公开(公告)号：US20220286228A1

公开(公告)日：2022-09-08

申请号：US17753204

申请日：2020-08-19

Applicant: LG ELECTRONICS INC.

Inventor： Taewon SONG ,  Jeongki KIM ,  Jinsoo CHOI ,  Suhwook KIM ,  Jinmin KIM ,  Sungjin PARK ,  Insun JANG

IPC: H04L1/08 ,  H04L1/18 ,  H04L1/16 ,  H04L5/00 ,  H04L1/00

Abstract: The present invention relates to a method for an HARQ operation at a PHY layer level in a wireless LAN system or an apparatus for performing same. The method is characterized in receiving, from a transmission STA, a PPDU including a receiver ID which is a PHY layer signal, performing an error check on the PPDU, on the basis of the error check, transmitting an HARQ feedback frame which is a PHY layer signal, and receiving a retransmission PPDU.

公开(公告)号：US20220248265A1

公开(公告)日：2022-08-04

申请号：US17595264

申请日：2019-05-23

Applicant: LG ELECTRONICS INC.

Inventor： Hyowon BAE ,  Jinmin KIM ,  Jaewook SONG ,  Jinsoo CHOI

IPC: H04W28/06

Abstract: The present disclosure relates to a transmission device and reception device for data in a wireless AV system. The transmission device comprises: a processor for encoding media data thereby generating a compressed bitstream; and a communication unit for: fragmenting the compressed bitstream and mapping the compressed bitstream to an MSDU; generating, for transmission of the MSDU, an MPDU frame sequentially comprising an MAC header, a frame body, and an FCS for the MAC header; generating, for the transmission of the MPDU frame, a PPDU sequentially comprising a preamble, at least one PSDU, and a TRN field; and transmitting the PPDU frame through a radio channel. A radio resource for transmission of actually necessary data can be secured by minimizing unnecessary overhead information (i.e., control-related information in the MAC header) from among data transmitted over radio.

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：US20220216897A1

公开(公告)日：2022-07-07

申请号：US17599419

申请日：2019-05-07

Applicant: LG ELECTRONICS INC.

Inventor： Hyowon BAE ,  Jungwoo KIM ,  Jinmin KIM ,  Jaewook SONG ,  Jinsoo CHOI

IPC: H04B7/0408 ,  H04B17/309 ,  H04B7/0413 ,  H04B7/0491

Abstract: A method by which a first wireless device maintains beamforming in a wireless AV system, according to one embodiment of the present invention, comprises the steps of: transmitting a packet including a non-training field and a plurality of training fields to a second wireless device, wherein the non-training field is transmitted on the basis of the best sector combination from among a plurality of candidate sector combinations predetermined between the first wireless device and the second wireless device, and the plurality of training fields is transmitted on the basis of the plurality of candidate sector combinations; receiving candidate beam feedback information as a response to the plurality of training fields; determining, on the basis of the candidate beam feedback information, whether a channel change due to an obstacle occurs; and updating the best sector combination on the basis of the candidate beam feedback information when it is determined that the channel change occurs.

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：US20220103295A1

公开(公告)日：2022-03-31

申请号：US17427227

申请日：2020-01-31

Applicant: LG Electronics Inc.

Inventor： Taewon SONG ,  Jeongki KIM ,  Jinsoo CHOI ,  Suhwook KIM ,  Jinmin KIM

IPC: H04L1/08 ,  H04L1/18

Abstract: A station (STA) can transmit a first physical protocol data unit (PPDU) including a plurality of first constellation symbols related to initial transmission in a wireless location area network system. The first PPDU includes a first resource unit (RU), and the plurality of first constellation symbols can be assigned to a plurality of subcarriers within the first RU on the basis of a first assignment pattern. The STA can receive a retransmission request related to the first PPDU. The STA can transmit a second PPDU including a plurality of second constellation symbols related to retransmission. The second PPDU includes a second RU, and the plurality of second constellation symbols can be assigned to a plurality of subcarriers within the second RU on the basis of a second assignment 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：US20220030586A1

公开(公告)日：2022-01-27

申请号：US17494587

申请日：2021-10-05

Applicant: LG ELECTRONICS INC.

Inventor： Eunjong LEE ,  Jaehoon CHUNG ,  Genebeck HAHN ,  Jinmin KIM ,  Kukheon CHOI ,  Kwangseok NOH

IPC: H04W72/04 ,  H04W76/27 ,  H04L5/00 ,  H04W74/00 ,  H04W74/02 ,  H04W74/08 ,  H04L1/00 ,  H04W52/22 ,  H04W72/00 ,  H04W72/14

Abstract: A method for transmitting data by a user equipment (UE), includes configuring a Physical Uplink Shared Channel (PUSCH) configuration related to a physical random access channel (PRACH), wherein the PUSCH configuration includes parameters fora time interval for allocating PUSCH zones and a number of contiguous PUSCH zones in time domain, and transmitting the PRACH and a PUSCH based on the PUSCH configuration.

公开(公告)号：US20220007362A1

公开(公告)日：2022-01-06

申请号：US17288444

申请日：2019-10-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04L27/26

Abstract: An embodiment of the present invention relates to a technique for configuring a signal field in a wireless communication system. A receiving STA may receive and decode a PPDU. The PPDU may include a control information field, a plurality of signal fields, and a plurality of data fields. The control information field may be duplicated based on a first bandwidth, and the plurality of signal fields may be duplicated based on a second bandwidth. The second bandwidth may be set to be larger than the first bandwidth.

公开(公告)号：US20210307067A1

公开(公告)日：2021-09-30

申请号：US17345421

申请日：2021-06-11

Applicant: LG ELECTRONICS INC.

Inventor： Jinmin KIM ,  Kiseon RYU

IPC: H04W74/08 ,  H04W74/06 ,  H04W48/16

Abstract: In an embodiment of the present invention, a method for indicating, by an access point (AP) associated with a first basic service set (BSS), spatial reuse (SR) in a wireless LAN (WLAN) system includes transmitting a trigger frame which requests uplink multi-user (UL MU) transmission of a plurality of stations (STAs) and receiving an UL MU physical protocol data unit (PPDU) generated based on the trigger frame from the plurality of STAs. The trigger frame may include SR indication information for indicating the SR of an overlapping BSS (OBSS) STA. The first high efficiency (HE)-signal (SIG) A field of the UL MU PPDU may include SR support information generated based on the SR indication information.