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    Method and device for performing channel access in wireless LAN
    351.
    发明授权
    Method and device for performing channel access in wireless LAN 有权
    用于在无线LAN中执行信道接入的方法和设备

    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。

    Method and device for updating system information in wireless LAN system
    353.
    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。

    Method by which stations operating in power save mode in wireless LAN systems transmit and receive frames, and apparatus for supporting same
    354.
    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 for requesting device-to-device communication in wireless access system and apparatus for same
    356.
    发明授权
    Method for requesting device-to-device communication in wireless access system and apparatus for same 有权
    用于在无线接入系统中请求设备到设备通信的方法及其装置

    公开(公告)号：US09462622B2

    公开(公告)日：2016-10-04

    申请号：US14358414

    申请日：2012-11-19

    Applicant: LG ELECTRONICS INC.

    Inventor： Jiwoong Jang ,  Hangyu Cho ,  Jinsoo Choi ,  Dongcheol Kim

    IPC: H04W76/02 ,  H04L5/00 ,  H04W72/04 ,  H04W92/18

    CPC classification number: H04W76/14 ,  H04L5/003 ,  H04L5/0091 ,  H04W72/0406 ,  H04W92/18

    Abstract: Disclosed are a method for requesting device-to-device communication in a wireless access system that supports device-to-device communication and an apparatus for the method. More particularly, the method comprises the steps of: receiving, from a first device, request information for requesting device-to-device communication with a second device; transmitting, to the second device, check information to inquire whether to accept device-to-device communication with the first device; receiving, from the second device, response information indicating that device-to-device communication is accepted; and, if the second device has accepted the device-to-device, transmitting resource allocation information for device-to-device communication to the first device and the second device.

    Abstract translation: 公开了一种在支持设备到设备通信的无线接入系统中请求设备到设备通信的方法和用于该方法的设备。 更具体地，该方法包括以下步骤：从第一设备接收用于请求与第二设备的设备到设备通信的请求信息; 向所述第二设备发送检查信息以询问是否接受与所述第一设备的设备到设备的通信; 从第二设备接收指示设备到设备通信被接受的响应信息; 以及如果所述第二设备已经接受所述设备到设备，则向所述第一设备和所述第二设备发送用于设备到设备通信的资源分配信息。

    Method for receiving downlink signal by station in wireless communication system
    357.
    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 TRANSMITTING AND RECEIVING TRAFFIC INDICATION MAPS IN WIRELESS COMMUNICATION SYSTEMS AND APPARATUS FOR SAME
    359.
    发明申请
    METHOD FOR TRANSMITTING AND RECEIVING TRAFFIC INDICATION MAPS IN WIRELESS COMMUNICATION SYSTEMS AND APPARATUS FOR SAME 有权
    在无线通信系统中传输和接收交通指示的方法及其设备

    公开(公告)号：US20150063232A1

    公开(公告)日：2015-03-05

    申请号：US14378596

    申请日：2013-02-18

    Applicant: LG Electronics Inc.

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

    IPC: H04W28/02

    CPC classification number: H04W28/0278 ,  H04W4/70 ,  H04W28/0263 ,  H04W72/1289

    Abstract: The present invention relates to a method for transmitting and receiving a traffic indication map in a wireless communication system, and to an apparatus for same. More particularly, the method includes a step of transmitting a traffic indication map (TIM) to a station (STA) through a beacon frame, wherein the TIM can include a bitmap field configured of one or more sub-block bitmaps for indicating whether buffered downlink data exists for an STA which is grouped to one or more sub-blocks, and a block control field indicating an encoding scheme of the bitmap field.

    Abstract translation: 本发明涉及一种在无线通信系统中发送和接收业务指示图的方法及其装置。 更具体地，该方法包括通过信标帧向站（STA）发送业务指示映射（TIM）的步骤，其中，所述TIM可以包括由一个或多个子块位图配置的位图字段，用于指示是否缓冲的下行链路 对于分组为一个或多个子块的STA存在数据，以及指示位图字段的编码方案的块控制字段。

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