公开(公告)号：US20220225236A1

公开(公告)日：2022-07-14

申请号：US17615305

申请日：2020-04-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02

Abstract: A method performed by a first STA in a wireless local area network (WLAN) according to various embodiments may comprise transmitting or receiving a TWT setup request message and a TWT setup response message. The first STA may perform a TWT operation on the basis of the TWT setup request message and the TWT setup response message. The TWT setup request message and the TWT setup response message may be transmitted or received through a first link included in multiple links. The first STA may set the first link to be in an awake state in order to perform the TWT operation through the first link.

公开(公告)号：US20220167444A1

公开(公告)日：2022-05-26

申请号：US17622742

申请日：2020-06-22

Applicant: LG ELECTRONICS INC.

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

IPC: H04W76/15

Abstract: In a wireless local area network (WLAN) system, a station (STA) may support a multi-link. The STA may generate a PDDU including operation mode information on whether transmission of a signal and reception of a signal can be performed simultaneously. The STA may transmit the PPDU.

公开(公告)号：US11330523B2

公开(公告)日：2022-05-10

申请号：US16961655

申请日：2019-01-11

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W84/12

Abstract: A method for performing communication based on a power saving operation in a wireless LAN system according to an embodiment includes: receiving, by a first wireless terminal including a main radio module and a wake-up radio (WUR) module for receiving a wake-up packet modulated with on-off keying (OOK), the wake-up packet from a second wireless terminal based on the WUR module in a WUR mode in which the WUR module is controlled to alternate between a turn-on state and a turn-off state based on a power state of the main radio module, the wake-up packet including information related to an individually addressed frame for the first wireless terminal; and controlling, by the first wireless terminal, the main radio module such that the main radio module is in an awake state in a predetermined service period related to the main radio module when a predetermined time has elapsed after reception of the wake-up packet.

公开(公告)号：US11323965B2

公开(公告)日：2022-05-03

申请号：US16629282

申请日：2018-07-09

Applicant: LG Electronics Inc.

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

IPC: G08C17/00 ,  H04W52/02

Abstract: A method by which a station (STA) receives a frame in a wireless (WLAN) according to an embodiment of the present disclosure includes: receiving a first wake-up frame through wake-up radio (WUR); monitoring primary connectivity radio (PCR) according to reception of the first wake-up frame; and receiving a PCR beacon frame through the PCR, wherein the STA maintains monitoring of the WUR for a predetermined period while monitoring the PCR and ends monitoring of the WUR when the STA detects a second wake-up frame indicating transmission of unicast data through the WUR or succeeds in transmitting an uplink (UL) PCR frame to an access point (AP) even before the predetermined period has elapsed.

公开(公告)号：US11190972B2

公开(公告)日：2021-11-30

申请号：US16078005

申请日：2017-02-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04W28/02 ,  H04W72/12 ,  H04B7/0452 ,  H04W72/10

Abstract: A method for performing uplink transmission in a wireless LAN system according to an embodiment of the present specification may comprise the steps of: receiving, by an AP, a buffer state report frame from a reception STA coupled to the AP, wherein the buffer state report frame is a frame in which a first frame and a second frame are aggregated, the first frame including a first traffic identifier indicating a transmission priority of a first traffic buffered in the reception STA and first queue size information indicating the amount of the buffered first traffic, and the second frame including a second traffic identifier indicating a transmission priority of a second traffic buffered in the reception STA and second queue size information indicating the amount of the buffered second traffic; and transmitting, by the AP, a trigger frame for a plurality of user STAs participating in UL MU transmission on the basis of a buffer state report frame.

公开(公告)号：US11166236B2

公开(公告)日：2021-11-02

申请号：US16641503

申请日：2019-03-25

Applicant: LG Electronics Inc.

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

IPC: H04W52/02 ,  H04W76/11 ,  H04W84/12

Abstract: A method in a wireless local area network (WLAN) system is performed by a first wireless terminal and includes: receiving a wake-up radio (WUR) mode request frame from a second wireless terminal; allocating first identification information for the second wireless terminal, wherein the first identification information is configured based on a value obtained by adding a first value related to a transmitter identifier (TXID) of the first wireless terminal and a second value related to an association identifier (AID) of the second wireless terminal; determining whether the first identification information coincides with pre-allocated one or more pieces of second identification information; reallocating a value randomly selected from among predetermined candidate values to the first identification information; and transmitting a WUR mode response frame including the re-allocated first identification information to the second wireless terminal.

公开(公告)号：US11140629B2

公开(公告)日：2021-10-05

申请号：US16337385

申请日：2017-09-22

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W72/04 ,  H04W84/12 ,  H04W88/08

Abstract: A method for power management in a wireless LAN system, according to one embodiment of the present specification, comprises the steps of: transmitting a first wake-up packet for a first WUR terminal and a second WUR terminal, wherein the first wake-up packet instructs a first main radio module and a second main radio module to enter into an activation state, and the first wake-up packet includes a first payload, which is modulated according to an On-Off Keying (OOK) method for the first WUR module, and a second payload, which is modulated according to the OOK method for the second WUR module; transmitting a plurality of downlink packets for the first WUR terminal and the second WUR terminal when a preset guard time has elapsed; determining whether at least one acknowledgement packet is received from the first WUR terminal and the second WUR terminal in response to a plurality of downlink packets within a preset retransmission time limit; and transmitting a second wake-up packet according to the determination.

公开(公告)号：US11019507B2

公开(公告)日：2021-05-25

申请号：US16091514

申请日：2017-03-03

Applicant: LG ELECTRONICS INC.

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

IPC: H04W24/02 ,  H04L1/16 ,  H04W24/08 ,  H04W84/12

Abstract: Disclosed is a signal processing method for changing an operating mode for transmitting a PPDU in a wireless LAN system. Specifically, a first station transmits, to a second station, the number of spatial streams supported by the first station, and a first instructional information instructing a change of the operating mode indicating a channel bandwidth. The first station applies the first instructional information after receiving an ACK therefor. The first instructional information comprises an operating mode indicator for indicating whether the operating mode is a receive operating mode (ROM) or a transmit operating mode (TOM).

公开(公告)号：US10582497B2

公开(公告)日：2020-03-03

申请号：US16230496

申请日：2018-12-21

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Kiseon Ryu ,  Wookbong Lee ,  Jinsoo Choi ,  Hangyu Cho ,  Jeongki Kim ,  Giwon Park

IPC: H04W72/04 ,  H04W74/08 ,  H04L5/00 ,  H04L27/26 ,  H04W84/12

Abstract: A method and a device for transmitting a frame in a wireless LAN are disclosed. A method for transmitting a data unit in a wireless LAN can comprise the steps of: transmitting, by an AP, an RTS frame for medium protection to a plurality of STAs through a plurality of channels; receiving, by the AP, a CTS frame in response to the RTS frame from each of the plurality of STAs through a first allocation channel, wherein the first allocation channel is at least one of the plurality of channels, which is determined on the basis of the RTS frame; and transmitting, by the AP, downlink data to each of the plurality of STAs through a second allocation channel on the basis of OFDMA in overlapped time resources, wherein the second allocation channel is at least one of the plurality of channels.

公开(公告)号：US10548154B2

公开(公告)日：2020-01-28

申请号：US16395963

申请日：2019-04-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/16 ,  H04L1/18 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W72/12 ,  H04W84/12 ,  H04W88/08

Abstract: The present document relates to a method for efficiently performing uplink multi-user transmission in a wireless LAN system and an apparatus therefor. To this end, an access point (AP) may transmit a downlink multi-user frame to a plurality of STAs, receive an uplink frame including an acknowledgement/non-acknowledgement (ACK/NACK) signal for the downlink multi-user frame and an uplink scheduling request signal from at least two STAs among the STAs, transmit a downlink frame including uplink scheduling information to the at least two STAs on the basis of the uplink scheduling request signal, and receive an uplink multi-user frame including data from the at least two STAs in response thereto. Here, an SIG field of the downlink frame preferably comprises an indicator indicating that the downlink frame includes uplink multi-user scheduling information.