公开(公告)号：US10038535B2

公开(公告)日：2018-07-31

申请号：US15302922

申请日：2015-02-16

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04L5/005 ,  H04B7/0417 ,  H04B7/0452 ,  H04L5/001 ,  H04W84/12

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：US10034244B2

公开(公告)日：2018-07-24

申请号：US15319350

申请日：2015-06-10

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W72/04 ,  H04W72/12 ,  H04W84/12

Abstract: Disclosed are a method and apparatus for transmitting and receiving periodic data on the basis of a power save mode in a wireless LAN. The method for transmitting and receiving periodic data in a wireless LAN comprises: a step for receiving, by an access point (AP), each of a plurality of uplink frames including periodic uplink/downlink transmission fields, from each of a plurality of stations (STA); a step for determining, by the AP, a downlink resource for each of the plurality of periodic downlink frames to be transmitted to each of the plurality of STAs, and an uplink resource for each of the plurality of periodic uplink frames to be transmitted by each of the plurality of STAs; and a step for transmitting, by the AP, a multi-user (MU) scheduling frame including information on the downlink resource and information on the uplink resource, to each of the plurality of STAs.

公开(公告)号：US09967061B2

公开(公告)日：2018-05-08

申请号：US15125107

申请日：2014-11-06

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/18 ,  H04J3/24 ,  G08C25/02 ,  H04L1/18 ,  H04L5/00 ,  H04L12/741 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04L1/1809 ,  H04L1/0088 ,  H04L1/1614 ,  H04L1/18 ,  H04L1/1819 ,  H04L1/1896 ,  H04L5/0023 ,  H04L5/0055 ,  H04L45/74 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

Abstract: Disclosed are a method and an apparatus for retransmission in a wireless LAN. The method for retransmission in a wireless LAN may comprise the steps in which: an STA receives an RTS frame from an AP; the STA transmits a CTS frame to the AP in response to the RTS frame; the STA receives an initial data frame from the AP after transmitting the CTS frame; if decoding on the initial data frame is impossible, the STA transmits a retransmission request frame to the AP; and the STA receives a retransmission data frame from the AP in response to the retransmission request frame.

公开(公告)号：US09860755B2

公开(公告)日：2018-01-02

申请号：US14401203

申请日：2013-04-01

Applicant: LG Electronics Inc.

Inventor： Wookbong Lee ,  Jinsam Kwak ,  Suhwook Kim ,  Jinsoo Choi

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

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

Abstract: The present invention relates to a method for setting operating channels in a white space region and to an apparatus therefor. In particular, the method for a device to set operating channels in a white space region includes the steps of: obtaining information on available TV channels from a geolocation database; and setting operating channels including multiple bandwidths in a plurality of consecutive TV channels, wherein the central frequencies of signals that are transmitted over two consecutive TV channels included in the plurality of consecutive TV channels, respectively, can be moved by as much as a first offset (m) and a second offset (n) in the direction of the center of the two consecutive TV channels, respectively.

公开(公告)号：US09832801B2

公开(公告)日：2017-11-28

申请号：US14891187

申请日：2014-05-16

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Jinyoung Chun ,  Hangyu Cho

IPC: H04W76/02 ,  H04W4/00 ,  H04W8/00 ,  H04W4/06 ,  H04W48/00

CPC classification number: H04W76/14 ,  H04W4/06 ,  H04W4/38 ,  H04W4/70 ,  H04W8/005 ,  H04W48/17

Abstract: The present invention relates to a method for performing device-to-device (D2D) communication in a wireless communication system. Particularly, the method comprises the step of discovering, by a first device performing channel hopping and D2D communication, a second device for which a new D2D communication is to be performed, wherein: the first device discovers the second device on the basis of a first channel hopping sequence in a first time interval within a total discovery period which is a channel hopping period, and is configured to perform channel hopping on the basis of a second channel hopping sequence in a second time interval within the total discovery period; and the total discovery period of the first device is determined on the basis of the second channel hopping sequence in the second time interval and the number of repetitions of the second channel hopping sequence.

公开(公告)号：US09807792B2

公开(公告)日：2017-10-31

申请号：US14906525

申请日：2014-08-04

Applicant: LG ELECTRONICS INC.

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

IPC: G08C17/00 ,  H04W74/00 ,  H04W28/18 ,  H04W52/02 ,  H04W76/04 ,  H04W84/12

CPC classification number: H04W74/006 ,  H04W28/18 ,  H04W52/0229 ,  H04W74/00 ,  H04W74/0816 ,  H04W76/27 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/21 ,  Y02D70/22

Abstract: A method and an apparatus for accessing a channel are disclosed. The method of an STA accessing a channel may comprise the steps of: and STA that is operable in a power-saving mode switching from a sleep state to an active state during a beacon interval; the STA monitoring a channel access parameter frame after being switched to the active state; the STA receiving the channel access parameter frame from an AP, wherein the channel access parameter frame includes EDCA set determining information; and the STA accessing a channel using an EDCA parameter determined on the basis of the EDCA set determining information, wherein the channel access parameter frame can be transmitted at least once between beacon intervals.

公开(公告)号：US09635632B2

公开(公告)日：2017-04-25

申请号：US14766090

申请日：2014-02-18

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Jinyoung Chun ,  Hangyu Cho

IPC: H04W56/00 ,  H04W76/02

CPC classification number: H04W56/002 ,  H04W56/0015 ,  H04W76/14

Abstract: The present invention relates to a method for device-to-device communication (D2D) in a wireless communication system. Particularly, the method is characterized in that when a device, which has been conducting device-to-device communication, additionally conducts device-to-device communication with a new device, a channel sequence of the device conducting the communication is determined, one of two devices conducting the device-to-device communication is determined as a reference device for channel synchronization and channel synchronization is thereby performed.

公开(公告)号：US09294278B2

公开(公告)日：2016-03-22

申请号：US14351123

申请日：2012-10-10

Applicant: LG ELECTRONICS INC.

Inventor： Yunjung Yi ,  Jaewon Lim ,  Insun Lee ,  Bonghoe Kim ,  Suhwook Kim

IPC: H04K1/00 ,  H04L9/30 ,  H04W84/12 ,  H04L29/06 ,  H04W12/02 ,  H04W12/06 ,  H04W12/04

CPC classification number: H04L9/30 ,  H04L63/12 ,  H04L2209/24 ,  H04L2209/80 ,  H04W12/02 ,  H04W12/04 ,  H04W12/06 ,  H04W84/12

Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for performing WLAN-based P2P communication at the state where a P2P apparatus is connected to a cellular network and to a first P2P apparatus for the method. The method comprises: a step of receiving one or more pieces of key information from a cellular base station, each piece of key information including a key value corresponding to service identification information; a step of receiving an encryption data signal from a second P2P apparatus; and a step of performing a process of attempting to decrypt said encrypted data signal using one or more keys corresponding to one or more services in which said first P2P apparatus is interested, from among said one or more pieces of key information.

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，本发明涉及一种在P2P设备连接到蜂窝网络的状态下进行基于WLAN的P2P通信的方法以及用于该方法的第一P2P设备。 该方法包括：从蜂窝基站接收一个或多个密钥信息的步骤，每个密钥信息包括与服务识别信息相对应的密钥值; 从第二P2P设备接收加密数据信号的步骤; 以及从所述一个或多个密钥信息中执行使用与所述第一P2P设备感兴趣的一个或多个服务对应的一个或多个密钥来尝试解密所述加密数据信号的处理的步骤。

公开(公告)号：US20160037323A1

公开(公告)日：2016-02-04

申请号：US14781447

申请日：2014-04-03

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Jinyoung Chun ,  Hangyu Cho

IPC: H04W8/00 ,  H04W56/00 ,  H04L12/26 ,  H04W72/04 ,  H04W76/02

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.

Abstract translation: 本发明涉及一种用于制造设备到设备（D2D）通信的方法。 更具体地，使第一设备通过信道跳频与另一个设备通信以找到用于通信的第二设备的步骤还包括以下步骤：在整个查找内的第一时间间隔内基于第一信道跳频序列找到第二设备 第一设备执行信道跳跃期间的周期; 以及设置所述第一设备，以便在整个查找周期内的第二时间间隔中基于第二信道跳频序列执行所述信道跳频，其中，基于所述第一设备的第二信道跳频序列来确定所述第一设备的整个查找周期 第二时间间隔和重复的第二信道跳频序列的数量。

公开(公告)号：US20150078287A1

公开(公告)日：2015-03-19

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

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别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。