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    METHOD FOR PERFORMING CHANNEL SOUNDING IN WIRELESS LAN SYSTEM AND APPARATUS FOR SUPPORTING SAME
    31.
    发明申请
    METHOD FOR PERFORMING CHANNEL SOUNDING IN WIRELESS LAN SYSTEM AND APPARATUS FOR SUPPORTING SAME 有权
    在无线局域网系统中执行通道声音的方法及其支持的装置

    公开(公告)号：US20140348097A1

    公开(公告)日：2014-11-27

    申请号：US14360506

    申请日：2012-11-22

    Applicant: LG Electronics Inc.

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

    IPC: H04B7/06 ,  H04L27/26

    CPC classification number: H04B7/0626 ,  H04L1/0009 ,  H04L1/08 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0226 ,  H04L27/2613 ,  H04L27/2646 ,  H04W84/12

    Abstract: The present invention relates to a method of performing channel sounding in a wireless LAN system. The method includes transmitting a Null Data Packet Announcement (NDPA) frame for providing notice of an NDP to be transmitted, and transmitting the NDP and receiving a feedback frame from a station (STA). The feedback frame includes channel state information created on the basis of the NDP. The NDP includes a signal field and at least one long training field (LTF) for a multiple input multiple output channel. The signal field includes a repetitive instruction subfield. The repetitive instruction subfield provides instruction on whether orthogonal frequency division multiplexing (OFDM) symbol repetition is applied to the at least one LTF.

    Abstract translation: 本发明涉及一种在无线LAN系统中执行信道探测的方法。 该方法包括发送用于提供要发送的NDP的通知的空数据分组通知（NDPA）帧，以及发送NDP并从站（STA）接收反馈帧。 反馈帧包括基于NDP创建的信道状态信息。 NDP包括用于多输入多输出通道的信号场和至少一个长训练场（LTF）。 信号字段包括重复指令子字段。 重复指令子域提供关于是否将正交频分复用（OFDM）符号重复应用于至少一个LTF的指令。

    METHOD AND APPARATUS FOR TRANSMITTING TRAINING FIELD
    32.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING TRAINING FIELD 有权
    用于发送训练的方法和装置

    公开(公告)号：US20140328430A1

    公开(公告)日：2014-11-06

    申请号：US14359731

    申请日：2012-11-28

    Applicant: LG ELECTRONICS INC.

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

    IPC: H04L27/26 ,  H04L1/00

    CPC classification number: H04L27/2607 ,  H04L1/0042 ,  H04L1/0075 ,  H04L5/0048 ,  H04L25/0224 ,  H04L27/2613

    Abstract: Disclosed are a method and apparatus for transmitting a training field. The method for transmitting a training field in a wireless LAN system comprises the steps of: transmitting additional long training field (LTF) indication information; and transmitting a frame including the additional LTF and partitioned data fields. The additional LTF comprises a field for demodulating the partitioned data fields included in the frame, the additional LTF indication information includes information on the location of the additional LTF included in the frame, and the partitioned data field includes at least one sub-field. Accordingly, the present invention can enhance channel estimation performance.

    Abstract translation: 公开了一种用于发送训练场的方法和装置。 用于在无线LAN系统中发送训练场的方法包括以下步骤：发送附加的长训练场（LTF）指示信息; 以及发送包括附加LTF和分区数据字段的帧。 附加LTF包括用于解调包括在帧中的分割数据字段的字段，附加LTF指示信息包括关于包括在帧中的附加LTF的位置的信息，并且分割数据字段包括至少一个子字段。 因此，本发明可以增强信道估计性能。

    METHOD AND DEVICE FOR SEARCHING FOR SERVICE FOR TERMINAL USING GAS PROTOCOL
    33.
    发明申请
    METHOD AND DEVICE FOR SEARCHING FOR SERVICE FOR TERMINAL USING GAS PROTOCOL 有权
    使用气体协议寻找终端服务的方法和设备

    公开(公告)号：US20140313936A1

    公开(公告)日：2014-10-23

    申请号：US14354860

    申请日：2012-11-19

    Applicant: LG ELECTRONICS INC.

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

    IPC: H04L1/16 ,  H04W48/14

    CPC classification number: H04L1/1685 ,  H04L67/16 ,  H04W48/14 ,  H04W84/12

    Abstract: Method and device for discovering a service are provided. A responding device receives a service request frame including a first service identifier indicating a service queried by the requesting device. The responding device transmits a service response frame to indicate that the queried service is currently not available and a service announce frame follows on. The responding device determines whether the queried service is accepted or not during a pre-defined time after transmitting the service response frame.

    Abstract translation: 提供了一种用于发现服务的方法和设备。 响应设备接收包括指示请求设备查询的服务的第一服务标识符的服务请求帧。 响应设备发送服务响应帧以指示查询服务当前不可用并且服务通告帧跟随。 在发送服务响应帧之后的预定义时间期间，响应设备确定查询服务是否被接受。

    METHOD AND APPARATUS FOR INDICATING A FRAME TYPE USING A PREAMBLE
    34.
    发明申请
    METHOD AND APPARATUS FOR INDICATING A FRAME TYPE USING A PREAMBLE 有权
    用于表示使用前置框架的方法和装置

    公开(公告)号：US20140247838A1

    公开(公告)日：2014-09-04

    申请号：US14353015

    申请日：2012-10-18

    Applicant: LG ELECTRONICS INC.

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

    IPC: H04L29/06 ,  H04L29/08

    CPC classification number: H04L69/22 ,  H04L1/0003 ,  H04L1/0028 ,  H04L1/0033 ,  H04L1/0039 ,  H04L1/16 ,  H04L1/1621 ,  H04L5/0055 ,  H04L5/0091 ,  H04L27/2602 ,  H04L27/2613 ,  H04L69/321 ,  H04W48/20 ,  H04W74/00 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/21

    Abstract: Disclosed are a method and an apparatus for indicating a frame type using a physical layer convergence protocol header. A method for determining a frame type using a PLCP header may comprise: a step of demodulating a frame type contained in an SIG of the PLCP header so as to acquire information indicating a physical service data unit (PSDU) of a frame; and a step of acquiring frame information required for demodulating the frame contained in the SIG dependently on the information indicating PSDU. Thus, unnecessary information may not be additionally demodulated to thereby improve demodulation efficiency and reduce unnecessary power consumption.

    Abstract translation: 公开了一种使用物理层汇聚协议报头指示帧类型的方法和装置。 一种使用PLCP头部确定帧类型的方法可以包括：解调包含在PLCP头部的SIG中的帧类型以获取指示帧的物理服务数据单元（PSDU）的信息的步骤; 以及根据指示PSDU的信息获取解调包含在SIG中的帧所需的帧信息的步骤。 因此，不需要附加地解调不必要的信息，从而提高解调效率并减少不必要的功耗。

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