公开(公告)号：US11218845B2

公开(公告)日：2022-01-04

申请号：US16837743

申请日：2020-04-01

申请人： LG ELECTRONICS INC.

发明人： Dae Won Lee ,  Yong Ho Seok

IPC分类号： H04L1/02 ,  H04L27/06 ,  H04W4/08 ,  H04B7/0452 ,  H04W72/04 ,  H04W84/12 ,  H04W72/12

摘要： 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：US10530543B2

公开(公告)日：2020-01-07

申请号：US15625794

申请日：2017-06-16

申请人： LG ELECTRONICS INC.

发明人： Byeong Woo Kang ,  Dong Wook Roh ,  Yong Ho Seok ,  Yu Jin Noh ,  Bong Hoe Kim ,  Dae Won Lee

IPC分类号： H04L5/00 ,  H04W99/00 ,  H04L27/26 ,  H04W84/12

摘要： 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：US10334595B2

公开(公告)日：2019-06-25

申请号：US15727066

申请日：2017-10-06

申请人： LG ELECTRONICS INC.

发明人： Yu Jin Noh ,  Byeong Woo Kang ,  Dae Won Lee ,  Yong Ho Seok

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

摘要： A method is provided for transmitting a signal by a station in a wireless local area network (WLAN). The station obtains a transmission opportunity (TXOP) indicating a time duration used for transmission of a plurality of data units. The station transmits, during the TXOP, an initial data unit of the plurality of data units. The initial data unit comprises a control field indicating a transmit bandwidth of the initial data unit. The station selects a transmit bandwidth of a non-initial data unit of the plurality of data units to be narrower than the transmit bandwidth of the initial data unit. The station transmits, during the TXOP, the non-initial data unit. The non-initial data unit comprises a control field indicating the transmit bandwidth of the non-initial data unit.

公开(公告)号：US10206070B2

公开(公告)日：2019-02-12

申请号：US15707328

申请日：2017-09-18

申请人： LG ELECTRONICS INC.

发明人： Byoung Hoon Kim ,  Yong Ho Seok ,  Andrey Lyakhov

IPC分类号： H04W4/08 ,  H04W72/04 ,  H04W84/12 ,  H04L5/00 ,  H04L25/02 ,  H04B7/06 ,  H04W24/00 ,  H04W72/12 ,  H04W74/02

摘要： A method of transmitting data in a wireless local access network, the method includes transmitting, by an access point (AP), a request-to-send (RTS) frame to a plurality of receiving stations, the RTS frame including recipient information and channel information, the recipient information indicating the plurality of receiving stations, the channel information indicating a plurality of subchannels allocated to the plurality of receiving stations; receiving, by the AP, a plurality of clear-to-send (CTS) frames from the plurality of receiving stations as a response to the RTS frame, each CTS frame being received through at least one subchannel allocated to a corresponding one of the plurality of receiving stations; and transmitting, by the AP, a physical layer protocol data unit (PPDU) to the plurality of receiving stations, the PPDU including address information indicating the plurality of receiving stations and a plurality of Aggregate-Medium Access Control (MAC) Protocol Data Units (A-MPDUs) for the plurality of receiving stations.

公开(公告)号：US10122499B2

公开(公告)日：2018-11-06

申请号：US15698555

申请日：2017-09-07

申请人： LG ELECTRONICS INC.

发明人： Yu Jin Noh ,  Dae Won Lee ,  Yong Ho Seok

IPC分类号： H04L1/16 ,  H04L1/00

摘要： The present invention relates to a method and apparatus for acknowledgement (ACK) transmission in a WLAN. A station receives a plurality of data frames from a plurality of other stations and then transmits an ACK for the plurality of data frames to the plurality of stations. The ACK is a multi-user (MU) block ACK frame which includes a plurality of block ACKs for the plurality of stations. One block ACK includes at least one ACK for at least one data frame that is received from one station.

公开(公告)号：US10045298B2

公开(公告)日：2018-08-07

申请号：US15617124

申请日：2017-06-08

申请人： LG Electronics Inc.

发明人： Yong Ho Seok ,  Hyang Sun You ,  Jong Hyun Park

IPC分类号： H04W52/02 ,  H04W74/08 ,  H04W84/12 ,  H04L12/825 ,  H04W76/28

摘要： The present invention relates to methods of transmitting and receiving a frame, which are performed by a station operating in a power save mode in a wireless LAN system. The method includes: transmitting a poll frame requesting the transmission of a buffered frame to an access point AP, wherein the poll frame includes a sustain time field that indicates a service section; and receiving at least one buffered frame from the AP within the sustain time in response to the poll frame. A method is provided for transmitting and receiving a frame executed by a station (STA) operating in a power sub mode in a wireless LAN system. The method includes transmitting a first poll frame requesting the transmission of a buffered frame to an access point AP, receiving an acknowledgement ACK frame in response to the first poll frame, and receiving at least one buffered frame from the AP.

公开(公告)号：US10033841B2

公开(公告)日：2018-07-24

申请号：US15436473

申请日：2017-02-17

申请人： LG ELECTRONICS INC.

发明人： Yong Ho Seok ,  Hyang Sun You ,  Jong Hyun Park

IPC分类号： H04L29/06 ,  H04L5/00 ,  H04L27/26 ,  H04W74/00 ,  H04L29/08 ,  H04L1/00 ,  H04L1/16 ,  H04W48/20 ,  H04W84/12

摘要： Disclosed are a method and an apparatus for indicating a frame type using a physical layer convergence protocol header. A method for determining a frame type using a PLCP header may comprise: a step of demodulating a frame type contained in an SIG of the PLCP header so as to acquire information indicating a physical service data unit (PSDU) of a frame; and a step of acquiring frame information required for demodulating the frame contained in the SIG dependently on the information indicating PSDU. Thus, unnecessary information may not be additionally demodulated to thereby improve demodulation efficiency and reduce unnecessary power consumption.

公开(公告)号：US09974098B2

公开(公告)日：2018-05-15

申请号：US15439666

申请日：2017-02-22

申请人： LG ELECTRONICS INC.

发明人： Yong Ho Seok

IPC分类号： H04W74/00 ,  H04W28/02 ,  H04W52/58 ,  H04W84/12

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

摘要： 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：US09876882B2

公开(公告)日：2018-01-23

申请号：US15397453

申请日：2017-01-03

申请人： LG ELECTRONICS INC.

发明人： Dae Won Lee ,  Yu Jin Noh ,  Byeong Woo Kang ,  Yong Ho Seok

IPC分类号： H04L29/08 ,  H04B7/0452 ,  H04L27/26 ,  H04W84/12

CPC分类号： H04L69/323 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/06 ,  H04L27/2626 ,  H04L27/2646 ,  H04L27/2647 ,  H04L27/28 ,  H04W84/12

摘要： A method for transmitting data in a wireless local area network, the method comprising: receiving, by a receiving station, a physical layer protocol data unit (PPDU) from a transmitting station, the PPDU including a signal-A field, the signal-A field including a bandwidth in which the PPDU is received, decoding the PPDU, wherein, when the PPDU is used for single-user (SU) transmission, the PPDU is decoded with assuming that the PPDU does not include a signal-B field, and, when the PPDU is used for multi-user (MU) transmission, the PPDU is decoded with assuming that the PPDU include the signal-B field, and wherein the signal-B field includes a modulation and coding scheme (MCS) used for the receiving station.

公开(公告)号：US09860877B2

公开(公告)日：2018-01-02

申请号：US15142379

申请日：2016-04-29

申请人： LG ELECTRONICS INC.

发明人： Yu Jin Noh ,  Dae Won Lee ,  Byeong Woo Kang ,  Bong Hoe Kim ,  Yong Ho Seok

IPC分类号： H04W72/04 ,  H04L5/00 ,  H04B7/04 ,  H04W72/08 ,  H04B7/0413 ,  H04L29/12 ,  H04L29/06 ,  H04L29/08 ,  H04W84/12 ,  H04W28/06 ,  H04W88/08

CPC分类号： H04W72/0406 ,  H04B7/0413 ,  H04L5/001 ,  H04L5/0033 ,  H04L5/0044 ,  H04L5/0094 ,  H04L61/6022 ,  H04L69/22 ,  H04L69/323 ,  H04L69/324 ,  H04W28/065 ,  H04W72/04 ,  H04W72/042 ,  H04W72/085 ,  H04W84/12 ,  H04W88/08

摘要： According to one embodiment, a method for a wireless local area includes: generating a medium access control (MAC) protocol data unit (MPDU) to be transmitted to a target station; generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) by attaching a PLCP preamble to the MPDU; selecting a transmission channel; and transmitting the PPDU to the target station over the transmission channel. Selecting the transmission channel includes: performing clear channel assessment (CCA) on a first channel to determine whether the first channel is idle; and only after it is determined that the first channel is idle, selecting the first channel and at least one idle second channel as the transmission channel. The PLCP preamble includes channel allocation information indicating a bandwidth of the transmission channel.