公开(公告)号：US10587381B2

公开(公告)日：2020-03-10

申请号：US16030744

申请日：2018-07-09

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Wookbong Lee ,  Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho ,  Suhwook Kim

IPC: H04L5/00 ,  H04B7/0417 ,  H04W84/12 ,  H04B7/0452

Abstract: A method and apparatus for transmitting a frame on the basis of a sounding procedure is disclosed. The method for transmitting the frame on the basis of a sounding procedure in a wireless LAN may comprise the steps of: transmitting an NDPA frame to each of multiple STAs by an AP wherein the NDPA frame notifies of the transmission of NDP; transmitting the NDP to each of the multiple STAs by the AP; receiving, by the AP, multiple feedback frames transmitted through multiple transmission sources allocated to the multiple STAs in time sources overlapped by the multiple STAs, respectively; and transmitting, by the AP, multiple downlink frames to the multiple STAs respectively.

公开(公告)号：US10349283B2

公开(公告)日：2019-07-09

申请号：US15569035

申请日：2015-12-04

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinyoung Chun ,  Jinsoo Choi ,  Hangyu Cho ,  Jinmin Kim ,  Eunsung Park

IPC: H04W16/10 ,  H04W72/04 ,  H04W72/12 ,  H04W76/20 ,  H04L1/00 ,  H04W52/28 ,  H04L27/26 ,  H04W28/06 ,  H04W52/34

Abstract: A method for receiving, by a station (STA), a signal in a wireless LAN system comprises: a step of receiving a frame which includes a SIG-A field including MCS information for a SIG-B field, and the SIG-B field encoded on the basis of any one MCS set among from multiple MCS sets; and a step of decoding the SIG-B field on the basis of the MCS information included in the SIG-A field, wherein a specific value in the MCS information indicating a first MCS level of a first MCS set from among the multiple MCS sets is re-used to indicate a second MCS level of a second MCS set, and which MCS level of the first MCS level and the second MCS level indicated by the specific value is set in the SIG-B field is implicitly indicated by a status of a channel on which the frame is received.

公开(公告)号：US10348460B2

公开(公告)日：2019-07-09

申请号：US15525014

申请日：2015-08-04

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinyoung Chun ,  Wookbong Lee ,  Hangyu Cho ,  Eunsung Park

IPC: H04L5/00 ,  H04B7/0452 ,  H04L27/26 ,  H04W84/12 ,  H04W88/08 ,  H04B7/0413

Abstract: Disclosed is a method for transmitting, by a first station, a frame in a wireless LAN system, and a station device therefor. To this end, a station generates a radio frame for a second type station comprising a frame portion for a first type station and a frame portion for the second type station, wherein the frame portion for the second type station comprises a signal field, a short training field (STF), a long training field (LTF), and a data field, the LTF having a symbol duration that is two or four times longer than the symbol duration of the frame portion for the first type station, and the signal field comprising information about the symbol duration of the LTF for the second type station.

公开(公告)号：US10333751B2

公开(公告)日：2019-06-25

申请号：US15751447

申请日：2016-08-09

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinyoung Chun ,  Jinsoo Choi ,  Hangyu Cho ,  Jinmin Kim ,  Eunsung Park

IPC: H04L27/20 ,  H04L1/00 ,  H04L27/26 ,  H04W84/12

Abstract: Disclosed according to one embodiment of the present invention is a method whereby a first station (STA) transmits signals using dual carrier modulation (DCM) in a wireless LAN system, comprising: modulating HE-SIG B field information and/or data field information on a wireless frame transmitted by the first STA and transmitting same to a second STA, wherein in the case of modulating the HE-SIG B field information and/or the data field information in a BPSK mode, if a random symbol C1 among symbols modulated in the BPSK mode is mapped to a subcarrier K, a symbol formed by rotating the phase of the symbol C1 is mapped to a subcarrier K+N/2 in a repeating manner, wherein N corresponds to the number of subcarriers of a resource unit for transmitting the HE-SIG B field information and the data field information and K is a random integer equal to or less than N/2.

公开(公告)号：US10257837B2

公开(公告)日：2019-04-09

申请号：US15508877

申请日：2015-04-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  H04W72/04 ,  H04L1/00 ,  H04L27/26 ,  H04L5/00 ,  H04W84/12

Abstract: The present invention relates to a method for transmitting a frame in a wireless communication system, in particular, a high density wireless LAN system, and a station apparatus for performing the same. To this end, a station for transmitting a frame configures a radio frame for a second type station, including a frame part for a first type station and a frame part for the second type station, wherein the frame part for the second type station includes a first signaling field (SIG A) for the second type station and a second signaling field (SIG B) for the second type station. The SIG A for the second type station includes modulation and coding scheme (MCS) information applied to the SIG B for the second type station, and the MCS level applied to the SIG B for the second type station supports an MCS having level than the lowest MCS level defined for the first type station.

公开(公告)号：US10097250B2

公开(公告)日：2018-10-09

申请号：US15302924

申请日：2015-03-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/0452 ,  H04L27/26 ,  H04L5/00 ,  H04B1/02 ,  H04L29/08 ,  H04W84/12

Abstract: Provided are a method for transmitting data and a device using the same in a wireless LAN. A transmitter transmits a physical layer protocol data unit (PPDU) in a transmission bandwidth. The PPDU includes a first part to which a first fast Fourier transform (FFT) size is applied, and a second part to which a second FFT size is applied. The number of pilots of the second part is identical to the number of pilots of the first part, and the pilot frequency location of the second part is identical to the pilot frequency location of the first part.

公开(公告)号：US10080240B2

公开(公告)日：2018-09-18

申请号：US15119346

申请日：2014-12-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  H04W74/08 ,  H04W52/14 ,  H04W72/04 ,  H04W84/12

CPC classification number: H04W74/0816 ,  H04W52/143 ,  H04W72/0453 ,  H04W84/12

Abstract: A device and method for transmitting a frame in a wireless LAN, with the method including the steps of: transmitting, by an AP, an RTS frame for medium protection to a first STA set; receiving, by the AP, CTS frames, in sequence, from each of a plurality of STAs included in a second STA set in response to the RTS frame, the second STA set being included in the first STA set; and transmitting, by the AP, each of a plurality of PPDUs to each of the plurality of STAs via each of a plurality of subbands for each of the plurality of STAs on an overlapping time resource.

公开(公告)号：US10045338B2

公开(公告)日：2018-08-07

申请号：US15532365

申请日：2015-12-01

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/08 ,  H04W72/00 ,  H04L12/801 ,  H04L12/54

Abstract: A method for resource allocation in a wireless LAN system according to an embodiment of the present invention is characterized in that an access point (AP) sends a frame comprising a signaling field and a data field to one or more stations, wherein the signaling field comprises a first signaling field (SIG A field) including first common control information for the one or more stations and a second signaling field (SIG B field) including individual control information for each of the one or more stations, wherein the second signaling field includes resource allocation information for data transmission to the one or more stations, and wherein the resource allocation information comprises resource allocation information for data to be transmitted in a frequency band different from a frequency band in which the second signaling field (SIG B field) is transmitted.

公开(公告)号：US20180176066A1

公开(公告)日：2018-06-21

申请号：US15580598

申请日：2016-03-11

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04L25/02 ,  H04L1/18 ,  H04L27/20

CPC classification number: H04L27/2675 ,  H04B7/0452 ,  H04L1/00 ,  H04L1/0031 ,  H04L1/0038 ,  H04L1/0052 ,  H04L1/08 ,  H04L1/1819 ,  H04L5/0048 ,  H04L5/0094 ,  H04L25/0204 ,  H04L25/0224 ,  H04L27/206 ,  H04L27/26 ,  H04L27/2602 ,  H04L2025/0377 ,  H04W84/12

Abstract: A method for receiving a signal by a station (STA) in a wireless LAN system according to an embodiment of the present invention comprises the steps of: receiving a multi-user (MU) frame including a SIG-A field, a SIG-B field and a short training field (STF), and a long training field (LTF) that provides training symbols; and performing blind-decoding of the SIG-B field using a group ID assigned to the STA, wherein the SIG-B field includes information on the number of streams assigned to each of multiple stations that receive the MU frame, and the starting position of a training symbol interval for the STA in the LTF is implicitly indicated by the number of streams assigned to each of other stations in the same group, which share the group ID with the STA, and the order in which the streams are assigned to the STA in the same group.

公开(公告)号：US09936529B2

公开(公告)日：2018-04-03

申请号：US14361468

申请日：2012-11-28

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jiwoong Jang ,  Hangyu Cho ,  Jinsoo Choi

IPC: H04L12/403 ,  H04W76/02 ,  H04W74/06 ,  H04W8/00 ,  H04W8/24

CPC classification number: H04W76/14 ,  H04W8/005 ,  H04W8/24 ,  H04W74/06

Abstract: Disclosed are a method for performing or supporting D2D communication in a wireless communication system and an apparatus therefor. The method for enabling a D2D terminal to perform D2D communication according to the present invention comprises the steps of: receiving polling interval information allocated to transmit a polling signal for the D2D communication from a base station; and transmitting the polling signal to the base station within the allocated polling interval. The polling signal comprises an identifier of the D2D terminal, an identifier of a target D2D terminal selected through a search, and an indicator for indicating the execution of D2D communication.