利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

485 条记录 (耗时 0.06 秒)

    Method for transmitting and receiving downlink reference signals in a wireless communication system having multiple antennas
    2.
    发明授权
    Method for transmitting and receiving downlink reference signals in a wireless communication system having multiple antennas 有权
    用于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：US08891650B2

    公开(公告)日：2014-11-18

    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： H04B7/02 ,  H04L1/02 ,  H04B7/06 ,  H04L5/00 ,  H04W52/34

    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。

    METHOD FOR TRANSMITTING AND RECEIVING DOWNLINK REFERENCE SIGNALS IN A WIRELESS COMMUNICATION SYSTEM HAVING MULTIPLE ANTENNAS
    3.
    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。

    Reference signal transmission method for downlink multiple input multiple output system
    5.
    发明授权
    Reference signal transmission method for downlink multiple input multiple output system 失效
    下行多输入多输出系统的参考信号传输方法

    公开(公告)号：US08582486B2

    公开(公告)日：2013-11-12

    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： H04H20/71

    CPC分类号： H04L5/0051

    摘要： A method for efficiently providing data and a reference signal (RS) when antennas are added to an existing system is provided. The method includes transmitting an RS in a downlink MIMO system that supports a first user equipment (UE) and a second UE, the first UE recognizing four predetermined transmitting antennas among eight transmitting antennas and the second UE recognizing the eight transmitting antennas, generating a subframe that can be recognized by both the first UE and the second UE and transmitting the generated subframe to the first UE and the second UE, where the first UE and the second UE recognize all orthogonal frequency division multiplexing (OFDM) symbols of the subframe.

    摘要翻译： 提供了当将天线添加到现有系统时有效地提供数据和参考信号（RS）的方法。 该方法包括在支持第一用户设备（UE）和第二UE的下行链路MIMO系统中发送RS，第一UE识别八个发送天线中的四个预定发送天线，第二UE识别8个发送天线，生成子帧 可以由第一UE和第二UE识别，并将生成的子帧发送到第一UE和第二UE，其中第一UE和第二UE识别子帧的所有正交频分复用（OFDM）符号。

    STBC based transmission method considering number of symbols in slot
    7.
    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 whereby a channel quality indicator is fed back by a terminal in a multiple-antenna wireless communication system, and a device therefor
    10.
    发明授权
    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
    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及其装置

    公开(公告)号：US08634319B2

    公开(公告)日：2014-01-21

    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： H04L12/26

    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。