Method and apparatus for transmitting control information in wireless communication system

    公开(公告)号:US08917683B2

    公开(公告)日:2014-12-23

    申请号:US13583577

    申请日:2011-04-13

    IPC分类号: H04W4/00 H04L5/00

    摘要: The present invention relates to a wireless communication system. The present invention relates to a method for transmitting ACK/NACK in a wireless communication system in which carrier aggregation is set, and an apparatus therefor. Specifically, the present invention relates to an ACK/NACK transmission method and an apparatus therefor, the method comprising the steps of: receiving information on a plurality of physical uplink control channel (PUCCH) resources via upper layer signaling; receiving a transmit power control (TPC) field on a secondary carrier through a physical downlink control channel (PDCCH); receiving data indicated by the PDCCH; and transmitting ACK/NACK for the data, wherein the ACK/NACK is transmitted using a PUCCH resource which is indicated by the value of the TPC field among the plurality of PUCCH resources.

    Method for transmitting data in multiple antenna system
    72.
    发明授权
    Method for transmitting data in multiple antenna system 有权
    用于在多天线系统中传输数据的方法

    公开(公告)号:US08867332B2

    公开(公告)日:2014-10-21

    申请号:US13201552

    申请日:2010-02-16

    IPC分类号: H04J11/00 H04B7/06 H04L5/00

    CPC分类号: H04B7/0613 H04L5/0046

    摘要: An apparatus for data transmission in a multi-antenna system is provided. The apparatus includes: a modulation mapper for modulating codewords into modulation symbols that express a position on a signal constellation; a layer permutator for mapping the modulation symbols to different layers; a transform precoder for generating a discrete Fourier transform (DFT) symbol of a frequency domain by performing DFT on the modulation symbol mapped to the layer; a resource element mapper for mapping the DFT symbol to a physical resource element; and a signal generator for generating a single carrier-frequency division multiple access (SC-FDMA) signal from the DFT symbol mapped to the resource element, wherein a modulation order of the modulation symbols is determined depending on the layer mapped by the layer permutator.

    摘要翻译: 提供了一种用于多天线系统中的数据传输的装置。 该装置包括:调制映射器,用于将码字调制成表示信号星座上的位置的调制符号; 用于将调制符号映射到不同层的层置换器; 变换预编码器,用于通过对映射到该层的调制符号执行DFT来产生频域的离散付里叶变换(DFT)符号; 用于将DFT符号映射到物理资源元素的资源元素映射器; 以及信号发生器,用于从映射到资源元素的DFT符号生成单载波频分多址(SC-FDMA)信号,其中根据由层置换器映射的层确定调制符号的调制阶数。

    Method for allocating reference signals in MIMO system
    75.
    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 2-Tx system
    76.
    发明授权
    Uplink precoding method in 2-Tx system 有权
    2-Tx系统中的上行预编码方法

    公开(公告)号:US08325595B2

    公开(公告)日:2012-12-04

    申请号:US12704467

    申请日:2010-02-11

    IPC分类号: H04J11/00

    摘要: A method for a user equipment to precode and transmit an uplink signal efficiently in a 2-antenna system and a method for a base station to receive the transmitted signal efficiently are disclosed. A 2-antenna codebook includes 4 DFT matrixes and 2 antenna selection matrixes for a rank 1 and one identity matrix for a rank 2 as precoding matrixes. For efficient uplink signal transmission/reception, the present invention provides signal transceiving technology between user equipment and base station using the 2-antenna codebook.

    摘要翻译: 公开了一种用于在2天线系统中有效地对上行链路信号进行预编码和发送的方法,以及用于基站有效地接收所发送的信号的方法。 2天线码本包括4个DFT矩阵和2个用于等级1的天线选择矩阵,一个用于等级2的单位矩阵作为预编码矩阵。 为了有效的上行链路信号发送/接收,本发明使用2天线码本在用户设备和基站之间提供信号收发技术。

    Method For Transmitting/Receiving A Comp Reference Singnal
    79.
    发明申请
    Method For Transmitting/Receiving A Comp Reference Singnal 有权
    发送/接收Comp参考文献的方法

    公开(公告)号:US20120113951A1

    公开(公告)日:2012-05-10

    申请号:US13386384

    申请日:2010-07-26

    IPC分类号: H04W72/04

    摘要: Disclosed is a method for transmitting a CoMP reference signal for accurate channel estimation. The CoMP reference signal to be transmitted to a terminal which performs a CoMP operation in a multi-cell environment is a cell-specific reference signal or a CoMP-zone-specific reference signal. A method for transmitting the cell-specific reference signal uses an ID of a CoMP set constituted by cells that perform a CoMP operation, or does not apply a frequency shift value while using the ID of a relevant cell, or uses an ID of a serving cell or a frequency shift value of the serving cell. The cell-specific reference signal is transmitted using a preset specific resource region. A method for transmitting the CoMP-zone-specific reference signal is configured such that the pattern of the sequence of CoMP reference signals varies in each of the CoMP zones, and the pattern can be set in advance. In addition, the reference signal is multiplexed and transmitted using an orthogonal code resource in the event that reference signal is transmitted to a plurality of terminals using the same CoMP zone.

    摘要翻译: 公开了一种用于发送用于准确信道估计的CoMP参考信号的方法。 要发送到在多小区环境中执行CoMP操作的终端的CoMP参考信号是小区特定参考信号或CoMP特定区域参考信号。 用于发送小区特定参考信号的方法使用由执行CoMP操作的小区构成的CoMP集合的ID,或者在使用相关小区的ID时不应用频移值,或者使用服务的ID 小区或服务小区的频移值。 使用预设的特定资源区域发送小区特定参考信号。 配置用于发送CoMP区专用参考信号的方法被配置为使得CoMP参考信号序列的模式在每个CoMP区域中变化,并且可以预先设置模式。 此外,在使用相同的CoMP区域将参考信号发送到多个终端的情况下,使用正交码资源来复用和发送参考信号。