公开(公告)号：US10206230B2

公开(公告)日：2019-02-12

申请号：US15690129

申请日：2017-08-29

Applicant: LG ELECTRONICS INC.

Inventor： Hyunhee Park ,  Kiseon Ryu ,  Suhwook Kim ,  Jeongki Kim ,  Jinsoo Choi

IPC: H04W4/00 ,  H04W74/08 ,  H04W72/04 ,  H04W74/00 ,  H04W52/02 ,  H04W84/12 ,  H04W88/02

Abstract: A method for transmitting a frame, performed by a first wireless terminal, in a WLAN system according to one embodiment includes: receiving, from a second wireless terminal, a beacon frame including first parameter set information for first channel access of a plurality of user terminals participating in multi-user uplink transmission, timer information indicating an allowed time allowed for the first parameter set information, first TWT information for a first TWT service period, and second TWT information for a second TWT service period; performing a countdown operation based on a backoff counter set according to the first parameter set information when a trigger frame for individually allocating a plurality of radio resources is received in the first TWT service period; suspending the countdown operation when the countdown operation is not completed until the first TWT service period expires; and resuming the countdown operation when the second TWT service period starts.

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：US10079617B2

公开(公告)日：2018-09-18

申请号：US15034273

申请日：2014-10-21

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Jinyoung Chun ,  Hangyu Cho

IPC: H04B1/713 ,  H04W4/00 ,  H04W48/16 ,  H04W76/02 ,  H04W76/14 ,  H04W4/80 ,  H04W88/06

CPC classification number: H04B1/713 ,  H04W4/80 ,  H04W8/005 ,  H04W48/16 ,  H04W76/14 ,  H04W88/06

Abstract: A device to device (D2D) communication method on the basis of channel hopping may comprise the steps of: a first terminal determining a delay requirement for first link-based D2D communication with a second terminal; the first terminal determining a hopping sequence for first link-based first D2D communication on the basis of the delay requirement; and the first terminal performing first D2D communication with the second terminal on the basis of the hopping sequence, wherein the delay requirement may be a minimum time interval during which data transmission or reception for the first D2D communication is made between a PHY layer and an MAC layer of the first terminal and a PHY layer or an MAC layer of the second terminal.

公开(公告)号：US10051656B2

公开(公告)日：2018-08-14

申请号：US15102864

申请日：2014-12-05

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Giwon Park ,  Hangyu Cho ,  Suhwook Kim

IPC: H04W72/12 ,  H04W72/04 ,  H04W48/12 ,  H04W74/08 ,  H04W76/27

Abstract: The present document relates to a wireless communication system and, more particularly, to a method for performing communication using a downlink (DL) oriented channel in a high-density wireless LAN system and an apparatus therefor. A particular station STA1 configured therefor connects with an AP through a normal channel, switches to a downlink oriented channel during an active mode operation, and receives data from the AP through the DL oriented channel. Meanwhile, data is transmitted to the AP through switching to the normal channel. Here, the first station obtains information on a specific interval for receiving data from the AP through the downlink oriented channel, switches to the normal channel during an interval other than the specific interval, and transmits data to the AP.

公开(公告)号：US09961635B2

公开(公告)日：2018-05-01

申请号：US15110705

申请日：2015-01-12

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Suhwook Kim

IPC: H04W52/02 ,  H04W28/02 ,  H04W84/12 ,  H04L12/851 ,  H04W88/08

CPC classification number: H04W52/0216 ,  H04L47/245 ,  H04W28/0221 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/23

Abstract: Disclosed are a method and an apparatus for operating based on a power save mode in a wireless LAN. The method for operating based on the power save mode in a wireless LAN may comprise the steps of: an AP receiving, from a first STA, a first trigger frame for triggering the transmission of first downlink data which has been buffered for the first STA; the AP determining a temporary halt of the transmission the first downlink data, which is transmitted as a response to the first trigger frame, based on a first priority rank of the first downlink data which has been buffered for the first STA, a second priority rank of second downlink data which has been buffered for a second STA, and a point when the second STA is switched to an awake state; and the AP transmitting, to the first STA, a temporary halt setting frame for indicating the temporary halt.

公开(公告)号：US09854625B2

公开(公告)日：2017-12-26

申请号：US15025011

申请日：2014-10-22

Applicant: LG ELECTRONICS INC.

Inventor： Dongcheol Kim ,  Suhwook Kim ,  Hangyu Cho ,  Byungjoo Lee

IPC: H04W76/06 ,  H04W74/08 ,  H04L12/733 ,  H04W56/00 ,  H04W84/12

CPC classification number: H04W76/36 ,  H04L45/20 ,  H04W56/0015 ,  H04W74/0808 ,  H04W84/12

Abstract: A method for transmitting a signal by a neighbor awareness networking (NAN) terminal in a wireless communication system, according to embodiment of the present invention, comprises the steps of: sensing a medium in a discovery window; selecting a back-off count value when the medium is in an occupied state; and transmitting a service discovery frame after performing countdown on the basis of the back-off count value, wherein an interval in which the back-off count value is determined on the basis of at least one of an interval in which a back-off count value for transmitting a synchronization beacon frame is selected, the length of the discovery window, and a hop count value of the terminal.

公开(公告)号：US09794937B2

公开(公告)日：2017-10-17

申请号：US15034632

申请日：2014-10-21

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Jinyoung Chun ,  Hangyu Cho

IPC: H04W72/04 ,  H04B1/713 ,  H04W74/08 ,  H04W76/02 ,  H04B1/69

CPC classification number: H04W72/0446 ,  H04B1/713 ,  H04B2001/6908 ,  H04W74/0816 ,  H04W76/14

Abstract: Disclosed are a D2D communication method and device on the basis of a hopping sequence. A D2D communication method on the basis of a hopping sequence may comprise the steps of: obtaining information on a reference hopping sequence by a terminal wherein the reference hopping sequence is a current hopping sequence of a target terminal which will perform first D2D communication on the basis of a first link with the terminal; determining a final hopping sequence for performing the first D2D communication by the terminal on the basis of whether the terminal is an initial access terminal or a multi-access terminal and whether the current hopping sequence of the terminal is the same as at least one of communicable hopping sequences corresponding to a reference sequence and the reference hopping sequence; and performing the first D2D communication by the terminal on the basis of the final hopping sequence.

公开(公告)号：US09706386B2

公开(公告)日：2017-07-11

申请号：US14781447

申请日：2014-04-03

Applicant: LG Electronics Inc.

Inventor： Suhwook Kim ,  Jinyoung Chun ,  Hangyu Cho

IPC: H04W4/00 ,  H04W8/00 ,  H04W76/02 ,  H04B1/713 ,  H04J13/00 ,  H04L12/26 ,  H04W56/00 ,  H04W72/04

CPC classification number: H04W8/005 ,  H04B1/713 ,  H04J13/0074 ,  H04L43/12 ,  H04W56/001 ,  H04W72/04 ,  H04W76/14

Abstract: The present invention relates to a method for making device to device (D2D) communication. More specifically, the step of enabling a first device communicating with another device through channel hopping to find a second device for communication further includes the steps of: finding the second device based on a first channel hopping sequence in a first time interval within the entire find cycle during which the first device performs the channel hopping; and setting the first device so as to perform the channel hopping based on a second channel hopping sequence in a second time interval within the entire find cycle, wherein the entire find cycle of the first device is determined based on the second channel hopping sequence in the second time interval and the number of repeated second channel hopping sequences.

公开(公告)号：US09485769B2

公开(公告)日：2016-11-01

申请号：US14396443

申请日：2013-04-25

Applicant: LG Electronics Inc.

Inventor： Suhwook Kim ,  Wookbong Lee ,  Jinsam Kwak

IPC: H04W72/04 ,  H04W84/12 ,  H04W16/14

CPC classification number: H04W72/0453 ,  H04W16/14 ,  H04W84/12

Abstract: The present invention relates to a wireless communication system and, more specifically, to a method and an apparatus for determining an operating channel. The method for determining the operating channel of a station (STA) in a TV whitespace (TVWS) wireless LAN system, according to one embodiment of the present invention, comprises the steps of: receiving information on an index which indicates an operating class including channel start frequency, channel spacing, and channel set parameters; and determining a main frequency of the operating channel on the basis of the parameters indicated by the index of the operating class. The main frequency of the operating channel can be determined on the basis of a correction value which is set differently according to the configuration of a basic channel unit of the operating channel.

Abstract translation: 无线通信系统技术领域本发明涉及一种无线通信系统，更具体地，涉及用于确定操作信道的方法和装置。 根据本发明的一个实施例，用于确定电视空白（TVWS）无线LAN系统中的台站（STA）的操作信道的方法包括以下步骤：接收关于指示包括频道的操作类别的索引的信息 起始频率，信道间隔和信道设置参数; 并且基于由所述操作类的索引指示的参数来确定所述操作信道的主频率。 可以基于根据操作信道的基本信道单元的配置而不同地设置的校正值来确定操作信道的主频率。

公开(公告)号：US09445434B2

公开(公告)日：2016-09-13

申请号：US14377534

申请日：2013-02-08

Applicant: LG Electronics Inc.

Inventor： Suhwook Kim ,  Jinsam Kwak ,  Wookbong Lee ,  Seunghee Han

IPC: H04W74/08 ,  H04W16/14

CPC classification number: H04W74/0808 ,  H04W16/14

Abstract: One embodiment of the present invention relates to a method for transmitting a signal by a terminal in a wireless communication system which comprises a step wherein, during a predetermined time period in one portion of the frequency bandwidths from among the frequency bandwidths of channels used by said terminal, a carrier wave sensing signal of another terminal is transmitted in which information on the frequency bandwidths of the channel is included.

Abstract translation: 本发明的一个实施例涉及一种在无线通信系统中由终端发送信号的方法，该无线通信系统包括以下步骤：在所述频带所使用的信道的频带宽度的频带宽度的一部分中的预定时间段内， 发送另一个终端的载波检测信号，其中包括关于频道的频率带宽的信息。