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    Link adaptation method and apparatus in wireless LAN system
    91.
    发明授权
    Link adaptation method and apparatus in wireless LAN system 有权
    无线局域网系统中的链路自适应方法和装置

    公开(公告)号：US08886116B2

    公开(公告)日：2014-11-11

    申请号：US13522483

    申请日：2010-08-18

    申请人： Yong Ho Seok ,  Yu Jin Noh ,  Bong Hoe Kim ,  Dae Won Lee

    发明人： Yong Ho Seok ,  Yu Jin Noh ,  Bong Hoe Kim ,  Dae Won Lee

    IPC分类号： H04B17/00 ,  H04B7/24 ,  H04B7/00 ,  H04L12/26 ,  H04L1/00 ,  H04W4/00 ,  H04B7/06 ,  H04B7/04

    CPC分类号： H04B7/0452 ,  H04B7/0421 ,  H04B7/0621 ,  H04L5/0053 ,  H04W84/12

    摘要： A link adaptation method performed by a station (STA) in a wireless local area network (LAN) system supporting multi-user multiple-input multiple-output (MU-MIMO) is provided. The method includes: receiving a modulation and coding scheme (MCS) request, a steered sounding physical layer convergence procedure (PLOP) protocol data unit (PPDU) which is beam-formed to the STA, and a MIMO indicator including MU-MIMO-related information from an access point (AP); and transmitting feedback information including an MCS acquired from the steered sounding PPDU and the MU-MIMO-related information to the AP in response to the MCS request.

    摘要翻译： 提供了一种由支持多用户多输入多输出（MU-MIMO）的无线局域网（LAN）系统中的站（STA）执行的链路自适应方法。 该方法包括：接收调制编码方案（MCS）请求，对STA进行波束形成的转向探测物理层融合过程（PLOP）协议数据单元（PLDU）以及包含MU-MIMO相关的MIMO指示符 来自接入点（AP）的信息; 以及响应于所述MCS请求，向所述AP发送包括从所述转向探测PPDU获得的MCS和所述MU-MIMO相关信息的反馈信息。

    LINK ADAPTATION METHOD AND APPARATUS IN WIRELESS LAN SYSTEM
    94.
    发明申请
    LINK ADAPTATION METHOD AND APPARATUS IN WIRELESS LAN SYSTEM 有权
    无线局域网系统中的链路适配方法和设备

    公开(公告)号：US20120294255A1

    公开(公告)日：2012-11-22

    申请号：US13522483

    申请日：2010-08-18

    申请人： Yong Ho Seok ,  Yu Jin Noh ,  Bong Hoe Kim ,  Dae Won Lee

    发明人： Yong Ho Seok ,  Yu Jin Noh ,  Bong Hoe Kim ,  Dae Won Lee

    IPC分类号： H04W72/08

    CPC分类号： H04B7/0452 ,  H04B7/0421 ,  H04B7/0621 ,  H04L5/0053 ,  H04W84/12

    摘要： A link adaptation method performed by a station (STA) in a wireless local area network (LAN) system supporting multi-user multiple-input multiple-output (MU-MIMO) is provided. The method includes: receiving a modulation and coding scheme (MCS) request, a steered sounding physical layer convergence procedure (PLOP) protocol data unit (PPDU) which is beam-formed to the STA, and a MIMO indicator including MU-MIMO-related information from an access point (AP); and transmitting feedback information including an MCS acquired from the steered sounding PPDU and the MU-MIMO-related information to the AP in response to the MCS request.

    摘要翻译： 提供了一种由支持多用户多输入多输出（MU-MIMO）的无线局域网（LAN）系统中的站（STA）执行的链路自适应方法。 该方法包括：接收调制编码方案（MCS）请求，对STA进行波束形成的转向探测物理层融合过程（PLOP）协议数据单元（PLDU）以及包含MU-MIMO相关的MIMO指示符 来自接入点（AP）的信息; 以及响应于所述MCS请求，向所述AP发送包括从所述转向探测PPDU获得的MCS和所述MU-MIMO相关信息的反馈信息。

    STBC based transmission method considering number of symbols in slot
    95.
    发明授权
    STBC based transmission method considering number of symbols in slot 有权
    考虑到插槽中符号数的STBC传输方法

    公开(公告)号：US08259776B2

    公开(公告)日：2012-09-04

    申请号：US12585649

    申请日：2009-09-21

    申请人： Dae Won Lee ,  Yu Jin Noh ,  Bong Hoe Kim ,  Ki Jun Kim

    发明人： Dae Won Lee ,  Yu Jin Noh ,  Bong Hoe Kim ,  Ki Jun Kim

    IPC分类号： H04B1/00

    CPC分类号： H04L5/0023 ,  H04L1/0625 ,  H04L1/0643 ,  H04L5/0044 ,  H04L5/0048

    摘要： An STBC based signal transmission method considering the number of symbols within a slot. In transmitting a signal using two or more transmission antennas in a mobile communication system using a structure in which one subframe includes two slots and each slot includes a plurality of symbols, transmission symbols are paired in units of two consecutive symbols within each subframe by an STBC scheme. The transmission symbols are mapped to a frequency region in units of slots and the mapped transmission symbols are transmitted. One symbol within a slot in which the number of symbols excluding symbols for transmitting a reference signal is an odd number is not paired by the STBC scheme.

    摘要翻译： 考虑在一个时隙内的符号数量的基于STBC的信号传输方法。 在使用其中一个子帧包括两个时隙并且每个时隙包括多个符号的结构的移动通信系统中发送使用两个或更多个发送天线的信号时，发送符号以每个子帧内的两个连续符号的单位被STBC 方案。 发送符号以时隙为单位映射到频率区域，并且发送映射的发送符号。 其中除了用于发送参考信号的符号之外的符号的数目是奇数的时隙内的一个符号不被STBC方案配对。

    Method and apparatus for transmitting data frame in WLAN system
    97.
    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：US08699442B2

    公开(公告)日：2014-04-15

    申请号：US13505409

    申请日：2011-06-28

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

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

    IPC分类号： H04W4/00 ,  H04J3/16

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

    摘要： A method of transmitting a data frame in a wireless local area network is provided. The method includes TXOP the step of: obtaining a transmission opportunity (TXOP) indicating a time interval during which a transmitter has a right to transmit at least one data frame and an available bandwidth for the TXOP and sequentially transmitting a plurality of data frames to at least one receiver during the TXOP, wherein a bandwidth of a subsequent data frame of the plurality of data frames is same to or narrower than a bandwidth of a preceding data frame of the plurality of data frames which is last previously transmitted before the subsequent data frame.

    摘要翻译： 提供了一种在无线局域网中发送数据帧的方法。 该方法包括以下步骤：获得指示发送机具有发送至少一个数据帧的权利和TXOP的可用带宽的时间间隔的发送机会（TXOP），并且将多个数据帧顺序发送到 所述TXOP期间的至少一个接收机，其中所述多个数据帧中的后续数据帧的带宽与所述多个数据帧中的先前数据帧的带宽相同或更小，所述先前数据帧的最后先前在所述后续数据帧之前传输 。

    PPDU RECEIVING METHOD AND APPARATUS BASED ON THE MIMO TECHNIQUE IN A WLAN SYSTEM
    98.
    发明申请
    PPDU RECEIVING METHOD AND APPARATUS BASED ON THE MIMO TECHNIQUE IN A WLAN SYSTEM 有权
    基于WLAN系统中的MIMO技术的PPDU接收方法和装置

    公开(公告)号：US20120327915A1

    公开(公告)日：2012-12-27

    申请号：US13582036

    申请日：2011-03-02

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

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

    IPC分类号： H04W72/04

    CPC分类号： H04L5/003 ,  H04B7/0452 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0053 ,  H04W72/0406

    摘要： Provided is a method of receiving a physical layer convergence procedure (PLCP) protocol data unit (PPDU) by an access point (AP) in a wireless local area (LAN) system. The method includes: allocating a first transmission channel bandwidth to a first station (STA) which is multiple input multiple output (MIMO)-paired with the AP; allocating a second transmission channel bandwidth to a second STA which is MIMO-paired with the AP; transmitting to the first STA and the second STA a sync trigger for determining a time point at which the first STA transmits a first PPDU and a time point at which the second STA transmits a second PPDU; and receiving simultaneously the first PPDU and the second PPDU from the first STA and the second STA.

    摘要翻译： 提供了一种通过无线局域网（LAN）系统中的接入点（AP）接收物理层汇聚过程（PLCP）协议数据单元（PPDU）的方法。 该方法包括：将第一传输信道带宽分配给与AP一起主导的多输入多输出（MIMO）的第一站（STA）; 向与所述AP配对的第二STA分配第二传输信道带宽; 向所述第一STA和所述第二STA发送用于确定所述第一STA发送第一PPDU的时间点和所述第二STA发送第二PPDU的时间点的同步触发; 以及从第一STA和第二STA同时接收第一PPDU和第二PPDU。

    METHOD AND APPARATUS FOR INDICATING DESTINATION STATIONS IN WLAN SYSTEM SUPPORTING MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT
    99.
    发明申请
    METHOD AND APPARATUS FOR INDICATING DESTINATION STATIONS IN WLAN SYSTEM SUPPORTING MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT 有权
    用于指示支持多用户多输入多输出的WLAN系统中的目的地站的方法和装置

    公开(公告)号：US20120106531A1

    公开(公告)日：2012-05-03

    申请号：US13382522

    申请日：2010-07-06

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

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

    IPC分类号： H04W84/02

    CPC分类号： H04B7/0452 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0226 ,  H04W4/06 ,  H04W8/26 ,  H04W24/00 ,  H04W48/08 ,  H04W52/346 ,  H04W84/12 ,  H04W88/08

    摘要： A method of indicating destination stations, performed by an access point (AP), in a wireless local area network (WLAN) system supporting multi-user multiple input multiple output (MU-MIMO) is provided. The method includes transmitting a sounding request frame to the plurality of destination stations to transmit a sounding frame used for channel estimation between the AP and each destination station, receiving the sounding frame in response to the sounding frame request from each station, and transmitting a first data frame spatially multiplexed with respect to the plurality of destination stations by performing channel estimation on the basis of the sounding frame, wherein the sounding request frame comprises a group identifier (ID) indicating the plurality of destination stations.

    摘要翻译： 提供了一种在支持多用户多输入多输出（MU-MIMO）的无线局域网（WLAN）系统中由接入点（AP）指示目的地站的方法。 所述方法包括：向所述多个目的地站发送探测请求帧，以发送在所述AP与每个目的站之间用于信道估计的探测帧，响应于来自每个站的所述探测帧请求接收所述探测帧，以及发送第一 通过基于所述探测帧进行信道估计而相对于所述多个目的站进行空间复用的数据帧，其中所述探测请求帧包括指示所述多个目的地站的组标识符（ID）。

    REFERENCE SIGNAL TRANSMISSION METHOD FOR DOWNLINK MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM
    100.
    发明申请
    REFERENCE SIGNAL TRANSMISSION METHOD FOR DOWNLINK MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM 失效
    用于下行多路输入多输出系统的参考信号传输方法

    公开(公告)号：US20110228718A1

    公开(公告)日：2011-09-22

    申请号：US13131596

    申请日：2009-12-09

    申请人： Yu Jin Noh ,  Ki Jun Kim ,  Dae Won Lee ,  Bong Hoe Kim ,  Joon Kui Ahn

    发明人： Yu Jin Noh ,  Ki Jun Kim ,  Dae Won Lee ,  Bong Hoe Kim ,  Joon Kui Ahn

    IPC分类号： H04B7/06 ,  H04W4/06

    CPC分类号： H04L5/0051

    摘要： A method of a reference signal (RS) in a downlink MIMO communication system is disclosed. The method comprises generating a subframe including the RS, and transmitting the generated subframe to an user equipment (UE). RSs of predetermined four antennas among the eight transmitting antennas are mapped into a first OFDM symbol and a second OFDM symbol of the subframe, and RSs of one or more antennas among the eight transmitting antennas are mapped into the other OFDM symbols. The other OFDM symbols are recognized by only a UE that supports the eight transmitting antennas.

    摘要翻译： 公开了下行MIMO通信系统中的参考信号（RS）的方法。 该方法包括生成包括RS的子帧，并将生成的子帧发送给用户设备（UE）。 八个发送天线中的预定四个天线的RS被映射到子帧的第一OFDM符号和第二OFDM符号中，并且八个发送天线中的一个或多个天线的RS被映射到其他OFDM符号中。 其他OFDM符号仅由支持八个发射天线的UE识别。