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：US10015726B2

公开(公告)日：2018-07-03

申请号：US15266872

申请日：2016-09-15

Applicant: LG Electronics Inc.

Inventor： Giwon Park ,  Hangyu Cho ,  Kiseon Ryu

IPC: H04W48/14 ,  H04W48/16 ,  H04W8/22 ,  H04W48/10 ,  H04W84/12

CPC classification number: H04W48/14 ,  H04W8/22 ,  H04W48/10 ,  H04W48/16 ,  H04W84/12

Abstract: Disclosed are a method and an apparatus for active scanning in a wireless LAN. The method for active scanning in a wireless LAN may comprise the steps of: a first station (STA) transmitting a first probe request frame to an access point (AP); and a first STA receiving a probe response frame from the AP, wherein the probe response frame is a response for the probe request frame, and the first probe request frame comprises fast initial link setup (FILS) capability information which can indicate whether the first STA supports FILS.

公开(公告)号：US20180167879A1

公开(公告)日：2018-06-14

申请号：US15840676

申请日：2017-12-13

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04W52/02

CPC classification number: H04W52/0209 ,  H04W52/02 ,  H04W52/0229 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/22

Abstract: A method and an apparatus for a station (STA) to save power in a wireless local area network (WLAN) are provided. For this, the STA receives a MU PPDU (Multi-User Physical Protocol Data unit) comprising A-MPDU (Aggregated MAC Protocol Data Unit) from an AP (Access Point). The STA enters into a doze state until an end of the MU PPDU, when a receiver address of the A-MPDU is equal to the STA's address, and there is an indication indicating a start of EOF (End-Of-Frame) padding.

公开(公告)号：US09979457B2

公开(公告)日：2018-05-22

申请号：US15148902

申请日：2016-05-06

Applicant: LG ELECTRONICS INC.

Inventor： Kyungtae Jo ,  Hangyu Cho ,  Jinmin Kim ,  Eunsung Park ,  Sungjin Park

IPC: H04B7/06 ,  H04B7/0413 ,  H04W16/28 ,  H04W84/12

CPC classification number: H04B7/0634 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/0632 ,  H04B7/0695 ,  H04W16/28 ,  H04W84/12

Abstract: A method and apparatus for performing a beamforming training for a multiple input multiple output (MIMO) operation in a wireless local area network is provided. The apparatus assigns at least one of a plurality of sector groups with respect to each of a plurality of array antennas. The apparatus determines a sector used for a data transmission during a sector sweep by transmitting a plurality of sector sweep messages in the plurality of sector groups through the plurality of array antennas to responders simultaneously.

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：US09942857B2

公开(公告)日：2018-04-10

申请号：US15034855

申请日：2014-11-21

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/24 ,  H04W52/22 ,  H04W84/12

CPC classification number: H04W52/228 ,  H04W52/242 ,  H04W52/243 ,  H04W84/12

Abstract: The present document relates to a method for transmitting and receiving signals by controlling interference on other wireless devices based on actual transmitted power or received power information in a wireless communication system, and an apparatus therefor. To this end, STA 1 receives from STA 2 a frame comprising power information about actual transmitted power or actual received power of STA 2. Through the frame, STA 1 determines transmitted power by correcting the existing transmitted power of STA 1 by using the power information of STA 2 and, when the determined transmitted power of STA 1 is less than or equal to a reference value, transmits signals through the frame.

公开(公告)号：US09924552B2

公开(公告)日：2018-03-20

申请号：US14759175

申请日：2013-11-06

Applicant: LG ELECTRONICS INC.

Inventor： Byungjoo Lee ,  Dongcheol Kim ,  Jinho Kim ,  Wookbong Lee ,  Hangyu Cho

IPC: H04W76/02 ,  H04W8/00 ,  H04W84/12

CPC classification number: H04W76/14 ,  H04W8/005 ,  H04W84/12

Abstract: The present invention relates to a wireless communication system and, more particularly, to a method and apparatus for changing services in a direct communication system. A method for setting up a session in a first wireless device supporting a Wi-Fi direct service, according to one embodiment of the present invention, can include the steps of: setting up a connection between a first wireless device and a second wireless device, which includes a provision discovery process between the first wireless device and the second wireless device for creating a session for a first service; and transmitting a request_session message from the first wireless device to the second wireless device for creating a session for a second service. Session information for the second service can be included in the request_session message.

公开(公告)号：US09924551B2

公开(公告)日：2018-03-20

申请号：US14442381

申请日：2013-11-08

Applicant: LG ELECTRONICS INC.

Inventor： Wookbong Lee ,  Byungjoo Lee ,  Jinho Kim ,  Dongcheol Kim ,  Hangyu Cho

IPC: H04W76/02 ,  H04W84/12 ,  H04L29/08 ,  H04W8/00

CPC classification number: H04W76/14 ,  H04L67/1044 ,  H04L67/146 ,  H04W8/005 ,  H04W84/12

Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting, if an advertiser device is set to delay a session with respect to the request for a session from a seeker device, session delay information to the seeker device in a method for setting Wi-Fi direct service communication and to an apparatus therefor.

公开(公告)号：US09843632B2

公开(公告)日：2017-12-12

申请号：US15370787

申请日：2016-12-06

Applicant: LG ELECTRONICS INC.

Inventor： Byungjoo Lee ,  Dongcheol Kim ,  Jinho Kim ,  Wookbong Lee ,  Hangyu Cho

IPC: H04W4/00 ,  H04L29/08 ,  H04W4/08 ,  H04W8/00 ,  H04W76/02 ,  H04W84/12 ,  H04W72/04 ,  H04W84/18 ,  H04W92/18

CPC classification number: H04L67/1046 ,  H04L67/1044 ,  H04L67/1051 ,  H04W4/08 ,  H04W8/005 ,  H04W72/048 ,  H04W76/14 ,  H04W84/12 ,  H04W84/18 ,  H04W92/18

Abstract: The present invention relates to a wireless communication system, and a method for peer to peer (P2P) group formation is disclosed. To this end, the method for P2P group formation may include transmitting, from a first wireless device to a second wireless device, a provision discovery request frame including connection capabilities of the first wireless device, and receiving, at the first wireless device, from the second wireless device, a provision discovery response frame including connection capabilities of the second wireless device. Here, the connection capabilities may include indicating at least one of: New in order to initiate a new group, Group Owner in order to become a group owner, and Client in order to become a client; and the first wireless device determines the group owner of a P2P group on the basis of the first connection capability and the second connection capability.

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.