METHOD FOR TRANSMITTING DATA IN MULTIPLE ANTENNA SYSTEM
    141.
    发明申请
    METHOD FOR TRANSMITTING DATA IN MULTIPLE ANTENNA SYSTEM 有权
    用于在多个天线系统中发送数据的方法

    公开(公告)号:US20110135033A1

    公开(公告)日:2011-06-09

    申请号:US13056635

    申请日:2009-07-29

    IPC分类号: H04J11/00 H04B1/02

    CPC分类号: H04B7/0413

    摘要: A method of sending data in a multiple antenna system includes the steps of generating a transmission signal by applying channel-dependent precoding to a first antenna cluster and a second antenna cluster, each comprising a plurality of antennas, wherein the channel-dependent precoding is performed by a precoding weight matrix in which a precoding weight for each of the antenna clusters has a block diagonal form and the precoding weight is represented by P×V for a number of transmission antennas P, included in each of the antenna clusters, and a number of layers V applied to each of the antenna clusters (P and V are an integer greater than 0) and sending the transmission signal.

    摘要翻译: 在多天线系统中发送数据的方法包括以下步骤:通过对第一天线簇和第二天线簇应用与频道相关的预编码来产生发射信号,每个天线簇包括多个天线,其中执行与频道相关的预编码 通过预编码权重矩阵,其中每个天线簇的预编码权重具有块对角线形式,并且对于包括在每个天线簇中的多个发射天线P,并且预编码权重由P×V表示,并且数字 的层V施加到每个天线簇(P和V是大于0的整数)并发送发送信号。

    METHOD FOR SETTING PRECODER IN OPEN LOOP MIMO SYSTEM
    142.
    发明申请
    METHOD FOR SETTING PRECODER IN OPEN LOOP MIMO SYSTEM 审中-公开
    用于在开环MIMO系统中设置预编码器的方法

    公开(公告)号:US20100278278A1

    公开(公告)日:2010-11-04

    申请号:US12770140

    申请日:2010-04-29

    IPC分类号: H04B7/02

    摘要: A feedback method of a user equipment in an open loop Multiple-Input Multiple-Output (MIMO) system is disclosed. The method includes, receiving one of a plurality of modes determined according to types of resources to be used for performing feedback from a base station, and selecting a precoding matrix from a codebook subset corresponding to the received mode, applying the selected precoding matrix, and transmitting feedback information. Different codebook subsets are configured with respect to the plurality of modes, and the codebook subset is configured by extracting a predetermined number of elements from a base codebook based on a predetermined criterion considering the characteristics of the modes.

    摘要翻译: 公开了一种开环多输入多输出(MIMO)系统中的用户设备的反馈方法。 该方法包括:接收根据要用于从基站执行反馈的资源类型确定的多个模式之一,以及从对应于接收模式的码本子集中选择预编码矩阵,应用所选择的预编码矩阵;以及 发送反馈信息。 针对多个模式配置不同的码本子集,并且通过考虑模式的特征,基于预定标准从基本码本中提取预定数量的元素来配置码本子集。

    Method for transmitting and receiving signals in open-loop spatial multiplexing mode
    143.
    发明申请
    Method for transmitting and receiving signals in open-loop spatial multiplexing mode 有权
    开环空间复用模式发送和接收信号的方法

    公开(公告)号:US20100166094A1

    公开(公告)日:2010-07-01

    申请号:US12382366

    申请日:2009-03-13

    IPC分类号: H04B7/02

    摘要: A method for transmitting and receiving signals in an open-loop spatial multiplexing transmission mode is described. If the number of transmit antennas is 2 and a rank is 2, a base station performs precoding according to a cyclic delay diversity scheme by a matrix in which a first matrix corresponding to an identity matrix, a second matrix corresponding to a diagonal matrix, and a third matrix corresponding to a unitary matrix are sequentially multiplied and transmits the precoded signals. This may be substantially the same as the case where the base station performs precoding using a matrix in which the second matrix corresponding to the diagonal matrix and the third matrix corresponding to the unitary matrix are multiplied and transmits the precoded signals. A user equipment estimates a transmission mode according to the received rank indicator and the number of transmit antennas and receives signals.

    摘要翻译: 描述了一种以开环空间复用传输模式发送和接收信号的方法。 如果发送天线的数量为2,秩为2,则基站根据循环延迟分集方案,通过对应于单位矩阵的第一矩阵,对应于对角矩阵的第二矩阵和 顺序地对应于酉矩阵的第三矩阵,并发送预编码的信号。 这可以与基站使用其中对应于对角矩阵的第二矩阵和与酉矩阵相对应的第三矩阵相乘并且发送预编码信号的矩阵来执行预编码的情况基本相同。 用户设备根据接收到的秩指示符和发射天线的数量来估计传输模式并接收信号。

    METHOD OF TRANSMITTING BROADCAST INFORMATION IN WIRELESS COMMUNICATION SYSTEM
    145.
    发明申请
    METHOD OF TRANSMITTING BROADCAST INFORMATION IN WIRELESS COMMUNICATION SYSTEM 审中-公开
    无线通信系统中广播信息的传输方法

    公开(公告)号:US20100124194A1

    公开(公告)日:2010-05-20

    申请号:US12450993

    申请日:2008-04-28

    IPC分类号: H04W40/00 H04W72/04

    摘要: A method of transmitting broadcast information in a wireless communication system includes transmitting broadcast information and receiving an ACK (Acknowledgement)/NACK (Not-Acknowledgement) signal on an uplink channel from at least one mobile station in a cell, the ACK/NACK signal indicating whether the broadcast information is successfully received or not. A base station can know whether mobile stations successfully receive broadcast information or not and perform various operations to improve a reception rate of the broadcast information based on the result.

    摘要翻译: 在无线通信系统中发送广播信息的方法包括:从小区中的至少一个移动台发送广播信息并在上行链路信道上接收到ACK(确认)/ NACK(未确认))信号,所述ACK / NACK信号指示 广播信息是否成功接收。 基站可以知道移动站是否成功接收广播信息,并且基于该结果执行各种操作以提高广播信息的接收速率。

    Method for transmitting data using phase shift based precoding and transceiver supporting the same
    147.
    发明申请
    Method for transmitting data using phase shift based precoding and transceiver supporting the same 有权
    使用基于相移的预编码发送数据的方法和支持该预编码的收发器

    公开(公告)号:US20100061482A1

    公开(公告)日:2010-03-11

    申请号:US12312255

    申请日:2007-11-02

    IPC分类号: H04L27/20 H04L25/03

    摘要: A method of transmitting data using cyclic delay in a multi-antenna system using a plurality of subcarriers and a transceiver supporting the same are disclosed. More particularly, a method of selecting a matrix (second matrix) for transforming a precoding matrix (first matrix) into a unitary matrix from a codebook by a prescribed reference is disclosed. An index for selecting the second matrix is calculated by a prescribed modulo operation in an open loop system or delivered as feedback information in a closed loop system. Diversity can be obtained by switching each column of the selected second matrix in accordance with time. In a multi-user system, a single second matrix can be determined by combining columns of the second matrix selected by each user.

    摘要翻译: 公开了一种使用多个子载波在多天线系统中使用循环延迟发送数据的方法以及支持其的收发机。 更具体地,公开了一种选择用于将预编码矩阵(第一矩阵)从码本转换为规定参考的酉矩阵的矩阵(第二矩阵)的方法。 用于选择第二矩阵的索引通过在开环系统中的规定的模运算来计算,或者作为闭环系统中的反馈信息递送。 通过根据时间切换所选择的第二矩阵的每列,可以获得分集。 在多用户系统中,可以通过组合由每个用户选择的第二矩阵的列来确定单个第二矩阵。

    Apparatus and method for transmitting data in a multi-antenna system
    148.
    发明授权
    Apparatus and method for transmitting data in a multi-antenna system 失效
    用于在多天线系统中传输数据的装置和方法

    公开(公告)号:US08699470B2

    公开(公告)日:2014-04-15

    申请号:US13132220

    申请日:2009-10-07

    IPC分类号: H04B7/216

    CPC分类号: H04B7/0678

    摘要: A method and an apparatus for transmitting data in a multi-antenna system are provided. The method includes: selecting a plurality of modulation symbol blocks including at least one modulation symbol from total modulation symbols of a codeword, repeating the plurality of modulation symbol blocks in a time domain, combining the repeated plurality of modulation symbol blocks, and performing discrete Fourier transform (DFT) on the combined plurality of modulation symbol blocks.

    摘要翻译: 提供了一种用于在多天线系统中发送数据的方法和装置。 该方法包括:从码字的总调制符号中选择包括至少一个调制符号的多个调制符号块,在时域中重复多个调制符号块,组合重复的多个调制符号块,并执行离散傅里叶 对组合的多个调制符号块进行变换(DFT)。

    Apparatus and method for data transmission using transmit diversity in SC-FDMA system
    149.
    发明授权
    Apparatus and method for data transmission using transmit diversity in SC-FDMA system 失效
    在SC-FDMA系统中使用发射分集的数据传输的装置和方法

    公开(公告)号:US08553618B2

    公开(公告)日:2013-10-08

    申请号:US13000706

    申请日:2009-06-26

    IPC分类号: H04W4/00

    摘要: An apparatus for data transmission is provided. The apparatus includes a data processor encoding an information bit and generating a modulation symbol by performing constellation mapping on the encoded information bit, a discrete Fourier transform (DFT) unit performing DFT on the modulation symbol to generate a frequency-domain symbol, a space time block coding (STBC) processor performing STBC on the frequency-domain symbol to generate an STBC code consisting of 1st and 2nd STBC streams, a subcarrier mapper mapping the 1st STBC stream to a 1st subcarrier and mapping the 2nd STBC stream to a 2nd subcarrier, an inverse fast Fourier transform (IFFT) unit performing IFFT on the 1st subcarrier to generate a 1st single carrier-frequency division multiple access (SC-FDMA) symbol and performing IFFT on the 2nd subcarrier to generate a 2nd SC-FDMA symbol, and a plurality of transmit antennas transmitting the 1st and 2nd SC-FDMA symbols. STBC is effectively applied to a SC-FDMA system to decrease a peak-to-average power ratio (PAPR) and to maintain a single-carrier property.

    摘要翻译: 提供了一种用于数据传输的装置。 该装置包括:编码信息比特的数据处理器,并通过对编码信息比特执行星座映射来产生调制符号;对调制符号执行DFT的离散傅立叶变换(DFT)单元,生成频域符号,空时 块编码(STBC)处理器在频域符号上执行STBC以产生由第一和第二STBC流组成的STBC码,将第一STBC流映射到第一副载波并将第二STBC流映射到第二副载波的子载波映射器, 在第一子载波上执行IFFT的逆快速傅立叶变换(IFFT)单元,以产生第一单载波频分多址(SC-FDMA)符号,并在第二副载波上执行IFFT以产生第二SC-FDMA符号,以及 多个发送天线发送第一和第二SC-FDMA符号。 STBC有效地应用于SC-FDMA系统以降低峰均功率比(PAPR)并保持单载波特性。