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    METHOD AND APPARATUS FOR DETERMINING MODULATION AND CODING SCHEME FEEDBACK IN WIRELESS LOCAL AREA NETWORK SYSTEM
    2.
    发明申请
    METHOD AND APPARATUS FOR DETERMINING MODULATION AND CODING SCHEME FEEDBACK IN WIRELESS LOCAL AREA NETWORK SYSTEM 有权
    在无线局域网系统中确定调制和编码方案反馈的方法和装置

    公开(公告)号：US20130235836A1

    公开(公告)日：2013-09-12

    申请号：US13885332

    申请日：2011-11-14

    申请人： Dong Wook Roh ,  Ill Soo Sohn ,  Kyoung Young Song ,  Dae Won Lee ,  Yong Ho Seok

    发明人： Dong Wook Roh ,  Ill Soo Sohn ,  Kyoung Young Song ,  Dae Won Lee ,  Yong Ho Seok

    IPC分类号： H04L1/00

    CPC分类号： H04L1/0004 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0031 ,  H04L1/0079 ,  H04L1/0618 ,  H04L1/1685

    摘要： The present invention relates to a method of determining a Modulation and Coding Scheme (MCS) feedback in a Wireless Local Area Network (WLAN) system, including an MCS FeedBack (MFB) responder receiving a first frame, including a request message requesting to send the MFB, from an MFB requester and the MFB responder sending the MFB, including a recommended MCS value, to the MFB requester. The recommended MCS value is derived with reference to at least one of unsolicit type information indicative of a type of the MFB, transmit type information indicative of a transmission type of data, coding type information indicative of a coding scheme applied to the data, a group ID indicative of a group of target stations (STAs) to which the data will be transmitted, and MFB bandwidth information indicative of a bandwidth of a channel.

    摘要翻译： 本发明涉及一种在无线局域网（WLAN）系统中确定调制和编码方案（MCS）反馈的方法，包括接收第一帧的MCS反馈（MFB）应答器，包括请求发送 MFB，MFB请求者和MFB响应者向MFB请求者发送MFB，包括推荐的MCS值。 推荐的MCS值是参照表示MFB的类型的非事件型信息，指示数据的传输类型的发送类型信息，表示应用于数据的编码方式的编码类型信息，组 指示要发送数据的一组目标站（STA）的ID以及指示信​​道带宽的MFB带宽信息。

    Method and apparatus for transceiving a data frame in a wireless LAN system
    3.
    发明授权
    Method and apparatus for transceiving a data frame in a wireless LAN system 有权
    用于在无线LAN系统中收发数据帧的方法和装置

    公开(公告)号：US09078251B2

    公开(公告)日：2015-07-07

    申请号：US13879794

    申请日：2011-10-27

    申请人： Dong Wook Roh ,  Byeong Woo Kang ,  Dae Won Lee ,  Yong Ho Seok

    发明人： Dong Wook Roh ,  Byeong Woo Kang ,  Dae Won Lee ,  Yong Ho Seok

    IPC分类号： H04L27/00 ,  H04W52/42 ,  H04W76/04 ,  H04L1/00 ,  H04B7/04 ,  H04B7/06

    CPC分类号： H04W72/042 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0697 ,  H04L1/0025 ,  H04L1/0041 ,  H04L2001/0093 ,  H04W52/42 ,  H04W84/12

    摘要： A method of transmitting a data frame by a transmitter in a WLAN system is provided. The method includes generating a data block including at least one data units respectively transmitted through at least one or more spatial streams to at least one receiver, transmitting first control information to the at least one receiver, transmitting second control information to each receiver, and transmitting the data block to the at least one receiver. The first control information includes a length indicator for the data block, a MIMO indicator indicating whether the data block is for SU-MIMO or MU-MIMO, and a spatial stream indication field including information about the number of the spatial streams. The second control information includes a FEC coding field indicating an encoding scheme applied to the data unit and an MCS field indicating an MCS applied to the data unit.

    摘要翻译： 提供了一种通过WLAN系统中的发射机发送数据帧的方法。 该方法包括生成包括分别通过至少一个或多个空间流发送到至少一个接收器的至少一个数据单元的数据块，向至少一个接收机发送第一控制信息，向每个接收机发送第二控制信息，并发送 所述数据块到所述至少一个接收器。 第一控制信息包括用于数据块的长度指示符，指示数据块是用于SU-MIMO还是MU-MIMO的MIMO指示符，以及包括关于空间流的数量的信息的空间流指示字段。 第二控制信息包括指示应用于数据单元的编码方案的FEC编码字段和指示应用于数据单元的MCS的MCS字段。

    Method and apparatus for transceiving a MIMO packet in a wireless LAN system
    9.
    发明授权
    Method and apparatus for transceiving a MIMO packet in a wireless LAN system 有权
    用于在无线LAN系统中收发MIMO分组的方法和装置

    公开(公告)号：US08879490B2

    公开(公告)日：2014-11-04

    申请号：US13505388

    申请日：2011-06-30

    申请人： Dae Won Lee ,  Byeong Woo Kang ,  Yu Jin Noh ,  Yong Ho Seok ,  Dong Wook Roh

    发明人： Dae Won Lee ,  Byeong Woo Kang ,  Yu Jin Noh ,  Yong Ho Seok ,  Dong Wook Roh

    IPC分类号： H04W4/00 ,  H04L1/00 ,  H04L1/06 ,  H04L27/26 ,  H04B7/04 ,  H04W84/12

    CPC分类号： H04L1/0009 ,  H04B7/0413 ,  H04B7/0452 ,  H04L1/0003 ,  H04L1/0031 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0075 ,  H04L1/06 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2602 ,  H04W84/12

    摘要： A method of transmitting a multiple input multiple output (MIMO) packet by a transmitter in a wireless local area network (WLAN) system is provided. The method includes: generating a MIMO packet including at least one spatial stream set transmitted respectively to at least one receiver, wherein each spatial stream set is encoded on the basis of one of two encoding schemes; transmitting first control information including a MIMO indicator and a first modulation and coding scheme (MCS) field, wherein the MIMO indicator indicates whether the MIMO packet is for single user (SU)-MIMO or multi user (MU)-MIMO, and the first MCS field indicates an MCS used for the MIMO packet if the MIMO packet is for SU-MIMO transmission, and indicates an encoding scheme applied for each of the spatial stream sets if the MIMO packet is for MU-MIMO transmission; and transmitting the MIMO packet to at least one receiver.

    摘要翻译： 提供了一种在无线局域网（WLAN）系统中由发射机发送多输入多输出（MIMO）分组的方法。 该方法包括：产生包括分别发送给至少一个接收机的至少一个空间流集合的MIMO分组，其中每个空间流集合基于两种编码方案之一进行编码; 发送包括MIMO指示符和第一调制和编码方案（MCS）字段的第一控制信息，其中所述MIMO指示符指示所述MIMO分组是针对单用户（SU）-MIMO还是多用户（MU）-MIMO，并且所述第一 如果MIMO分组用于SU-MIMO传输，则MCS字段指示用于MIMO分组的MCS，并且如果MIMO分组用于MU-MIMO传输，则指示针对每个空间流集合应用的编码方案; 以及将MIMO分组发送到至少一个接收机。

    Method and apparatus of transmitting training signal in wireless local area network system
    10.
    发明授权
    Method and apparatus of transmitting training signal in wireless local area network system 有权
    在无线局域网系统中传送训练信号的方法和装置

    公开(公告)号：US09042484B2

    公开(公告)日：2015-05-26

    申请号：US12965635

    申请日：2010-12-10

    申请人： Byeong Woo Kang ,  Dong Wook Roh ,  Yong Ho Seok ,  Yu Jin Noh ,  Bong Hoe Kim ,  Dae Won Lee

    发明人： Byeong Woo Kang ,  Dong Wook Roh ,  Yong Ho Seok ,  Yu Jin Noh ,  Bong Hoe Kim ,  Dae Won Lee

    IPC分类号： H04L5/00 ,  H04W99/00 ,  H04W84/12

    CPC分类号： H04L5/0048 ,  H04L27/2628 ,  H04W84/12 ,  H04W99/00

    摘要： A method of transmitting a training signal in a Wireless Local Area Network (WLAN) system includes generating one or more first training signals for a first destination station and one or more second training signals for a second destination station by applying a mapping matrix P to a training signal generation sequence, mapping the first training signals and the second training signals to a plurality of antennas according to an antenna mapping matrix, and performing Inverse Fast Fourier Transform (IFFT) on each of the first training signals and the second training signals mapped to the plurality of antennas and transmitting the training signals through the plurality of antennas.

    摘要翻译： 在无线局域网（WLAN）系统中发送训练信号的方法包括：通过将映射矩阵P应用于第一目的地站，生成用于第一目的地站的一个或多个第一训练信号和用于第二目的地站的一个或多个第二训练信号 训练信号生成序列，根据天线映射矩阵将第一训练信号和第二训练信号映射到多个天线，并对第一训练信号和第二训练信号中的每一个进行反傅里叶逆变换（IFFT），映射到 多个天线，并通过多个天线发送训练信号。