公开(公告)号：US12133204B2

公开(公告)日：2024-10-29

申请号：US18514607

申请日：2023-11-20

Applicant: LG Electronics Inc.

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

IPC: H04W72/044 ,  H04L1/00 ,  H04W72/04 ,  H04W74/00 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04W72/044 ,  H04L1/00 ,  H04W72/04 ,  H04W74/006 ,  H04W84/12 ,  H04L1/0075 ,  H04W88/08

Abstract: A method of transmitting a frame by a station (STA) in a wireless LAN system supporting an HE PPDU (high efficiency physical layer protocol data unit) according to an embodiment of the present invention includes: setting a first duration field included in an HE-SIG A field; and transmitting a frame including the HE-SIG A field and a MAC header, wherein the first duration field is set to indicate a TXOP (transmission opportunity) value using a smaller number of bits than a second duration field included in the MAC header, and a granularity of a time unit used for indicating the TXOP value in the first duration field is set to be different from a granularity of a time unit used in the second duration field.

公开(公告)号：US11930454B2

公开(公告)日：2024-03-12

申请号：US18101005

申请日：2023-01-24

Applicant: LG Electronics Inc.

Inventor： Eunsung Park ,  Jinsoo Choi ,  Hangyu Cho

IPC: H04W52/02 ,  H04L5/00 ,  H04L25/03 ,  H04L27/26 ,  H04L27/34 ,  H04W28/06 ,  H04W84/12 ,  H04B7/0413

CPC classification number: H04W52/0229 ,  H04L5/00 ,  H04L25/03 ,  H04L27/26025 ,  H04L27/2613 ,  H04L27/34 ,  H04W28/065 ,  H04W84/12 ,  H04B7/0413 ,  H04L5/0051 ,  H04L5/0053 ,  Y02D30/70

Abstract: Disclosed are a method and an apparatus for generating an STF signal usable in a wireless LAN system. The STF signal is included in a field used to improve AGC estimation of a MIMO transmission. A portion of the STF signal is used to transmit an uplink, and can be used for uplink MU PPDUs transmitted from a plurality of STAs. The STF signal that is disclosed, for example, is used for a 40 MHz band or an 80 MHz band, is desirably usable for the 40 MHz band, and can be generated based on a sequence in which a predetermined M sequence is repeated. The predetermined M sequence can be a binary sequence of which the length is 15 bits.

公开(公告)号：US11564204B2

公开(公告)日：2023-01-24

申请号：US16704815

申请日：2019-12-05

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04W72/02 ,  H04W84/12 ,  H04W74/08 ,  H04L5/00 ,  H04W72/04

Abstract: According to an embodiment of the present invention, a method of managing a network allocation vector (NAV) by a station (STA) in a wireless LAN system supporting a high efficiency physical layer protocol data unit (HE PPDU) includes: receiving a frame including duration information; selecting a predetermined NAV from a plurality of NAVs of the STA; and managing the predetermined NAV based on the duration information of the frame, wherein the predetermined NAV is selected based on whether the frame has been received from a basic service set (BSS) to which the STA belongs.

公开(公告)号：US11523387B2

公开(公告)日：2022-12-06

申请号：US17824106

申请日：2022-05-25

Applicant: LG Electronics Inc.

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

IPC: H04W72/04 ,  H04W84/12 ,  H04L1/00 ,  H04W74/00 ,  H04W88/08

Abstract: A method of transmitting a frame by a station (STA) in a wireless LAN system supporting an HE PPDU (high efficiency physical layer protocol data unit) according to an embodiment of the present invention includes: setting a first duration field included in an HE-SIG A field; and transmitting a frame including the HE-SIG A field and a MAC header, wherein the first duration field is set to indicate a TXOP (transmission opportunity) value using a smaller number of bits than a second duration field included in the MAC header, and a granularity of a time unit used for indicating the TXOP value in the first duration field is set to be different from a granularity of a time unit used in the second duration field.

公开(公告)号：US11197321B2

公开(公告)日：2021-12-07

申请号：US16742615

申请日：2020-01-14

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin Park ,  Jinmin Kim ,  Hangyu Cho ,  Kyungtae Jo

IPC: H04L12/28 ,  H04W74/08 ,  H04W84/12 ,  H04W72/12 ,  H04W74/00 ,  H04W72/04 ,  H04J1/16

Abstract: The present specification relates to a method for transmitting or receiving data by a station in a wireless LAN (WLAN) system and, more particularly, presents a method and device for transmitting or receiving data on the basis of a beamforming training method for a plurality of channels, when a station transmits the data by using the plurality of channels.

公开(公告)号：US11171757B2

公开(公告)日：2021-11-09

申请号：US15762084

申请日：2016-10-06

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04L5/00 ,  H04W84/12 ,  H04W88/08 ,  H04L1/16

Abstract: The present document relates to a method and device for an Access Point (AP) to transmit ACK/NACK signals for MU (Multi-User) transmission data of a plurality of stations (STA) in a wireless LAN (WLAN) system. To this end, the method and device are characterized in that a STA responds to a trigger frame received from an AP, transmits data to the AP through an MU access technique, and sets an ACK policy value for data transmitted on the basis of the trigger frame to another value other than a first ACK policy value requesting an ACK signal transmission on the basis of a block ACK request.

公开(公告)号：US11089628B2

公开(公告)日：2021-08-10

申请号：US16095673

申请日：2017-04-20

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04W74/08 ,  H04L1/18 ,  H04W72/04 ,  H04W84/12

Abstract: In the wireless LAN system, the station STA receives a frame and updates a corresponding Inter-BSS Network Allocation Vector (NAV) or Intra-BSS NAV according to whether the frame is an Inter-BSS (Basic Service Set) frame or an Intra-BSS frame. If the received frame cannot be distinguished from the Inter-BSS frame or the Intra-BSS frame, it updates the Inter-NAV, and after receiving the frame that cannot be distinguished from the Inter-BSS frame or the Intra-BSS frame, it receives the CF-End frame, and then the corresponding NAV is reset.

公开(公告)号：US11012938B2

公开(公告)日：2021-05-18

申请号：US16343742

申请日：2017-09-15

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Eunsung Park ,  Hangyu Cho ,  Jinsoo Choi

IPC: H04W52/02 ,  H04W84/12 ,  H04W56/00

Abstract: A method for receiving a WUR signal by an STA, according to one embodiment of the present invention, comprises the steps of: detecting a WUR preamble sequence included in a WUR PPDU through a WUR receiver of the STA, while a WLAN receiver of the STA is turned off; obtaining WUR data included in the WUR PPDU, on the basis of a timing synchronized through the WUR preamble sequence; and outputting a wake-up signal to the WLAN receiver through the WUR receiver of the STA if the WUR data is intended for the STA, wherein the WUR preamble sequence used for the synchronization corresponds to a signature sequence carrying specific information, and the specific information may include at least one of an SU/MU indicator indicating whether the WUR PPDU is for a single user (SU) or a multi-user (MU), and information on the bandwidth of the WLAN PPDU to be received after wake-up by the WLAN receiver.

公开(公告)号：US10999113B2

公开(公告)日：2021-05-04

申请号：US16535756

申请日：2019-08-08

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Wookbong Lee ,  Hangyu Cho ,  Dongguk Lim ,  Jinyoung Chun

IPC: H04L29/06 ,  H04L27/26 ,  H04L5/00

Abstract: A method and a device for transmitting a data unit are disclosed. A method for transmitting a PPDU can comprise the steps of: generating, by an STA, the PPDU including a first portion and a second portion; and transmitting, by the STA, the PPDU, wherein the first portion is generated by performing IFFT according to a first FFT size, the second portion is generated by performing IFFT according to a second FFT size, and the first FFT size can differ from the second FFT size.

公开(公告)号：US10993182B2

公开(公告)日：2021-04-27

申请号：US16087992

申请日：2017-03-24

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04W52/02 ,  H04W72/12 ,  H04L5/00 ,  H04W52/00

Abstract: Disclosed is a power saving method for a station (STA) in a mobile communication system. On receiving a trigger frame from an access point (AP), a STA transmits a physical protocol data unit (PPDU) to the AP through a multi-user scheme, in response to the trigger frame, wherein the trigger frame includes subsequent scheduling information for each STA. Accordingly, the STA may transit to a doze state on the basis of the subsequent scheduling information for each STA.