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    • 12. 发明申请
    • METHOD AND SYSTEM FOR AN ALTERNATING CHANNEL DELTA QUANTIZER FOR 2X2 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2X2 MIMO预编译器的交替通道量测器的方法和系统
    • US20080192852A1
    • 2008-08-14
    • US11847628
    • 2007-08-30
    • Mark KentVinko ErcegJun ZhengUri Landau
    • Mark KentVinko ErcegJun ZhengUri Landau
    • H04L27/28
    • H04B7/0417H04B7/0634H04B7/0639H04L25/0204H04L25/0222H04L25/0242H04L25/03343H04L2025/03426H04L2025/03802
    • Aspects of a method and system for an alternating channel delta quantizer for 2×2 MIMO pre-coders with finite rate channel state information feedback may include quantizing a change in channel state information in a 2×2 MIMO pre-coding system onto a codebook using a cost function, and alternating the codebook between two codebooks, each of which comprises one or more unitary matrices. The channel state information may be a matrix V that may be generated using Singular Value Decomposition (SVD) or Geometric Mean Decomposition (GMD). 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. The one or more unitary matrices may be generated from a first matrix and a second matrix. The first matrix and the second matrix may be generated using a Givens decomposition.
    • 用于具有有限速率信道状态信息反馈的2×2 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2×2 MIMO预编码系统中信道状态信息到码本上的变化, 并且在两个码本之间交替码本,每个码本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)或几何平均分解(GMD)生成的矩阵V. 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)。一个或多个酉矩阵可以从 第一矩阵和第二矩阵。 可以使用Givens分解来生成第一矩阵和第二矩阵。
        • 13. 发明授权
        • Method and system for rate reduction pre-coding matrices
        • 速率降低预编码矩阵的方法和系统
        • US08687715B2
        • 2014-04-01
        • US11847683
        • 2007-08-30
        • Mark KentVinko ErcegJun ZhengUri Landau
        • Mark KentVinko ErcegJun ZhengUri Landau
        • H04L27/28
        • H04L25/03343H04L25/0204H04L25/0222H04L25/0248H04L2025/03426H04L2025/03808
        • Aspects of a method and system for a delta quantizer for rate reduction pre-coding matrices may include quantizing a change in channel state information in a MIMO pre-coding system onto a codebook and generating a pre-coding matrix based on at least the channel state information. The channel state information may be a matrix V and one or more associated singular values. The matrix V may be generated using Singular Value Decomposition (SVD) or Geometric Mean Decomposition (GMD). One or more columns of the matrix V may be selected based on the one or more associated singular values and may be combined to enable the generation of the pre-coding matrix. The codebook may comprise one or more unitary matrices. An index of an element of the codebook, onto which the change in channel state information is quantized, may be transmitted from a receiver to a transmitter.
        • 用于速率降低预编码矩阵的delta量化器的方法和系统的方面可以包括将MIMO预编码系统中的信道状态信息的变化量化到码本上,并且至少基于信道状态生成预编码矩阵 信息。 信道状态信息可以是矩阵V和一个或多个相关联的奇异值。 矩阵V可以使用奇异值分解(SVD)或几何平均分解(GMD)来生成。 可以基于一个或多个相关联的奇异值来选择矩阵V的一个或多个列,并且可以组合以使得能够生成预编码矩阵。 码本可以包括一个或多个酉矩阵。 信道状态信息的变化被量化的码本的元素的索引可以从接收器发送到发送器。
        • 15. 发明授权
        • Method and system for a 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Δ量化器的方法和系统
        • US08411728B2
        • 2013-04-02
        • US13031768
        • 2011-02-22
        • Mark KentVinko ErcegJun Zheng
        • Mark KentVinko ErcegJun Zheng
        • H04B1/00
        • H04B7/0417H04B7/0626H04B7/0639H04B7/0641
        • A MIMO pre-coding system for a 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, which comprises one or more unitary matrices, using a cost function. The codebook may be generated based on at least the channel state information. The channel state information may comprise a matrix V and 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. One or more unitary matrices may be generated from at least a first set of matrices and a second set of matrices, where the first set of matrices may comprise one or more Givens matrices. A dynamic range and a resolution of the codebook may be modified.
        • 用于具有有限速率信道状态信息反馈的MIMO预编码器的Δ量化器的MIMO预编码系统可以包括将MIMO预编码系统中的信道状态信息的改变量化到包括一个或多个酉矩阵的码本上, 使用成本函数。 码本可以至少基于信道状态信息生成。 信道状态信息可以包括矩阵V,并且成本函数f(A)可以由以下关系定义:f⁡(A)=(1NΣj = 1 Na jj钟2)其中A是 尺寸N乘N的矩阵和aij是矩阵A的元素(i,j)。可以从至少第一组矩阵和第二组矩阵生成一个或多个酉矩阵,其中第一组矩阵可以 包括一个或多个Givens矩阵。 可以修改码本的动态范围和分辨率。
        • 18. 发明申请
        • METHOD AND SYSTEM FOR AN EFFICIENT CHANNEL QUANTIZATION METHOD FOR MIMO PRE-CODING SYSTEMS
        • 用于MIMO预编码系统的有效信道量化方法的方法和系统
        • US20110051828A1
        • 2011-03-03
        • US12910485
        • 2010-10-22
        • Mark KentVinko ErcegJun Zheng
        • Mark KentVinko ErcegJun Zheng
        • H04L27/28
        • H04L5/143H04B7/0417H04B7/0639H04L25/0204H04L25/03343H04L2025/03426H04L2025/03808
        • A method and system for processing communication signals is provided and may comprise, quantizing a channel estimate at a MIMO receiver onto a codebook based on a cost function, wherein the codebook comprises a plurality of unitary matrices. A codebook index may be fed back from the MIMO receiver to a MIMO transmitter, wherein the codebook index is associated with one of the plurality of unitary matrices that minimizes the cost function. The cost function may be minimized by choosing a smallest scalar cost from a plurality of scalar costs, wherein each one of the scalar costs is generated from one or more sums and one or more products of elements of a product matrix, and wherein the product matrix is generated from one of the plurality of unitary matrices, a matrix comprising the channel estimate, and their respective Hermitian Transposes.
        • 提供了一种用于处理通信信号的方法和系统,并且可以包括:基于成本函数将MIMO接收机处的信道估计量化到码本上,其中码本包括多个酉矩阵。 码本索引可以从MIMO接收机反馈到MIMO发射机,其中,码本索引与使成本函数最小化的多个酉矩阵中的一个相关联。 可以通过从多个标量成本中选择最小标量成本来最小化成本函数,其中每个标量成本是从产品矩阵的一个或多个和的乘积和一个或多个乘积的乘积产生的,并且其中产品矩阵 从多个酉矩阵中的一个生成矩阵,包括信道估计的矩阵以及它们各自的厄米转移。
        • 19. 发明申请
        • METHOD AND SYSTEM FOR A 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DELTA量子的方法和系统
        • US20080165869A1
        • 2008-07-10
        • US11767108
        • 2007-06-22
        • Mark KentVinko ErcegJun Zheng
        • Mark KentVinko ErcegJun Zheng
        • H04L27/28
        • H04L25/03343H04B7/0639H04B7/0663H04L1/06H04L25/0204H04L25/0248H04L2025/03426H04L2025/03687H04L2025/037H04L2025/03808
        • Aspects of a method and system for a delta quantizer for MIMO pre-coders with finite rate channel state information feedback may comprise quantizing a change in channel state information in a MIMO pre-coding system onto at least a first and a second codebook, each of which comprises one or more unitary matrices, using a cost function; and generating the at least first and second codebook based on at least the channel state information. The channel state information may be a matrix V and the cost function 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. One or more unitary matrices may be generated for the at least first codebook from at least a first set of matrices and a second set of matrices.
        • 用于具有有限速率信道状态信息反馈的MIMO预编码器的Δ量化器的方法和系统的方面可以包括将MIMO预编码系统中的信道状态信息的改变量化到至少第一和第二码本上, 其包括使用成本函数的一个或多个酉矩阵; 以及至少基于所述信道状态信息生成所述至少第一和第二码本。 信道状态信息可以是矩阵V,并且成本函数可以由以下关系定义: < = 1 N > > Σ j = 1 N è 2 MROW> 其中A是大小N乘N的矩阵,并且矩阵A的元素(i,j)是一个或多个单位矩阵 可以从至少第一组矩阵和第二组矩阵为至少第一码本生成。