公开(公告)号：US20150029986A1

公开(公告)日：2015-01-29

申请号：US14484079

申请日：2014-09-11

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho SEOK ,  Bong Hoe KIM ,  Dae Won LEE

IPC: H04B7/04 ,  H04L25/02

CPC classification number: H04B7/0452 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0632 ,  H04B7/0663 ,  H04L25/0224 ,  H04W84/12

Abstract: A Multi-User-Multiple Input Multiple Output (MU-MIMO) transmission method performed by an Access Point (AP) in a Wireless Local Area Network (WLAN) system is provided. The method includes transmitting an MU-MIMO initiation message to a destination Station (STA) which is a target of a MU-MIMO transmission, the MU-MIMO initiation message informing that MU-MIMO transmission will be initiated, receiving a sounding frame transmitted by the destination STA as a response to the MU-MIMO initiation message and performing MU-MIMO transmission on data by beamforming based on channel information obtained from the sounding frame. The sounding frame includes precoded and virtualized channel information between the AP and the STA. A dimension of the virtualized channel information is lower than a dimension of channel information between the AP and the STA.

Abstract translation: 提供了一种由无线局域网（WLAN）系统中的接入点（AP）执行的多用户多输入多输出（MU-MIMO）传输方法。 该方法包括向作为MU-MIMO传输的目标的目的站（STA）发送MU-MIMO发起消息，通知MU-MIMO传输将被发起的MU-MIMO发起消息，接收由MU-MIMO发送的发送帧 目的地STA作为对MU-MIMO发起消息的响应，并且基于从探测帧获得的信道信息，通过波束成形对数据执行MU-MIMO传输。 探测帧包括AP和STA之间的预编码和虚拟化信道信息。 虚拟化信道信息的维度低于AP和STA之间的信道信息的维度。

公开(公告)号：US20150023308A1

公开(公告)日：2015-01-22

申请号：US14510458

申请日：2014-10-09

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho SEOK ,  Yu Jin NOH ,  Bong Hoe KIM ,  Dae Won LEE

IPC: H04B7/04 ,  H04W84/12 ,  H04L5/00

CPC classification number: H04B7/0452 ,  H04B7/0421 ,  H04B7/0621 ,  H04L5/0053 ,  H04W84/12

Abstract: A link adaptation method performed by a station (STA) in a wireless local area network (LAN) system supporting multi-user multiple-input multiple-output (MU-MIMO) is provided. The method includes: receiving a modulation and coding scheme (MCS) request, a steered sounding physical layer convergence procedure (PLOP) protocol data unit (PPDU) which is beam-formed to the STA, and a MIMO indicator including MU-MIMO-related information from an access point (AP); and transmitting feedback information including an MCS acquired from the steered sounding PPDU and the MU-MIMO-related information to the AP in response to the MCS request.

Abstract translation: 提供了一种由支持多用户多输入多输出（MU-MIMO）的无线局域网（LAN）系统中的站（STA）执行的链路自适应方法。 该方法包括：接收调制编码方案（MCS）请求，对STA进行波束形成的转向探测物理层融合过程（PLOP）协议数据单元（PLDU）以及包含MU-MIMO相关的MIMO指示符 来自接入点（AP）的信息; 以及响应于所述MCS请求，向所述AP发送包括从所述转向探测PPDU获得的MCS和所述MU-MIMO相关信息的反馈信息。

公开(公告)号：US20150023291A1

公开(公告)日：2015-01-22

申请号：US14502627

申请日：2014-09-30

Applicant: LG Electronics Inc.

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

IPC: H04L1/00 ,  H04W84/12 ,  H04B7/04

CPC classification number: H04L1/0009 ,  H04B7/0413 ,  H04B7/0452 ,  H04L1/0003 ,  H04L1/0031 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0075 ,  H04L1/06 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2602 ,  H04W84/12

Abstract: A method of transmitting a packet in a wireless local area network system. The method is performed by a transmitting station and includes generating a packet including at least one spatial stream and first control information including a first field and a second field, and transmitting the packet to at least one receiving station. The first field indicates a group ID of the at least one receiving station and whether the packet is generated based on a single user transmission scheme or a multi user transmission scheme. Content of the second field is determined based on whether the packet is generated based on the single user transmission scheme or the multi user transmission scheme, the second field indicates a modulation and coding scheme (MCS) index used for the packet if the packet is generated based on the single user transmission, and the second field indicates an encoding scheme applied to the at least one receiving station if the packet is generated based on the multi user transmission scheme.

Abstract translation: 一种在无线局域网系统中发送分组的方法。 该方法由发送站执行，并且包括生成包括至少一个空间流的分组和包括第一场和第二场的第一控制信息，并将该分组发送到至少一个接收站。 第一字段指示至少一个接收站的组ID，以及基于单个用户传输方案或多用户传输方案是否生成分组。 基于该单个用户传输方案或多用户传输方案是否生成分组来确定第二字段的内容，如果分组被生成，则第二字段指示用于分组的调制和编码方案（MCS）索引 并且如果基于多用户传输方案生成分组，则第二字段指示应用于至少一个接收站的编码方案。

公开(公告)号：US20140321379A1

公开(公告)日：2014-10-30

申请号：US14307413

申请日：2014-06-17

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho SEOK ,  Eun Sun KIM

IPC: H04W16/14 ,  H04W72/04

CPC classification number: H04W16/14 ,  H04W72/0493 ,  H04W74/006 ,  H04W74/0808 ,  H04W84/12

Abstract: Disclosed are a method and apparatus for multi-channel operation, performed by an access point (AP), in a WLAN system, the method includes: transmitting channel assignment information to a plurality of stations (STAs), in which the channel assignment information is for assigning at least one of a first channel and a second channel to each of the plurality of STAs; transmitting channel activity information to the plurality of STAs, in which the channel activity information is for indicating an activity duration where the AP transmit or receive a frame through each of the first channel and the second channel; and transmitting or receiving a frame through the first channel or the second channel on the basis of the channel activity information.

Abstract translation: 公开了一种在WLAN系统中由接入点（AP）执行的多信道操作的方法和装置，所述方法包括：向多个站（STA）发送信道分配信息，其中信道分配信息是 用于将多个STA中的每一个分配至少一个第一信道和第二信道; 向所述多个STA发送信道活动信息，其中所述信道活动信息用于指示所述AP通过所述第一信道和所述第二信道中的每一个发送或接收帧的活动持续时间; 以及基于所述频道活动信息通过所述第一频道或所述第二频道发送或接收帧。

公开(公告)号：US20140241451A1

公开(公告)日：2014-08-28

申请号：US14227353

申请日：2014-03-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/04

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

Abstract: Methods and devices for transmitting or receiving data in a wireless local area network are provided. The method in one embodiment includes transmitting, by a transmitter, a first long training field (LTF) to a receiver; transmitting, by the transmitter, a very high throughput (VHT)-SIG-A field to the receiver; transmitting, by the transmitter, a second LTF for multiple input multiple output (MIMO) channel estimation to the receiver; transmitting, by the transmitter, a VHT-SIG-B field to the receiver; and transmitting, by the transmitter, a data field to the receiver, wherein the first LTF, the VHT-SIG-A field, the second LTF, the VHT-SIG-B field and the data field are sequentially transmitted, and wherein the second LTF and the data field are mapped to at least one spatial stream based on a mapping matrix but the first LTF and the VHT SIG-A field are not mapped to the at least one spatial stream.

Abstract translation: 提供了用于在无线局域网中发送或接收数据的方法和设备。 一个实施例中的方法包括由发射机向接收机发送第一长训练场（LTF）; 由发射机向接收机发射非常高的吞吐量（VHT）-SIG-A场; 由所述发射机向所述接收机发送用于多输入多输出（MIMO）信道估计的第二LTF; 由发射机向接收机发送VHT-SIG-B字段; 并且由所述发射机将数据字段发送到所述接收机，其中所述第一LTF，所述VHT-SIG-A字段，所述第二LTF，所述VHT-SIG-B字段和所述数据字段被顺序地发送，并且其中所述第二 基于映射矩阵将LTF和数据字段映射到至少一个空间流，但是第一LTF和VHT SIG-A字段未映射到至少一个空间流。

公开(公告)号：US20180049194A1

公开(公告)日：2018-02-15

申请号：US15727066

申请日：2017-10-06

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W74/08 ,  H04W28/20 ,  H04W88/08 ,  H04W84/12 ,  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 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：US20180027391A1

公开(公告)日：2018-01-25

申请号：US15707328

申请日：2017-09-18

Applicant: LG ELECTRONICS INC.

Inventor： Byoung Hoon KIM ,  Yong Ho SEOK ,  Andrey LYAKHOV

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

CPC classification number: H04W4/08 ,  H04B7/0632 ,  H04L5/0023 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0091 ,  H04L25/0204 ,  H04W24/00 ,  H04W72/042 ,  H04W72/1289 ,  H04W74/02 ,  H04W84/12

Abstract: 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：US20170094646A1

公开(公告)日：2017-03-30

申请号：US15372136

申请日：2016-12-07

Applicant: LG ELECTRONICS INC.

Inventor： Dong Wook ROH ,  Byeong Woo KANG ,  Dae Won LEE ,  Yong Ho SEOK

IPC: H04W72/04 ,  H04L1/00

CPC classification number: H04W72/042 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0697 ,  H04L1/0025 ,  H04L1/0041 ,  H04L2001/0093 ,  H04W52/42 ,  H04W84/12

Abstract: A method of transmitting a data frame by a transmitter in a WLAN system is provided. The method includes generating a data block including at least one data units respectively transmitted through at least one or more spatial streams to at least one receiver, transmitting first control information to the at least one receiver, transmitting second control information to each receiver, and transmitting the data block to the at least one receiver. The first control information includes a length indicator for the data block, a MIMO indicator indicating whether the data block is for SU-MIMO or MU-MIMO, and a spatial stream indication field including information about the number of the spatial streams. The second control information includes a FEC coding field indicating an encoding scheme applied to the data unit and an MCS field indicating an MCS applied to the data unit.

公开(公告)号：US20170026155A1

公开(公告)日：2017-01-26

申请号：US15285942

申请日：2016-10-05

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho SEOK ,  Jong Hyun PARK ,  Eun Sun KIM

IPC: H04L5/00 ,  H04W74/08

CPC classification number: H04L5/0048 ,  H04L1/0008 ,  H04L5/0044 ,  H04W28/06 ,  H04W74/0816 ,  H04W84/12

Abstract: A method for channel access in a wireless local area network is provided. The method includes: transmitting, a plurality of Request To Send (RTS) frames over a plurality of subchannels to a receiver, each RTS frame being transmitted over each of the plurality of subchannels; receiving at least one Clear To Send (CTS) frame over at least one subchannel among the plurality of subchannels from the receiver; each CTS frame being transmitted over each of the at least one subchannel, transmitting a data unit to the receiver. The data unit includes at least one data frame. The at least one data frame is transmitted over at least one selected subchannel among the at least one subchannel, each data frame being transmitted over each selected subchannel.

Abstract translation: 提供了一种在无线局域网中进行信道接入的方法。 该方法包括：通过多个子信道将多个请求发送（RTS）帧发送到接收机，每个RTS帧在多个子信道中的每一个上发送; 在来自接收机的多个子信道中的至少一个子信道上接收至少一个清除发送（CTS）帧; 每个CTS帧在所述至少一个子信道中的每一个上传输，将数据单元发送到接收器。 数据单元包括至少一个数据帧。 所述至少一个数据帧通过所述至少一个子信道中的至少一个所选择的子信道进行发送，每个数据帧在每个所选择的子信道上传输。

公开(公告)号：US20160374023A1

公开(公告)日：2016-12-22

申请号：US15251858

申请日：2016-08-30

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04L29/08

CPC classification number: H04W52/0235 ,  H04B7/0452 ,  H04L69/323 ,  H04W52/02 ,  H04W52/0212 ,  H04W52/0219 ,  H04W52/0222 ,  H04W74/0808 ,  H04W84/12 ,  Y02D70/142 ,  Y02D70/444

Abstract: A method and a wireless apparatus for power saving in a wireless local area network are discussed. The method according to an embodiment includes receiving a frame including a signal field from a transmitting device. The signal field includes a number indicator and a power saving indicator. The number indicator indicates a number of spatial streams for a corresponding recipient, and the power saving indicator indicates that the transmitting device allows the wireless device to enter a doze state during a transmission opportunity (TXOP). The method further includes entering the doze state until the end of the TXOP if the power saving indicator indicates an allowance of entering the doze state during the TXOP, and the number of spatial streams to be received by the wireless device is equal to zero.

Abstract translation: 讨论了一种在无线局域网中节能的方法和无线装置。 根据实施例的方法包括从发送设备接收包括信号字段的帧。 信号字段包括数字指示器和省电指示器。 数字指示符指示相应接收者的空间流的数量，并且省电指示符指示发送设备允许无线设备在传输机会（TXOP）期间进入打盹状态。 该方法还包括如果在TXOP期间省电指示符指示进入打盹状态的允许，并且无线设备要接收的空闲流的数量等于零，则进入打盹状态直到TXOP的结束。