specifically, a transmission STA generates an EHT PPDU including an STF signal. The transmission STA transmits the EHT PPDU to a receiving STA. The STF signal is generated on the basis of an EHT STF sequence for a 320 MHz band or 160+160 MHz band. The EHT STF sequence for the 320 MHz band is a first sequence, in which a preset M sequence is repeated, defined as {M 1 −M −M 1 −M −M −1 M 0 −M 1 −M −M −1 M 0 M −1 M 0 M 1 −M 0 M −1 M}*(1+j)/sqrt(2). Sqrt( ) denotes square root. The preset M sequence is defined as M={−1, −1, −1, 1, 1, 1, −1, 1, 1, 1, −1, 1, 1, −1, 1}.

公开(公告)号：US20210218609A1

公开(公告)日：2021-07-15

申请号：US15733876

申请日：2019-05-31

Applicant: LG ELECTRONICS INC.

Inventor： Sunwoong YUN ,  Jinmin KIM ,  Eunsung PARK ,  Dongguk LIM ,  Jinsoo CHOI

IPC: H04L27/26 ,  H04W84/12

Abstract: This specification is related to a long training field (LTF) symbol of a WLAN. The LTF symbol may be generated based on a first LTF generation sequence used for an odd-numbered stream and a second LTF generation sequence used for an even-numbered stream. An even-numbered element of the first LTF generation sequence may be set to zero (0), and an odd-numbered element of the second LTF generation sequence may be set to zero (0). A plurality of LTF symbols for first and third streams may be generated by applying a P mapping matrix to the first LTF generation sequence. A plurality of LTF symbols for a second stream may be generated by applying the P matrix to the second LTF generation sequence.

公开(公告)号：US20200235977A1

公开(公告)日：2020-07-23

申请号：US16844685

申请日：2020-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Sunwoong YUN ,  Jinmin KIM ,  Sungjin PARK ,  Jinsoo CHOI

IPC: H04L27/26

Abstract: The present specification relates to a method for transmitting and receiving signals in a wireless local area network (WLAN) system and an apparatus therefor, the method comprising the steps of: generating a training sub-field consisting of a certain number of orthogonal frequency division multiplexing (OFDM) symbols; and transmitting, to a second STA, a signal including a header field and the training sub-field, wherein the transmitted signal is repeatedly transmitted T times (where T is a natural number) on the basis of information indicated by the header field after a data field.

公开(公告)号：US20240380542A1

公开(公告)日：2024-11-14

申请号：US18783672

申请日：2024-07-25

Applicant: LG Electronics Inc.

Inventor： Eunsung PARK ,  Jinsoo CHOI ,  Dongguk LIM ,  Jinmin KIM ,  Sunwoong YUN

IPC: H04L5/00 ,  H04W84/12

Abstract: Proposed are a method and device for receiving an EHT PPDU on the basis of a tone plan in a wireless LAN system. Specifically, a reception STA receives the EHT PPDU from a transmission STA through a 320 MHz band. The reception STA decodes the EHT PPDU. The EHT PPDU includes a control field and a data field. The control field includes information about a pilot tone. The information about the pilot tone includes allocation information indicating that a first pilot tone for the 320 MHz band is configured by repeating a second pilot tone for an 80 MHz band defined in an 802.11ax wireless LAN system. The first pilot tone is received in a data field on the basis of the allocation information.

公开(公告)号：US20220224381A1

公开(公告)日：2022-07-14

申请号：US17595189

申请日：2019-09-19

Applicant: LG ELECTRONICS INC.

Inventor： Sunwoong YUN ,  Jinmin KIM ,  Eunsung PARK ,  Dongguk LIM ,  Jinsoo CHOI

IPC: H04B7/0417 ,  H04B7/06 ,  H04W16/28

Abstract: Proposed are a method and device for receiving a feedback frame in a wireless LAN system. Specifically, a first STA transmits an NDPA frame to a second STA. The first STA transmits an NDP frame to the second STA. The first STA receives, from the second STA, a feedback frame transmitted on the basis of the NDP frame. The feedback frame includes information about a beamforming feedback matrix. The information about the beamforming feedback matrix includes a first bit for the index difference between quantized phi of adjacent subcarriers, and a second bit for the index difference between quantized psi of the adjacent subcarriers. The adjacent subcarriers are two adjacent subcarriers starting with the first subcarrier among all of the subcarriers. The first subcarrier is either the left edge subcarrier or the right edge subcarrier. The quantized phi and psi are information about beamforming angles.

公开(公告)号：US20220149990A1

公开(公告)日：2022-05-12

申请号：US17310872

申请日：2019-11-22

Applicant: LG ELECTRONICS INC.

Inventor： Jinmin KIM ,  Jinsoo CHOI ,  Dongguk LIM ,  Eunsung PARK ,  Sunwoong YUN

IPC: H04L1/08 ,  H04L1/00

Abstract: In a wireless local area network system, a station (STA) may perform binary convolutional code (BCC) encoding on a data field. The STA may puncture the data field in a first puncturing pattern and may transmit a physical protocol data unit (PPDU) including a control field and the data field. The control field may include control information related to the first puncturing pattern.

公开(公告)号：US20220038315A1

公开(公告)日：2022-02-03

申请号：US17299668

申请日：2019-12-09

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinsoo CHOI ,  Dongguk LIM ,  Jinmin KIM ,  Sunwoong YUN

IPC: H04L27/26 ,  H04B7/0413

Abstract: A method and apparatus for transmitting an EHT PPDU in a wireless LAN system is proposed. Specifically, a transmitting STA generates an EHT PPDU including a STF signal. The transmitting STA transmits the EHT PPDU to a receiving STA. The STF signal is generated on the basis of an EHT STF sequence for a 320 MHz band or a 160+160 MHz band. The EHT STF sequence for the 320 MHz band is a first sequence in which a predetermined M sequence is repeated, which is defined as {M 1 M 1 M 1 −M 0 M 1 −M 1 −M 1 M 0 M 1 M 1 M 1 −M 0 −M −1 M −1 M −1 −M}*(1+j)/sqrt(2). The sqrt( ) represents the square root. The predetermined M sequence is defined as M={−1, −1, −1, 1, 1, 1, −1, 1, 1, 1, −1, 1, 1, −1, 1}.

公开(公告)号：US20210274484A1

公开(公告)日：2021-09-02

申请号：US17253868

申请日：2019-06-10

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Sunwoong YUN ,  Dongguk LIM ,  Jinsoo CHOI

IPC: H04W72/04

Abstract: Proposed are a method and an apparatus for transmitting and receiving data to and from a wireless LAN system. Specifically, an AP transmits control information to an STA. The AP transmits data to or receives data from the STA on the basis of the control information. The control information includes RU information for transmitting and receiving data over a broadband network. If the broadband, on the basis of the RU information, is defined as only one full bandwidth, the RU information includes allocation information that the broadband consists of 12 guard tones, 3044-tone RU, 5 DC tones, and 11 guard tones. If the broadband, on the basis of the RU information, includes three 996-tone RUs, the RU information includes allocation information that the broadband consists of 12 guard tones, a first 996-tone RU, 1 null tone, 26-tone RU, 1 null tone, a second 996-tone RU, 1 null tone, 26-tone RU, 1 null tone, a third 996-tone RU, and 11 guard tones.