公开(公告)号：US20220140987A1

公开(公告)日：2022-05-05

申请号：US17435508

申请日：2020-02-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04L25/02 ,  H04W72/04

Abstract: In a wireless local area network system, a sharing access point (AP) may determine a long training field (LTF) subcarrier pattern for each of multiple streams, wherein an LTF symbol is used for at least one stream among a first to a third stream, the number of the LTF symbols is determined on the basis of the number of antennas of a shared AP having the maximum number of antennas among multiple shared APs associated with the sharing AP, and the first to the third stream are assigned different subcarrier patterns. The sharing AP may transmit information associated with the LTF subcarrier pattern.

公开(公告)号：US11324046B2

公开(公告)日：2022-05-03

申请号：US17253591

申请日：2019-06-18

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04L1/00 ,  H04L1/16 ,  H04W80/02 ,  H04W84/12

Abstract: Proposed are a method and a device for transmitting data in a wireless LAN system. Specifically, a transmission device receives configuration information of a multi-band formed by aggregating first to third bands. The transmission device carries out channel sensing on the first to third bands. The transmission device transmits data to a receiving device on the basis of the result of the channel sensing. The first band comprises a first primary channel and a first secondary channel; the second band comprises a second primary channel and a second secondary channel; and the third band comprises a third primary channel and a third secondary channel.

公开(公告)号：US11277796B2

公开(公告)日：2022-03-15

申请号：US16968100

申请日：2019-02-07

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Jinsoo Choi

IPC: H04W52/02 ,  H04L27/02 ,  H04W84/12

Abstract: Disclosed is a method for communicating in a wireless LAN system performed by a first wireless terminal, the method including: generating a wake-up packet modulated by an On-Off Keying (OOK) technique wherein the wake-up packet comprises a plurality of identification information for a plurality of second wireless terminals, each of the plurality of identification information is generated based on a bit length unit having a fixed size, and the bit length unit having the fixed size is set to 12 bits; and transmitting the wakeup packet to the plurality of second wireless terminals.

公开(公告)号：US11277795B2

公开(公告)日：2022-03-15

申请号：US16962115

申请日：2019-01-14

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Jinsoo Choi

IPC: H04W52/02 ,  H04L27/04 ,  H04W40/24 ,  H04W84/12

Abstract: A method for communication in a wireless LAN system according to an embodiment includes: receiving, by a first wireless terminal including a main radio module and a WUR module for receiving a wake-up packet modulated based on OOK scheme, the wake-up packet from a second wireless terminal based on the WUR module, wherein the wake-up packet includes first information indicating that a broadcast scheme is applied to the wake-up packet and second information for indicating the presence of a group addressed frame buffered by the second wireless terminal; and controlling, by the first wireless terminal, the main radio module such that the main radio module remains in a doze state until a predetermined wake-up time after reception of the wake-up packet.

公开(公告)号：US11184854B2

公开(公告)日：2021-11-23

申请号：US16760824

申请日：2018-11-01

Applicant: LG Electronics Inc.

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

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

Abstract: A method for an STA for receiving a WUR frame in a WLAN, according to one embodiment of the present invention, comprises the steps of: receiving a WUR frame including a first portion of a TSF timer and an MIC value; calculating an MIC verification value on the basis of the first portion of the TSF timer and the TSF timer stored in the STA; and determining whether to discard the received WUR frame depending on whether the MIC value included in the WUR frame matches the calculated MIC verification value, wherein the first portion of the TSF timer included in the WUR frame is the 8-bits following the least significant N-bit in the TSF timer, and the STA may obtain a continuous 48-bit partial TSF timer value through the first portion of the TSF timer and a second portion of the TSF timer stored in the STA, and may calculate the MIC verification value on the basis of the obtained 48-bit partial TSF timer value.

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：US11082887B2

公开(公告)日：2021-08-03

申请号：US16489287

申请日：2018-02-27

Applicant: LG ELECTRONICS INC.

Inventor： Saehee Bang ,  Jeongki Kim ,  Jinmin Kim ,  Jinsoo Choi

IPC: H04W28/04 ,  H04L1/16 ,  H04L1/18 ,  H04W80/02 ,  H04W80/04 ,  H04W84/12

Abstract: A method for frame retransmission performed by a first wireless terminal in a wireless LAN system comprises the steps of: dividing an MSDU received from an upper layer of a first wireless terminal into multiple MPDUs; transmitting the multiple divided MPDUs to a second wireless terminal, wherein each of the multiple divided MPDUs includes division information and transmission sequence information; if an ACK frame for notifying of successful reception of the multiple divided MPDUs is not received until a preset time elapses, transmitting, to the second wireless terminal, a BAR frame for determining at least one MPDU to be retransmitted by the first wireless terminal among the multiple divided MPDUs; receiving a BA frame from the second wireless terminal in response to the BAR frame, wherein the BA frame includes frame information indicating a last MPDU successfully received by the second wireless terminal among the multiple divided MPDUs; and performing a retransmission procedure on the basis of the frame information.

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.

公开(公告)号：US10939414B2

公开(公告)日：2021-03-02

申请号：US16446286

申请日：2019-06-19

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W84/12 ,  H04W76/10 ,  H04L5/00 ,  H04L1/16 ,  H04W74/08 ,  H04W74/00 ,  H04W74/06

Abstract: A method for a station (STA) not having an association identifier (AID) allocated thereto transmitting a signal in a wireless LAN system, according to one embodiment of the present invention, comprises the steps of: transmitting a first frame through at least one resource among resources indicated by a trigger frame; and receiving a multi-STA block Ack (M-BA) frame as a reply to the first frame, wherein, if in the M-BA frame a MAC address of the STA that is different from a first information is detected from at least a part of a first field reserved for the first information, an N-bit of a second field preceding the first field is set as a temporary AID of the STA.

公开(公告)号：US10932292B2

公开(公告)日：2021-02-23

申请号：US16304669

申请日：2017-05-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04L5/00 ,  H04W72/04 ,  H04W76/11 ,  H04W84/12

Abstract: A method for transmitting a frame in a wireless LAN system according to an embodiment of the present specification comprises a step of transmitting, by a wireless terminal, a trigger frame including identification information for a plurality of user STAs and resource information indicating resource units separately allocated to the plurality of user STAs, wherein, when the trigger frame is an MU RTS frame, the resource information is configured: on the basis of first to fourth index values in a fourth index range in order to indicate a primary 20 MHz channel through which a CTS frame, a response to the MU RTS frame, is to be transmitted; on the basis of fifth and sixth index values in a fifth index range in order to indicate a primary 40 MHz channel through which the CTS frame is to be transmitted; and on the basis of a seventh index value in a sixth index range in order to indicate a primary 80 MHz channel through which the CTS frame is to be transmitted.