Low Overhead Feedback Scheme for Codebook Based Closed-Loop Mimo
    91.
    发明申请
    Low Overhead Feedback Scheme for Codebook Based Closed-Loop Mimo 失效
    基于码本的闭环Mimo的低架空反馈方案

    公开(公告)号:US20110299622A1

    公开(公告)日:2011-12-08

    申请号:US13141207

    申请日:2010-02-09

    IPC分类号: H04L27/00

    CPC分类号: H04B7/0621 H04B7/0663

    摘要: The present invention relates to a Multi-Input Multi-Output (MIMO) communication system and more particularly, to a method for Correlation matrix feedback in a multi-cell wireless communication system. A method for transmitting correlation matrix feedback information of a mobile station considering adaptive feedback mode in a multi-cell wireless communication system according to one embodiment of the present invention comprises measuring a channel between the mobile station and a serving base station using a signal received from the serving base station; determining a first matrix indicating channel state information and a first precoder using the measured channel; generating a second matrix using a Fourier matrix and the first matrix; and transmitting feedback information including at least one of information of the first precoder and diagonal values of the second matrix.

    摘要翻译: 多输入多输出(MIMO)通信系统技术领域本发明涉及多输入多输出(MIMO)通信系统,更具体地说,涉及一种用于多小区无线通信系统中的相关矩阵反馈的方法。 在根据本发明的一个实施例的在多小区无线通信系统中考虑自适应反馈模式的移动站的相关矩阵反馈信息的传输方法包括:使用接收到的信号来测量移动站与服务基站之间的信道, 服务基站; 使用所测量的信道确定指示信道状态信息的第一矩阵和第一预编码器; 使用傅立叶矩阵和所述第一矩阵生成第二矩阵; 以及发送包括第一预编码器的信息和第二矩阵的对角线值中的至少一个的反馈信息。

    Method of transmitting channel quality indicator in wireless comunication system
    92.
    发明授权
    Method of transmitting channel quality indicator in wireless comunication system 有权
    无线通信系统中信道质量指标的传输方法

    公开(公告)号:US08064406B2

    公开(公告)日:2011-11-22

    申请号:US12448846

    申请日:2008-03-21

    IPC分类号: H04W4/00

    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。

    METHOD FOR TRANSMITTING/RECEIVING DATA IN A MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM USING MULTI-CARRIER
    94.
    发明申请
    METHOD FOR TRANSMITTING/RECEIVING DATA IN A MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM USING MULTI-CARRIER 失效
    使用多载波在多输入多输出系统中发送/接收数据的方法

    公开(公告)号:US20110274200A1

    公开(公告)日:2011-11-10

    申请号:US12674413

    申请日:2008-08-20

    IPC分类号: H04L27/28

    摘要: A method for transmitting/receiving data in a Multiple Input Multiple Output (MIMO) communication system is disclosed. The data transmission method includes determining a precoding matrix to be a part of a phase-shift-based precoding matrix, determining a first diagonal matrix for phase shift to be a part of the phase-shift-based precoding matrix, determining a unitary matrix to be a part of the phase-shift-based precoding matrix, precoding a transmission symbol for each resource using the phase-shift-based precoding matrix to produce precoded data, and transmitting the precoded data, wherein the phase-shift-based precoding matrix is determined by the product of the precoding matrix, a Hermitian matrix of the unitary matrix, the first diagonal matrix, and the unitary matrix.

    摘要翻译: 公开了一种在多输入多输出(MIMO)通信系统中发送/接收数据的方法。 数据传输方法包括将预编码矩阵确定为基于相移的预编码矩阵的一部分,将相移的第一对角矩阵确定为基于相移的预编码矩阵的一部分,确定酉矩阵 作为基于相移的预编码矩阵的一部分,使用基于相移的预编码矩阵预编码每个资源的传输符号以产生预编码的数据,并发送预编码的数据,其中基于相移的预编码矩阵是 由预编码矩阵的乘积,酉矩阵的Hermitian矩阵,第一对角矩阵和酉矩阵确定。

    APPARATUS AND METHOD FOR TRANSMITTING SIGNAL IN WIRELESS COMMUNICATION SYSTEM
    97.
    发明申请
    APPARATUS AND METHOD FOR TRANSMITTING SIGNAL IN WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统信号发送装置及方法

    公开(公告)号:US20110268072A1

    公开(公告)日:2011-11-03

    申请号:US13143725

    申请日:2010-01-29

    IPC分类号: H04W72/04

    CPC分类号: H04B7/0452 H04B7/068

    摘要: An apparatus and method for transmitting signals in a wireless communication system are provided. The apparatus includes N antennas, a processor coupled to the N antennas and configured to generate N transmit signals by performing precoding on R spatial streams for R spatial layers, and to transmit the N transmit signals respectively through the N antennas, wherein an information stream, a reference signal sequence, and a reference signal pattern are allocated to each of the R spatial layers, and the reference signal pattern is a time-frequency resource pattern used for transmission of the reference signal sequence, wherein each of the R spatial streams corresponds to one spatial layer, and wherein each of the R spatial streams is generated based on the information stream, reference signal sequence, and reference signal pattern allocated to a corresponding spatial layer.

    摘要翻译: 提供了一种用于在无线通信系统中发送信号的装置和方法。 该装置包括N个天线,耦合到N个天线的处理器,并被配置为通过对R个空间层的R个空间流执行预编码并且分别通过N个天线发送N个发射信号来产生N个发射信号,其中信息流, 参考信号序列和参考信号模式被分配给每个R空间层,并且参考信号模式是用于参考信号序列的传输的时间 - 频率资源模式,其中每个R空间流对应于 一个空间层,并且其中基于分配给对应空间层的信息流,参考信号序列和参考信号模式来生成每个R空间流。

    METHOD AND USER EQUIPMENT FOR TRANSMITTING FEEDBACK INFORMATION
    98.
    发明申请
    METHOD AND USER EQUIPMENT FOR TRANSMITTING FEEDBACK INFORMATION 有权
    用于发送反馈信息的方法和用户设备

    公开(公告)号:US20110222521A1

    公开(公告)日:2011-09-15

    申请号:US13045711

    申请日:2011-03-11

    IPC分类号: H04W40/00

    摘要: A method and User Equipment (UE) for transmitting feedback information are disclosed. The UE feeds back M best subbands to a Base Station (BS). Especially, the UE feeds back indication information indicating a combination of the M best subbands from among combinations each having M subbands produced out of a maximum number of subbands that can be allocated. Hence, coding of the feedback information is simplified.

    摘要翻译: 公开了一种用于发送反馈信息的方法和用户设备(UE)。 UE将M个最佳子带反馈到基站(BS)。 特别地,UE从可以分配的最大数量的子带中产生的具有M个子带的组合中反馈指示M个最佳子带的组合的指示信息。 因此,反馈信息的编码被简化。

    SIGNAL TRANSMISSION METHOD AND SIGNAL RECEIVING METHOD IN A MULTI-INPUT MULTI-OUTPUT SYSTEM
    99.
    发明申请
    SIGNAL TRANSMISSION METHOD AND SIGNAL RECEIVING METHOD IN A MULTI-INPUT MULTI-OUTPUT SYSTEM 审中-公开
    多输入多输出系统中的信号传输方法和信号接收方法

    公开(公告)号:US20110216840A1

    公开(公告)日:2011-09-08

    申请号:US13127441

    申请日:2009-11-04

    IPC分类号: H04L27/00

    摘要: Disclosed is a signal transmission method comprising a feedback information receiving step of receiving a transmission rate and channel state information for transmission from a receiving end, a step of generating a signal to be transmitted by using a multi-antenna in accordance with the transmission rate, a step of performing a precoding on the generated signal by using the precoding matrix of the nested structure selected from a predetermined codebook in accordance with the transmission rate, and a step of transmitting the precoded signal. Said codebook includes a precoding matrix set in which a pre-coding matrix according to a first number of streams is not included in a precoding matrix according to a second number of streams greater than the first number of streams.

    摘要翻译: 公开了一种信号传输方法,包括:反馈信息接收步骤,从接收端接收传输速率和信道状态信息以进行传输;根据传输速率产生使用多天线发射的信号的步骤; 通过使用根据传输速率从预定码本中选择的嵌套结构的预编码矩阵,对生成的信号执行预编码的步骤,以及发送预编码信号的步骤。 所述码本包括预编码矩阵集合,其中根据第一数量的流的预编码矩阵不包括在预编码矩阵中,根据大于第一数量的流的第二数量的流。