Method of transmitting feedback information for precoding and precoding method
    11.
    发明授权
    Method of transmitting feedback information for precoding and precoding method 有权
    发送预编码和预编码方法的反馈信息的方法

    公开(公告)号:US08599946B2

    公开(公告)日:2013-12-03

    申请号:US12439955

    申请日:2007-09-05

    IPC分类号: H04B7/02

    摘要: Precoding methods and method for performing precoding and methods of transmitting feedback information for precoding or transmitting a signal using a multi-codebook and method of transceiving precoding information in a multi-antenna system, where a signal transmitting method in a multi-antenna system, and more particularly, a method of transceiving precoding matrix information for a multi-input multi-output (MIMO) system is disclosed. The present invention proposes a method of performing communications using an expanded unitary matrix generated from shifting a phase of a base unitary matrix. The present invention is applicable to single user MIMO, multi-user MIMO, beam forming, etc.

    摘要翻译: 用于执行预编码的预编码方法和方法以及使用多码本中的预编码或发送信号的反馈信息的发送方法和在多天线系统中收发预编码信息的方法,其中多天线系统中的信号发送方法和 更具体地,公开了一种用于多输入多输出(MIMO)系统的收发预编码矩阵信息的方法。 本发明提出了一种使用从移动基本酉矩阵的相位产生的扩展酉矩阵来执行通信的方法。 本发明适用于单用户MIMO,多用户MIMO,波束形成等。

    METHOD OF ALLOCATING REFERENCE SIGNALS IN MIMO SYSTEM
    12.
    发明申请
    METHOD OF ALLOCATING REFERENCE SIGNALS IN MIMO SYSTEM 有权
    MIMO系统中分配参考信号的方法

    公开(公告)号:US20100103949A1

    公开(公告)日:2010-04-29

    申请号:US12445073

    申请日:2007-10-11

    IPC分类号: H04J3/22 H04L27/28

    摘要: There is provided a method of allocating reference signals in a multiple-input multiple-output (MIMO) system. The method includes allocating a first reference signal, a second reference signal and a third reference signal in a first OFDM symbol so that the first reference signal, the second reference signal and the third reference signal do not overlap with each other and allocating the first reference signal, the second reference signal and a fourth reference signal in a second OFDM symbol so that the first reference signal, the second reference signal and the fourth reference signal do not overlap with each other. The first reference signal and the second signal are allocated in a regular intervals in a single OFDM symbol.

    摘要翻译: 提供了一种在多输入多输出(MIMO)系统中分配参考信号的方法。 该方法包括在第一OFDM符号中分配第一参考信号,第二参考信号和第三参考信号,使得第一参考信号,第二参考信号和第三参考信号彼此不重叠并且分配第一参考 信号,第二参考信号和第二OFDM符号中的第四参考信号,使得第一参考信号,第二参考信号和第四参考信号彼此不重叠。 在单个OFDM符号中以规则的间隔分配第一参考信号和第二信号。

    Method of allocating reference signals in MIMO system
    14.
    发明授权
    Method of allocating reference signals in MIMO system 有权
    MIMO系统中分配参考信号的方法

    公开(公告)号:US07929417B2

    公开(公告)日:2011-04-19

    申请号:US12445073

    申请日:2007-10-11

    IPC分类号: H04J11/00

    摘要: There is provided a method of allocating reference signals in a multiple-input multiple-output (MIMO) system. The method includes allocating a first reference signal, a second reference signal and a third reference signal in a first OFDM symbol so that the first reference signal, the second reference signal and the third reference signal do not overlap with each other and allocating the first reference signal, the second reference signal and a fourth reference signal in a second OFDM symbol so that the first reference signal, the second reference signal and the fourth reference signal do not overlap with each other. The first reference signal and the second signal are allocated in a regular interval in a single OFDM symbol.

    摘要翻译: 提供了一种在多输入多输出(MIMO)系统中分配参考信号的方法。 该方法包括在第一OFDM符号中分配第一参考信号,第二参考信号和第三参考信号,使得第一参考信号,第二参考信号和第三参考信号彼此不重叠并且分配第一参考 信号,第二参考信号和第二OFDM符号中的第四参考信号,使得第一参考信号,第二参考信号和第四参考信号彼此不重叠。 在单个OFDM符号中以规则的间隔分配第一参考信号和第二信号。

    METHOD OF TRANSMITTING OF DATA AND CONFIGURING A CODEBOOK IN MULTI ANTENNA SYSTEM
    17.
    发明申请
    METHOD OF TRANSMITTING OF DATA AND CONFIGURING A CODEBOOK IN MULTI ANTENNA SYSTEM 失效
    数据传输方法和配置多天线系统中的代码

    公开(公告)号:US20110051834A1

    公开(公告)日:2011-03-03

    申请号:US12666777

    申请日:2008-06-24

    IPC分类号: H04L1/02

    CPC分类号: H04W52/346

    摘要: Methods of controlling a transmission power and configuring a codebook in a multi-antenna system to solve a transmission power unbalance between antennas are disclosed. The method of transmitting data in a multi-antenna system includes (A) transmitting one or more pilot signals within a first symbol region through a first antenna unit, and (B) transmitting one or more pilot signals within a second symbol region through a second antenna unit, wherein data within the first symbol region is transmitted through the second antenna unit, and data within the second symbol region is transmitted through the first antenna unit. According to the present invention, since a transmission power unbalance between antennas is solved, a transmission power can be uniformly assigned to each antenna and channel estimation can be easily performed. Moreover, a power amplifier having a uniform amplification range can be used and designed.

    摘要翻译: 公开了在多天线系统中控制发射功率和配置码本以解决天线之间的发射功率不平衡的方法。 在多天线系统中发送数据的方法包括:(A)通过第一天线单元在第一符号区域内传输一个或多个导频信号,以及(B)通过第二天线单元在第二符号区域内传输一个或多个导频信号 天线单元,其中通过第二天线单元发送第一符号区域内的数据,并且通过第一天线单元发送第二符号区域内的数据。 根据本发明,由于天线之间的发送功率不平衡被解决,所以可以将发送功率均匀地分配给每个天线,并且可以容易地进行信道估计。 此外,可以使用和设计具有均匀放大范围的功率放大器。

    METHOD OF TRANSMITTING CHANNEL QUALITY INDICATOR IN WIRELESS COMUNICATION SYSTEM
    18.
    发明申请
    METHOD OF TRANSMITTING CHANNEL QUALITY INDICATOR IN WIRELESS COMUNICATION SYSTEM 有权
    在无线通信系统中发送信道质量指标的方法

    公开(公告)号:US20100110914A1

    公开(公告)日:2010-05-06

    申请号:US12448846

    申请日:2008-03-21

    IPC分类号: H04L12/26

    摘要: A method of transmitting a channel quality indicator (CQI) includes obtaining CQIs for each of a plurality of sub-bands, a sub-band comprising a plurality of sub-carriers, dividing the plurality of sub-bands into a plurality of layers according to a CQI of a sub-band, a layer comprising at least one sub-band, obtaining a representative value of a representative layer, the representative layer including a sub-band having maximum CQI and transmitting the representative value of the representative layer. Signaling overhead due to CQI feedback can be reduced.

    摘要翻译: 发送信道质量指示符(CQI)的方法包括获得针对多个子带中的每一个的CQI,包括多个子载波的子带,根据所述多个子载波将所述多个子带划分成多个层 子带的CQI,包含至少一个子带的层,获得代表层的代表值,所述代表层包括具有最大CQI的子带,并发送代表层的代表值。 可以减少由CQI反馈引起的信令开销。

    Collaborative MIMO using sounding channel in multi-cell environment
    19.
    发明授权
    Collaborative MIMO using sounding channel in multi-cell environment 有权
    在多小区环境中使用探测信道的协作MIMO

    公开(公告)号:US08761092B2

    公开(公告)日:2014-06-24

    申请号:US12453562

    申请日:2009-05-14

    IPC分类号: H04J3/00 H04W4/00

    摘要: A collaborative MIMO method using a sounding channel in a multi-cell environment is disclosed. The method includes acquiring, by a first base station providing a service for a first cell, first CSI of a first downlink channel between the first base station and a mobile station, transmitting, to a second base station, a signal including information requesting that the second base station providing a service for a second cell acquire second CSI of a second downlink channel between the second base station and the mobile station, and acquiring, by the second base station, the second CSI. The mobile station is served by the first base station.

    摘要翻译: 公开了一种在多小区环境中使用探测信道的协作MIMO方法。 该方法包括:由第一基站提供第一小区的业务的第一基站获取第一基站与移动站之间的第一下行链路信道的第一CSI,向第二基站发送包括请求信令的信息的信号 为第二小区提供服务的第二基站在第二基站和移动站之间获取第二下行链路信道的第二CSI,并且由第二基站获取第二CSI。 移动台由第一基站服务。

    Method for transmitting and receiving data in a cooperative multiple-input multiple-output mobile communication system
    20.
    发明授权
    Method for transmitting and receiving data in a cooperative multiple-input multiple-output mobile communication system 有权
    用于在协作多输入多输出移动通信系统中发送和接收数据的方法

    公开(公告)号:US08731480B2

    公开(公告)日:2014-05-20

    申请号:US12922819

    申请日:2009-05-07

    IPC分类号: H04B7/00

    摘要: A method for transmitting and receiving data in a cooperative Multiple-Input Multiple-Output (MIMO) mobile communication system is disclosed. The method includes selecting a transmission path for transmitting precoding-related feedback control information to one or more cooperative base stations operating in the cooperative MIMO mode, and transmitting the precoding-related feedback control information to the one or more cooperative base stations through the selected transmission path.

    摘要翻译: 公开了一种在协作多输入多输出(MIMO)移动通信系统中发送和接收数据的方法。 该方法包括:选择用于向与协作MIMO模式中工作的一个或多个协作基站发送预编码相关反馈控制信息的传输路径,以及通过所选择的传输将预编码相关反馈控制信息发送给一个或多个协作基站 路径。