公开(公告)号：US10063359B2

公开(公告)日：2018-08-28

申请号：US15246104

申请日：2016-08-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04W84/12 ,  H04L5/00 ,  H04L1/16 ,  H04L1/00

Abstract: An ACK signal processing method that can be used in a wireless LAN system is proposed. Various information that can be used for a downlink MU PPDU for multiple receiving stations may be proposed, and, for example, in order to omit the re-transmission of the related art, information requesting an ACK or Block ACK corresponding to previously transmitted data may be included. If an immediate acknowledgement (ACK) frame fails to be received after the MU-PPDU is transmitted from the AP, a Block ACK may be requested. In this case, while a Block ACK is requested, a radio resource through which a Block ACK is delivered may be allocated.

公开(公告)号：US20180213558A1

公开(公告)日：2018-07-26

申请号：US15578420

申请日：2016-06-09

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Hangyu Cho ,  Jinmin Kim

IPC: H04W74/08

CPC classification number: H04W74/08 ,  H04W74/006 ,  H04W84/12

Abstract: A method for managing a NAV (network allocation vector) by a station (STA) in a wireless communication LAN system according to an embodiment of the present invention comprises the steps of: receiving a frame including duration information; and changing a NAV timer of the STA on the basis of the duration information of the frame. When an event occurs for a reset of the NAV timer, the STA may determine whether to reset the NAV timer in consideration of the remaining time that existed in the NAV timer right before the NAV timer was changed.

公开(公告)号：US10034242B2

公开(公告)日：2018-07-24

申请号：US15324667

申请日：2015-06-10

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04L5/00 ,  H04W72/04 ,  H04L12/18 ,  H04W84/12

Abstract: Disclosed are a method and an apparatus for power save mode operation on the basis of a frame transmitted from another BSS in a wireless LAN. A method for operating an STA in a wireless LAN in a power save mode comprises: a step in which the STA receives a beacon frame from an AP, the beacon frame comprising a TIM element indicating downlink data pending in the STA; a step in which the STA transmits a PS-poll frame to the AP in response to the beacon frame; a step in which the STA receives, from the AP, an ACK frame transmitted by the AP in response to the PS-poll frame; and a step in which the STA determines the operation of the another BSS in a TXOP power save mode on the basis of the ACK frame.

公开(公告)号：US09999054B2

公开(公告)日：2018-06-12

申请号：US15060457

申请日：2016-03-03

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04B7/0413 ,  H04L1/00 ,  H04L5/00 ,  H04L29/08 ,  H04W48/12 ,  H04W84/12

CPC classification number: H04W72/0453 ,  H04B7/0413 ,  H04L1/0057 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0053 ,  H04L69/323 ,  H04W48/12 ,  H04W72/042 ,  H04W84/12

Abstract: A method and apparatus for transmitting a multi-user or multi-Station (multi-STA) radio frame including control information in a Wireless Local Area Network (WLAN) system are disclosed. The method includes generating a frame including a signaling field and a data field, and transmitting the generated frame to the plurality of STAs. The signaling field includes a first signaling field (a SIG A field) including control information for frame interpretation and a second signaling field (a SIG B field) including control information individually for each of the plurality of STAs, the second signaling field includes a first block including common control information for the plurality of STAs, and a second block including control information for each of the plurality of STAs.

公开(公告)号：US09974016B2

公开(公告)日：2018-05-15

申请号：US15113398

申请日：2014-11-20

Applicant: LG ELECTRONICS INC.

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

IPC: G08C17/00 ,  H04W52/02 ,  H04W84/12

CPC classification number: H04W52/0216 ,  H04W52/0225 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/23

Abstract: A power save mode-based operation method and device in a wireless LAN are disclosed. The power save mode-based operation method and device in a wireless LAN can comprise the steps of: transmitting, by an STA, a first trigger frame to an AP in a first service interval; receiving, by the STA, a downlink frame transmitted by the AP on the basis of the first trigger frame in the first service interval; receiving, by the STA, traffic indication information from the AP in a second service interval after reception of the downlink frame; determining, by the STA, whether a pending downlink frame of the AP exists on the basis of the traffic indication information in the second service interval; and determining, by the STA, a mode for saving power on the basis of whether the pending downlink frame exists.

公开(公告)号：US09900871B1

公开(公告)日：2018-02-20

申请号：US15679838

申请日：2017-08-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04L5/00 ,  H04W84/12 ,  H04W72/12

CPC classification number: H04W72/0413 ,  H04L5/0051 ,  H04L5/0055 ,  H04L5/0094 ,  H04W72/0446 ,  H04W72/1236 ,  H04W72/1242 ,  H04W84/12

Abstract: A method for transmitting an uplink frame in a wireless LAN system performed by a first wireless device includes the steps of receiving a basic trigger frame individually allocating a plurality of uplink wireless resources for a plurality of user devices from a second wireless device, wherein the basic trigger frame may include preference information indicating a AC type for an aggregation traffic, determining an existence or non-existence of a plurality of first buffered MPDUs corresponding to a plurality of first traffic identifiers for the first AC type or for a second AC type having a higher priority level than the first AC type, and configuring the aggregation traffic based on a plurality of second selected MPDUs corresponding to any one traffic identifier among a plurality of second traffic identifiers for a third AC type having a lower priority level than the first AC type.

公开(公告)号：US20180034595A1

公开(公告)日：2018-02-01

申请号：US15548698

申请日：2016-01-29

Applicant: LG Electronics Inc.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04L1/16 ,  H04L1/18 ,  H04L5/00

CPC classification number: H04L1/1671 ,  H04L1/1614 ,  H04L1/1685 ,  H04L1/1854 ,  H04L1/1896 ,  H04L5/0055 ,  H04W72/042 ,  H04W72/1278

Abstract: According to the present invention an AP transmits a trigger frame to a plurality of stations (STAs), and transmits an ACK/NACK signal for data received from the plurality of STAs when the data is received from the plurality of STAs in response to the trigger frame. At this time, an ACK policy value having a specific value is set in one or more STAs among the plurality of STAs, the AP transmits, through a multi-user block ACK (M-BA) frame, an ACK/NACK signal for STAs excluding the one or more STAs among the plurality of STAs, and the ACK/NACK signal for the one or more STAs is transmitted in response to a block ACK request message received from the one or more STAs.

公开(公告)号：US09854605B2

公开(公告)日：2017-12-26

申请号：US15109565

申请日：2014-11-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/02 ,  H04W74/00 ,  H04W74/08 ,  H04L5/00 ,  H04W84/12

CPC classification number: H04W74/02 ,  H04L5/0033 ,  H04W74/004 ,  H04W74/0816 ,  H04W84/12

Abstract: Disclosed are a method and an apparatus for transmitting an uplink frame in a wireless LAN. The method for transmitting an uplink frame in a wireless LAN may comprise: a step in which an STA receives a downlink PPDU from an AP through a downlink dedicated channel; a step in which the STA performs a first channel switching from the downlink dedicated channel to a general channel on the basis of information about TXOP duration for transmitting the downlink PPDU if STA indication information included in the received downlink PPDU does not indicate the STA and a pending uplink frame is present in the STA; a step in which the STA performs a channel access for transmitting the uplink frame via the general channel on a time resource corresponding to the TXOP duration; and a step in which the STA performs a second channel switching from the general channel to the downlink dedicated channel on the basis of the information about TXOP duration.

公开(公告)号：US09661560B2

公开(公告)日：2017-05-23

申请号：US14419434

申请日：2013-08-08

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Kiseon Ryu ,  Hangyu Cho ,  Jinsam Kwak

IPC: H04L1/00 ,  H04W48/16 ,  H04W76/02 ,  H04W84/12

CPC classification number: H04W48/16 ,  H04W76/10 ,  H04W84/12

Abstract: A scanning method and apparatus in wireless LAN is disclosed. The method comprises determining, by an access point (AP), whether to accommodate a station (STA) conducting an initial link setup and transmitting, by the AP, a frame to the STA, the frame including scanning redirection information for the STA to switch other channel, other band, or a neighbor AP when the AP determines not to accommodate the STA. The scanning redirection information includes a band field and a channel field. The band field indicating a band in which the STA conducts the initial link setup when the STA conducts the initial link setup from current band to the other band. The channel field indicating a channel in which the STA conducts the initial link setup when the STA conducts the initial link setup from current channel to the other channel.

公开(公告)号：US09572092B2

公开(公告)日：2017-02-14

申请号：US14431680

申请日：2013-10-15

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04W4/00 ,  H04M1/00 ,  H04B1/38 ,  H04B7/00 ,  H04W48/16 ,  H04W48/14 ,  H04W84/14 ,  H04W84/12

CPC classification number: H04W48/16 ,  H04W48/14 ,  H04W84/12 ,  H04W84/14

Abstract: A method and corresponding device for performing active scanning in a wireless local area network (LAN). The method includes: receiving, by a first station (STA), a second probe request frame from a second STA, wherein the second probe request frame is transmitted based on broadcast; and determining, by the first STA, whether to transmit a first probe request frame for an active scanning based on the second probe request frame. The first STA determines not to transmit the first probe request frame if the first STA is capable of receiving information related to an AP to be associated based on the second probe request frame.

Abstract translation: 一种用于在无线局域网（LAN）中执行主动扫描的方法和相应设备。 该方法包括：由第一站（STA）从第二STA接收第二探测请求帧，其中基于广播发送第二探测请求帧; 以及由所述第一STA确定是否基于所述第二探测请求帧发送用于主动扫描的第一探测请求帧。 如果第一STA能够基于第二探测请求帧来接收与要关联的AP相关的信息，则第一STA确定不发送第一探测请求帧。