公开(公告)号：US20180205584A1

公开(公告)日：2018-07-19

申请号：US15743998

申请日：2015-12-04

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Jinsoo CHOI ,  Hangyu CHO ,  Jinmin KIM ,  Eunsung PARK

IPC: H04L27/26 ,  H04W72/04

CPC classification number: H04L27/2608 ,  H04L5/001 ,  H04L5/0055 ,  H04L5/0092 ,  H04W48/14 ,  H04W72/04 ,  H04W72/121 ,  H04W74/04 ,  H04W84/12

Abstract: A method for receiving a signal by a station in a wireless LAN system, according to an embodiment of the present invention, comprises the steps of: receiving one of a plurality of per channel SIG-Bs, comprised in a SIG-B field, via a first channel among the transmission bandwidth of a multi-user (MU) frame comprising SIG-B field and data; and receiving the data of the MU frame on a second channel differing from the first channel via which the per channel SIG-Bs have been received. Although any one of the plurality of per channel SIG-Bs is transmitted on the second channel, the data of the MU frame is received by means of the per channel SIG-Bs that are transmitted on the first channel instead of the per channel SIG-Bs that are transmitted on the second channel.

公开(公告)号：US20180160399A1

公开(公告)日：2018-06-07

申请号：US15854687

申请日：2017-12-26

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Hangyu CHO

IPC: H04W72/04 ,  H04B7/026 ,  H04W4/00

CPC classification number: H04W72/04 ,  H04B7/026 ,  H04W4/70

Abstract: The present invention relates to a method for performing a device-to-device cooperative transmission (D2D CT) using a multi-carrier in a wireless access system, including the steps of: enabling a source device to perform a network entry process with a base station using a primary carrier; enabling the source device to receive control information related to a dedicated carrier used for D2D CT from the base station through the primary carrier; and enabling the source device to transmit an uplink signal to a collaborative device using the dedicated carrier.

公开(公告)号：US20180152953A1

公开(公告)日：2018-05-31

申请号：US15572302

申请日：2016-05-04

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin PARK ,  Kyungtae JO ,  Jinmin KIM ,  Eunsung PARK ,  Hangyu CHO

IPC: H04W72/12 ,  H04W72/04

CPC classification number: H04W72/12 ,  H04L5/0007 ,  H04L5/0037 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/1268 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

Abstract: The present specification relates to a method for transmitting, by a station (STA), data through channel bonding in a wireless LAN (WLAN) system, and an apparatus therefor. The station therefor receives scheduling information from an access point (AP), wherein the scheduling information includes information on a channel-bonding beacon interval and information on a non-channel-bonding beacon interval. If the station has channel-bonding capability and data to be transmitted through channel bonding, the station can transmit the data on the basis of the channel bonding through the channel-bonding beacon interval.

公开(公告)号：US20180124788A1

公开(公告)日：2018-05-03

申请号：US15566205

申请日：2016-04-25

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Hangyu CHO ,  Wookbong LEE

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  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：US20180115947A1

公开(公告)日：2018-04-26

申请号：US15567432

申请日：2016-05-16

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Jinsoo CHOI ,  Hangyu CHO

IPC: H04W52/02 ,  H04W76/28

Abstract: According to an embodiment of the present invention, a method in which a station (STA) operates in a power saving (PS) mode in a wireless LAN system supporting a high efficiency physical layer protocol data unit (HE PPDU) comprises the steps of: receiving a trigger frame for allocating a resource for uplink multi-user (UL MU) PPDU transmission; and determining whether the STA shifts into a doze state, on the basis of the trigger frame, wherein the STA determines to shift into the doze state when the resource is not allocated to the STA through the trigger frame, and a time interval in which the STA operates in the doze sate may be determined on the basis of a PS mode field included in the trigger frame.

公开(公告)号：US20180115451A1

公开(公告)日：2018-04-26

申请号：US15840539

申请日：2017-12-13

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Wookbong LEE ,  Hangyu CHO ,  Dongguk LIM ,  Jinyoung CHUN

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2633 ,  H04L5/0007 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2666

Abstract: A method and a device for transmitting a data unit are disclosed. A method for transmitting a PPDU can comprise the steps of: generating, by an STA, the PPDU including a first portion and a second portion; and transmitting, by the STA, the PPDU, wherein the first portion is generated by performing IFFT according to a first FFT size, the second portion is generated by performing IFFT according to a second FFT size, and the first FFT size can differ from the second FFT size.

公开(公告)号：US20180098352A1

公开(公告)日：2018-04-05

申请号：US15567489

申请日：2016-05-16

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Jinsoo CHOI ,  Hangyu CHO

IPC: H04W74/04

CPC classification number: H04W74/04 ,  H04L1/00 ,  H04L1/1685 ,  H04W12/06 ,  H04W74/08 ,  H04W84/12

Abstract: According to an embodiment of the present invention, a method for managing a network allocation vector (NAV) by a station (STA) in a wireless LAN system supporting a high efficiency physical layer protocol data unit (HE PPDU) comprises the steps of: receiving a frame including an HE-SIG A field and an MAC header; and updating an NAV on the basis of a transmission opportunity duration (TXOP) field included in the HE-SIG A field, wherein, in the step of updating the NAV, the STA may set, for the NAV of the STA, a TXOP duration value indicated by the TXOP duration field when the TXOP duration value indicated by the TXOP duration field is larger than a current NAV value configured by the STA, and the STA may reset the NAV of the STA without comparison with the current NAV value when the TXOP duration field indicates a predetermined value.

公开(公告)号：US20170373911A1

公开(公告)日：2017-12-28

申请号：US15524873

申请日：2015-11-30

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Hangyu CHO ,  Wookbong LEE ,  Jinsoo CHOI ,  Jiwon KANG

IPC: H04L27/26 ,  H04L27/38

CPC classification number: H04L27/2694 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/26 ,  H04L27/2613 ,  H04L27/2621 ,  H04L27/3872

Abstract: Disclosed is a sequence generation method comprising: generating a basic sequence structure including C48 having 48 tones, X6 having six tones, and X5 having five tones; selecting any one of a plurality of phase rotation factors predetermined for a bandwidth; and generating a sequence to be inputted into a preamble to be transmitted to a terminal, by using the phase rotation factor, applied in basic sequence structural units, and the basic sequence structure.

公开(公告)号：US20170373908A1

公开(公告)日：2017-12-28

申请号：US15524785

申请日：2015-11-27

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Jinyoung CHUN ,  Wookbong LEE ,  Dongguk LIM ,  Hangyu CHO ,  Eunsung PARK

IPC: H04L27/26 ,  H04B7/0452 ,  H04B7/06 ,  H04W84/12

CPC classification number: H04L27/2675 ,  H04B7/0452 ,  H04B7/0697 ,  H04L5/0048 ,  H04L27/2613 ,  H04W84/12

Abstract: Disclosed are a method and a device for transmitting data based on different pilot tone patterns in a wireless LAN. The method for transmitting data based on the different pilot tone patterns in a wireless LAN may comprise the steps of: an AP transmitting, to a first STA, a first data field generated based on a first pilot tone pattern, from a first frequency bandwidth; and the AP transmitting, to a second STA, a second data field generated based on a second pilot tone pattern, from a second frequency bandwidth, wherein the size of the first frequency bandwidth is n times larger than the size of the second frequency bandwidth, the size of IFFT applied to the first data field and the size of IFFT applied to the second data field are identical, the first pilot tone pattern includes a plurality of first pilot tones, wherein the plurality of first pilot tones are respectively allocated to each of a plurality of first pilot tone indexes, the second pilot tone pattern includes a plurality of second pilot tones, wherein the plurality of second pilot tones are respectively allocated to each of a plurality of second pilot tone indexes, and wherein a portion of the first pilot tone indexes may be identical to the plurality of second pilot tone indexes.

公开(公告)号：US20170373808A1

公开(公告)日：2017-12-28

申请号：US15548706

申请日：2015-11-30

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Wookbong LEE ,  Hangyu CHO

IPC: H04L5/00 ,  H04B7/0413 ,  H04L29/08 ,  H04W84/12

CPC classification number: H04L5/005 ,  H04B7/0413 ,  H04L5/0023 ,  H04L5/0037 ,  H04L27/2613 ,  H04L27/266 ,  H04L27/2672 ,  H04L69/323 ,  H04L69/324 ,  H04W84/12

Abstract: Disclosed are a method for multi-user transmission and reception in a wireless communication system and a device for same. More particularly, a method for performing multi-user (MU) transmission by a station (STA) device in a wireless communication system comprises the steps of: generating a high efficiency-long training field (HE-LTF) sequence in a frequency domain in accordance with an MU transmission bandwidth; and transmitting a physical protocol data unit (PPDU) which comprises one or more symbols to which the HE-LTF sequence is mapped, wherein the HE-LTF sequence can be generated by multiplying one row of a P matrix to a length unit of a row of the P matrix in a predetermined sequence.