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：US11632817B2

公开(公告)日：2023-04-18

申请号：US17267658

申请日：2019-08-08

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Sanggook Kim ,  Jeongki Kim ,  Jinsoo Choi

IPC: H04W76/15 ,  H04W84/12

Abstract: The present disclosure relates to a method and/or device for receiving a signal in a wireless local area network (WLAN) system. A station (STA) of the present disclosure may aggregate a plurality of links including a first link and a second link. The STA of the present disclosure may transmit a frame including first information related to a preferred link and second information related to whether signal sharing is possible in the plurality of links. Information transmitted by the STA of the present disclosure may be used to appropriately signal an operating band in the WLAN system supporting a plurality of links.

公开(公告)号：US11451424B2

公开(公告)日：2022-09-20

申请号：US16979504

申请日：2019-03-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04J3/16 ,  H04W52/02 ,  H04W72/04

Abstract: A method and an apparatus for transmitting a PPDU on the basis of an S-TDMA in a wireless LAN system are presented. Particularly, an AP transmits a trigger frame to a first STA and a second STA. The AP receives, on the basis of the trigger frame, a first trigger-based frame from the first STA and a second trigger-based frame from the second STA. The trigger frame includes a common information field and a user information field. The common information field includes S-TDMA indication information enabling the S-TDMA to be performed. The user information field includes: allocation information on a first RU to which the first trigger-based frame and the second trigger-based frame are transmitted; first symbol offset information on the first trigger-based frame; and second symbol offset information on the second trigger-based frame.

公开(公告)号：US20220294564A1

公开(公告)日：2022-09-15

申请号：US17634196

申请日：2020-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Taewon Song ,  Jeongki Kim ,  Jinsoo Choi ,  Suhwook Kim ,  Jinmin Kim ,  Sungjin Park ,  Insun Jang

IPC: H04L1/08 ,  H04L1/18

Abstract: The present specification proposes a method for resuming a PHY-level HARQ operation in a wireless local area network (WLAN) system. The method may include transmitting a resume signal including information related to resumption of hybrid automatic repeat request (HARQ) retransmission. The method may include transmitting a physical protocol data unit (PPDU) after transmitting the resume signal. The PPDU and the resume signal may be transmitted in different transmission opportunities (TXOPs).

公开(公告)号：US11337149B2

公开(公告)日：2022-05-17

申请号：US16686675

申请日：2019-11-18

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung Choi ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Suhwook Kim

IPC: H04W52/02 ,  H04W74/00 ,  H04W72/04 ,  H04W72/12 ,  H04W84/12 ,  H04W74/08 ,  H04W74/02 ,  H04W74/04

Abstract: A method in a wireless local area network (WLAN) includes receiving, from an access point (AP) by a station (STA), a beacon frame comprising a first field related to a transmission time of a trigger frame, wherein the trigger frame includes frequency resource information to be used for an uplink multi-user (UL MU) transmission, wherein the frequency resource information to be included in the trigger frame includes at least one of first type resource information used for random access and second type resource information used for scheduled access, wherein the random access is performed by the STA based on orthogonal frequency division multiple access (OFDMA), wherein the beacon frame further comprises a second field related to whether or not the trigger frame includes the first type resource information; receiving, from the AP by the STA, the trigger frame based on the first field; determining, by the STA, UL resource to be used for the UL MU transmission based on the first type resource information and the second type resource information; and performing, by the STA, the UL MU transmission based on the UL resource.

公开(公告)号：US11265942B2

公开(公告)日：2022-03-01

申请号：US17042083

申请日：2019-03-25

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  H04W76/15 ,  H04W36/00 ,  H04W48/16 ,  H04W84/12

Abstract: A method for supporting dual connectivity performed by a STA connected to a first AP and a second AP in a WLAN according to one embodiment includes: determining whether a predetermined AP change condition is satisfied while performing uplink transmission based on a first operating band for the first AP; transmitting an AP change request frame to the first AP in order to perform uplink transmission based on a second operating band for the second AP when it is determined that the AP change condition is satisfied; receiving an AP change response frame from the first AP in response to the AP change request frame; performing a channel switch operation from the first operating band to the second operating band when the AP change request frame is received; and transmitting an uplink frame to the second AP based on the second operating band.

公开(公告)号：US11246095B2

公开(公告)日：2022-02-08

申请号：US16627213

申请日：2018-06-28

Applicant: LG Electronics Inc.

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

IPC: H04W52/02 ,  H04W84/12

Abstract: According to one embodiment of the present disclosure, a method by which a station (STA) receives a wake-up radio (WUR) frame in a wireless LAN (WLAN) comprises the steps of: entering a WUR duty cycle mode in which an on-duration for which a WUR receiver of the STA is awake and an off-duration for which the WUR receiver of the STA is sleeping are alternately repeated; and turning on a primary connectivity radio (PCR) when a WUR frame is detected in the on-duration of the WUR duty cycle mode, wherein, when the WUR frame indicates reception of a PCR beacon frame or a delivery traffic indication map (DTIM), the STA can turn on the PCR after delaying a predetermined time from the detection of the WUR frame according to a time point at which the PCR beacon frame or the DTIM is transmitted.

公开(公告)号：US11178568B2

公开(公告)日：2021-11-16

申请号：US16076087

申请日：2017-02-17

Applicant: LG ELECTRONICS INC.

Inventor： Hyunhee Park ,  Kiseon Ryu ,  Suhwook Kim ,  Jeongki Kim ,  Hangyu Cho

IPC: H04W28/02 ,  H04L1/16 ,  H04W84/12

Abstract: A method for uplink multi-user (UL MU) operation in a WLAN system according to an embodiment of the present specification comprises the steps of: receiving, by an access point (AP), a buffer state report frame used for the UL MU operation from a user STA associated with the AP, wherein the buffer state report frame includes bitmap information for a plurality of access categories for which the buffer state of the user STA is to be reported, and identification information for a number of traffic identifiers (TIDs) for at least one traffic being buffered by the user STA, wherein the identifier information is set based on a number of the plurality of access categories indicated by the bitmap information; and transmitting, by the AP, a trigger frame for triggering the UL MU operation from a plurality of user STAs.

公开(公告)号：US10932272B2

公开(公告)日：2021-02-23

申请号：US16400793

申请日：2019-05-01

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Giwon Park ,  Suhwook Kim ,  Hangyu Cho

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04W84/12

Abstract: The present document relates to a wireless communication system and, more specifically, to a method for flexibly supporting resource allocation in a wireless LAN system, and a method and an apparatus for signal transmission using the same. To this end, a first STA configures a radio frame comprising: a signaling (SIG) field including control information; and a data field in which data can be transmitted via a discontinuous channel or a channel having a bandwidth size that is supported by a legacy system. When the first STA transmits the configured radio frame to a second STA, the SIG field preferably comprises: information about a full bandwidth in which data can be transmitted via the data field; and null indicator information indicating a channel region of the full bandwidth that is not used in data transmission, or used channel indicator information indicating a channel region of the full bandwidth that is used in data transmission.

公开(公告)号：US10743369B2

公开(公告)日：2020-08-11

申请号：US16091089

申请日：2017-04-04

Applicant: LG ELECTRONICS INC.

Inventor： Hyunhee Park ,  Kiseon Ryu ,  Suhwook Kim ,  Jeongki Kim ,  Hangyu Cho

IPC: H04W84/12 ,  H04W8/24 ,  H04W72/04 ,  H04W74/00 ,  H04B7/0452 ,  H04L5/00 ,  H04B7/06 ,  H04L27/26 ,  H04B7/0404

Abstract: The present specification proposes a signal processing method for changing an operating mode for transmitting a PPDU in a wireless LAN system. Specifically, a first station receives, from the second station, indication information which indicates a change in an operating mode indicating a receiving channel bandwidth and a number of spatial streams supported by a second station during a TXOP interval. When the number of spatial streams and the receiving channel bandwidth decrease, the first station configures a PPDU for the second station by using the indication information after transmitting an ACK for the indication information. When the number of spatial streams and the receiving channel bandwidth increase, the first station configures a PPDU for the second station by using the indication information during a subsequent TXOP interval of the TXOP interval.