公开(公告)号：US08953510B2

公开(公告)日：2015-02-10

申请号：US14104969

申请日：2013-12-12

Applicant: LG Electronics Inc.

Inventor： Byeong Woo Kang ,  Dae Won Lee ,  Yong Ho Seok

IPC: H04W52/02 ,  H04B7/04 ,  H04W74/08

CPC classification number: H04W52/0235 ,  H04B7/0452 ,  H04L69/323 ,  H04W52/02 ,  H04W52/0212 ,  H04W52/0219 ,  H04W52/0222 ,  H04W74/0808 ,  H04W84/12 ,  Y02D70/142 ,  Y02D70/444

Abstract: A method of power saving in a wireless local area network is provided. The method is performed by a wireless device that acquires TXOP (transmission opportunity) from an access point (AP), and the TXOP indicates an interval of time when the AP has the right to transmit at least one data block for multi user-multiple input multiple output (MU-MIMO) transmission. The method includes receiving a power saving indicator from the AP, the power saving indicator indicating whether the AP is allowed to enter doze state during the TXOP; and entering the wireless device into the doze state until the end of the TXOP if the power saving indicator indicates an allowance of entering the doze state.

Abstract translation: 提供了一种在无线局域网中省电的方法。 该方法由从接入点（AP）获取TXOP（传输机会）的无线设备执行，并且TXOP指示当AP有权发送用于多用户多输入的至少一个数据块的时间间隔 多输出（MU-MIMO）传输。 该方法包括从AP接收功率节省指示符，所述省电指示器指示在TXOP期间AP是否被允许进入打盹状态; 并且如果省电指示器指示进入打盹状态的允许，则将无线设备进入瞌睡状态直到TXOP结束。

公开(公告)号：US08948152B2

公开(公告)日：2015-02-03

申请号：US14109646

申请日：2013-12-17

Applicant: LG Electronics Inc.

Inventor： Yong Ho Seok

IPC: H04B7/06 ,  H04W84/12 ,  H04B7/04 ,  H04L1/00 ,  H04W24/08 ,  H04W8/24 ,  H04W84/10 ,  H04W88/08 ,  H04L25/02

CPC classification number: H04L5/005 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/063 ,  H04J11/003 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0026 ,  H04L5/0023 ,  H04L5/0053 ,  H04L25/0204 ,  H04L25/0226 ,  H04L2001/0093 ,  H04W8/24 ,  H04W24/08 ,  H04W72/0406 ,  H04W72/0413 ,  H04W84/105 ,  H04W84/12 ,  H04W88/08

Abstract: A method and apparatus for communicating in a wireless local area network are discussed. According to an embodiment, the method includes a method of communicating in a wireless local area network, the method comprising: receiving, by a mobile station, a first physical layer protocol data unit (PPDU) transmitted by an access point (AP) via multi-user multiple input/multiple output (MU MIMO) transmission to a plurality of mobile stations, the first PPDU including a first feedback sequence identifier that includes a specific value identifying the plurality of stations, determining, by the mobile station, that the mobile station belongs to one of the plurality of stations indicated by the first feedback sequence identifier; if it is determined that the mobile station belongs to one of the plurality of stations, estimating a MIMO channel based on the first PPDU; and transmitting, by the mobile station, a second PPDU to the AP.

Abstract translation: 讨论了在无线局域网中进行通信的方法和装置。 根据实施例，所述方法包括在无线局域网中通信的方法，所述方法包括：由移动台接收经由多个接入点（AP）发送的第一物理层协议数据单元（PPDU） - 用户多输入/多输出（MU MIMO）传输到所述多个移动站，所述第一PPDU包括包括标识所述多个站的特定值的第一反馈序列标识符，由所述移动站确定所述移动站 属于由第一反馈序列标识符指示的多个站之一; 如果确定移动站属于多个站中的一个站，则基于第一PPDU估计MIMO信道; 以及由所述移动台向所述AP发送第二PPDU。

公开(公告)号：US20140348047A1

公开(公告)日：2014-11-27

申请号：US14361179

申请日：2012-12-11

Applicant: LG ELECTRONICS INC.

Inventor： Jong Hyun Park ,  Hyang Sun You ,  Yong Ho Seok

IPC: H04W52/02 ,  H04W72/04

CPC classification number: H04W52/0206 ,  H04W52/0216 ,  H04W72/0406 ,  H04W72/0446 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/21

Abstract: Disclosed are a method and a device for transmitting and receiving a frame using a short guard interval. A method for receiving a beacon frame comprises the steps of: receiving a first beacon frame which contains guard interval type information; determining a second beacon frame which is to be received after the first beacon frame on the basis of the guard interval type information; and receiving the second beacon frame, wherein the guard interval type information may be information which is related to a guard interval used when said second beacon frame is transmitted. Thus, since a station can determine whether to receive a frame using a certain guard interval, the station can receive a power-saving effect.

Abstract translation: 公开了一种使用短保护间隔发送和接收帧的方法和装置。 一种用于接收信标帧的方法包括以下步骤：接收包含保护间隔类型信息的第一信标帧; 基于所述保护间隔类型信息确定将在所述第一信标帧之后接收的第二信标帧; 以及接收所述第二信标帧，其中所述保护间隔类型信息可以是与发送所述第二信标帧时使用的保护间隔相关的信息。 因此，由于站可以确定是否使用一定的保护间隔来接收帧，所以该站可以接收节能效果。

公开(公告)号：US08891659B2

公开(公告)日：2014-11-18

申请号：US13970384

申请日：2013-08-19

Applicant: LG Electronics Inc.

Inventor： Dae Won Lee ,  Yong Ho Seok

IPC: H04B7/02 ,  H04L27/00 ,  H04L1/02 ,  H04B7/04 ,  H04W72/12 ,  H04W84/12 ,  H04W72/04 ,  H04W4/08

CPC classification number: H04W4/08 ,  H04B7/0452 ,  H04W72/042 ,  H04W72/046 ,  H04W72/1278 ,  H04W84/12

Abstract: A method of transmitting a spatial stream for multi user (MU)-multiple input multiple output (MIMO) in a wireless local area network system, performed by a transmitter is provided. The method includes transmitting, to a receiver, a management frame including group information to assign or change a position of a plurality of spatial streams corresponding to each of a plurality of groups, and transmitting, to the receiver, a frame including at least one spatial stream, where the group information includes a plurality of group indicators and a plurality of spatial stream (SS) indicators, each of the plurality of group indicators indicating whether or not the receiver is a member of each of the plurality of groups, each of the plurality of SS indicators indicating a position of the plurality of spatial streams corresponding to each of the plurality of groups.

Abstract translation: 提供了一种在无线局域网系统中由发射机发送用于多用户（MU）多输入多输出（MIMO）的空间流的方法。 该方法包括向接收机发送包括组信息的管理帧，以分配或改变与多个组中的每一个相对应的多个空间流的位置，以及向接收机发送包括至少一个空间 流，其中所述组信息包括多个组指示符和多个空间流（SS）指示符，所述多个组指示符中的每一个指示所述接收者是否是所述多个组中的每一个的成员， 多个SS指示符指示与多个组中的每个组对应的多个空间流的位置。

公开(公告)号：US20140321349A1

公开(公告)日：2014-10-30

申请号：US14356068

申请日：2012-11-19

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho Seok ,  Hyang Sun You ,  Jong Hyun Park

IPC: H04W52/02

CPC classification number: H04W52/0229 ,  H04L47/266 ,  H04W52/0216 ,  H04W74/08 ,  H04W76/28 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/22

Abstract: The present invention relates to methods of transmitting and receiving a frame, which are performed by a station operating in a power save mode in a wireless LAN system. The method includes: transmitting a poll frame requesting the transmission of a buffered frame to an access point AP, wherein the poll frame includes a sustain time field that indicates a service section; and receiving at least one buffered frame from the AP within the sustain time in response to the poll frame. A method is provided for transmitting and receiving a frame executed by a station (STA) operating in a power sub mode in a wireless LAN system. The method includes transmitting a first poll frame requesting the transmission of a buffered frame to an access point AP, receiving an acknowledgement ACK frame in response to the first poll frame, and receiving at least one buffered frame from the AP.

Abstract translation: 本发明涉及一种发送和接收帧的方法，该方法由无线LAN系统中以省电模式操作的站执行。 该方法包括：向接入点AP发送请求传输缓冲帧的轮询帧，其中轮询帧包括指示服务段的维持时间字段; 以及响应于所述轮询帧在所述维持时间内从所述AP接收至少一个缓冲帧。 提供一种用于发送和接收在无线LAN系统中以电力子模式操作的站（STA）执行的帧的方法。 该方法包括：向接入点AP发送请求传输缓冲帧的第一轮询帧，响应于第一轮询帧接收确认ACK帧，以及从AP接收至少一个经缓冲的帧。

公开(公告)号：US20140286356A1

公开(公告)日：2014-09-25

申请号：US14350781

申请日：2012-10-31

Applicant: LG ELECTRONICS INC.

Inventor： Hyang Sun You ,  Yong Ho Seok ,  Jong Hyun Park

IPC: H04L29/06

CPC classification number: H04L69/22 ,  H04L1/0025 ,  H04L1/0681 ,  H04L1/08 ,  H04L27/2666 ,  H04W4/70 ,  H04W80/02

Abstract: Disclosed are method and device for indicating a PLCP header transmission mode. A method for generating a physical layer convergence protocol (PLCP) of a data frame can comprise the following steps: demodulating PLCP header mode information based on a scrambling sequence of the received frame or information elements included in the received frame; and generating a data frame including the PLCP header generated based on the PCLP header mode information. The PLCP header mode information comprises at least one indication from a space time block coding mode indication, a guard interval mode indication, and a repetition mode indication. The invention is capable of improving data transmission efficiency by adaptively determining a transmission mode of a PCLP header to a channel situation.

Abstract translation: 公开了用于指示PLCP报头传输模式的方法和装置。 一种用于生成数据帧的物理层汇聚协议（PLCP）的方法可以包括以下步骤：基于所接收的帧的加扰序列或包括在接收帧中的信息元素来解调PLCP头模式信息; 以及生成包括基于PCLP头模式信息生成的PLCP头的数据帧。 PLCP头模式信息包括来自空间时间块编码模式指示，保护间隔模式指示和重复模式指示的至少一个指示。 本发明能够通过将PCLP头的传输模式自适应地确定到信道情况来提高数据传输效率。

公开(公告)号：US20140211680A1

公开(公告)日：2014-07-31

申请号：US14342866

申请日：2012-11-02

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho Seok ,  Hyang Sun You ,  Ji Hyun Lee

IPC: H04W52/02

CPC classification number: H04W52/0216 ,  H04W52/0206 ,  H04W84/12 ,  Y02D70/142 ,  Y02D70/21 ,  Y02D70/22

Abstract: A method for communication performed by a station in a wireless local area network system is provided. The method includes receiving a first change sequence from an access point, transmitting a probe request frame to an access point in order to request updated system information, the probe request frame including the first change sequence, and receiving a probe response frame from the access point in response to the probe request frame. The probe response frame includes a second change sequence. The first change sequence and the second change sequence indicate a change of system information within a basic service set (BSS).

Abstract translation: 提供了一种由无线局域网系统中的台站进行通信的方法。 该方法包括从接入点接收第一改变序列，向接入点发送探测请求帧以便请求更新的系统信息，探测请求帧包括第一改变序列，以及从接入点接收探测响应帧 响应于探测请求帧。 探测响应帧包括第二改变序列。 第一改变序列和第二改变序列指示基本服务集（BSS）内的系统信息的改变。

公开(公告)号：US20130142189A1

公开(公告)日：2013-06-06

申请号：US13753445

申请日：2013-01-29

Applicant: LG Electronics Inc.

Inventor： Yong Ho Seok

IPC: H04W76/02

CPC classification number: H04W76/023 ,  H04W28/16 ,  H04W28/24 ,  H04W76/10 ,  H04W76/11 ,  H04W76/12 ,  H04W76/14 ,  H04W76/15

Abstract: Provided are a Tunneled Direct Link Setup (TDLS) establishment procedure for a TDLS initiator and a station supporting the establishment procedure. In the establishment procedure, a requesting Non-AP QSTA transmits a TDLS setup request frame via an access point (AP) to an intended peer Non-AP QSTA. And, the requesting Non-AP QSTA receives a TDLS setup response frame via the AP from the intended peer station in response to the TDLS setup request frame. And, the requesting Non-AP QSTA transmits a TDLS setup confirm frame via the AP to the intended peer station in response to the TDLS setup response frame.

Abstract translation: 提供了用于TDLS发起者和支持建立过程的站的隧道直接链路建立（TDLS）建立过程。 在建立过程中，请求的非AP QSTA经由接入点（AP）将TDLS建立请求帧发送到预定的对等体非AP QSTA。 并且，请求的非AP QSTA响应于TDLS建立请求帧，经由AP从目标对等站接收TDLS建立响应帧。 并且，请求的非AP QSTA响应于TDLS建立响应帧，经由AP向目标对等站发送TDLS建立确认帧。

公开(公告)号：US10257773B2

公开(公告)日：2019-04-09

申请号：US15491506

申请日：2017-04-19

Applicant: LG ELECTRONICS INC.

Inventor： Dae Won Lee ,  Yong Ho Seok

IPC: H04W4/00 ,  H04W48/12 ,  H04W48/08 ,  H04B7/0452 ,  H04W72/04 ,  H04W84/12 ,  H04W48/20

Abstract: A method for reporting load information, performed by an access point (AP), in a wireless local area network system, the method includes determining first utilization information for a first channel having a bandwidth of 40 MHz; and transmitting basic service set (BSS) load information, the BSS load information including a multi user (MU) multiple input multiple output (MIMO) capable station count field and the first utilization information, wherein the MU-MIMO capable station count field indicates a total number of stations with MU reception capability currently associated with a BSS managed by the AP, and wherein the first utilization information includes information about a time during which the first channel is busy.

公开(公告)号：US09948370B2

公开(公告)日：2018-04-17

申请号：US15428757

申请日：2017-02-09

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho Seok

IPC: H04W4/00 ,  H04B7/0452 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04B7/0452 ,  H04L1/0061 ,  H04L5/0046 ,  H04L27/2602 ,  H04L69/22 ,  H04W28/18 ,  H04W72/0446 ,  H04W84/12 ,  H04W88/08

Abstract: A method of multi user multiple input multiple output (MU-MIMO) communication in a wireless local area network (WLAN) system, and a transmitting device therefore, are discussed. The method according to an embodiment includes generating an Aggregate-Medium Access Control Protocol Data Unit (A-MPDU) including an A-MPDU subframe which includes a Medium Access Control Protocol Data Unit (MPDU) delimiter field and an MPDU; and generating a Physical Layer Protocol Data Unit (PPDU) including the A-MPDU by using a guard interval. The guard interval is selected by the transmitting device among a short guard interval and a long guard interval. The guard interval used for the PPDU is selected to be the short guard interval when the PPDU is generated for a plurality of receiving devices, all of which support the short guard interval. The method according to the embodiment further includes transmitting the PPDU to the plurality of receiving devices.