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：US20130343363A1

公开(公告)日：2013-12-26

申请号：US14015912

申请日：2013-08-30

Applicant: LG ELECTRONICS INC.

Inventor： Dong Youn SEO ,  Joon Kui AHN ,  Yu Jin NOH ,  Jung Hoon LEE ,  Bong Hoe KIM

IPC: H04W72/04

CPC classification number: H04W72/0446 ,  H04B7/12 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0028 ,  H04L5/0039 ,  H04L5/0041 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0085 ,  H04L5/0092 ,  H04W88/08

Abstract: A method for efficiently scheduling virtual resource blocks to physical resource blocks is disclosed. In a wireless mobile communication system, for distributed mapping of consecutively allocated virtual resource blocks to physical resource blocks, when nulls are inserted into a block interleaver used for the mapping, they are uniformly distributed to ND divided groups of the block interleaver, which are equal in number to the number (ND) of physical resource blocks to which one virtual resource block is mapped.

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：US20210176003A1

公开(公告)日：2021-06-10

申请号：US17179119

申请日：2021-02-18

Applicant: LG ELECTRONICS INC.

Inventor： Dong Wook ROH ,  Joon Kui AHN ,  Nam Yul YU ,  Jung Hyun CHO ,  Yu Jin NOH ,  Ki Jun KIM ,  Dae Won LEE

IPC: H04L1/00 ,  H03M13/37 ,  H04L5/00 ,  H03M13/13 ,  H04W72/04 ,  H03M13/29 ,  H03M13/00 ,  H04W84/04 ,  G06F17/16 ,  H03M13/05

Abstract: A method for channel-coding information bits using a code generation matrix including 32 rows and A columns corresponding to length of the information bits includes, channel-coding the information bits having “A” length using basis sequences having 32-bit length corresponding to columns of the code generation matrix, and outputting the channel-coded result as an output sequence. If “A” is higher than 10, the code generation matrix is generated when (A−10) additional basis sequences were added as column-directional sequences to a first or second matrix. The first matrix is a TFCI code generation matrix composed of 32 rows and 10 columns used for TFCI coding. The second matrix is made when at least one of an inter-row location or an inter-column location of the first matrix was changed. The additional basis sequences satisfy a value 10 of a minimum Hamming distance.

公开(公告)号：US20200336245A1

公开(公告)日：2020-10-22

申请号：US16920136

申请日：2020-07-02

Applicant: LG ELECTRONICS INC.

Inventor： Dong Wook ROH ,  Joon Kui AHN ,  Nam Yul YU ,  Jung Hyun CHO ,  Yu Jin NOH ,  Ki Jun KIM ,  Dae Won LEE

IPC: H04L1/00 ,  H03M13/29 ,  H03M13/13 ,  H03M13/05 ,  H04W84/04 ,  H04L5/00 ,  G06F17/16 ,  H04W72/04 ,  H03M13/37 ,  H03M13/00

Abstract: A method for channel-coding information bits using a code generation matrix including 32 rows and A columns corresponding to length of the information bits includes, channel-coding the information bits having “A” length using basis sequences having 32-bit length corresponding to columns of the code generation matrix, and outputting the channel-coded result as an output sequence. If “A” is higher than 10, the code generation matrix is generated when (A-10) additional basis sequences were added as column-directional sequences to a first or second matrix. The first matrix is a TFCI code generation matrix composed of 32 rows and 10 columns used for TFCI coding. The second matrix is made when at least one of an inter-row location or an inter-column location of the first matrix was changed. The additional basis sequences satisfy a value 10 of a minimum Hamming distance.

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：US20180006692A1

公开(公告)日：2018-01-04

申请号：US15709321

申请日：2017-09-19

Applicant: LG ELECTRONICS INC.

Inventor： Yu Jin NOH ,  Ki Jun KIM ,  Dong Wook ROH ,  Byeong Woo KANG ,  Dae Won LEE ,  Bong Hoe KIM ,  Dong Youn SEO

IPC: H04B7/04 ,  H04L27/26 ,  H04B7/06 ,  H04L25/03 ,  H04J11/00 ,  H04W72/04 ,  H04B7/0456

CPC classification number: H04B7/0486 ,  H04B7/0456 ,  H04B7/0617 ,  H04J11/0023 ,  H04L25/03923 ,  H04L25/03929 ,  H04L27/2614 ,  H04L27/2615 ,  H04L27/2636 ,  H04W72/04

Abstract: A method and apparatus for allowing a UE to transmit uplink signals using a MIMO scheme are disclosed. In order to maintain good Peak power to Average Power Ratio (PAPR) or Cubic Metric (CM) properties when the UE transmits uplink signals using the MIMO scheme, the UE uses a precoding scheme based on a precoding matrix established in a manner that one layer is transmitted to each antenna in specific rank transmission.

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：US20170118316A1

公开(公告)日：2017-04-27

申请号：US15397453

申请日：2017-01-03

Applicant: LG ELECTRONICS INC.

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

IPC: H04L29/08 ,  H04L27/26 ,  H04B7/04

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

Abstract: 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：US20160302213A1

公开(公告)日：2016-10-13

申请号：US15180884

申请日：2016-06-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/08 ,  H04L1/06 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04W72/085 ,  H03M13/23 ,  H03M13/2707 ,  H03M13/356 ,  H03M13/6527 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/0643 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0048 ,  H04L25/0204 ,  H04L27/2628 ,  H04W84/12

Abstract: A method is provided for transmitting data in a wireless local area network. A transmitter generates an encoded data unit by performing a channel coding to transmission data to be included in a data field of a physical layer protocol data unit (PPDU). The transmitter generates at least one spatial block by re-arranging the encoded data unit, and divides each spatial block of at least one spatial block into two frequency segments. A bandwidth of each frequency segment is half of a bandwidth of the each spatial block. The transmitter interleaves the two frequency segments to generate a first interleaved segment and a second interleaved segment, respectively, and generates first and second mapped sequences by respectively mapping the first and second interleaved segments into a signal constellation. The transmitter performs an Inverse Discrete Fourier Transform (IDFT) on the first and second mapped sequences to generate and transmit a transmission signal.

Abstract translation: 提供了一种在无线局域网中传送数据的方法。 发射机通过对要包括在物理层协议数据单元（PPDU）的数据字段中的传输数据执行信道编码来生成编码数据单元。 发射机通过重新排列编码数据单元来产生至少一个空间块，并将至少一个空间块的每个空间块划分成两个频段。 每个频段的带宽是每个空间块的带宽的一半。 发射机交织两个频段以分别产生第一交错分段和第二交织分段，并通过分别将第一和第二交织分段映射成信号星座来产生第一和第二映射序列。 发射机在第一和第二映射序列上执行逆离散傅里叶变换（IDFT）以产生和发送传输信号。