公开(公告)号：US10285066B2

公开(公告)日：2019-05-07

申请号：US15471932

申请日：2017-03-28

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04W84/12 ,  H04W16/14 ,  H04W52/28 ,  H04W52/38 ,  H04W74/08 ,  H04W74/00

Abstract: A method for a STA (Station) to transmit a frame to another STA is disclosed. The method includes preparing a VHT (Very High Throughput) frame including a first signaling field (VHT SIG A), a second signaling field (VHT SIG B) and a service field. One of the VHT SIG A, the VHT SIG B and the service field includes a subfield informing spatial reuse (SR) operation when the STA is capable to supporting HE (High Efficiency) WLAN (Wireless Local Area Network) scheme.

公开(公告)号：US10278166B2

公开(公告)日：2019-04-30

申请号：US15214060

申请日：2016-07-19

Applicant: LG ELECTRONICS INC.

Inventor： Kyujin Park ,  Jaehoon Chung ,  Jiwoong Jang ,  Hangyu Cho ,  Hyunsoo Ko

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04L1/18

Abstract: Disclosed is a method of receiving downlink control information and an apparatus therefore in a wireless access system supporting an enhanced physical downlink control channel. The method includes receiving, from an eNB, DCI transmission channel information that indicates which one of a physical downlink control channel (PDCCH) and the e-PDCCH is used to transmit the DCI, checking the starting symbol of the e-PDCCH when the DCI transmission channel information indicates that the e-PDCCH is used to transmit the DCI, and receiving the DCI by performing blind decoding on the e-PDCCH from the starting symbol of the e-PDCCH.

公开(公告)号：US10277442B2

公开(公告)日：2019-04-30

申请号：US15556281

申请日：2015-10-21

Applicant: LG ELECTRONICS INC.

Inventor： Jinmin Kim ,  Wookbong Lee ,  Hangyu Cho ,  Eunsung Park

IPC: H04L27/26 ,  H04W84/12 ,  H04W88/02

Abstract: A data transmission method by a station (STA) apparatus of a wireless LAN system is disclosed. A data transmission method by an STA apparatus according to the present invention comprises the steps of: generating a physical protocol data unit (PPDU) including a physical preamble and a data field; determining whether to add a padding symbol to the PPDU; generating and adding the padding symbol to the PPDU if adding the padding symbol is determined; and transmitting the PPDU.

公开(公告)号：US10277373B2

公开(公告)日：2019-04-30

申请号：US15323670

申请日：2015-08-19

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom Lee ,  Jiwon Kang ,  Wookbong Lee ,  Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho ,  Eunsung Park

IPC: H04L5/00 ,  H04L27/18 ,  H04L27/26 ,  H04L27/00

Abstract: Disclosed is a method for transmitting a pilot sequence, the method comprising: generating a sequence set on the basis of a baseline sequence having non-CAZAC properties; and selecting any one pilot sequence form among sequence sets corresponding to different additional information, and transmitting same to a receiver.

公开(公告)号：US10270635B2

公开(公告)日：2019-04-23

申请号：US15563945

申请日：2016-04-04

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho ,  Wookbong Lee

IPC: H04L27/26 ,  H04L5/02 ,  H04L25/38 ,  H04L27/02 ,  H04L1/00 ,  H04L5/00 ,  H04B7/0452 ,  H04W84/12

Abstract: The present specification presents a configuration technique of a field for control information in a wireless communication system. Specifically, presented is a configuration technique of a signal field including user-specific information in a wireless LAN system. A plurality of MCS techniques are applied to each field of a signal field, according to the present embodiment, and each field can be ordered according to the MCS techniques. The signal field according to the present embodiment can be used for a single user or multiple users, wherein the length of each field can be determined for blind decoding of the single user and the multiple users. The signal field according to the present embodiment can be an SIG-B field according to a wireless LAN standard.

公开(公告)号：US10264554B2

公开(公告)日：2019-04-16

申请号：US15517813

申请日：2015-10-15

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Hangyu Cho ,  Wookbong Lee

IPC: H04L1/00 ,  H04L1/06 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W84/12 ,  H04W88/08

Abstract: Disclosed are a method and a device for allocating wireless resources in bandwidths of different sizes in a wireless LAN. The method for allocating wireless resources in bandwidths of different sizes in a wireless LAN may comprise steps in which: an AP determines a first resource unit to be allocated to an STA in a first bandwidth; and the AP schedules the first resource unit for the STA, wherein the allocation starting position of the first resource unit allocated in the first bandwidth is configured the same as the allocation starting position of a second resource unit allocated in a second bandwidth, and the allocation starting position of a first guard tone adjacent to the first resource unit may be configured differently from the allocation starting position of a second guard tone adjacent to the second resource unit on the basis of tone shifting.

公开(公告)号：US10187885B2

公开(公告)日：2019-01-22

申请号：US15118088

申请日：2014-12-17

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Kiseon Ryu ,  Wookbong Lee ,  Jinsoo Choi ,  Hangyu Cho ,  Jeongki Kim ,  Giwon Park

IPC: H04W72/04 ,  H04W74/08 ,  H04L5/00 ,  H04L27/26 ,  H04W84/12

Abstract: A method and a device for transmitting a frame in a wireless LAN are disclosed. A method for transmitting a data unit in a wireless LAN can comprise the steps of: transmitting, by an AP, an RTS frame for medium protection to a plurality of STAs through a plurality of channels; receiving, by the AP, a CTS frame in response to the RTS frame from each of the plurality of STAs through a first allocation channel, wherein the first allocation channel is at least one of the plurality of channels, which is determined on the basis of the RTS frame; and transmitting, by the AP, downlink data to each of the plurality of STAs through a second allocation channel on the basis of OFDMA in overlapped time resources, wherein the second allocation channel is at least one of the plurality of channels.

公开(公告)号：US10182442B2

公开(公告)日：2019-01-15

申请号：US15566205

申请日：2016-04-25

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Hangyu Cho ,  Wookbong Lee

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04W84/12

Abstract: A method and a device for performing communication by using various RUs in a wireless LAN are presented. If a center resource unit located in the vicinity of a DC frequency band exists, whether the corresponding center resource unit is used can be determined according to whether a discontinuous channel allocation is applied. The center resource unit can be used as a null subcarrier for canceling the interference, which becomes a problem due to the discontinuous channel allocation. If the center resource unit is used as the null subcarrier, the center resource unit is inserted into different frequency chunks, thereby mitigating the interference that can be generated for each frequency chunk.

公开(公告)号：US10182440B2

公开(公告)日：2019-01-15

申请号：US15306744

申请日：2015-06-09

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Wookbong Lee ,  Hangyu Cho ,  Jinyoung Chun ,  Dongguk Lim

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

Abstract: Provided are a method and an apparatus for transmitting data in a wireless LAN. A transmitter receives, from an access point (AP), allocation information about at least one subband from among a plurality of subbands, and transmits a physical layer protocol data unit (PPDU) in the at least one allocated subband. A guard area is defined on both ends of at least any one of the plurality of subbands.

公开(公告)号：US10154482B2

公开(公告)日：2018-12-11

申请号：US15520822

申请日：2016-05-13

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Jinsoo Choi ,  Hangyu Cho

IPC: H04W72/04 ,  H04W84/12 ,  H04W88/08

Abstract: According to an embodiment of the present invention, a method for transmitting a frame by a station (STA) in a wireless LAN system supporting a high efficiency physical layer protocol data unit (HE PPDU) comprises the steps of: configuring a first duration field included in an HE-SIG A field; and transmitting a frame including the HE-SIG A field and an MAC header, wherein the first duration field may be configured to indicate a transmission opportunity (TXOP) value using a number of bits smaller than that of a second duration field included in the MAC header, and a granularity of a time unit used in the first duration field in order to indicate the TXOP value may be configured to be different from a granularity of a time unit used in the second duration field.