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    Method for channel sounding in wireless local area network and apparatus for the same
    3.
    发明授权
    Method for channel sounding in wireless local area network and apparatus for the same 有权
    无线局域网中的信道探测方法及其设备

    公开(公告)号：US09270438B2

    公开(公告)日：2016-02-23

    申请号：US14570958

    申请日：2014-12-15

    Applicant: LG ELECTRONICS INC.

    Inventor： Dae Won Lee ,  Ill Soo Sohn ,  Yong Ho Seok

    IPC: H04L5/00 ,  H04B7/06 ,  H04W84/12 ,  H04B7/04

    CPC classification number: H04L5/0053 ,  H04B7/0452 ,  H04B7/0636 ,  H04L1/1812 ,  H04L5/0023 ,  H04W16/28 ,  H04W84/12

    Abstract: A method, performed by a transceiver, is described. The transceiver receives a null data packet announcement (NDPA) frame to initiate channel sounding and a null data packet (NDP), the NDP following the NDPA frame. A first report field including beamforming information and a second report field including signal to noise ratio (SNR) information is configured. First feedback data including the first report field and a second report field is split into a plurality of segments. The plurality of segments is transmitted in a single aggregated medium access control protocol data unit (A-MPDU) including MPDUs. A retransmission request including a segment retransmission bitmap field indicating at least one segment of the plurality of segments for retransmission is received. In response to the retransmission request, second feedback data including the at least one segment indicated by the segment retransmission bitmap field is transmitted.

    Abstract translation: 描述了由收发器执行的方法。 收发器接收零数据包通知（NDPA）帧以发起信道声音和NDPA帧之后的NDP空数据包（NDP）。 配置包括波束形成信息的第一报告字段和包括信噪比（SNR）信息的第二报告字段。 包括第一报告字段和第二报告字段的第一反馈数据被分割成多个段。 多个段在包含MPDU的单个聚合介质访问控制协议数据单元（A-MPDU）中传输。 接收包括指示用于重传的多个片段中的至少一个片段的片段重传位图字段的重传请求。 响应于重传请求，发送包括由片段重发位图字段指示的至少一个片段的第二反馈数据。

    Method and apparatus of network traffic offloading
    4.
    发明授权
    Method and apparatus of network traffic offloading 有权
    网络流量卸载的方法和装置

    公开(公告)号：US08995261B2

    公开(公告)日：2015-03-31

    申请号：US13654332

    申请日：2012-10-17

    Applicant: LG Electronics Inc.

    Inventor： Jong Hyun Park ,  Ill Soo Sohn

    IPC: G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04W28/02

    CPC classification number: H04W28/0231 ,  H04W28/08

    Abstract: Method and apparatus of network traffic offloading is disclosed. Network traffic offloading method may include receiving a first network traffic offloading frame from a base station in a cellular network, the first network traffic offloading frame comprising a frame type instructing a scanning start by broadcasting an advertising frame, traffic information indicating traffic expected to be offloaded by the base station and a transmission configuration indicating a period and a duration to transmit the advertising frame, broadcasting the advertising frame based on the transmission configuration to scan at least one access point (AP), receiving at least one invitation frame from the at least one AP and transmitting a probe request frame to an AP selected among the at least one AP to associate with the selected AP.

    Abstract translation: 披露了网络流量卸载的方法和装置。 网络流量卸载方法可以包括从蜂窝网络中的基站接收第一网络流量卸载帧，第一网络流量卸载帧包括指示扫描开始的帧类型，广播帧，预期要卸载的流量信息 通过基站和表示发送广告帧的周期和持续时间的传输配置，基于传输配置广播广告帧以扫描至少一个接入点（AP），从至少接收至少一个邀请帧 一个AP，并且向所述至少一个AP中选择的AP发送探测请求帧以与所选择的AP相关联。

    Method and apparatus of transmitting PLCP header for sub 1 GHz communication
    5.
    发明授权
    Method and apparatus of transmitting PLCP header for sub 1 GHz communication 有权
    发送用于子1 GHz通信的PLCP报头的方法和装置

    公开(公告)号：US08948284B2

    公开(公告)日：2015-02-03

    申请号：US13670324

    申请日：2012-11-06

    Applicant: LG Electronics Inc.

    Inventor： Jong Hyun Park ,  Eun Sun Kim ,  Yun Jung Yi ,  Ill Soo Sohn ,  Bong Hoe Kim

    IPC: H04K1/10 ,  H04L27/28 ,  H04L27/26

    CPC classification number: H04L27/2613

    Abstract: Method and apparatus of transmitting PLCP header for sub 1 GHz communication is disclosed. A method of transmitting a physical layer convergence protocol (PLCP) header may comprise generating a short training field (STF) sequence over 1 orthogonal frequency division multiplexing (OFDM) symbol, transforming the STF sequence to repeated waveform patterns in time domain and transmitting the PLCP header comprising the STF sequence, wherein the STF sequence may be a sequence transformed to repeated waveform patterns in time domain by inverse discrete Fourier transform (IDFT).

    Abstract translation: 公开了发送用于1GHz通信的PLCP报头的方法和装置。 传输物理层汇聚协议（PLCP）报头的方法可以包括：通过1个正交频分复用（OFDM）符号生成短训练场（STF）序列，将STF序列变换成时域中的重复波形模式，并发送PLCP 包括STF序列的标题，其中STF序列可以是通过反离散傅立叶变换（IDFT）在时域中变换成重复波形图案的序列。

    Channel sounding method in wireless local area network system and apparatus for supporting the same
    9.
    发明授权
    Channel sounding method in wireless local area network system and apparatus for supporting the same 有权
    无线局域网系统中的信道探测方法及其支持的装置

    公开(公告)号：US09350434B2

    公开(公告)日：2016-05-24

    申请号：US14791032

    申请日：2015-07-02

    Applicant: LG ELECTRONICS INC.

    Inventor： Ill Soo Sohn ,  Yong Ho Seok ,  Jong Hyun Park ,  Dae Won Lee ,  Byeong Woo Kang

    IPC: H04J3/16 ,  H04B7/04 ,  H04W74/06 ,  H04W84/12 ,  H04B7/06

    CPC classification number: H04B7/0478 ,  H04B7/0617 ,  H04L5/0048 ,  H04W74/06 ,  H04W84/12

    Abstract: A method for a channel sounding in a wireless local area network. A station receives a 20 MHz null data packet announcement (NDPA) frame and at least one duplicate 20 MHz NDPA frame. The at least one duplicate 20 MHz NDPA frame is a duplicate of the 20 MHz NDPA frame. The station also receives a null data packet (NDP) following the 20 MHz NDPA frame and the at least one duplicate 20 MHz NDPA frame. The bandwidth over which the 20 MHz NDPA frame and the at least one duplicate 20 MHz NDPA frame are transmitted is the same as a bandwidth over which the NDP is transmitted. The station transmits a report frame for the channel sounding. The 20 MHz NDPA frame and the at least one duplicate 20 MHz NDPA frame comprise bandwidth information indicating the bandwidth over which the frames are transmitted.

    Abstract translation: 一种用于无线局域网中的信道探测的方法。 站点接收20MHz空数据分组公告（NDPA）帧和至少一个重复的20MHz NDPA帧。 至少一个20 MHz的NDPA帧是20 MHz NDPA帧的副本。 该站还在20MHz NDPA帧和至少一个重复的20MHz NDPA帧之后接收空数据分组（NDP）。 传输20MHz NDPA帧和至少一个重复的20MHz NDPA帧的带宽与发送NDP的带宽相同。 车站发送通道侦听报警帧。 20MHz NDPA帧和至少一个重复的20MHz NDPA帧包括指示发送帧的带宽的带宽信息。

    Method and apapratus for transmitting a frame in a wireless LAN system
    10.
    发明授权
    Method and apapratus for transmitting a frame in a wireless LAN system 有权
    用于在无线LAN系统中发送帧的方法和apapratus

    公开(公告)号：US09306785B2

    公开(公告)日：2016-04-05

    申请号：US14352633

    申请日：2012-10-16

    Applicant: LG ELECTRONICS INC. ,  KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

    Inventor： Ill Soo Sohn ,  Han Bae Kong ,  Hae Wook Park ,  Inkyu Lee ,  Chang Ick Song

    IPC: H04Q9/00 ,  H04L27/26 ,  H04B7/04 ,  H04B7/06 ,  H04W84/12

    CPC classification number: H04L27/2626 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0619 ,  H04W84/12

    Abstract: The present invention relates to a method and apparatus for transmitting a frame in a wireless LAN system. An access point (AP) receives a single orthogonal frequency division multiplexing (OFDM) symbol from each of a plurality of stations (STA) and a single-tone request to send (sRTS) frame through a single subcarrier, selects STAs for performing uplink (UL) multiuser (MU)-multiple input multiple output (MIMO) transmission, and transmits to the plurality of STAs a single-tone clear to send (sCTS) frame allocated to the same subcarrier as a subcarrier to which the sRTS frames received from the selected STAs are allocated.

    Abstract translation: 本发明涉及一种用于在无线LAN系统中发送帧的方法和装置。 接入点（AP）从多个站（STA）中的每一个接收单个正交频分复用（OFDM）符号和通过单个子载波发送（sRTS）帧的单音请求，选择用于执行上行链路的STA（ UL）多用户（MU）多输入多输出（MIMO）传输，并且向多个STA发送分配给与从sRTS帧接收的sRTS帧相同的子载波的单音清除发送（sCTS）帧 所选择的STA被分配。

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