Method for allocating reference signals in MIMO system
    23.
    发明授权
    Method for 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:US08400907B2

    公开(公告)日:2013-03-19

    申请号:US13439828

    申请日:2012-04-04

    IPC分类号: H04J11/00

    摘要: A user equipment (UE) receiving a plurality of reference signals in a wireless multiple-input multiple-output (MIMO) communication system includes a transceiver configured for receiving the plurality of reference signals for multiple antennas in a sub-frame, the sub-frame including a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols in a time domain over a plurality of sub-carriers in a frequency domain. A first array is repeated in the frequency domain on a first OFDM symbol of the sub-frame, a second array is repeated in the frequency domain on a second OFDM symbol of the sub-frame and a third array is repeated in the frequency domain on a third OFDM symbol of the sub-frame, and each of the first, second and third arrays consists of six contiguous symbols in the frequency domain.

    摘要翻译: 在无线多输入多输出(MIMO)通信系统中接收多个参考信号的用户设备(UE)包括:收发器,被配置为在子帧中接收多个天线的多个参考信号,子帧 包括在频域中的多个子载波上的时域中的多个正交频分复用(OFDM)符号。 在子帧的第一OFDM符号上的频域中重复第一阵列,在子帧的第二OFDM符号上在频域中重复第二阵列,并且在频域上重复第三阵列 子帧的第三OFDM符号,并且第一,第二和第三阵列中的每一个由频域中的六个相邻符号组成。

    Uplink precoding method in 4-Tx system
    24.
    发明授权
    Uplink precoding method in 4-Tx system 有权
    4-Tx系统中的上行预编码方法

    公开(公告)号:US08391393B2

    公开(公告)日:2013-03-05

    申请号:US12715073

    申请日:2010-03-01

    IPC分类号: H04B7/02

    摘要: A method for a user equipment to precode and transmit an uplink signal efficiently in a 4-antenna system and a method for a base station to receive the transmitted signal efficiently are disclosed. Four antennas of a user equipment can be grouped by a 2-antenna unit. In consideration of this antenna group, it is able to perform precoding using antenna selection/DFT matrix of the antenna group unit. Moreover, a rank-3 codebook can be configured to include a precoding matrix of a type in consideration of power balance per antenna and a precoding matrix including one non-zero component only in one row for maintaining a good CM property.

    摘要翻译: 公开了一种用于在4天线系统中有效地预编码和发送上行链路信号的用户设备的方法以及用于基站有效地接收所发送的信号的方法。 用户设备的四个天线可以通过2天线单元分组。 考虑到该天线组,能够使用天线组单元的天线选择/ DFT矩阵进行预编码。 此外,等级3码本可以被配置为包括考虑每个天线的功率平衡的类型的预编码矩阵和仅在一行中包括一个非零分量的预编码矩阵以维持良好的CM属性。

    Method and Apparatus for Transmitting/Receiving Data in a Wireless Communication System
    25.
    发明申请
    Method and Apparatus for Transmitting/Receiving Data in a Wireless Communication System 有权
    用于在无线通信系统中发送/接收数据的方法和装置

    公开(公告)号:US20120039292A1

    公开(公告)日:2012-02-16

    申请号:US13266833

    申请日:2010-04-27

    IPC分类号: H04W72/04 H04W4/00

    摘要: The present invention relates to a method and apparatus for transmitting/receiving data in a wireless communication system. According to one aspect of the present invention, a data receiving method is provided wherein a mobile station in a wireless communication system uses a frame including a first subframe in which a physical downlink shared channel (hereinafter, referred to as “PDSCH”) includes a first cyclic prefix (hereinafter, referred to as “CP”) and a second subframe in which the PDSCH includes a second CP, wherein the data receiving method comprises a step in which the mobile station receives information on the length of the first CP from a base station, receives data from the base station through the first subframe, and removes the CP of the data using the information on the length of the first CP. The first CP and the second CP have different lengths.

    摘要翻译: 本发明涉及一种在无线通信系统中发送/接收数据的方法和装置。 根据本发明的一个方面,提供一种数据接收方法,其中无线通信系统中的移动台使用包括物理下行链路共享信道(以下称为“PDSCH”)的第一子帧的帧包括 第一循环前缀(以下称为“CP”)和PDSCH包括第二CP的第二子帧,其中,数据接收方法包括以下步骤:移动站从第一CP接收关于第一CP的长度的信息 基站通过第一子帧从基站接收数据,并且使用关于第一CP的长度的信息来移除数据的CP。 第一个CP和第二个CP具有不同的长度。

    Rank feedback method for multiple-input multiple-output transmission
    28.
    发明授权
    Rank feedback method for multiple-input multiple-output transmission 有权
    多输入多输出传输的秩反馈方法

    公开(公告)号:US08045508B2

    公开(公告)日:2011-10-25

    申请号:US12371565

    申请日:2009-02-13

    IPC分类号: H04W40/00

    摘要: A method for transmitting a plurality of control information through a PUCCH or a PUSCH is disclosed. The method includes transmitting first control information, and transmitting second control information. The transmission of the first control information and the transmission of the second control information are performed in units of one subframe and are performed once per predetermined period, respectively. In a subframe in which the transmission of the second control information is to be simultaneously performed with the transmission of the first control information, the second control information is excluded for transmission or the first and the second information are simultaneously transmitted, according to the configuration of a closed-loop system or an open-loop system.

    摘要翻译: 公开了一种通过PUCCH或PUSCH发送多个控制信息的方法。 该方法包括发送第一控制信息和发送第二控制信息。 第一控制信息的传输和第二控制信息的发送分别以一个子帧为单位进行,并且每预定时间段执行一次。 在通过发送第一控制信息同时执行第二控制信息的传输的子帧中,根据第一控制信息的配置,排除第二控制信息以发送或者第一和第二信息被同时发送 闭环系统或开环系统。

    DATA TRANSMISSION APPARATUS USING MULTIPLE ANTENNAS AND METHOD THEREOF
    29.
    发明申请
    DATA TRANSMISSION APPARATUS USING MULTIPLE ANTENNAS AND METHOD THEREOF 失效
    使用多个天线的数据传输装置及其方法

    公开(公告)号:US20110110307A1

    公开(公告)日:2011-05-12

    申请号:US13000546

    申请日:2009-06-05

    IPC分类号: H04W40/00

    摘要: An apparatus for transmitting data includes a data processing unit for generating a data symbol by channel-coding and constellation-mapping on information bits, a Discrete Fourier Transform (DFT) unit for generating a frequency domain symbol by performing DFT on the data symbols, a Multiple-Input Multiple-Output (MIMO) processing unit for generating a first transmission symbol by applying a first transmission diversity scheme to the frequency domain symbol and generating a second transmission symbol by applying a second transmission diversity scheme to the first transmission symbol, a Single Carrier-Frequency Division Multiple Access (SC-FDMA) modulation unit for generating an SC-FDMA symbol by performing Inverse Fast Fourier Transform (IFFT) on the first transmission symbol and the second transmission symbol, and a plurality of transmission antennas for sending the SC-FDMA symbol.

    摘要翻译: 一种用于发送数据的装置包括:数据处理单元,用于通过对信息比特的信道编码和星座映射来生成数据符号;离散傅立叶变换(DFT)单元,用于通过对数据符号执行DFT来产生频域符号; 多输入多输出(MIMO)处理单元,用于通过将第一传输分集方案应用于频域符号并通过向第一传输符号应用第二传输分集方案来生成第二传输符号来产生第一传输符号; 用于通过在第一传输符号和第二传输符号上执行快速傅立叶逆变换(IFFT)来产生SC-FDMA符号的载波频分多址(SC-FDMA)调制单元和用于发送SC的多个发送天线 -FDMA符号。

    METHOD OF TRANSMITTING PRECODING INFORMATION IN MULTIPLE ANTENNA SYSTEM
    30.
    发明申请
    METHOD OF TRANSMITTING PRECODING INFORMATION IN MULTIPLE ANTENNA SYSTEM 有权
    在多天线系统中发送预测信息的方法

    公开(公告)号:US20100310000A1

    公开(公告)日:2010-12-09

    申请号:US12864656

    申请日:2009-01-29

    IPC分类号: H04L27/28 H04L27/00

    摘要: A method of transmitting precoding information in a multiple antenna system includes selecting M subbands from a plurality of subbands constituting a whole frequency band in a descending order of a channel quality indicator (CQI), where M is an integer satisfying M>0, and transmitting a first precoding matrix indicator (PMI) for the M subbands and a second PMI for a remaining band, wherein the first PMI is a PMI of a codebook selected from a first codebook set including a plurality of codebooks and the second PMI is a PMI of a codebook selected from a second codebook set including a part of the plurality of codebooks of the first codebook set. Accordingly, precoding information can be effectively transmitted by separately preparing a codebook for a best band and a codebook for a non-selected band.

    摘要翻译: 在多天线系统中发送预编码信息的方法包括:从信道质量指示符(CQI)的降序中选择构成整个频带的多个子带的M个子带,其中,M是满足M> 0的整数,并且发送 用于所述M个子带的第一预编码矩阵指示符(PMI)和用于剩余频带的第二PMI,其中所述第一PMI是从包括多个码本的第一码本集中选择的码本的PMI,并且所述第二PMI是 从包括第一码本集合的多个码本的一部分的第二码本集中选择的码本。 因此,可以通过单独准备用于最佳频带的码本和非选择频带的码本来有效地发送预编码信息。