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    • 31. 发明授权
    • 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
    • US07822102B2
    • 2010-10-26
    • US11767158
    • 2007-06-22
    • Mark KentVinko ErcegJun Zheng
    • Mark KentVinko ErcegJun Zheng
    • H04L27/30
    • H04B7/0417G06Q30/0283H04B7/0626H04B7/0639H04B7/0854
    • Aspects of a method and system for an efficient channel quantization method or MIMO pre-coding systems may include quantizing channel state information in a MIMO pre-coding system onto a codebook, which comprises one or more unitary matrices, using a cost function; selecting a quantization function that enables the quantizing based on a number of receive antennas and a number of transmit antennas associated with the MIMO pre-coding system; and selecting the cost function from a set of cost functions based on the number of receive antennas and the number of transmit antennas. The channel state information may be a matrix Ĥ. The set of cost functions may comprise function f(A), which may be defined by the following relationships: f ⁡ ( A ) = ∑ i = 1 N ⁢ ⁢ ∑ j = 1 , j ≠ i N ⁢ ⁢  a i , j  2 ⁢ ⁢ and / or ⁢ ⁢ f ⁡ ( A ) = ∑ i = 1 N ⁢ ⁢ ∑ j = 1 , j ≠ i N ⁢ ⁢  a i , j  2 - ∑ i = 1 N ⁢ ⁢ a i , i where A is a matrix of size N by N and aij is element (i,j) of matrix A.
    • 用于有效信道量化方法或MIMO预编码系统的方法和系统的方面可以包括:使用成本函数将MIMO预编码系统中的信道状态信息量化到包括一个或多个酉矩阵的码本上; 选择能够基于多个接收天线进行量化的量化函数和与MIMO预编码系统相关联的多个发射天线; 以及基于接收天线的数量和发射天线的数量从一组成本函数中选择成本函数。 信道状态信息可以是矩阵Ĥ。 一组成本函数可以包括函数f(A),其可以由以下关系定义:f⁡(A)=Σi = 1 N笨Σj = 1,j≠i Nüüai,j 庇2⁢or⁡⁡⁡⁡⁡ΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣ 其中A是N乘N的矩阵,aij是矩阵A的元素(i,j)。
    • 32. 发明申请
    • METHOD AND SYSTEM FOR RATE REDUCTION PRE-CODING MATRICES
    • 用于降低速率预编码矩阵的方法和系统
    • US20080192853A1
    • 2008-08-14
    • US11847683
    • 2007-08-30
    • Mark KentVinko ErcegJun ZhengUri Landau
    • Mark KentVinko ErcegJun ZhengUri Landau
    • H04L5/12
    • 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。
    • 33. 发明申请
    • METHOD AND SYSTEM FOR AN ALTERNATING DELTA QUANTIZER FOR LIMITED FEEDBACK MIMO PRE-CODERS
    • 用于有限反馈MIMO预编码器的替代量规的方法和系统
    • US20080192717A1
    • 2008-08-14
    • US11847669
    • 2007-08-30
    • Mark KentVinko ErcegJun ZhengUri Landau
    • Mark KentVinko ErcegJun ZhengUri Landau
    • H04B7/216
    • H04B7/0417H04B7/0626H04B7/0639H04B7/0641
    • Aspects of a method and system for an alternating delta quantizer for limited feedback MIMO pre-coders 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; feeding back, in an alternating manner, an index to an element of at least the first codebook or the second codebook, associated with the quantizing, from a receiver to a transmitter in said MIMO pre-coding system, 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.
    • 用于有限反馈MIMO预编码器的交替式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,每个代码簿包括一个或 更多的单位矩阵,使用成本函数; 以交替的方式,向所述MIMO预编码系统中的从接收机到发射机的与量化相关联的至少第一码本或第二码本的元素的索引进行反馈,并且生成至少第一和 至少基于信道状态信息的第二码本。 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是大小为N的矩阵,N是矩阵A的元素(i,j)。
        • 36. 发明授权
        • Method and system for best-M CQI feedback together with PMI feedback
        • 最佳M CQI反馈与PMI反馈的方法和系统
        • US08761790B2
        • 2014-06-24
        • US13442297
        • 2012-04-09
        • Mark KentVinko ErcegJun Zheng
        • Mark KentVinko ErcegJun Zheng
        • H04W72/00
        • H04L1/0026H04B7/0632H04B7/0639H04L1/0029
        • Aspects of a method and system for best-M CQI feedback together with PMI feedback may include generating a plurality of feedback messages, which may be communicated from a mobile station to a base station, wherein at least one of the generated plurality of feedback messages may be associated with each corresponding selected one of a plurality of Channel Quality Indicator (CQI) reporting units. The at least one of the generated feedback messages may comprise CQI information and Pre-coding Matrix Index (PMI) information, which may both be associated with the selected one of the plurality of CQI reporting units. At least one other of the generated plurality of feedback messages may comprise an aggregate CQI information, which is based on one or more of the plurality of CQI reporting units.
        • 用于最佳M CQI反馈的方法和系统以及PMI反馈的方面可以包括生成可以从移动台传送到基站的多个反馈消息,其中所生成的多个反馈消息中的至少一个可以 与多个信道质量指示符(CQI)报告单元中的每个相应选择的一个相关联。 所生成的反馈消息中的至少一个可以包括CQI信息和预编码矩阵索引(PMI)信息,其可以都与多个CQI报告单元中的所选择的一个相关联。 所生成的多个反馈消息中的至少另一个可以包括基于多个CQI报告单元中的一个或多个的聚合CQI信息。
        • 37. 发明授权
        • Method and system for best-M CQI feedback together with PMI feedback
        • 最佳M CQI反馈与PMI反馈的方法和系统
        • US08195184B2
        • 2012-06-05
        • US11864661
        • 2007-09-28
        • Mark KentVinko ErcegJun Zheng
        • Mark KentVinko ErcegJun Zheng
        • H04W72/00
        • H04L1/0026H04B7/0632H04B7/0639H04L1/0029
        • Aspects of a method and system for best-M CQI feedback together with PMI feedback may include generating a plurality of feedback messages, which may be communicated from a mobile station to a base station, wherein at least one of the generated plurality of feedback messages may be associated with each corresponding selected one of a plurality of Channel Quality Indicator (CQI) reporting units. The at least one of the generated feedback messages may comprise CQI information and Pre-coding Matrix Index (PMI) information, which may both be associated with the selected one of the plurality of CQI reporting units. At least one other of the generated plurality of feedback messages may comprise an aggregate CQI information, which is based on one or more of the plurality of CQI reporting units.
        • 用于最佳M CQI反馈的方法和系统以及PMI反馈的方面可以包括生成可以从移动台传送到基站的多个反馈消息,其中所生成的多个反馈消息中的至少一个可以 与多个信道质量指示符(CQI)报告单元中的每个相应选择的一个相关联。 所生成的反馈消息中的至少一个可以包括CQI信息和预编码矩阵索引(PMI)信息,其可以都与多个CQI报告单元中的所选择的一个相关联。 所生成的多个反馈消息中的至少另一个可以包括基于多个CQI报告单元中的一个或多个的聚合CQI信息。
        • 38. 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)。