公开(公告)号：US11533125B2

公开(公告)日：2022-12-20

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 ,  H03M13/29 ,  H03M13/13 ,  H03M13/05 ,  H03M13/37 ,  H04W84/04 ,  H04L5/00 ,  G06F17/16 ,  H04W72/04 ,  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：US10530543B2

公开(公告)日：2020-01-07

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 ,  H04W99/00 ,  H04L27/26 ,  H04W84/12

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：US10334595B2

公开(公告)日：2019-06-25

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 ,  H04W28/20 ,  H04W74/08 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  H04B7/0452

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：US10206222B2

公开(公告)日：2019-02-12

申请号：US15591911

申请日：2017-05-10

Applicant: LG ELECTRONICS INC.

Inventor： Hak Seong Kim ,  Ki Jun Kim ,  Yu Jin Noh ,  Dae Won Lee ,  Bong Hoe Kim

IPC: H04B7/14 ,  H04W72/12 ,  H04B7/155 ,  H04B7/26 ,  H04W72/04 ,  H04W84/04 ,  H04L5/14

Abstract: A method of operating a relay station in a wireless communication system is provided. The method includes operating in a first mode comprising a first sub-mode and a second sub-mode, in the first sub-mode a first downlink and a first uplink between a base station and the relay station being simultaneously activated, in the second sub-mode a second downlink and a second uplink between the relay station and a mobile station being simultaneously activated, and operating in a second mode comprising a third sub-mode and a fourth sub-mode, in the third sub-mode the first downlink and the second uplink being simultaneously activated, in the fourth sub-mode the first uplink and the second downlink being simultaneously activated.

公开(公告)号：US10122499B2

公开(公告)日：2018-11-06

申请号：US15698555

申请日：2017-09-07

Applicant: LG ELECTRONICS INC.

Inventor： Yu Jin Noh ,  Dae Won Lee ,  Yong Ho Seok

IPC: H04L1/16 ,  H04L1/00

Abstract: 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：US09876882B2

公开(公告)日：2018-01-23

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 ,  H04B7/0452 ,  H04L27/26 ,  H04W84/12

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：US09860877B2

公开(公告)日：2018-01-02

申请号：US15142379

申请日：2016-04-29

Applicant: LG ELECTRONICS INC.

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

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

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：US09716574B2

公开(公告)日：2017-07-25

申请号：US14694346

申请日：2015-04-23

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 ,  H04L5/26 ,  H04L27/26 ,  H04W84/12

CPC classification number: H04L5/0048 ,  H04L27/2628 ,  H04W84/12 ,  H04W99/00

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：US09680557B2

公开(公告)日：2017-06-13

申请号：US14968220

申请日：2015-12-14

Applicant: LG ELECTRONICS INC.

Inventor： Hak Seong Kim ,  Ki Jun Kim ,  Yu Jin Noh ,  Dae Won Lee ,  Bong Hoe Kim

IPC: H04B7/14 ,  H04B7/155 ,  H04B7/26 ,  H04W72/04 ,  H04W84/04

CPC classification number: H04W72/1273 ,  H04B7/15507 ,  H04B7/15542 ,  H04B7/15557 ,  H04B7/2606 ,  H04L5/14 ,  H04W72/042 ,  H04W72/044 ,  H04W72/1268 ,  H04W84/047

Abstract: A method of operating a relay station in a wireless communication system is provided. The method includes operating in a first mode comprising a first sub-mode and a second sub-mode, in the first sub-mode a first downlink and a first uplink between a base station and the relay station being simultaneously activated, in the second sub-mode a second downlink and a second uplink between the relay station and a mobile station being simultaneously activated, and operating in a second mode comprising a third sub-mode and a fourth sub-mode, in the third sub-mode the first downlink and the second uplink being simultaneously activated, in the fourth sub-mode the first uplink and the second downlink being simultaneously activated.

公开(公告)号：US09661629B2

公开(公告)日：2017-05-23

申请号：US15010348

申请日：2016-01-29

Applicant: LG ELECTRONICS INC.

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

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

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

Abstract: A method of transmitting a data frame by a station in a wireless local area network (WLAN), A station obtains a transmission opportunity (TXOP) for a bandwidth. The TXOP indicates an interval of time during which the station has a right to initiate frame exchange sequences onto a wireless medium. The station selects a transmit bandwidth parameter of a non-initial data unit of a plurality of data units from available bandwidth parameters. 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. The station transmits, during the TXOP, the non-initial data unit according to the transmit bandwidth parameter of the non-initial data unit.