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    METHOD FOR POWER SAVING IN WIRELESS LOCAL AREA NETWORK AND APPARATUS FOR THE SAME
    343.
    发明申请
    METHOD FOR POWER SAVING IN WIRELESS LOCAL AREA NETWORK AND APPARATUS FOR THE SAME 有权
    在无线局域网中节电的方法及其设备

    公开(公告)号：US20130010664A1

    公开(公告)日：2013-01-10

    申请号：US13395351

    申请日：2011-08-02

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

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

    IPC: H04W52/02

    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, performed by a wireless device, includes acquiring TXOP (transmission opportunity) from access point (AP), the TXOP indicating 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, receiving a power saving indicator from the AP, the power saving indicator indicating whether the AP allows to enter doze state during the TXOP, and entering 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。 由无线设备执行的该方法包括从接入点（AP）获取TXOP（传输机会），该TXOP指示当AP有权发送用于多用户多输入多个的至少一个数据块的时间间隔 输出（MU-MIMO）传输，从AP接收功率节省指示灯，指示AP是否允许在TXOP期间进入打盹状态的功率节省指示符，并且如果节电指示器进入TXOP结束，则进入打盹状态 表示进入打盹状态的津贴。

    PPDU RECEIVING METHOD AND APPARATUS BASED ON THE MIMO TECHNIQUE IN A WLAN SYSTEM
    344.
    发明申请
    PPDU RECEIVING METHOD AND APPARATUS BASED ON THE MIMO TECHNIQUE IN A WLAN SYSTEM 有权
    基于WLAN系统中的MIMO技术的PPDU接收方法和装置

    公开(公告)号：US20120327915A1

    公开(公告)日：2012-12-27

    申请号：US13582036

    申请日：2011-03-02

    Applicant: Byeong Woo Kang ,  Yu Jin Noh ,  Dae Won Lee ,  Yong Ho Seok

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

    IPC: H04W72/04

    CPC classification number: H04L5/003 ,  H04B7/0452 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0053 ,  H04W72/0406

    Abstract: Provided is a method of receiving a physical layer convergence procedure (PLCP) protocol data unit (PPDU) by an access point (AP) in a wireless local area (LAN) system. The method includes: allocating a first transmission channel bandwidth to a first station (STA) which is multiple input multiple output (MIMO)-paired with the AP; allocating a second transmission channel bandwidth to a second STA which is MIMO-paired with the AP; transmitting to the first STA and the second STA a sync trigger for determining a time point at which the first STA transmits a first PPDU and a time point at which the second STA transmits a second PPDU; and receiving simultaneously the first PPDU and the second PPDU from the first STA and the second STA.

    Abstract translation: 提供了一种通过无线局域网（LAN）系统中的接入点（AP）接收物理层汇聚过程（PLCP）协议数据单元（PPDU）的方法。 该方法包括：将第一传输信道带宽分配给与AP一起主导的多输入多输出（MIMO）的第一站（STA）; 向与所述AP配对的第二STA分配第二传输信道带宽; 向所述第一STA和所述第二STA发送用于确定所述第一STA发送第一PPDU的时间点和所述第二STA发送第二PPDU的时间点的同步触发; 以及从第一STA和第二STA同时接收第一PPDU和第二PPDU。

    METHOD FOR TRANSMITTING SOUNDING SIGNAL IN WIRELESS COMMUNICATION SYSTEM
    345.
    发明申请
    METHOD FOR TRANSMITTING SOUNDING SIGNAL IN WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统中发送信号的方法

    公开(公告)号：US20120327914A1

    公开(公告)日：2012-12-27

    申请号：US13580097

    申请日：2010-11-29

    Applicant: Byeong Woo Kang ,  Dae Won Lee ,  Yu Jin Noh ,  Bong Hoe Kim ,  Yong Ho Seok

    Inventor： Byeong Woo Kang ,  Dae Won Lee ,  Yu Jin Noh ,  Bong Hoe Kim ,  Yong Ho Seok

    IPC: H04W72/04

    CPC classification number: H04W56/00 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/16 ,  H04W8/005 ,  H04W8/186 ,  H04W48/16 ,  H04W84/12

    Abstract: Disclosed is a method for allowing a station to transmit a sounding signal in a multiple-antenna wireless communication system, the method including receiving a group defining information about a group to which the station belongs from an access point (AP); determining a transmission time taken in transmitting a sounding signal by the respective stations, which belong to the group, on the basis of the group defining information; and transmitting a sounding signal to the AP in accordance with the transmission time and preset transmission order when receiving a sounding request signal from the AP.

    Abstract translation: 公开了一种允许站在多天线无线通信系统中发送探测信号的方法，所述方法包括从接入点（AP）接收定义关于所述站所属的组的信息的组; 基于组定义信息，确定由属于该组的各个站发送探测信号所用的传输时间; 并且当从AP接收到探测请求信号时，根据传输时间和预设的传输顺序，向AP发送探测信号。

    APPARATUS FOR PERFORMING COMP COMMUNICATION USING A PRECODED SOUNDING REFERENCE SIGNAL, AND METHOD FOR SAME
    348.
    发明申请
    APPARATUS FOR PERFORMING COMP COMMUNICATION USING A PRECODED SOUNDING REFERENCE SIGNAL, AND METHOD FOR SAME 有权
    用于执行预编码的参考信号的COMP通信的装置及其方法

    公开(公告)号：US20120275411A1

    公开(公告)日：2012-11-01

    申请号：US13518216

    申请日：2010-12-22

    Applicant: Hyung Tae Kim ,  Han Byul Seo ,  Dae Won Lee

    Inventor： Hyung Tae Kim ,  Han Byul Seo ,  Dae Won Lee

    IPC: H04W72/04

    CPC classification number: H04L25/03343 ,  H04B7/024 ,  H04L5/0032

    Abstract: An apparatus for performing coordinated multiple point (CoMP) communication using a precoded sounding reference signal, and a method for same are discussed. The method according to an embodiment of the present invention includes: a base station receiving, from a terminal in a neighboring cell, a sounding reference signal (SRS) precoded by a first matrix; acquiring an effective neighboring channel matrix using a hermitian matrix of the first matrix from the received SRS, and a downstream link channel matrix between the terminal and base station; and determining a precoding matrix to be transmitted to one or more terminals served by the base station on the basis of the effective neighboring channel matrix. Here, the effective neighboring channel matrix indicates a direction toward which a receiving beam should be directed such that the terminal can receive data from a serving base station thereof.

    Abstract translation: 使用预编码的探测参考信号进行协调多点（CoMP）通信的装置及其方法进行了讨论。 根据本发明实施例的方法包括：基站从相邻小区中的终端接收由第一矩阵预编码的探测参考信号（SRS）; 使用来自接收到的SRS的第一矩阵的隐性矩阵以及终端和基站之间的下游链路信道矩阵来获取有效的相邻信道矩阵; 以及基于有效的相邻信道矩阵来确定要发送到由基站服务的一个或多个终端的预编码矩阵。 这里，有效的相邻信道矩阵表示接收波束应该被引导的方向，使得终端可以从其服务基站接收数据。

    INTERFERENCE AVOIDANCE METHOD AND APPARATUS FOR SUPPORTING SAME IN A WIRELESS LAN SYSTEM
    349.
    发明申请
    INTERFERENCE AVOIDANCE METHOD AND APPARATUS FOR SUPPORTING SAME IN A WIRELESS LAN SYSTEM 有权
    用于在无线LAN系统中支持相同的干扰避免方法和装置

    公开(公告)号：US20120275332A1

    公开(公告)日：2012-11-01

    申请号：US13517951

    申请日：2010-11-04

    Applicant: Yong Ho Seok ,  Yu Jin Noh ,  Bong Hoe Kim ,  Dae Won Lee

    Inventor： Yong Ho Seok ,  Yu Jin Noh ,  Bong Hoe Kim ,  Dae Won Lee

    IPC: H04B15/00 ,  H04W24/02 ,  H04W84/12

    CPC classification number: H04B7/0452 ,  H04L5/0023 ,  H04L5/0091 ,  H04L25/0204 ,  H04L25/0224 ,  H04W16/28

    Abstract: An interference avoidance method performed by an access point (AP) in a wireless local area network (WLAN) system is provided. The method includes: transmitting a training request (TRQ) message for requesting transmission of a sounding frame to a first station which is a target of multi-user multiple input multiple output (MU-MIMO) transmission and a second station which receives data through a direct link during the MU-MIMO transmission; receiving first and second sounding frames respectively transmitted by the first and second stations in response to the TRQ message; estimating a channel by using the first sound frame to determine a beam-forming vector to be used for the MU-MIMO transmission; and performing the MU-MIMO transmission for MU-MIMO transmission target stations including the first station, wherein the beam-forming vector is determined such that the MU-MIMO transmission has a minimum effect on the second station by considering channel information between the AP and the second station and acquired on the basis of the second sounding frame received from the second station.

    Abstract translation: 提供了一种由无线局域网（WLAN）系统中的接入点（AP）执行的干扰避免方法。 该方法包括：向作为多用户多输入多输出（MU-MIMO）传输的目标的第一站发送用于请求发送探测帧的训练请求（TRQ）消息，以及通过一个接收数据的第二站 在MU-MIMO传输期间的直接链路; 接收响应于所述TRQ消息由所述第一和第二站分别发送的第一和第二探测帧; 通过使用第一声音帧来估计要用于MU-MIMO传输的波束形成向量的信道; 以及对包括第一站的MU-MIMO传输目标站执行MU-MIMO传输，其中确定波束形成向量，使得MU-MIMO传输对第二站具有最小影响，考虑AP与AP之间的信道信息 第二站，并且基于从第二站接收的第二探测帧获取。

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