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    METHOD AND DEVICE FOR TRANSMITTING DATA BASED ON DIFFERENT PILOT TONE PATTERNS IN WIRELESS LAN
    61.
    发明申请
    METHOD AND DEVICE FOR TRANSMITTING DATA BASED ON DIFFERENT PILOT TONE PATTERNS IN WIRELESS LAN 有权

    公开(公告)号：US20170373908A1

    公开(公告)日：2017-12-28

    申请号：US15524785

    申请日：2015-11-27

    Applicant: LG ELECTRONICS INC.

    Inventor： Jinsoo CHOI ,  Jinyoung CHUN ,  Wookbong LEE ,  Dongguk LIM ,  Hangyu CHO ,  Eunsung PARK

    IPC: H04L27/26 ,  H04B7/0452 ,  H04B7/06 ,  H04W84/12

    CPC classification number: H04L27/2675 ,  H04B7/0452 ,  H04B7/0697 ,  H04L5/0048 ,  H04L27/2613 ,  H04W84/12

    Abstract: Disclosed are a method and a device for transmitting data based on different pilot tone patterns in a wireless LAN. The method for transmitting data based on the different pilot tone patterns in a wireless LAN may comprise the steps of: an AP transmitting, to a first STA, a first data field generated based on a first pilot tone pattern, from a first frequency bandwidth; and the AP transmitting, to a second STA, a second data field generated based on a second pilot tone pattern, from a second frequency bandwidth, wherein the size of the first frequency bandwidth is n times larger than the size of the second frequency bandwidth, the size of IFFT applied to the first data field and the size of IFFT applied to the second data field are identical, the first pilot tone pattern includes a plurality of first pilot tones, wherein the plurality of first pilot tones are respectively allocated to each of a plurality of first pilot tone indexes, the second pilot tone pattern includes a plurality of second pilot tones, wherein the plurality of second pilot tones are respectively allocated to each of a plurality of second pilot tone indexes, and wherein a portion of the first pilot tone indexes may be identical to the plurality of second pilot tone indexes.

    METHOD AND APPARATUS FOR CONFIGURING LONG TRAINING FIELD IN WIRELESS LOCAL NETWORK SYSTEM
    66.
    发明申请
    METHOD AND APPARATUS FOR CONFIGURING LONG TRAINING FIELD IN WIRELESS LOCAL NETWORK SYSTEM 审中-公开

    公开(公告)号：US20170155486A1

    公开(公告)日：2017-06-01

    申请号：US15337913

    申请日：2016-10-28

    Applicant: LG ELECTRONICS INC.

    Inventor： Eunsung PARK ,  Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO

    IPC: H04L5/00 ,  H04W72/04

    CPC classification number: H04L5/0048 ,  H04L5/005 ,  H04L27/2613

    Abstract: Provided is a method and an apparatus of configuring a LTF sequence in a wireless LAN system. In specific, a transmitting apparatus configures a LTF sequence of a second wireless LAN system by using a LTF sequence of a first wireless LAN system. The transmitting apparatus transmits the LTF sequence of the second wireless LAN system via a PPDU including a first field region and a second field region. The LTF sequence of the second wireless LAN system includes a first LTF sequence obtained by up-scaling a frequency index of the LTF sequence of the first wireless LAN system by four times and a second LTF sequence obtained by adding a frequency index which an optimized coefficient is applied. A phase rotation is applied to the LTF sequence of first wireless LAN system as per a first frequency band.

    METHOD AND APPARATUS FOR TRANSMITTING FEEDBACK FRAME IN WIRELESS LOCAL AREA NETWORK SYSTEM
    68.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING FEEDBACK FRAME IN WIRELESS LOCAL AREA NETWORK SYSTEM 审中-公开

    公开(公告)号：US20170111148A1

    公开(公告)日：2017-04-20

    申请号：US15296997

    申请日：2016-10-18

    Applicant: LG ELECTRONICS INC.

    Inventor： Eunsung PARK ,  Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO

    IPC: H04L5/00 ,  H04W72/12

    CPC classification number: H04L5/0048 ,  H04W84/12

    Abstract: Provides are a method and an apparatus for transmitting a feedback frame in a wireless local area network (WLAN) system. Specifically, a station (STA) receives, from an access point (AP), a null data packet announcement (NDPA) frame indicating transmission of a null data packet (NDP). The STA receives the NDP from the AP. The STA transmits, to the AP, a feedback frame including channel state information determined based on the NDP. The channel state information indicates a feedback subcarrier in each subcarrier group. The subcarrier group is generated based on grouping information using subcarriers in a frequency band excluding a guard subcarrier and a DC subcarrier. The feedback subcarrier is included in a subcarrier with an odd-numbered subcarrier index. The feedback subcarrier corresponds to a subcarrier with an even-numbered subcarrier index that is adjacent to the subcarrier with the odd-numbered subcarrier when the subcarrier with the odd-numbered subcarrier is a null subcarrier.

    METHOD AND APPARATUS FOR LIMITING RESOURCES FOR DEVICE-TO-DEVICE OPERATION IN WIRELESS COMMUNICATION SYSTEM
    70.
    发明申请
    METHOD AND APPARATUS FOR LIMITING RESOURCES FOR DEVICE-TO-DEVICE OPERATION IN WIRELESS COMMUNICATION SYSTEM 审中-公开
    用于限制无线通信系统中设备到设备操作的资源的方法和装置

    公开(公告)号：US20160353414A1

    公开(公告)日：2016-12-01

    申请号：US15165969

    申请日：2016-05-26

    Applicant: LG ELECTRONICS INC.

    Inventor： Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO ,  Wookbong LEE

    IPC: H04W72/04 ,  H04W76/02 ,  H04W4/00

    CPC classification number: H04W76/14 ,  H04L5/00 ,  H04W4/70 ,  H04W72/042 ,  H04W84/12

    Abstract: Provided is a method for receiving an uplink PPDU by using a plurality of RUs through a specific band in a wireless LAN system in which a plurality of bands is supported. Transmission of the uplink PPDU is disclosed by a trigger frame and the trigger frame indicates information on an identifier and a frequency resource of each station. In the trigger frame, an index field indicating the RU may be configured with the same size regardless of a bandwidth. To this end, a plurality of index groups is used instead of a method indicating a bitmap field or a start point/offset. A first index group of the index field may be used to indicate a first RU and a second index group of the index field may be used to indicate a second RU.

    Abstract translation: 提供了一种在支持多个频带的无线LAN系统中通过特定频带使用多个RU来接收上行链路PPDU的方法。 上行链路PPDU的发送由触发帧公开，触发帧指示关于每个站的标识符和频率资源的信息。 在触发帧中，指示RU的索引字段可以被配置为具有相同的大小而与带宽无关。 为此，使用多个索引组而不是指示位图字段或起点/偏移的方法。 索引字段的第一索引组可以用于指示第一RU，并且索引字段的第二索引组可以用于指示第二RU。

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