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    METHOD AND APPARATUS FOR INDICATING DESTINATION STATIONS IN WLAN SYSTEM SUPPORTING MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT
    33.
    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）。

    METHOD FOR INDICATING PRECODING MATRIX INDICATOR IN UPLINK MIMO SYSTEM WITH BASED ON SC-FDMA
    34.
    发明申请
    METHOD FOR INDICATING PRECODING MATRIX INDICATOR IN UPLINK MIMO SYSTEM WITH BASED ON SC-FDMA 有权
    基于SC-FDMA的上行MIMO系统中预测矩阵指示符的方法

    公开(公告)号：US20120082102A1

    公开(公告)日：2012-04-05

    申请号：US13148886

    申请日：2010-02-19

    申请人： Byeong Woo Kang ,  Joon Kui Ahn ,  Dong Youn Seo ,  Jung Hoon Lee ,  Yu Jin Noh ,  Byoung Hoon Kim ,  Suck Chel Yang ,  Bong Hoe Kim ,  Dae Won Lee

    发明人： Byeong Woo Kang ,  Joon Kui Ahn ,  Dong Youn Seo ,  Jung Hoon Lee ,  Yu Jin Noh ,  Byoung Hoon Kim ,  Suck Chel Yang ,  Bong Hoe Kim ,  Dae Won Lee

    IPC分类号： H04W74/04 ,  H04W72/04

    CPC分类号： H04B7/0639 ,  H04L5/0039

    摘要： A method of transmitting PMI (precoding matrix indicator) information in an uplink MIMO system is disclosed. The present invention includes the steps of receiving channel information from a user equipment and transmitting information on a resource allocated to the user equipment in uplink transmission and PMI information indicating a precoding matrix to apply to a region of the resource among a plurality of precoding matrices to the user equipment based on the received channel information, wherein the resource allocated to the user equipment is allocated by a bundle unit of a prescribed number of subcarriers, wherein each of a plurality of the precoding matrices are applied to regions generated from dividing a whole frequency band into a prescribed number of regions, respectively, and wherein the precoding matrix applied to the resource among a plurality of the precoding matrices has a maximum area resulting from overlapping a frequency band occupied by the allocated resource with a frequency band having the precoding matrix applied thereto.

    摘要翻译： 公开了一种在上行链路MIMO系统中发送PMI（预编码矩阵指示符）信息的方法。 本发明包括以下步骤：从用户设备接收信道信息，并在上行链路传输中发送关于分配给用户设备的资源的信息，以及指示预编码矩阵的PMI信息，以应用于多个预编码矩阵中的资源区域，以 所述用户设备基于所接收的信道信息，其中，分配给所述用户设备的资源由规定数量的副载波的分组单元分配，其中，所述多个预编码矩阵中的每一个被应用于从分频整个频率 并且其中在多个预编码矩阵中应用于资源的预编码矩阵具有由所分配的资源占据的频带与具有预编码矩阵的频带重叠而产生的最大区域 到此。

    METHOD FOR TRANSMITTING DATA BY APPLYING PRECODING MATRIX IN AN OPEN LOOP MIMO SYSTEM
    35.
    发明申请
    METHOD FOR TRANSMITTING DATA BY APPLYING PRECODING MATRIX IN AN OPEN LOOP MIMO SYSTEM 失效
    通过在开环MIMO系统中应用预编码矩阵来发送数据的方法

    公开(公告)号：US20120063438A1

    公开(公告)日：2012-03-15

    申请号：US13319621

    申请日：2010-05-26

    申请人： Byeong Woo Kang ,  Dong Wook Roh ,  Dae Won Lee ,  Yu Jin Noh ,  Bong Hoe Kim ,  Joon Kul Ahn

    发明人： Byeong Woo Kang ,  Dong Wook Roh ,  Dae Won Lee ,  Yu Jin Noh ,  Bong Hoe Kim ,  Joon Kul Ahn

    IPC分类号： H04W92/00

    CPC分类号： H04B7/0434

    摘要： A method for transmitting data by applying a precoding matrix in an open-loop multiple input multiple output (MIMO) system is disclosed. The method comprises selecting a precoding matrix and applying the selected precoding matrix to data during initial transmission; selecting a precoding matrix and applying the selected precoding matrix to data to be retransmitted; and retransmitting the data to which the precoding matrix is applied, wherein an index of the precoding matrix applied to the data is determined based on the times of current retransmission times of the data and index of the precoding matrix applied during initial transmission of the data.

    摘要翻译： 公开了一种通过在开环多输入多输出（MIMO）系统中应用预编码矩阵来发送数据的方法。 该方法包括：选择预编码矩阵，并在初始传输期间将所选择的预编码矩阵应用于数据; 选择预编码矩阵并将所选择的预编码矩阵应用于要重传的数据; 并且重新发送应用了预编码矩阵的数据，其中，基于数据的当前重传次数和在数据的初始发送期间应用的预编码矩阵的索引来确定应用于数据的预编码矩阵的索引。

    METHOD WHEREBY A CHANNEL QUALITY INDICATOR IS FED BACK BY A TERMINAL IN A MULTIPLE-ANTENNA WIRELESS COMMUNICATION SYSTEM, AND A DEVICE THEREFOR
    38.
    发明申请
    METHOD WHEREBY A CHANNEL QUALITY INDICATOR IS FED BACK BY A TERMINAL IN A MULTIPLE-ANTENNA WIRELESS COMMUNICATION SYSTEM, AND A DEVICE THEREFOR 有权
    一种通道质量指示器由多个天线无线通信系统中的终端返回的方法及其设备

    公开(公告)号：US20110243026A1

    公开(公告)日：2011-10-06

    申请号：US13139484

    申请日：2010-09-27

    申请人： Bong Hoe Kim ,  Dong Wook Roh ,  Byeong Woo Kang ,  Dae Won Lee ,  Yu Jin Noh ,  Ki Jun Kim ,  Joon Kui Ahn

    发明人： Bong Hoe Kim ,  Dong Wook Roh ,  Byeong Woo Kang ,  Dae Won Lee ,  Yu Jin Noh ,  Ki Jun Kim ,  Joon Kui Ahn

    IPC分类号： H04W24/10

    CPC分类号： H04B7/0697 ,  H04B7/0486 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0689

    摘要： Disclosed is a method whereby a channel quality indicator is fed back by a terminal in a multiple-antenna wireless communication system. More specifically, the method comprises the steps of: receiving reference signals corresponding to a plurality of data streams from a base station; using the reference signals to calculate a channel quality indicator; and transmitting the calculated channel quality indicator to the base station; and, in the step in which the channel quality indicator is calculated, the channel quality indicator is calculated under the assumption that at least one of the reference signals has been transmitted using wither the spatial-multiplexing technique or the transmit diversity technique, depending on the feedback setting of the terminal.

    摘要翻译： 公开了一种在多天线无线通信系统中由终端反馈信道质量指示符的方法。 更具体地说，该方法包括以下步骤：从基站接收与多个数据流对应的参考信号; 使用参考信号来计算信道质量指标; 以及将所计算的信道质量指示符发送到所述基站; 并且在计算信道质量指示符的步骤中，在假设已经使用空间多路复用技术或发射分集技术发送了至少一个参考信号的情况下，根据所述信道质量指示符来计算信道质量指示符 终端的反馈设置。

    METHOD FOR TRANSMITTING AND RECEIVING DOWNLINK REFERENCE SIGNALS IN A WIRELESS COMMUNICATION SYSTEM HAVING MULTIPLE ANTENNAS
    39.
    发明申请
    METHOD FOR TRANSMITTING AND RECEIVING DOWNLINK REFERENCE SIGNALS IN A WIRELESS COMMUNICATION SYSTEM HAVING MULTIPLE ANTENNAS 有权
    在具有多个天线的无线通信系统中发送和接收下行链路参考信号的方法

    公开(公告)号：US20110235730A1

    公开(公告)日：2011-09-29

    申请号：US13132596

    申请日：2009-12-03

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

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

    IPC分类号： H04W72/00

    CPC分类号： H04B7/0617 ,  H04L5/0048 ,  H04W52/34

    摘要： A method for transmitting and receiving downlink Reference Signals (RSs) in a wireless communication system using multiple antennas is disclosed. The downlink RS transmission method includes transmitting a first Orthogonal Frequency Division Multiplexing (OFDM) symbol in which RSs for a plurality of antenna port of first group are allocated in a predetermined order along a frequency axis, RSs for a plurality of antenna port of second group are allocated in a predetermined order along the frequency axis, and the RSs for the plurality of antenna port of first group are multiplexed in Code Division Multiplexing (CDM) with the RSs for the plurality of antenna port of second group by pairing each of the plurality of antenna port of first group with one of the plurality of antenna port of second group, and transmitting a second OFDM symbol in which the RSs for the plurality of antenna port of first group and the RSs for the plurality of antenna port of second group are positioned in an RS pattern being a frequency-domain shift of an RS pattern of the first OFDM symbol.

    摘要翻译： 公开了一种在使用多个天线的无线通信系统中发送和接收下行链路参考信号（RS）的方法。 下行链路RS传输方法包括发送第一正交频分复用（OFDM）符号，其中沿着频率轴以预定顺序分配第一组的多个天线端口的RS，第二组的多个天线端口的RS 沿着频率轴以预定顺序被分配，并且第一组的多个天线端口的RS被多路复用在码分复用（CDM）中，与第二组的多个天线端口的RS通过配对多个 第一组的天线端口与第二组的多个天线端口之一的天线端口相连接，并且发送第二组OFDM符号，其中第一组的多个天线端口的RS和第二组的多个天线端口的RS是 位于RS模式中的是第一OFDM符号的RS模式的频域偏移。