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    • 81. 发明授权
    • Method and system for an alternating channel delta quantizer for MIMO pre-coders with finite rate channel state information feedback
    • 用于具有有限速率信道状态信息反馈的MIMO预编码器的交替信道增量量化器的方法和系统
    • US08090048B2
    • 2012-01-03
    • US11847647
    • 2007-08-30
    • Mark KentVinko ErcegJun ZhengUri Landau
    • Mark KentVinko ErcegJun ZhengUri Landau
    • H04L25/49
    • H04B7/0434H04B7/0417H04B7/0626H04B7/0639H04B7/0641H04B7/065H04L1/06
    • Aspects of a method and system for an alternating channel delta quantizer for MIMO pre-coders with finite rate channel state information feedback may include quantizing a change in channel state information in a MIMO pre-coding system onto a codebook using a cost function and selecting the codebook from a set of codebooks; and generating the set of codebooks from a plurality of codebooks, where each may comprise one or more unitary matrices. The channel state information may be a matrix V that may be generated using Singular Value Decomposition (SVD) and/or Geometric Mean Decomposition (GMD). The selecting of the codebooks may be enabled by alternating between the elements of the set of codebooks. The cost function f(A) may be defined by the following relationship: f ⁡ ( A ) = ( 1 N ⁢ ∑ j = 1 N ⁢  a jj  2 ) where A is a matrix of size N by N and aij is element (i,j) of matrix A.
    • 用于具有有限速率信道状态信息反馈的MIMO预编码器的交替信道增量量化器的方法和系统的方面可以包括使用成本函数量化MIMO预编码系统中的信道状态信息到码本上的选择 来自一组码本的码本; 以及从多个码本生成所述码本集合,其中每个码本可以包括一个或多个酉矩阵。 信道状态信息可以是可以使用奇异值分解(SVD)和/或几何平均分解(GMD)生成的矩阵V. 可以通过在该码本集合的元素之间交替来启用码本的选择。 成本函数f(A)可以由以下关系定义:f⁡(A)=(1NΣj = 1 Na jj her 2)其中A是大小为N的矩阵,aij为 元素(i,j)。
    • 83. 发明授权
    • Method and system for dynamic adaptation and communicating differences in frequency—time dependent systems
    • 频率 - 时间相关系统动态适应和通信差异的方法和系统
    • US07983367B2
    • 2011-07-19
    • US11848418
    • 2007-08-31
    • Uri LandauMark KentVinko Erceg
    • Uri LandauMark KentVinko Erceg
    • H04L1/20
    • H04B7/0417H04B7/0632H04L25/0204H04L25/0222H04L2025/03414H04L2025/03426H04L2025/03802
    • Aspects of a method and system for dynamic adaptation and communicating differences in frequency-time dependent systems may include generating a time difference weighting factor and a frequency difference weighting factor, based on at least channel estimates. A time-frequency difference may be computed by forming a weighted sum comprising a time difference and a frequency difference, where forming the weighted sum uses at least the time difference weighting factor and the frequency weighting factor. A channel quality indicator (CQI) feedback message may be generated, comprising the time-frequency difference. The time difference weighting factor and/or the frequency difference weighting factor may be generated adaptively at a base station or a mobile terminal. The time difference and/or the frequency difference may be generated from estimated Signal-to-Noise-Ratios (SNRs) associated with the channel estimates. The SNRs may be based on at least the output of an MMSE receiver.
    • 基于频率时间的系统的用于动态适应和通信差异的方法和系统的方面可以包括至少基于信道估计来产生时差加权因子和频差加权因子。 可以通过形成包括时差和频率差的加权和来计算时间差,其中形成加权和至少使用时差加权因子和频率加权因子。 可以生成包括时间 - 频率差的信道质量指示符(CQI)反馈消息。 可以在基站或移动终端上自适应地生成时差加权因子和/或频差加权因子。 时间差和/或频率差可以从与信道估计相关联的估计的信噪比(SNR)产生。 SNR可以至少基于MMSE接收机的输出。
    • 84. 发明申请
    • METHOD AND SYSTEM FOR AN ALTERNATING CHANNEL DELTA QUANTIZER FOR MIMO PRE-CODERS WITH FINITE RATE CHANNEL STATE INFORMATION FEEDBACK
    • 用于具有有限速率信道状态信息反馈的MIMO预编码器的交替通道量测器的方法和系统
    • US20080192704A1
    • 2008-08-14
    • US11847647
    • 2007-08-30
    • Mark KentVinko ErcegJun ZhengUri Landau
    • Mark KentVinko ErcegJun ZhengUri Landau
    • H04B7/216
    • H04B7/0434H04B7/0417H04B7/0626H04B7/0639H04B7/0641H04B7/065H04L1/06
    • Aspects of a method and system for an alternating channel delta quantizer for MIMO pre-coders with finite rate channel state information feedback may include quantizing a change in channel state information in a MIMO pre-coding system onto a codebook using a cost function and selecting the codebook from a set of codebooks; and generating the set of codebooks from a plurality of codebooks, where each may comprise one or more unitary matrices. The channel state information may be a matrix V that may be generated using Singular Value Decomposition (SVD) and/or Geometric Mean Decomposition (GMD). The selecting of the codebooks may be enabled by alternating between the elements of the set of codebooks. The cost function f(A) may be defined by the following relationship: f  ( A ) = ( 1 N  ∑ j = 1 N   a jj  2 ) where A is a matrix of size N by N and aij is element (i,j) of matrix A.
    • 用于具有有限速率信道状态信息反馈的MIMO预编码器的交替信道增量量化器的方法和系统的方面可以包括使用成本函数量化MIMO预编码系统中的信道状态信息到码本上的选择 来自一组码本的码本; 以及从多个码本生成所述码本集合,其中每个码本可以包括一个或多个酉矩阵。 信道状态信息可以是可以使用奇异值分解(SVD)和/或几何平均分解(GMD)生成的矩阵V. 可以通过在该码本集合的元素之间交替来启用码本的选择。 成本函数f(A)可以由以下关系定义: f A = 1 N > / MI> 2 其中A是大小为N的矩阵,N是矩阵A的元素(i,j)。
        • 87. 发明申请
        • Method and system for diversity processing
        • 分集处理方法和系统
        • US20060073797A1
        • 2006-04-06
        • US11174303
        • 2005-06-30
        • Mark KentVinko ErcegUri Landau
        • Mark KentVinko ErcegUri Landau
        • H04B1/02H04B7/08
        • H04L1/1867H04B1/711H04B7/06H04B7/0891H04L1/0003
        • In an RF communication system, aspects for diversity processing may comprise processing a plurality of received multipath signals as clusters of signals. The received multipath signals may be diversity signals received from diversity transmit antennas at a base station. Timing information may be generated for tracking the clusters of signals. Complex phase and amplitude information may also be estimated for at least some of the multipath signals in the clusters of signals. At least a portion of the received multipath signals may be combined to form a single path processed diversity signal. A plurality of the single path processed diversity signals may be combined together, where each of the single path processed diversity signals may be derived from one of the plurality of diversity transmit antennas at the base station. The diversity signals may be transmitted via at least one of a plurality of diversity modes.
        • 在RF通信系统中,用于分集处理的方面可以包括将多个接收的多径信号作为信号簇进行处理。 所接收的多径信号可以是从基站的分集发射天线接收的分集信号。 可以产生用于跟踪信号簇的定时信息。 也可以为信号簇中的至少一些多径信号估计复相位和幅度信息。 所接收的多路径信号的至少一部分可以被组合以形成单路径处理的分集信号。 多个单路径处理的分集信号可以组合在一起,其中单个路径处理的分集信号中的每一个可以从基站处的多个分集发射天线之一导出。 分集信号可以经由多个分集模式中的至少一个发送。