公开(公告)号：US11909672B2

公开(公告)日：2024-02-20

申请号：US17222320

申请日：2021-04-05

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Jinyoung Chun ,  Hangyu Cho ,  Jinsoo Choi ,  Kiseon Ryu

IPC: H04L5/00 ,  H04J11/00 ,  H04W74/00 ,  H04W84/12

CPC classification number: H04L5/0007 ,  H04J11/005 ,  H04L5/0037 ,  H04L5/0094 ,  H04L5/0096 ,  H04W74/006 ,  H04W84/12

Abstract: A wireless communication system and, more particularly, to a method for performing efficient signaling for a reserved sub-band in a wireless LAN system, and a method and an apparatus for signal transmission using the same. To this end, an STA provides resource allocation information for transmitting data to a plurality of STAs using an orthogonal frequency divisional multiple access (OFDMA) or multiple user MIMO (MU-MIMO) method; transmits the resource allocation information to the plurality of STAs; and transmits data to the plurality of STAs according to the resource allocation information. The entire frequency band may include a sub-band which is not used for the data transmission, and it is preferable that the resource allocation information includes a resource allocation bitmap having a form common to the plurality of STAs and indication information which informs a sub-band, from among the entire frequency band, which is not used for the data transmission.

公开(公告)号：US11902020B2

公开(公告)日：2024-02-13

申请号：US18132696

申请日：2023-04-10

Applicant: LG Electronics Inc.

Inventor： Eunsung Park ,  Jinsoo Choi ,  Dongguk Lim

IPC: H04L1/00 ,  H04L5/00 ,  H04W84/12

CPC classification number: H04L1/0057 ,  H04L5/0042 ,  H04W84/12

Abstract: Presented are a method by which a multi-RU receives a LDPC-tone-mapped PPDU in a wireless LAN system, and an apparatus. Particularly, a reception STA receives, from a transmission STA, a PPDU including a data field and decodes the data field. The data field is received through the multi-RU. LDPC tone mapping for data tone included in the data field is performed on the basis of a first parameter with respect to the multi-RU. The first parameter is 18 when the multi-RU is an RU in which the 242 tone RU and the 484 tone RU are aggregated.

公开(公告)号：US11889418B2

公开(公告)日：2024-01-30

申请号：US16629028

申请日：2019-05-02

Applicant: LG Electronics Inc.

Inventor： Taewon Song ,  Suhwook Kim ,  Jeongki Kim ,  Kiseon Ryu ,  Jinsoo Choi

IPC: G08C17/00 ,  H04W52/02 ,  H04W48/16 ,  H04W84/12

CPC classification number: H04W52/0229 ,  H04W48/16 ,  H04W84/12

Abstract: Proposed herein is a method and device for receiving a WUR discovery frame in a wireless LAN system. More specifically, a station (STA) receives a WUR discovery element from an access point (AP). The STA receives the WUR discovery frame from a neighbor AP based on the WUR discovery element. The WUR discovery element includes AP list information. The AP list information includes information on a WUR discovery period. The WUR discovery frame is received during the WUR discovery period.

公开(公告)号：US11838770B2

公开(公告)日：2023-12-05

申请号：US18139177

申请日：2023-04-25

Applicant: LG ELECTRONICS INC.

Inventor： Namyeong Kim ,  Jeongki Kim ,  Jinsoo Choi ,  Insun Jang ,  Sunhee Baek

IPC: H04W4/00 ,  H04W24/02 ,  H04L1/1607 ,  H04W84/12

CPC classification number: H04W24/02 ,  H04L1/1642 ,  H04W84/12

Abstract: Proposed are a method and a device for transmitting and receiving important update information of another AP through an ML element in a WLAN system. Specifically, a receiving MLD receives a basic ML element from a transmitting MLD over a first link. The receiving MLD decodes the basic ML element. The basic ML element includes a profile field of the second transmitting STA. The profile field of the second transmitting STA includes a first CSF presence field. When the value of the first CSF presence field is set to 0, the profile field of the second transmitting STA includes a first CSF field. The first CSF field includes information about the current change sequence number of the second transmitting STA.

公开(公告)号：US11838565B2

公开(公告)日：2023-12-05

申请号：US17595058

申请日：2019-06-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyowon Bae ,  Jinmin Kim ,  Jaewook Song ,  Jinsoo Choi

IPC: H04N21/2343 ,  H04L1/16 ,  H04N21/64

CPC classification number: H04N21/2343 ,  H04L1/16 ,  H04N21/64

Abstract: The present invention relates to a data transmission device and reception device in a wireless AV system. Disclosed in the present specification is a wireless data transmission device comprising: a processor for generating a compressed bitstream by encoding media data; and a communication unit for segmenting the compressed bitstream, mapping the segmentation results to MSDUs, generating an MPDU frame sequentially including a MAC header, a frame body, and an FCS associated with the MAC header in order to transmit the MSDUs, generating a PPDU frame sequentially, which includes a preamble to which at least a portion of the MAC header is mapped, at least one PPDU to which the frame body and the FCS are mapped, and a TRN field, and transmitting the PPDU frame through a wireless channel. A data transmission rate can be improved through a reduction in overhead information.

公开(公告)号：US20230354452A1

公开(公告)日：2023-11-02

申请号：US18218898

申请日：2023-07-06

Applicant: LG ELECTRONICS INC.

Inventor： Namyeong KIM ,  Jeongkl Kim ,  Jinsoo Choi ,  Sungjin Park ,  Taewon Song ,  Insun Jang

IPC: H04W76/15

CPC classification number: H04W76/15 ,  H04W84/12

Abstract: According to various embodiments, a multi-link device (MLD) operating in multiple links including a first link may transmit, through a first station (STA) and to a first AP of an AP multi-link device, a request frame including an information field for requesting at least one element related to a second link. The multi-link device may receive at least one element related to the second link on the basis of the request frame.

公开(公告)号：US11804923B2

公开(公告)日：2023-10-31

申请号：US17286048

申请日：2019-10-24

Applicant: LG ELECTRONICS INC.

Inventor： Kiseon Ryu ,  Jeongki Kim ,  Sanggook Kim ,  Jinsoo Choi

IPC: H04W84/12 ,  H04L1/00 ,  H04L1/1607

CPC classification number: H04L1/0025 ,  H04L1/1614 ,  H04W84/12

Abstract: A method performed in a wireless local area network (LAN) system according to various embodiments is associated with a first station (STA) supporting multi-links comprising first and second links. A control field associated with an operating mode (OM) of the first STA can be associated with the on-off of the first link and/or the second link. The first and second links can each be a channel for various bandwidths defined in, for example, 2.4 GHz band, 5 GHz band and 6 GHz band. The first and second links can belong to the same or different bands. On-off information relating to each link can be formed on the basis of information such as an index or a control field bitmap associated with the operating mode.

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：US11695453B2

公开(公告)日：2023-07-04

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

CPC classification number: H04B7/0408 ,  H04B7/0413 ,  H04B7/0491 ,  H04B17/309

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.