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    Method for transmitting control information and apparatus for the same
    72.
    发明授权
    Method for transmitting control information and apparatus for the same 有权
    用于发送控制信息的方法及其装置

    公开(公告)号：US09300512B2

    公开(公告)日：2016-03-29

    申请号：US14227993

    申请日：2014-03-27

    Applicant: LG ELECTRONICS INC.

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

    IPC: H04L27/26 ,  H04B7/04 ,  H04W84/12

    CPC classification number: H04L69/323 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/06 ,  H04L27/2626 ,  H04L27/2646 ,  H04L27/2647 ,  H04L27/28 ,  H04W84/12

    Abstract: Methods and devices for transmitting or receiving data in a wireless local area network are provided. The method in one embodiment includes transmitting, by a transmitter, a first long training field (LTF) to a receiver; transmitting, by the transmitter, a very high throughput (VHT)-SIG-A field to the receiver; transmitting, by a transmitter, a second LTF for multiple input multiple output (MIMO) channel estimation to the receiver; transmitting, by the transmitter, a VHT-SIG-B field to the receiver; and transmitting, by the transmitter, a data field to the receiver, wherein the first LTF, the VHT-SIG-A field, the second LTF, the VHT-SIG-B field and the data field are sequentially transmitted, and wherein the second LTF and the data field are mapped to at least one spatial stream based on a mapping matrix but the first LTF and the VHT SIG-A field are not mapped to the at least one spatial stream.

    Abstract translation: 提供了用于在无线局域网中发送或接收数据的方法和设备。 一个实施例中的方法包括由发射机向接收机发送第一长训练场（LTF）; 由发射机向接收机发射非常高的吞吐量（VHT）-SIG-A场; 由发射机向所述接收机发送用于多输入多输出（MIMO）信道估计的第二LTF; 由发射机向接收机发送VHT-SIG-B字段; 并且由所述发射机将数据字段发送到所述接收机，其中所述第一LTF，所述VHT-SIG-A字段，所述第二LTF，所述VHT-SIG-B字段和所述数据字段被顺序地发送，并且其中所述第二 基于映射矩阵将LTF和数据字段映射到至少一个空间流，但是第一LTF和VHT SIG-A字段未映射到至少一个空间流。

    Method and apparatus for transmitting/receiving a reference signal in a wireless communication system
    73.
    发明授权
    Method and apparatus for transmitting/receiving a reference signal in a wireless communication system 有权
    用于在无线通信系统中发送/接收参考信号的方法和装置

    公开(公告)号：US09294243B2

    公开(公告)日：2016-03-22

    申请号：US14514111

    申请日：2014-10-14

    Applicant: LG ELECTRONICS INC.

    Inventor： Dae Won Lee ,  Seung Hee Han ,  Ki Jun Kim ,  Joon Kui Ahn

    IPC: H04J11/00 ,  H04L5/00 ,  H04J13/00 ,  H04J13/18

    CPC classification number: H04L5/0048 ,  H04J13/0048 ,  H04J13/18 ,  H04L5/0007

    Abstract: A base station apparatus for transmitting a reference signal in a wireless communication system is provided in which a processor generates the same sequence for resource elements (REs) allocated to each layer for reference signal transmission and spreads or covers Walsh codes for a user equipment-specific reference signal sequence such that sequences generated for the REs can be orthogonal to each other on a time axis. The Walsh code spreading or covering by the processor is applied on a frequency axis based on a plurality of resource blocks (RBs) or based on a pair of RBs such that mutually different sequences having mutually different sequence values can be mapped between RBs or between pairs of RBs. A transmission module transmits the reference signal, to which the generated reference signal sequence is applied to user equipment via each layer.

    Abstract translation: 提供了一种用于在无线通信系统中发送参考信号的基站装置，其中处理器为分配给每个层的资源元素（RE）生成相同的序列用于参考信号传输，并扩展或覆盖针对用户设备特定的Walsh码 参考信号序列，使得为RE产生的序列可以在时间轴上彼此正交。 由处理器扩展或覆盖的沃尔什码基于多个资源块（RB）或基于一对RB来施加在频率轴上，使得具有相互不同的序列值的相互不同的序列可以在RB之间或对之间映射 的RB。 传输模块经由每个层发送所生成的参考信号序列被应用于用户设备的参考信号。

    Method and apparatus for transmitting data frame in WLAN system
    74.
    发明授权
    Method and apparatus for transmitting data frame in WLAN system 有权
    在WLAN系统中发送数据帧的方法和装置

    公开(公告)号：US09271191B2

    公开(公告)日：2016-02-23

    申请号：US14559688

    申请日：2014-12-03

    Applicant: LG Electronics Inc.

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

    IPC: H04W72/04 ,  H04W28/20 ,  H04B7/04 ,  H04W84/12 ,  H04W88/02 ,  H04W74/08

    CPC classification number: H04W72/0446 ,  H04B7/0452 ,  H04W28/20 ,  H04W72/04 ,  H04W72/0406 ,  H04W74/0808 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

    Abstract: A method and a station are described for transmitting a data frame in a wireless local area network (WLAN). The station obtains a transmission opportunity (TXOP) and transmits, during the TXOP, a preceding data unit of a plurality of data units comprising a control field indicating a selected bandwidth for the preceding data unit. The station selects a transmit bandwidth parameter of a non-initial data unit of the plurality of data units from available bandwidth parameters. The available bandwidth parameters include a first available bandwidth parameter which is same as a transmit bandwidth parameter of the preceding data unit of the plurality of data units and a second available bandwidth parameter which is narrower than a transmit bandwidth parameter of the preceding data unit. The station transmits, during the TXOP, the non-initial data unit, which comprises a control field indicating a selected bandwidth for the non-initial data unit.

    Abstract translation: 描述了用于在无线局域网（WLAN）中发送数据帧的方法和站。 站点获得传输机会（TXOP），并且在TXOP期间发送包括指示前一数据单元的选定带宽的控制字段的多个数据单元的前一个数据单元。 站从可用带宽参数中选择多个数据单元的非初始数据单元的发送带宽参数。 可用带宽参数包括与多个数据单元中的先前数据单元的发送带宽参数相同的第一可用带宽参数和比先前数据单元的发送带宽参数更窄的第二可用带宽参数。 该站在TXOP期间发送非初始数据单元，该非初始数据单元包括指示非初始数据单元的选定带宽的控制字段。

    Method for reporting channel information based on link adaptation in wireless local area network and the apparatus for the same
    75.
    发明授权
    Method for reporting channel information based on link adaptation in wireless local area network and the apparatus for the same 有权
    基于无线局域网中的链路自适应报告信道信息的方法及其装置

    公开(公告)号：US09258799B2

    公开(公告)日：2016-02-09

    申请号：US14297483

    申请日：2014-06-05

    Applicant: LG ELECTRONICS INC.

    Inventor： Ill Soo Sohn ,  Yong Ho Seok ,  Kyoung Young Song ,  Dae Won Lee ,  Byeong Woo Kang

    IPC: H04W72/04 ,  H04L1/00 ,  H04L1/06 ,  H04W24/10

    CPC classification number: H04L1/0003 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/06 ,  H04W24/10 ,  H04W72/04

    Abstract: A method and device for link adaptation in a wireless local area network system, are discussed. The method may include receiving, by a responding station, from a requesting station, a requesting Physical layer Protocol Data Unit (PPDU) for requesting a modulation and coding scheme (MCS) feedback via a plurality of spatial streams, the requesting PPDU including an MCS request (MRQ) field that is set to one to request the responding station to provide the MCS feedback; and transmitting, by the responding station, to the requesting station, the MCS feedback including a recommended MCS field and a recommended stream field. The recommended MCS field indicates a recommended MCS, the recommended stream field indicates a number of at least one recommended spatial stream, and the number of the at least one recommended spatial stream is less than a number of the plurality of spatial streams used for the requesting PPDU.

    Abstract translation: 讨论了一种在无线局域网系统中进行链路自适应的方法和装置。 所述方法可以包括由响应站从请求站接收用于经由多个空间流请求调制和编码方案（MCS）反馈的请求物理层协议数据单元（PPDU），所述请求PPDU包括MCS 请求（MRQ）字段设置为1以请求响应站提供MCS反馈; 并且由响应站向请求站发送MCS反馈，其包括推荐的MCS字段和推荐流字段。 推荐的MCS字段指示推荐的MCS，推荐的流字段指示至少一个推荐的空间流的数量，并且至少一个推荐的空间流的数量小于用于请求的多个空间流的数量 PPDU。

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