公开(公告)号：US09544030B2

公开(公告)日：2017-01-10

申请号：US14723290

申请日：2015-05-27

Applicant: LG ELECTRONICS INC.

Inventor： Dong Wook Roh ,  Byeong Woo Kang ,  Dae Won Lee ,  Yong Ho Seok

IPC: H04B7/04 ,  H04L1/00 ,  H04B7/06 ,  H04W76/04 ,  H04W72/04 ,  H04W52/42 ,  H04W84/12

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.

Abstract translation: 提供了一种通过WLAN系统中的发射机发送数据帧的方法。 该方法包括生成包括分别通过至少一个或多个空间流发送到至少一个接收器的至少一个数据单元的数据块，向至少一个接收机发送第一控制信息，向每个接收机发送第二控制信息，并发送 所述数据块到所述至少一个接收器。 第一控制信息包括用于数据块的长度指示符，指示数据块是用于SU-MIMO还是MU-MIMO的MIMO指示符，以及包括关于空间流的数量的信息的空间流指示字段。 第二控制信息包括指示应用于数据单元的编码方案的FEC编码字段和指示应用于数据单元的MCS的MCS字段。

公开(公告)号：US09439149B2

公开(公告)日：2016-09-06

申请号：US14866195

申请日：2015-09-25

Applicant: LG ELECTRONICS INC.

Inventor： Byeong Woo Kang ,  Dae Won Lee ,  Yong Ho Seok

IPC: H04W52/02 ,  H04B7/04 ,  H04W74/08 ,  H04W84/12

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 of power saving in a wireless local area network, and a wireless apparatus therefore are discussed. The method according to one embodiment includes acquiring a transmission opportunity (TXOP), receiving a signal field, the signal field including a group identifier, a number indicator and a power saving indicator, the group identifier indicating a group of recipients, the number indicator indicating a number of spatial streams, the power saving indicator indicating that the transmitting device allows the wireless device to enter a doze state. The method according to the embodiment 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, the wireless device is a member of the group of recipients, and the number of spatial streams to be received by the wireless device is equal to zero.

Abstract translation: 因此，讨论了无线局域网中的省电方法以及无线装置。 根据一个实施例的方法包括获取发送机会（TXOP），接收信号字段，包括组标识符，数字指示符和功率节省指示符的信号字段，指示一组接收者的组标识符，数字指示符 多个空间流，功率节省指示符指示发送设备允许无线设备进入打盹状态。 根据本实施例的方法还包括如果在TXOP期间省电指示符指示进入打盹状态的允许，则无线设备是该组接收者的成员，并且该号码 要由无线设备接收的空间流等于零。

公开(公告)号：US09398570B2

公开(公告)日：2016-07-19

申请号：US14703574

申请日：2015-05-04

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04B7/04 ,  H04W84/12

CPC classification number: H04B7/0452 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0473 ,  H04B7/0486 ,  H04B7/0617 ,  H04L5/0023 ,  H04L5/0091 ,  H04L5/0094 ,  H04L27/2613 ,  H04W72/0406 ,  H04W72/046 ,  H04W84/12

Abstract: A method and apparatus for signal transmission in a Wireless Local Area Network (WLAN) system. The method according to one embodiment includes generating a first very high throughput (VHT) signal, generating a second VHT signal, and transmitting the first VHT signal and the second VHT signal. The first VHT signal includes an indicator indicating that the second VHT signal is to be transmitted by using a single-user multiple input multiple output (SU-MIMO) scheme or a multi-user multiple input multiple output (MU-MIMO) scheme. The first VHT signal and the second VHT signal are used to transmit control information, and the control information includes a modulation and coding scheme (MCS) index indicating an MCS used in the step of transmitting and further includes a spatial stream identifier indicating a number of spatial streams.

Abstract translation: 一种用于无线局域网（WLAN）系统中信号传输的方法和装置。 根据一个实施例的方法包括产生第一非常高吞吐量（VHT）信号，产生第二VHT信号，以及发送第一VHT信号和第二VHT信号。 第一VHT信号包括指示通过使用单用户多输入多输出（SU-MIMO）方案或多用户多输入多输出（MU-MIMO）方案来发送第二VHT信号的指示符。 第一VHT信号和第二VHT信号用于发送控制信息，并且控制信息包括指示在发送步骤中使用的MCS的调制和编码方案（MCS）索引，并且还包括表示多个 空间流。

公开(公告)号：US09363796B2

公开(公告)日：2016-06-07

申请号：US14685055

申请日：2015-04-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W28/06 ,  H04W74/08 ,  H04W84/12 ,  H04L5/00

CPC classification number: 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

Abstract: 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.

公开(公告)号：US09295035B2

公开(公告)日：2016-03-22

申请号：US14539925

申请日：2014-11-12

Applicant: LG Electronics Inc.

Inventor： Bong Hoe Kim ,  Dae Won Lee ,  Yu Jin Noh ,  Byeong Woo Kang ,  Dong Youn Seo ,  Dong Wook Roh

IPC: H04W72/04 ,  H04B7/04 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04B7/0456 ,  H04B7/0413 ,  H04L1/0071 ,  H04L5/0044 ,  H04L27/2626 ,  H04W72/04

Abstract: A method and terminal apparatus are described for allocating resources for transmitting a signal in a multiple-input multiple-output (MIMO) wireless communication system. An uplink signal is transmitted using L layers at a terminal in a multiple-input multiple-output (MIMO) wireless communication system. Modulation symbols are generated by modulating output bit sequences of an interleaver matrix by a unit of log2 Q bits. Q is a modulation order, and each of the output bit sequences has a size of L·log2 Q bits. The modulation symbols are mapped to the L layers and transmitted by using the L layers. The output bit sequences are generated by reading out entries of the interleaver matrix, column by column.

Abstract translation: 描述了用于在多输入多输出（MIMO）无线通信系统中分配用于发送信号的资源的方法和终端装置。 在多输入多输出（MIMO）无线通信系统的终端，使用L层发送上行链路信号。 通过以交织器矩阵的输出比特序列调制log2Q比特的单位来产生调制符号。 Q是调制阶数，并且每个输出比特序列具有L ... log2Q比特的大小。 调制符号映射到L层，并通过使用L层进行传输。 通过逐列读出交织器矩阵的条目来生成输出比特序列。

公开(公告)号：US09237048B2

公开(公告)日：2016-01-12

申请号：US14466203

申请日：2014-08-22

Applicant: LG Electronics Inc.

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

IPC: H04W4/00 ,  H04L27/26 ,  H04L1/18 ,  H04L5/00 ,  H04W80/02 ,  H04W84/12

CPC classification number: H04L27/2602 ,  H04B7/0413 ,  H04L1/1812 ,  H04L5/0023 ,  H04L5/0091 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0241 ,  H04W72/0413 ,  H04W72/042 ,  H04W80/02 ,  H04W84/12 ,  H04W88/08 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: A method and apparatus are described for transmitting data. The method includes generating, by an access point (AP), a Physical Layer Protocol Data Unit (PPDU) including a signal field and a data field, and transmitting, by the AP, the PPDU to a station. The signal field includes a reception target indicator and an identifier field. The reception target indicator indicates whether a target of the PPDU is the AP or the station. The identifier field includes a local AP identifier identifying the AP when the reception target indicator indicates that the target of the PPDU is the station.

Abstract translation: 描述了用于发送数据的方法和装置。 该方法包括由接入点（AP）生成包括信号字段和数据字段的物理层协议数据单元（PPDU），并且由AP将PPDU发送到站。 信号字段包括接收目标指示符和标识符字段。 接收目标指示符指示PPDU的目标是AP还是站。 当接收目标指示符指示PPDU的目标是站时，标识符字段包括标识AP的本地AP标识符。

公开(公告)号：US09173169B2

公开(公告)日：2015-10-27

申请号：US14595876

申请日：2015-01-13

Applicant: LG ELECTRONICS INC.

Inventor： Byeong Woo Kang ,  Dae Won Lee ,  Yong Ho Seok

IPC: G08C17/00 ,  H04W52/02 ,  H04B7/04 ,  H04W74/08

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 for power saving in a wireless local area network. The method according to one embodiment includes acquiring, by a wireless device, a transmission opportunity (TXOP); and receiving a signal field from the transmitting device. A group identifier indicates recipients, a number indicator indicates spatial streams, and a power saving indicator indicates that the transmitting device is allowed to enter a doze state during the TXOP. The method according to the embodiment further includes determining, by the wireless device, whether a first condition or a second condition is satisfied. The first condition is satisfied if the power saving indicator indicates an allowance, the wireless device is a recipient indicated by the group identifier, and the number of spatial streams is equal to zero. The second condition is satisfied if the power saving indicator indicates an allowance, and the wireless device is not a recipient indicated by the group identifier.

Abstract translation: 一种在无线局域网中节电的方法。 根据一个实施例的方法包括通过无线设备获取传输机会（TXOP）; 以及从发送装置接收信号场。 组标识符表示接收者，数字指示符表示空间流，省电指示符表示在TXOP期间允许发送设备进入打盹状态。 根据实施例的方法还包括由无线设备确定是否满足第一条件或第二条件。 如果省电指示符指示允许，则无线设备是由组标识符指示的接收者，并且空闲流的数量等于零，则满足第一条件。 如果省电指示符指示允许，并且无线设备不是由组标识符指示的接收者，则满足第二条件。

公开(公告)号：US09071491B2

公开(公告)日：2015-06-30

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: H04B7/02 ,  H04L27/26 ,  H04B7/04 ,  H04W84/12

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：US09065502B2

公开(公告)日：2015-06-23

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 ,  H04B7/04 ,  H04B7/06 ,  H04L25/02 ,  H04L25/03

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：US08937933B2

公开(公告)日：2015-01-20

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: H04W4/00 ,  H04W84/12 ,  H04L27/26 ,  H04L1/00 ,  H04W28/06

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.

Abstract translation: 一种在非常高吞吐量（VHT）无线局域网（WLAN）系统中发送物理层汇聚程序（PLCP）帧的方法包括生成要发送到目的站（STA）的MAC协议数据单元（MPDU） 通过将包含包含用于传统STA的控制信息的L-SIG字段和包含用于VHT STA的控制信息的VHT-SIG字段的L-SIG字段的PLCP头添加到MPDU来生成PLCP协议数据单元（PPDU），以及发送PPDU 到目的地STA。 通过旋转施加到L-SIG字段的OFDM符号的星座来获得应用于VHT-SIG字段的一些正交频分复用（OFDM）符号的星座。