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：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：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：US09560576B2

公开(公告)日：2017-01-31

申请号：US14418054

申请日：2013-08-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W48/06 ,  H04W84/12 ,  H04W48/12 ,  H04W74/00

CPC classification number: H04W48/06 ,  H04W48/12 ,  H04W74/006 ,  H04W74/0875 ,  H04W84/12

Abstract: A method and device for performing channel access in a wireless LAN are disclosed. An initial channel access method of a station STA in a wireless LAN may include: receiving, from an access point (AP) by the station STA, a frame including information on a channel state, information on a channel access protection section and information on a station STA capable of performing channel access in the channel access protection section; determining a channel access priority by a station STA when the information on the channel state indicates that a wireless link is in a congestion state; and performing initial channel access in the channel access protection section based on the channel access priority determined by the station STA and the information on the station STA capable of performing channel access in the channel access protection section.

Abstract translation: 公开了一种用于在无线LAN中执行信道接入的方法和装置。 无线LAN中的站STA的初始信道接入方法可以包括：从站STA的接入点（AP）接收包括关于信道状态的信息的帧，关于信道访问保护部分的信息和关于信道访问保护部分的信息 能够在信道接入保护部分中执行信道接入的台站STA; 当关于信道状态的信息指示无线链路处于拥塞状态时，由站STA确定信道接入优先级; 并且基于由站STA确定的信道访问优先级和能够在信道访问保护部分中执行信道访问的站STA的信息，在信道接入保护部分中执行初始信道接入。

公开(公告)号：US09544836B2

公开(公告)日：2017-01-10

申请号：US14398608

申请日：2013-05-09

Applicant: LG Electronics Inc.

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

IPC: H04W4/00 ,  H04W48/16 ,  H04W88/08 ,  H04W84/12

CPC classification number: H04W48/16 ,  H04W84/12 ,  H04W88/08

Abstract: Disclosed are a scanning method and a scanning apparatus. The scanning method for a station (STA) comprises the steps of: transmitting a probe request frame including a scanning priority for a plurality of access points (APs); and sequentially monitoring for the reception of a probe response frame, which is a response to the probe request frame, from at least one of the plurality of Aps for the plurality of APs on the basis of the scanning priority. Thus, scanning processes can be quickly performed.

Abstract translation: 公开了一种扫描方法和扫描装置。 站（STA）的扫描方法包括以下步骤：发送包括多个接入点（AP）的扫描优先级的探测请求帧; 根据扫描优先顺序从多个AP的多个Ap中的至少一个依次监视作为对探测请求帧的响应的探测响应帧的接收。 因此，可以快速执行扫描处理。

公开(公告)号：US09521609B2

公开(公告)日：2016-12-13

申请号：US14421416

申请日：2013-08-13

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Yongho Seok ,  Jinsam Kwak ,  Jinsoo Choi ,  Kiseon Ryu ,  Giwon Park

IPC: H04W4/00 ,  H04W48/16 ,  H04W48/14 ,  H04W48/20 ,  H04W84/12

CPC classification number: H04W48/16 ,  H04W48/14 ,  H04W48/20 ,  H04W84/12 ,  H04W88/08

Abstract: The present invention relates to a method and a device for updating system information in a wireless LAN system. A method for updating system information in a station (STA) of a wireless communication system may comprise transmitting, by the STA which stores system information and a configuration change count value of a previously linked preferred access point (AP), a probe request frame for active scanning to the preferred AP; and receiving a probe response frame from the preferred AP. Preferably, the probe request frame includes a configuration change count field previously acquired from the preferred AP, and if a value of the configuration change count field included in the probe request frame is different from a present configuration change count value of the preferred AP, the probe response frame may include one or more elements of system information which should be updated by the STA.

Abstract translation: 本发明涉及一种在无线LAN系统中更新系统信息的方法和装置。 用于更新无线通信系统的站（STA）中的系统信息的方法可以包括由存储系统信息的STA和先前链接的优选接入点（AP）的配置改变计数值来发送用于 主动扫描到首选AP; 并从优选AP接收探测响应帧。 优选地，探测请求帧包括先前从优选AP获取的配置改变计数字段，并且如果探测请求帧中包括的配置改变计数字段的值与优选AP的当前配置改变计数值不同，则 探测响应帧可以包括应由STA更新的系统信息的一个或多个元素。

公开(公告)号：US09451644B2

公开(公告)日：2016-09-20

申请号：US14380671

申请日：2013-03-29

Applicant: LG ELECTRONICS INC.

Inventor： Kiseon Ryu ,  Jinsam Kwak ,  Giwon Park

IPC: H04W76/02 ,  H04W48/16 ,  H04W72/04 ,  H04W56/00 ,  H04W48/12 ,  H04W74/00 ,  H04W88/08

CPC classification number: H04W76/02 ,  H04W48/12 ,  H04W48/16 ,  H04W56/001 ,  H04W72/0446 ,  H04W74/006 ,  H04W76/10 ,  H04W88/08

Abstract: The present invention is directed to a wireless communication system. Specifically, the present invention is directed to a method of performing a procedure for link-setup and an apparatus therefore, wherein the method comprises: receiving a probe request frame including time information via a channel, wherein the time information indicates at least one of a minimum scan time for the channel and a maximum scan time for the channel; and performing a procedure for transmitting a probe response frame after receipt of the probe request frame, wherein if a beacon transmission time occurs within a time given based on the time information, transmission of the probe response frame is omitted.

Abstract translation: 本发明涉及无线通信系统。 具体地说，本发明涉及一种执行链路建立的过程的方法及装置，其特征在于，所述方法包括：经由信道接收包括时间信息的探测请求帧，其中所述时间信息表示 通道的最小扫描时间和通道的最大扫描时间; 以及执行在接收到所述探测请求帧之后发送探测响应帧的过程，其中如果在基于所述时间信息给出的时间内发生信标发送时间，则省略所述探测响应帧的发送。

公开(公告)号：US09439136B2

公开(公告)日：2016-09-06

申请号：US14405749

申请日：2013-07-11

Applicant: LG Electronics Inc.

Inventor： Giwon Park ,  Jinsam Kwak ,  Kiseon Ryu

IPC: H04L5/14 ,  H04B7/00 ,  H04J3/16 ,  H04J3/24 ,  H04W48/16 ,  H04W8/00 ,  H04W52/02 ,  H04W72/04 ,  H04W88/00 ,  H04W48/00 ,  H04W80/10 ,  H04W80/12 ,  H04W84/12 ,  H04W88/06

CPC classification number: H04W48/16 ,  H04W8/005 ,  H04W48/00 ,  H04W52/0216 ,  H04W52/0229 ,  H04W72/0446 ,  H04W80/10 ,  H04W80/12 ,  H04W84/12 ,  H04W88/00 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: A method and an apparatus for scanning in a wireless LAN are disclosed. The method for scanning in a wireless LAN comprises the steps of: enabling a station (STA) to receive, from a first access point (AP) operated in a first channel, a detection frame comprising identifier information of a second AP operated in a second channel and beacon frame transmission time information of the second AP, and enabling the STA to scan a beacon frame of the second AP on the basis of the beacon frame transmission time information of the second AP. Thus, the present invention can rapidly perform a scanning operation.

Abstract translation: 公开了一种用于在无线LAN中进行扫描的方法和装置。 用于在无线LAN中扫描的方法包括以下步骤：使站（STA）能够从在第一信道中操作的第一接入点（AP）接收包括在第二信道中操作的第二AP的标识符信息的检测帧 信道和信标帧传输时间信息，并且使STA能够基于第二AP的信标帧发送时间信息来扫描第二AP的信标帧。 因此，本发明可以快速地执行扫描操作。