公开(公告)号：US20140169356A1

公开(公告)日：2014-06-19

申请号：US14186572

申请日：2014-02-21

Applicant: LG ELECTRONICS INC.

Inventor： Yu Jin NOH ,  Byeong Woo KANG ,  Dae Won LEE ,  Yong Ho SEOK

IPC: H04W28/20 ,  H04W88/02

CPC classification number: H04W72/0446 ,  H04B7/0452 ,  H04W28/20 ,  H04W72/04 ,  H04W72/0406 ,  H04W74/0808 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

Abstract: A station and method for transmitting a data frame in a wireless local area network are provided. The method includes obtaining, by the station, a transmission opportunity (TXOP) for a bandwidth, the TXOP indicating an interval of time when the station has a right to exchange frame sequences; selecting, by the station, a transmit bandwidth parameter of a non-initial data unit of a plurality of data units from available bandwidth parameters, wherein the available bandwidth parameters include a first available bandwidth parameter which is same as a transmit bandwidth parameter of a preceding data unit of the plurality of data units and a second available bandwidth parameter which is narrower than a transmit bandwidth parameter of the preceding data unit; and transmitting, by the station during the TXOP, the non-initial data unit according to the transmit bandwidth parameter of the non-initial data unit.

Abstract translation: 提供了一种用于在无线局域网中发送数据帧的站和方法。 所述方法包括由所述站获取用于带宽的传输机会（TXOP），所述TXOP指示所述站有权交换帧序列的时间间隔; 由所述站从可用带宽参数中选择多个数据单元的非初始数据单元的发射带宽参数，其中所述可用带宽参数包括与前一个的发射带宽参数相同的第一可用带宽参数 多个数据单元的数据单元和比前一个数据单元的发送带宽参数更窄的第二可用带宽参数; 以及所述站在所述TXOP期间根据所述非初始数据单元的发送带宽参数发送所述非初始数据单元。

公开(公告)号：US20140140311A1

公开(公告)日：2014-05-22

申请号：US14166602

申请日：2014-01-28

Applicant: LG ELECTRONICS INC.

Inventor： Dae Won LEE ,  Dong Wook ROH ,  Byeong Woo KANG ,  Yong Ho SEOK ,  Yu Jin NOH ,  Bong Hoe KIM

IPC: H04L5/00 ,  H04W84/12

CPC classification number: H04B7/0452 ,  H04B7/0671 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0226 ,  H04L25/03343 ,  H04W84/12

Abstract: There is provided a method of transmitting control information in a Wireless Local Area Network (WLAN) system, comprising transmitting first control information by means of cyclic shift delay diversity beam-forming and transmitting second control information. The first control information comprises information necessary for each of a plurality of target stations of the second control information to receive the second control information. The second control information beamformed and transmitted to the plurality of target stations.

Abstract translation: 提供了一种在无线局域网（WLAN）系统中发送控制信息的方法，包括：通过循环移位延迟分集波束形成和发送第二控制信息来发送第一控制信息。 第一控制信息包括用于接收第二控制信息的第二控制信息的多个目标站中的每一个所需的信息。 第二控制信息波束形成并发送到多个目标站。

公开(公告)号：US20130343341A1

公开(公告)日：2013-12-26

申请号：US14012808

申请日：2013-08-28

Applicant: LG ELECTRONICS INC.

Inventor： Eun Sun KIM ,  Yong Ho SEOK ,  Dae Won LEE

IPC: H04W72/04

Abstract: A method and apparatus of requesting a channel access in a wireless local area network is provided. A transmitter transmits a plurality of Request To Send (RTS) frames over a plurality of requesting channels and receives at least one Clear To Send (CTS) frame over at least one responding channel as a response for the plurality of RTS frames. Each of the plurality of RTS frames indicates a bandwidth for the plurality of requesting channels, and the at least one CTS frame indicates a bandwidth for the at least one responding channel.

Abstract translation: 提供一种在无线局域网中请求信道接入的方法和装置。 发射机通过多个请求信道发送多个请求发送（RTS）帧，并通过至少一个响应信道接收至少一个清除发送（CTS）帧作为多个RTS帧的响应。 所述多个RTS帧中的每一个指示所述多个请求信道的带宽，并且所述至少一个CTS帧指示所述至少一个响应信道的带宽。

公开(公告)号：US20130336257A1

公开(公告)日：2013-12-19

申请号：US13943572

申请日：2013-07-16

Applicant: LG ELECTRONICS INC.

Inventor： Dae Won LEE ,  Dong Wook ROH ,  Byeong Woo KANG ,  Yong Ho SEOK ,  Yu Jin NOH ,  Bong Hoe KIM

IPC: H04W84/12

CPC classification number: H04L27/261 ,  H03M5/12 ,  H04B7/0413 ,  H04L1/0041 ,  H04L1/0061 ,  H04L25/4904 ,  H04L27/14 ,  H04L27/144 ,  H04L27/148 ,  H04L27/1563 ,  H04L27/22 ,  H04L27/2273 ,  H04L27/2331 ,  H04L27/2332 ,  H04L27/2613 ,  H04L27/2647 ,  H04L2027/0028 ,  H04N5/4401 ,  H04Q1/46 ,  H04W28/06 ,  H04W84/12

Abstract: A method of transmitting a Physical Layer Convergence Procedure (PLCP) frame in a Very High Throughput (VHT) Wireless Local Area Network (WLAN) system includes generating a MAC Protocol Data Unit (MPDU) to be transmitted to a destination station (STA), generating a PLCP Protocol Data Unit (PPDU) by adding a PLCP header, including an L-SIG field containing control information for a legacy STA and a VHT-SIG field containing control information for a VHT STA, to the MPDU, and transmitting the PPDU to the destination STA. A constellation applied to some of Orthogonal Frequency Division Multiplex (OFDM) symbols of the VHT-SIG field is obtained by rotating a constellation applied to an OFDM symbol of the L-SIG field.

公开(公告)号：US20200228938A1

公开(公告)日：2020-07-16

申请号：US16837743

申请日：2020-04-01

Applicant: LG ELECTRONICS INC.

Inventor： Dae Won LEE ,  Yong Ho SEOK

IPC: H04W4/08 ,  H04B7/0452 ,  H04W72/04 ,  H04W84/12 ,  H04W72/12

Abstract: A method of transmitting a spatial stream for multi user (MU)-multiple input multiple output (MIMO) in a wireless local area network system and a transmitter for performing the method are provided. The method includes transmitting, to a receiver, a management frame including group information to assign or change a position of a plurality of spatial streams corresponding to each of a plurality of groups, and transmitting, to the receiver, a frame including at least one spatial stream, wherein the group information includes a plurality of group indicators and a plurality of spatial stream (SS) indicators, each of the plurality of group indicators indicating whether the receiver is a member of each of the plurality of groups, each of the plurality of SS indicators indicating a position of the plurality of spatial streams corresponding to each of the plurality of groups.

公开(公告)号：US20190274140A1

公开(公告)日：2019-09-05

申请号：US16415431

申请日：2019-05-17

Applicant: LG ELECTRONICS INC.

Inventor： Yu Jin NOH ,  Byeong Woo KANG ,  Dae Won LEE ,  Yong Ho SEOK

IPC: H04W72/04 ,  H04W28/20 ,  H04W88/02 ,  H04W74/08 ,  H04W84/12 ,  H04B7/0452

Abstract: A method of transmitting a plurality of data units by a station in a wireless local area network (WLAN), includes performing, by the station, a clear channel assessment (CCA) on a bandwidth of an initial data unit of the plurality of data units; after performing the CCA, transmitting, by the station which has obtained a transmission opportunity (TXOP) for the plurality of data units, the initial data unit of the plurality of data units during the TXOP, wherein the initial data unit comprises a signal field including information on the bandwidth of the initial data unit; selecting, by the station, a bandwidth of a non-initial data unit of the plurality of data units to be narrower than the bandwidth of the initial data unit; and transmitting, by the station during the TXOP, the non-initial data unit, wherein the non-initial data unit comprises a signal field including information on the bandwidth of the non-initial data unit.

公开(公告)号：US20180006789A1

公开(公告)日：2018-01-04

申请号：US15689117

申请日：2017-08-29

Applicant: LG ELECTRONICS INC.

Inventor： Dae Won LEE ,  Ill Soo SOHN ,  Yong Ho SEOK

IPC: H04L5/00 ,  H04W84/12 ,  H04L1/18 ,  H04B7/06 ,  H04W16/28 ,  H04B7/0452

CPC classification number: H04L5/0053 ,  H04B7/0452 ,  H04B7/0636 ,  H04L1/1812 ,  H04L5/0023 ,  H04W16/28 ,  H04W84/12

Abstract: A method is provided for channel sounding in a wireless local area network. A responding station receives a null data packet announcement (NDPA) frame and a null data packet (NDP) frame for the channel sounding from a requesting station. The NDP frame follows the NDPA frame. The responding station receives a first poll frame from the requesting station. In response to the first poll frame, the responding station transmits a first feedback data field including beamforming feedback information and signal to noise ratio (SNR) information to the requesting station. The responding station receives a second poll frame including a segment retransmission bitmap field indicating at least one segment of the first feedback data field from the requesting station. In response to the second poll frame, the responding station transmits a second feedback data field including the at least one segment of the first feedback data field to the requesting station.

公开(公告)号：US20170288836A1

公开(公告)日：2017-10-05

申请号：US15625794

申请日：2017-06-16

Applicant: LG ELECTRONICS INC.

Inventor： Byeong Woo KANG ,  Dong Wook ROH ,  Yong Ho SEOK ,  Yu Jin NOH ,  Bong Hoe KIM ,  Dae Won LEE

IPC: H04L5/00

Abstract: A method of transmitting a training signal in a Wireless Local Area Network (WLAN) system includes generating one or more first training signals for a first destination station and one or more second training signals for a second destination station by applying a mapping matrix P to a training signal generation sequence, mapping the first training signals and the second training signals to a plurality of antennas according to an antenna mapping matrix, and performing Inverse Fast Fourier Transform (IFFT) on each of the first training signals and the second training signals mapped to the plurality of antennas and transmitting the training signals through the plurality of antennas.

公开(公告)号：US20170164401A1

公开(公告)日：2017-06-08

申请号：US15439666

申请日：2017-02-22

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho SEOK

IPC: H04W74/00 ,  H04W52/58 ,  H04W28/02

CPC classification number: H04W74/006 ,  H04W28/0236 ,  H04W28/0268 ,  H04W52/58 ,  H04W72/046 ,  H04W74/004 ,  H04W84/12

Abstract: A space division multiple access (SDMA) method is provided. The method may be performed by a station (STA), in a wireless local area network (WLAN) system. The method includes overhearing a third transmission response message transmitted by an access point (AP), and determining whether to access a channel on the basis of criteria information included in the third transmission response message.

公开(公告)号：US20170155433A1

公开(公告)日：2017-06-01

申请号：US15428757

申请日：2017-02-09

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho SEOK

IPC: H04B7/0452 ,  H04L5/00 ,  H04L1/00 ,  H04W72/04

CPC classification number: H04B7/0452 ,  H04L1/0061 ,  H04L5/0046 ,  H04L27/2602 ,  H04L69/22 ,  H04W28/18 ,  H04W72/0446 ,  H04W84/12 ,  H04W88/08

Abstract: A method of multi user multiple input multiple output (MU-MIMO) communication in a wireless local area network (WLAN) system, the method being performed by a transmitting device and including generating, by the transmitting device, an Aggregate-Medium Access Control Protocol Data Unit (A-MPDU) comprising an A-MPDU subframe which includes a Medium Access Control Protocol Data Unit (MPDU) delimiter field and an MPDU; generating, by the transmitting device, a Physical Layer Protocol Data Unit (PPDU) including the A-MPDU by using a guard interval, wherein the guard interval used for the PPDU is selected by the transmitting device among a short guard interval and a long guard interval, wherein the guard interval used for the PPDU is selected to be the short guard interval when the PPDU is generated for a plurality of receiving devices and all of the plurality of receiving devices support the short guard interval; and transmitting, by the transmitting device, the PPDU to the plurality of receiving devices.