公开(公告)号：US20190342885A1

公开(公告)日：2019-11-07

申请号：US16518601

申请日：2019-07-22

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Jeongki KIM ,  Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO ,  Jinmin KIM ,  Eunsung PARK

IPC: H04W72/04 ,  H04W4/70 ,  H04L1/06 ,  H04L5/00 ,  H04L1/00 ,  H04W84/12 ,  H04W28/10 ,  H04W72/08

Abstract: Disclosed herein is an operating method of a station (STA) in a wireless LAN (WLAN) system. The method includes receiving a downlink (DL) physical protocol data unit (PPDU) and sending an uplink (UL) PPDU as a response to the DL PPDU. The DL PPDU may include at least one MAC protocol data unit (MPDU) and the at least one MPDU may include a first high efficiency (HE) control field. The UL PPDU may include at least one MAC protocol data unit (MPDU) and the at least one MPDU may include a second high efficiency (HE) control field. The each of the first and second HE control fields corresponds to an HT control field and comprises a plurality of aggregated HE control subfield. The HT control field includes VHT subfield value set to “1” and HE subfield value set to “1”.

公开(公告)号：US20190326972A1

公开(公告)日：2019-10-24

申请号：US16476258

申请日：2019-03-28

Applicant: LG ELECTRONICS INC.

Inventor： Sunwoong YUN ,  Jinmin KIM ,  Sungjin PARK ,  Jinsoo CHOI

IPC: H04B7/06 ,  H04B7/0413

Abstract: Proposed are a method and apparatus for transmitting a feedback frame in a wireless LAN (WLAN) system. Specifically, a first station (STA) generates a feedback frame based on a multi input multi output (MIMO) beamforming procedure. The first STA transmits the feedback frame to a second STA. The feedback frame is transmitted through an aggregated channel in which a first channel and a second channel are aggregated. The feedback frame includes a first beamforming feedback matrix transmitted on the first channel and a second beamforming feedback matrix transmitted on the second channel. The feedback frame includes a third beamforming feedback matrix when the feedback frame is not transmitted through the aggregated channel. The number of columns of the third beamforming feedback matrix is set to Nc, and the number of rows of the third beamforming feedback matrix is set to Nr. Nc is determined based on the total number of spatial streams supported by the first STA. The number of columns of the first beamforming feedback matrix is set to Nc/2, and the number of rows of the first beamforming feedback matrix is set to Nr/2. The number of columns of the second beamforming feedback matrix is set to Nc/2, and the number of rows of the second beamforming feedback matrix is set to Nr/2.

公开(公告)号：US20190246302A1

公开(公告)日：2019-08-08

申请号：US16332339

申请日：2018-11-26

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin PARK ,  Jinmin KIM ,  Sunwoong YUN ,  JInsoo CHOI

IPC: H04W24/08

Abstract: The present specification discloses a method for transmitting and receiving channel measurement information in a wireless local area network (WLAN) system and a device for the same.More specifically, the present specification describes a method for transmitting and receiving channel measurement information to support a time division duplex (TDD) scheduling scheme, which is a method for transmitting and receiving channel measurement information based on channel measurement per time unit different from that in a conventional method, and a device for the same.

公开(公告)号：US20190215702A1

公开(公告)日：2019-07-11

申请号：US16325693

申请日：2018-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Sunwoong YUN ,  Jinmin KIM ,  Sungjin PARK ,  Jinsoo CHOI

IPC: H04W16/28 ,  H04B7/06 ,  H04L27/26 ,  H04W72/04

CPC classification number: H04W16/28 ,  H04B7/0695 ,  H04L1/06 ,  H04L5/0007 ,  H04L27/26 ,  H04L27/2607 ,  H04W72/046 ,  H04W84/12

Abstract: The present specification proposes a method for transmitting and receiving a signal, and an apparatus therefor, and more specifically, a method for transmitting, by a first station (STA), a signal to a second STA in a wireless LAN (WLAN) system, the method comprising the steps of: generating a training field including a basic training subfield for each spatial-temporal stream and a training subfield for each spatial-temporal stream on the basis of the total number of spatial-temporal streams, wherein the basic training subfield for each spatial-temporal stream is composed of M (M is a natural number) orthogonal frequency division multiplexing (OFDM) symbols on the basis of the information indicated by a header field; and transmitting a signal including the header field and the training field to the second STA through a corresponding spatial-temporal stream.

公开(公告)号：US20190182089A1

公开(公告)日：2019-06-13

申请号：US16326165

申请日：2018-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Sunwoong YUN ,  Jinmin KIM ,  Sungjin PARK ,  Jinsoo CHOI

IPC: H04L27/26

Abstract: The present specification relates to a method for transmitting and receiving signals in a wireless local area network (WLAN) system and an apparatus therefor, the method comprising the steps of: generating a training sub-field consisting of a certain number of orthogonal frequency division multiplexing (OFDM) symbols; and transmitting, to a second STA, a signal including a header field and the training sub-field, wherein the transmitted signal is repeatedly transmitted T times (where T is a natural number) on the basis of information indicated by the header field after a data field.

公开(公告)号：US20190141747A1

公开(公告)日：2019-05-09

申请号：US16094168

申请日：2017-04-17

Applicant: LG ELECTRONICS INC.

Inventor： Saehee BANG ,  Kiseon RYU ,  Jeongki KIM ,  Hangyu CHO ,  Jinmin KIM

IPC: H04W74/08 ,  H04B7/0404 ,  H04W72/04

Abstract: A method for multi-user transmission in a wireless LAN system according to one embodiment of the present specification comprises the steps of: individually performing, by a STA including a first directional antenna and a second directional antenna, a first countdown procedure for the first directional antenna and a second countdown procedure for the second directional antenna according to a directional CCA operation for the first and second directional antennas; determining the first directional antenna as a primary antenna when the first countdown procedure is completed before the second countdown procedure; determining whether the second directional antenna is idle from a threshold time before a completion time point of the first countdown procedure to the completion time point; and transmitting multiple streams on the basis of the first and second directional antennas according to the result of the determination.

公开(公告)号：US20190097854A1

公开(公告)日：2019-03-28

申请号：US16083320

申请日：2017-03-09

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin PARK ,  Kyungtae JO ,  Jinmin KIM ,  Hangyu CHO

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

Abstract: The present specification relates to a method for transmitting a signal by a station in a wireless LAN (WLAN) system. More specifically, the present specification proposes a frequency division multiple access (FDMA) frame structure for transmitting, by a station, a signal to a plurality of stations by using an FDMA method, and presents a method for transmitting a signal on the basis of the FDMA frame structure and a device therefor.

公开(公告)号：US20190068396A1

公开(公告)日：2019-02-28

申请号：US16083864

申请日：2017-03-09

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin PARK ,  Kyungtae JO ,  Jinmin KIM ,  Hangyu CHO

IPC: H04L12/28 ,  H04L27/26

Abstract: The present invention relates to a method for transmitting and receiving, by a station, signals in a wireless WLAN system. More particularly, the present specification proposes a frame structure for transmitting signals by bonding a plurality of channels by the station, and a method for transmitting and receiving signals on the basis of the same frame structure, and an apparatus therefor.

公开(公告)号：US20180219666A1

公开(公告)日：2018-08-02

申请号：US15520687

申请日：2015-05-19

Applicant: LG ELECTRONICS INC.

Inventor： Eunjong LEE ,  Jaehoon CHUNG ,  Genebeck HAHN ,  Jinmin KIM ,  Kukheon CHOI ,  Kwangseok NOH ,  Sangrim LEE

IPC: H04L5/00 ,  H04L5/14 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04L5/0087 ,  H04L1/00 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0092 ,  H04L5/14 ,  H04W52/34 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/1273 ,  H04W72/1289

Abstract: A method for transmitting and receiving data in a wireless communication system and an apparatus for the method are disclosed. More specifically, The present invention provides a method for transmitting downlink data in a wireless communication system can comprise mapping, by a eNB, first downlink data into a physical downlink shared channel (PDSCH) region according to a radio frame structure based on a first transmission time interval (TTI), mapping, by the eNB, second downlink data to a short PDSCH (sPDSCH) region according to a radio frame structure based on a second TTI, and transmitting, by the eNB, the first and the second downlink data.

公开(公告)号：US20180070344A1

公开(公告)日：2018-03-08

申请号：US15559781

申请日：2016-07-07

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Jinsoo CHOI ,  Hangyu CHO ,  Jinmin KIM ,  Eunsung PARK

IPC: H04W72/04

CPC classification number: H04W72/0406 ,  H04B7/0452 ,  H04B7/26 ,  H04L1/00 ,  H04L1/0008 ,  H04L1/0059 ,  H04L1/246 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0082 ,  H04L5/0094 ,  H04L27/2602 ,  H04W72/042 ,  H04W84/12 ,  H04W88/08

Abstract: A method for transmitting a frame by an AP includes generating and transmitting a radio frame including a signaling field and a data field. The signaling field includes a SIG A field including first common control information for the plurality of STAs, and a SIG B field including specific control information for each of the plurality of STAs. The second signaling field includes a common field including second common control information for the plurality of STAs, and a specific field following the common field, including the specific control information for each of the plurality of STAs, and the specific field of the second signaling field transmitted in a specific 20-MHz band includes resource allocation information for one or more first-band STAs to which resources are allocated in the first band, and resource allocation information for one or more second-band STAs to which resources are allocated in another 20-MHz band.