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    Method for transmitting downlink reference signals in a multi-antenna wireless communication system
    22.
    发明授权
    Method for transmitting downlink reference signals in a multi-antenna wireless communication system 有权
    一种用于在多天线无线通信系统中发送下行链路参考信号的方法

    公开(公告)号：US08400994B2

    公开(公告)日：2013-03-19

    申请号：US12608704

    申请日：2009-10-29

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

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

    IPC分类号： H04B7/216

    CPC分类号： H04B7/0874 ,  H04B7/0434 ,  H04B7/0691

    摘要： A method for transmitting downlink reference signal in a multi-antenna wireless communication system is disclosed. The method includes allocating RSs for a first antenna group to a subframe having a predetermined area with different access levels for user equipments having different access capabilities, pairing RSs for a second antenna group with RSs for the first antenna group, allocating the paired RSs to the predetermined area of the subframe in code division multiplexing, and transmitting the subframe on the downlink.

    摘要翻译： 公开了一种用于在多天线无线通信系统中发送下行链路参考信号的方法。 该方法包括将第一天线组的RS分配给具有对具有不同接入能力的用户设备具有不同接入电平的预定区域的子帧，将第二天线组的RS与第一天线组的RS配对，将配对RS分配给 在码分复用中子帧的预定区域，并在下行链路上发送子帧。

    METHOD FOR TRANSMITTING SOUNDING SIGNAL IN WIRELESS COMMUNICATION SYSTEM
    23.
    发明申请
    METHOD FOR TRANSMITTING SOUNDING SIGNAL IN WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统中发送信号的方法

    公开(公告)号：US20120327914A1

    公开(公告)日：2012-12-27

    申请号：US13580097

    申请日：2010-11-29

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

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

    IPC分类号： H04W72/04

    CPC分类号： H04W56/00 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/16 ,  H04W8/005 ,  H04W8/186 ,  H04W48/16 ,  H04W84/12

    摘要： Disclosed is a method for allowing a station to transmit a sounding signal in a multiple-antenna wireless communication system, the method including receiving a group defining information about a group to which the station belongs from an access point (AP); determining a transmission time taken in transmitting a sounding signal by the respective stations, which belong to the group, on the basis of the group defining information; and transmitting a sounding signal to the AP in accordance with the transmission time and preset transmission order when receiving a sounding request signal from the AP.

    摘要翻译： 公开了一种允许站在多天线无线通信系统中发送探测信号的方法，所述方法包括从接入点（AP）接收定义关于所述站所属的组的信息的组; 基于组定义信息，确定由属于该组的各个站发送探测信号所用的传输时间; 并且当从AP接收到探测请求信号时，根据传输时间和预设的传输顺序，向AP发送探测信号。

    INTERFERENCE AVOIDANCE METHOD AND APPARATUS FOR SUPPORTING SAME IN A WIRELESS LAN SYSTEM
    25.
    发明申请
    INTERFERENCE AVOIDANCE METHOD AND APPARATUS FOR SUPPORTING SAME IN A WIRELESS LAN SYSTEM 有权
    用于在无线LAN系统中支持相同的干扰避免方法和装置

    公开(公告)号：US20120275332A1

    公开(公告)日：2012-11-01

    申请号：US13517951

    申请日：2010-11-04

    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： H04B15/00 ,  H04W24/02 ,  H04W84/12

    CPC分类号： H04B7/0452 ,  H04L5/0023 ,  H04L5/0091 ,  H04L25/0204 ,  H04L25/0224 ,  H04W16/28

    摘要： An interference avoidance method performed by an access point (AP) in a wireless local area network (WLAN) system is provided. The method includes: transmitting a training request (TRQ) message for requesting transmission of a sounding frame to a first station which is a target of multi-user multiple input multiple output (MU-MIMO) transmission and a second station which receives data through a direct link during the MU-MIMO transmission; receiving first and second sounding frames respectively transmitted by the first and second stations in response to the TRQ message; estimating a channel by using the first sound frame to determine a beam-forming vector to be used for the MU-MIMO transmission; and performing the MU-MIMO transmission for MU-MIMO transmission target stations including the first station, wherein the beam-forming vector is determined such that the MU-MIMO transmission has a minimum effect on the second station by considering channel information between the AP and the second station and acquired on the basis of the second sounding frame received from the second station.

    摘要翻译： 提供了一种由无线局域网（WLAN）系统中的接入点（AP）执行的干扰避免方法。 该方法包括：向作为多用户多输入多输出（MU-MIMO）传输的目标的第一站发送用于请求发送探测帧的训练请求（TRQ）消息，以及通过一个接收数据的第二站 在MU-MIMO传输期间的直接链路; 接收响应于所述TRQ消息由所述第一和第二站分别发送的第一和第二探测帧; 通过使用第一声音帧来估计要用于MU-MIMO传输的波束形成向量的信道; 以及对包括第一站的MU-MIMO传输目标站执行MU-MIMO传输，其中确定波束形成向量，使得MU-MIMO传输对第二站具有最小影响，考虑AP与AP之间的信道信息 第二站，并且基于从第二站接收的第二探测帧获取。

    METHOD FOR INDICATING PRECODING MATRIX INDICATOR IN UPLINK MIMO SYSTEM WITH BASED ON SC-FDMA
    27.
    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
    28.
    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
    29.
    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
    30.
    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。