公开(公告)号：US11777651B2

公开(公告)日：2023-10-03

申请号：US17268060

申请日：2019-09-18

Applicant: LG ELECTRONICS INC.

Inventor： Sunwoong Yun ,  Jinmin Kim ,  Eunsung Park ,  Dongguk Lim ,  Jinsoo Choi

IPC: H04L1/06 ,  H04L69/324 ,  H04W84/12

CPC classification number: H04L1/06 ,  H04L69/324 ,  H04W84/12

Abstract: A method and an apparatus for transmitting a PPDU in a WLAN system are proposed. Specifically, a transmitter generates a PPDU and transmits the PPDU to a receiver. The PPDU includes a legacy field and an EHT field. The legacy field includes a VHT-STF and a HE-STF. The EHT field includes an EHT-STF and a data field. The EHT field is configured on the basis of a CSD value of each transport chain. The CSD value is determined as a candidate CSD value in which the sum of a first absolute value and a second absolute value is the minimum on the basis of a power ratio. The power ratio is a ratio of a received power of the VHT-STF, the HE-STF, or the EHT-STF to a received power of the data field. The first absolute value is an absolute value of a value related to 5 percent of a CDF relative to the power ratio. The second absolute value is an absolute value of a value related to 95 percent of the CDF relative to the power ratio.

公开(公告)号：US11706322B2

公开(公告)日：2023-07-18

申请号：US17742097

申请日：2022-05-11

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Eunsung Park ,  Sunwoong Yun ,  Jinsoo Choi

IPC: H04L27/18 ,  H04W84/12 ,  H04L69/22

CPC classification number: H04L69/22 ,  H04L27/18 ,  H04W84/12

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：US20230171140A1

公开(公告)日：2023-06-01

申请号：US17913285

申请日：2021-03-19

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Jinyoung Chun ,  Jinsoo Choi ,  Dongguk Lim

IPC: H04L27/26 ,  H04L1/00

CPC classification number: H04L27/2603 ,  H04L1/0013 ,  H04L27/2621 ,  H04W84/12

Abstract: 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 a legacy preamble, and a first and a second signal field. The legacy preamble and the first and the second signal field are generated on the basis of a first phase rotation value. In a case in which the broadband is a 320 MHz band, the first phase rotation value is [1 1 1 −j j j j 1 j j j 1 −1 −1 −1 j].

公开(公告)号：US20230155755A1

公开(公告)日：2023-05-18

申请号：US17915366

申请日：2021-03-31

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinyoung Chun ,  Jinsoo Choi ,  Eunsung Park

IPC: H04L5/00 ,  H04W72/0453

CPC classification number: H04L5/0044 ,  H04W72/0453 ,  H04W84/12

Abstract: According to various embodiments, a receiving STA can receive a physical layer protocol data unit (PPDU) including a first signal field. The first signal field may include a plurality of content channels. The plurality of content channels can be configured on the basis of a first bandwidth. A first content channel and a second content channel, from among the plurality of content channels, can be configured in the frequency range of the first bandwidth.

公开(公告)号：US11588673B2

公开(公告)日：2023-02-21

申请号：US17164222

申请日：2021-02-01

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinyoung Chun ,  Jinsoo Choi ,  Eunsung Park

IPC: H04L27/26 ,  H04W80/00

Abstract: According to various embodiments, a receiving station (STA) may receive a physical layer protocol data unit (PPDU). The PPDU may include a first signal field and a second signal field. The first signal field may include 3-bit information. The receiving STA may determine whether the PPDU is related to single user (SU) transmission or multiple user (MU) transmission, whether the PPDU is related to orthogonal frequency division multiple access (OFDMA), whether the PPDU is related to multi-user multiple input multiple output (MU-MIMO), and whether the PPDU is related to a trigger-based (TB) PPDU, based on the 3-bit information.

公开(公告)号：US11582076B2

公开(公告)日：2023-02-14

申请号：US17192565

申请日：2021-03-04

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinyoung Chun ,  Jinsoo Choi ,  Eunsung Park

IPC: H04L27/22 ,  H04L27/34 ,  H04L27/20 ,  H04W84/12

Abstract: According to various embodiments, a receiving station (STA) may receive a physical protocol data unit (PPDU). The PPDU may include a legacy signal field, a repeated legacy signal field, a first signal field, and a second signal field. The receiving STA may determine a type of the PPDU and a format of the PPDU, based on the legacy signal field, the repeated legacy signal field, the first signal field, and the second signal field.

公开(公告)号：US11523374B2

公开(公告)日：2022-12-06

申请号：US17253868

申请日：2019-06-10

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Sunwoong Yun ,  Dongguk Lim ,  Jinsoo Choi

IPC: H04W84/12 ,  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.

公开(公告)号：US11496278B2

公开(公告)日：2022-11-08

申请号：US16972275

申请日：2019-06-10

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Sunwoong Yun ,  Dongguk Lim ,  Jinsoo Choi

IPC: H04L5/00 ,  H04W72/04 ,  H04W80/02 ,  H04W84/12

Abstract: A method and a device for transmitting a PPDU in a WLAN system are proposed. Specifically, an AP generates a PPDU and transmits the PPDU to a STA through a broadband. The PPDU includes an EHT-LTF and a data field. The data field includes a pilot tone. The coefficient of the pilot tone is set to a second pilot sequence in which a first pilot sequence is repeated. The first pilot sequence is {1 1 1 −1 −1 1 1 1}.

公开(公告)号：US20220353121A1

公开(公告)日：2022-11-03

申请号：US17763001

申请日：2020-09-21

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Jinsoo Choi ,  Dongguk Lim

IPC: H04L27/26

Abstract: 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 broadband is a 320 MHz band or a 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 a sequence in which a phase rotation is applied to a sequence in which a second STF sequence for an 80 MHz band is repeated. The first STF sequence is a sequence in which a preconfigured M sequence 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). The preconfigured 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：US11483771B2

公开(公告)日：2022-10-25

申请号：US17045984

申请日：2019-04-05

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Dongguk Lim ,  Jinsoo Choi

IPC: H04W52/02 ,  H04L1/00 ,  H04L27/10 ,  H04L27/26

Abstract: A method and an apparatus for transmitting a wakeup packet in a wireless LAN system are proposed. Specifically, a transmitter generates a wakeup packet by applying an OOK scheme. The transmitter transmits the wakeup packet to a receiver via an 80 MHz channel. The 80 MHz channel includes first to fourth subchannels. If some of the first to fourth subchannels are busy or there are no pending wakeup packets for the receiver in some of the subchannels, some of the subchannels are punctured. The wakeup packet is transmitted via the remaining subchannels of the first to fourth subchannels. Each of the first to fourth subchannels is a 20 MHz channel.