公开(公告)号：US20200037331A1

公开(公告)日：2020-01-30

申请号：US16557156

申请日：2019-08-30

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Hangyu CHO ,  Kiseon RYU ,  Jinsoo CHOI ,  Wookbong LEE ,  Dongguk LIM

IPC: H04W72/08 ,  H04L1/00 ,  H04L1/16 ,  H04L5/00 ,  H04L27/34 ,  H04L27/26 ,  H04W74/04 ,  H04W84/04

Abstract: A method for receiving data performed by a non-Access Point (AP) station (STA) in a Wireless Local Area Network (WLAN) system is discussed. The method includes receiving, from an AP STA, a Multi User (MU) Physical Protocol Data Unit (PPDU); and transmitting, to the AP STA, a data frame based on the MU PPDU. Further, the MU PPDU includes a physical preamble and a data field sequentially.

公开(公告)号：US20200008089A1

公开(公告)日：2020-01-02

申请号：US16476026

申请日：2019-04-10

Applicant: LG ELECTRONICS INC.

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

IPC: H04W24/10 ,  H04B7/0426 ,  H04W84/12 ,  H04W52/42 ,  H04W52/58

Abstract: Provided are a method and apparatus for transmitting a frame in a wireless LAN (WLAN) system. Specifically, a first station (STA) transmits a Link Measurement Request frame requesting Transmit Power Control (TPC) information to a second STA. The first STA receives a Link Measurement Report frame from the second STA. The Link Measurement Report frame being transmitted as a response to the Link Measurement Request frame. The Link Measurement Request frame includes a TPC Configuration field. The TPC Configuration field includes a first sub-field and a second sub-field. The first sub-field includes information on whether or not the Link Measurement Request frame is transmitted through a channel on which channel aggregation is performed. The second sub-field includes information on a number of transmit chains being used for transmitting the Link Measurement Request frame. If the Link Measurement Request frame is transmitted through the channel on which the channel aggregation is performed, the number of transmit chains is equal to an even number.

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：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：US20190182835A1

公开(公告)日：2019-06-13

申请号：US16275248

申请日：2019-02-13

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Hangyu CHO ,  Wookbong LEE

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/08

CPC classification number: H04W72/0453 ,  H04L5/0037 ,  H04W72/042 ,  H04W72/08 ,  H04W84/12

Abstract: Disclosed is a method and apparatus for allocating a wireless resource in order to prevent interference in a wireless LAN. A method for allocating a wireless resource in a wireless LAN may comprise the steps of: allocating, by an AP, a plurality of wireless resources for a plurality of STAs included in a BSS, in the entire bandwidth, respectively; and transmitting, by the AP, a PPDU to the plurality of STAs through the plurality of wireless resources, respectively, wherein each of the plurality of wireless resources is a combination of a plurality of wireless units defined in different sizes on a frequency axis, and each of the plurality of wireless resources can be determined in consideration of the size of the bandwidth of at least one STA supporting a bandwidth smaller than the size of the entire bandwidth from among the plurality of STAs.

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：US20190165883A1

公开(公告)日：2019-05-30

申请号：US15742437

申请日：2016-07-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/00 ,  H04W74/00 ,  H04W72/12 ,  H04W72/04

Abstract: An embodiment of the present invention suggests a method in which an access point (AP) obtains channel quality information in a wireless LAN system. The AP transmits, to at least one station (STA), a null data packet announcement (NDP-A) frame including information on transmission of a subsequent null data packet (NDP) frame, and transmits an NDP frame to the at least one station on the basis of information on the NDP-A frame. Further, the AP receives, from the at least one STA, a feedback frame including downlink channel quality information. At this time, the NDP frame includes an L-part for a legacy STA and a high efficiency (HE)-part for a HE STA, wherein the HE-part consists of a HE-signaling A (HE-SIG A) field, a HE-short training field (HE-STF), and a HE-long training field (HE-LTF).

公开(公告)号：US20190124638A1

公开(公告)日：2019-04-25

申请号：US15571797

申请日：2016-03-14

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Jinsoo CHOI ,  Hangyu CHO ,  Eunsung PARK ,  Wookbong LEE

IPC: H04W72/04

Abstract: According to one embodiment of the present invention, an AP generates a frame including a signaling field and a data field so as to transmit the frame to one or more STAs, wherein: the signaling field includes a first signaling field having first common control information on the one or more STAs, and a second signaling field having individual control information for each of the one or more STAs; and the second signaling field includes a common field having second common control information on the one or more STAs, and individual fields having individual control information for each of the one or more STAs. In addition, if the frame is transmitted with a bandwidth of 40 MHz or more, the second signaling field transmits independent control information in two adjacent 20 MHz bands.

公开(公告)号：US20180254871A1

公开(公告)日：2018-09-06

申请号：US15753917

申请日：2016-08-19

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04L5/0053 ,  H04L5/00 ,  H04L27/2602 ,  H04L27/265 ,  H04L27/2666 ,  H04W72/0453 ,  H04W84/12

Abstract: Proposed is an example relating to a control field used in a PPDU of a wireless LAN system which supports a plurality of RUs. The PPDU comprises a plurality of SIG-B fields and a plurality of data fields. Each SIG-B field and each data field correspond to any one of a plurality of 20 MHz. Each of the plurality of data fields can be allocated or indicated by any one of the plurality of SIG-B fields. The mapping relationship between the data fields and the SIG-B fields can be indicated by a mapping rule. The mapping rule can be indicated by the SIG-B fields.