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    Method and device for updating system information in wireless LAN system
    43.
    发明授权
    Method and device for updating system information in wireless LAN system 有权
    无线局域网系统更新系统信息的方法和装置

    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。

    Coexistent channel access method
    44.
    发明授权
    Coexistent channel access method 有权
    共存通道访问方式

    公开(公告)号：US09515717B2

    公开(公告)日：2016-12-06

    申请号：US14976655

    申请日：2015-12-21

    Applicant: LG Electronics Inc.

    Inventor： Yongho Seok

    IPC: H04B7/06 ,  H04W52/24 ,  H04W52/28 ,  H04W72/04 ,  H04L5/00 ,  H04W52/42 ,  H04W52/52 ,  H04B7/04 ,  H04W84/12

    CPC classification number: H04B7/0665 ,  H04B7/0413 ,  H04L5/0023 ,  H04L5/0053 ,  H04W52/248 ,  H04W52/281 ,  H04W52/42 ,  H04W52/52 ,  H04W72/0453 ,  H04W72/0473 ,  H04W84/12

    Abstract: A method is provided for transmitting a multiple input multiple output (MIMO) packet in a wireless local area network. A physical layer convergence procedure (PLCP) protocol data unit (PPDU) is generated including at least one training field, a very high throughput (VHT)-signal field and a plurality of data streams. The PPDU is transmitted to at least one receiver. The VHT-signal field includes first information, second information and third information. The first information indicates that the plurality of data streams in the PPDU are simultaneously received by the at least one receiver. The second information indicates which receiver is targeted for the plurality of data streams. The third information indicates a bandwidth used for a transmission of the plurality of data streams.

    Abstract translation: 提供一种用于在无线局域网中发送多输入多输出（MIMO）分组的方法。 产生物理层收敛过程（PLCP）协议数据单元（PPDU），其包括至少一个训练场，非常高吞吐量（VHT）信号字段和多个数据流。 PPDU被传送到至少一个接收器。 VHT信号字段包括第一信息，第二信息和第三信息。 第一信息指示PPDU中的多个数据流由至少一个接收机同时接收。 第二信息指示哪个接收机针对多个数据流。 第三信息指示用于多个数据流的传输的带宽。

    Method by which stations operating in power save mode in wireless LAN systems transmit and receive frames, and apparatus for supporting same
    45.
    发明授权
    Method by which stations operating in power save mode in wireless LAN systems transmit and receive frames, and apparatus for supporting same 有权
    在无线LAN系统中以节电模式工作的站发送和接收帧的方法，以及用于支持它的装置

    公开(公告)号：US09491700B2

    公开(公告)日：2016-11-08

    申请号：US14376025

    申请日：2013-01-30

    Applicant: LG ELECTRONICS, INC.

    Inventor： Jinsoo Choi ,  Seunghee Han ,  Jinsam Kwak ,  Yongho Seok ,  Jeongki Kim

    IPC: H04W52/02 ,  H04W84/12

    CPC classification number: H04W52/0225 ,  H04W84/12 ,  Y02D70/142 ,  Y02D70/21 ,  Y02D70/22

    Abstract: The present invention relates to a method by which a station (STA) which operates in power save mode in a wireless LAN system transmits and receives frames. The method includes the steps of: obtaining a channel access authority on the basis of at least one slot time, wherein each slot time is the unit time when a channel is maintained in an idle state for a channel access by the STA; transmitting a power save (PS) poll frame requesting the transmission of a buffered frame to an access point (AP); and receiving a response frame from the AP in response to the PS poll frame. The length of each slot time is set to be longer than the transmission time of the PS poll frame.

    Abstract translation: 本发明涉及一种在无线LAN系统中以省电模式操作的站（STA）发送和接收帧的方法。 该方法包括以下步骤：基于至少一个时隙时间获得信道接入权限，其中每个时隙时间是当信道被维持在空闲状态以由STA进行信道接入时的单位时间; 发送请求传输缓冲帧到接入点（AP）的省电（PS）轮询帧; 以及响应于所述PS轮询帧从所述AP接收响应帧。 每个时隙时间的长度设置为长于PS轮询帧的传输时间。

    Method and device for transmitting and receiving available channel information based on directivity in wireless communication system
    47.
    发明授权
    Method and device for transmitting and receiving available channel information based on directivity in wireless communication system 有权
    基于无线通信系统中的方向性发送和接收可用信道信息的方法和装置

    公开(公告)号：US09468007B2

    公开(公告)日：2016-10-11

    申请号：US14363213

    申请日：2012-12-05

    Applicant: LG ELECTRONICS INC. ,  INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY

    Inventor： Eunsun Kim ,  Dae Sik Hong ,  Gosan Noh ,  Yongho Seok ,  Ji-Haeng Heo

    IPC: H04W4/00 ,  H04W24/00 ,  H04W72/04 ,  G01S5/14 ,  H04W48/04 ,  H04W64/00 ,  H04W48/16 ,  H04W48/14

    CPC classification number: H04W72/048 ,  H04W16/14 ,  H04W48/04 ,  H04W48/14 ,  H04W48/16 ,  H04W64/006

    Abstract: Disclosed are a method and device for transmitting and receiving available channel information based on directivity in a wireless communication system. A method for enabling a station (STA) to receive available channel information in a whitespace band according to one embodiment of the present invention comprises the steps of: determining a current position of the STA and a position at which the direction is changed on a moving path of the STA; determining K (K≧1) operating ranges based on the current position of the STA and the position at which the direction is changed; transmitting a channel availability query (CAQ) request frame for the K operating ranges to a database; and receiving available channel information on the K operating ranges through a CAQ response frame from the database.

    Abstract translation: 公开了一种用于基于无线通信系统中的方向性发送和接收可用信道信息的方法和装置。 根据本发明的一个实施例，一种使得站（STA）能够接收空白频带中的可用信道信息的方法包括以下步骤：确定STA的当前位置和在移动中方向改变的位置 STA的路径; 基于STA的当前位置和方向改变的位置确定K（K≥1）操作范围; 向K数据库发送K个操作范围的信道可用性查询（CAQ）请求帧; 并通过来自数据库的CAQ响应帧在K个操作范围上接收可用的频道信息。

    Method and apparatus for accessing channel in WLAN system
    48.
    发明授权
    Method and apparatus for accessing channel in WLAN system 有权
    WLAN系统中接入信道的方法和装置

    公开(公告)号：US09426764B2

    公开(公告)日：2016-08-23

    申请号：US14377445

    申请日：2013-02-12

    Applicant: LG Electronics Inc.

    Inventor： Yongho Seok

    IPC: H04W56/00 ,  H04W72/04 ,  H04L7/00 ,  H04W84/12 ,  H04W52/02

    CPC classification number: H04W56/0015 ,  H04L7/0008 ,  H04W4/70 ,  H04W52/0216 ,  H04W56/0085 ,  H04W72/044 ,  H04W72/0446 ,  H04W84/12 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/124 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/22

    Abstract: The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for accessing a channel in a WLAN system. A method for synchronizing channels from a station (STA) in the wireless communication system, according to one embodiment of the present invention, comprises the steps of: receiving from an access point (AP) setting information with respect to an least one slot allowing channel access by the STA; receiving a synchronization frame from the AP from a slot boundary of the at least one slot; and synchronizing the channels on the basis of the synchronization frame, wherein the synchronization frame may be a null data packet (NDP) frame.

    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，更具体地说，本发明涉及一种在WLAN系统中访问信道的方法和装置。 根据本发明的一个实施例，一种用于在来自无线通信系统中的站（STA）的同步信道的方法包括以下步骤：从接入点（AP）接收关于至少一个允许信道的时隙的信息 由STA访问; 从所述AP接收来自所述至少一个时隙的时隙边界的同步帧; 以及基于所述同步帧同步所述信道，其中所述同步帧可以是空数据分组（NDP）帧。

    Method for receiving downlink signal by station in wireless communication system
    49.
    发明授权
    Method for receiving downlink signal by station in wireless communication system 有权
    用于在无线通信系统中按站接收下行链路信号的方法

    公开(公告)号：US09319902B2

    公开(公告)日：2016-04-19

    申请号：US14420611

    申请日：2013-08-09

    Applicant: LG ELECTRONICS INC.

    Inventor： Jeongki Kim ,  Yongho Seok ,  Jinsam Kwak ,  Jinsoo Choi

    IPC: H04W4/00 ,  H04W24/02 ,  H04W76/02 ,  H04W84/12 ,  H04W88/08

    CPC classification number: H04W24/02 ,  H04W76/19 ,  H04W84/12 ,  H04W88/08

    Abstract: The invention relates to a method for receiving a downlink signal from an access point (AP) by a station (STA) in a wireless communication system, comprising the steps of: transmitting an uplink frame; and receiving a response frame as a response to the uplink frame. A terminal performs a re-association with the AP when it is recognized, via the response frame, that the AP has been restarted.

    Abstract translation: 本发明涉及一种在无线通信系统中由站（STA）从接入点（AP）接收下行链路信号的方法，包括以下步骤：发送上行链路帧; 以及接收响应帧作为对所述上行链路帧的响应。 当通过响应帧识别出AP被重新启动时，终端与AP进行重新关联。

    METHOD FOR SENSING CHANNEL DYNAMICALLY IN WIRELESS LAN SYSTEM AND APPARATUS THEREFOR
    50.
    发明申请
    METHOD FOR SENSING CHANNEL DYNAMICALLY IN WIRELESS LAN SYSTEM AND APPARATUS THEREFOR 审中-公开
    在无线局域网系统中动态地传输通道的方法及其设备

    公开(公告)号：US20160066349A1

    公开(公告)日：2016-03-03

    申请号：US14888139

    申请日：2013-11-08

    Applicant: LG ELECTRONICS INC.

    Inventor： Yongho Seok

    IPC: H04W74/08 ,  H04W24/02

    CPC classification number: H04W74/0833 ,  H04W24/02 ,  H04W74/0808 ,  H04W84/12

    Abstract: The present invention relates to a wireless communications system, and more particularly to a method for sensing a channel dynamically in a wireless LAN system and an apparatus therefor. A method for performing a back-off in a wireless LAN system according to an embodiment of the present invention includes the steps of performing CCA by applying clear channel assessment conditions in order to transmit a data unit with a different channel width, and performing a back-off based thereon.

    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，更具体地涉及一种用于在无线LAN系统中动态地感测信道的方法及其装置。 根据本发明实施例的用于在无线LAN系统中执行退避的方法包括以下步骤：通过应用清除信道评估条件来执行CCA，以便发送具有不同信道宽度的数据单元，并执行后向 基于此。

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