公开(公告)号：US09036516B2

公开(公告)日：2015-05-19

申请号：US13313297

申请日：2011-12-07

申请人： Mark Kent ,  Vinko Erceg ,  Jun Zheng ,  Sirikiat Ariyavisitakul

发明人： Mark Kent ,  Vinko Erceg ,  Jun Zheng ,  Sirikiat Ariyavisitakul

IPC分类号： H04W72/04 ,  H04W24/10

CPC分类号： H04W24/10 ,  H04B17/24 ,  H04W72/0453

摘要： In transmit pre-coding, a bandwidth and a feedback period to one or more CQI reporting units and a bandwidth and a feedback period to one or more PMI reporting units are assigned, respectively. Sub-divisions in time and/or frequency corresponding to the assigned bandwidths and the assigned feedback periods are dynamically adjusted based at least on uplink channel state information corresponding to the bandwidth and the feedback period assigned to the CQI reporting units, and the bandwidth and the feedback period assigned to the PMI reporting units. One or more feedback messages are generated based at least on the channel state information over the adjusted sub-divisions in time and/or frequency corresponding to the CQI reporting units and to the PMI reporting units, respectively. The bandwidth and/or the feedback period may be assigned based on the channel state information or as a function of a feedback rate.

摘要翻译： 在发送预编码中，分配给一个或多个CQI报告单元的带宽和反馈周期以及到一个或多个PMI报告单元的带宽和反馈周期。 至少基于对应于分配给CQI报告单元的带宽和反馈周期的上行链路信道状态信息来动态地调整与分配的带宽和分配的反馈周期相对应的时间和/或频率的子部分，并且带宽和 反馈期分配给PMI报告单位。 至少基于经调整的子部分的信道状态信息，分别对应于CQI报告单元和对应于PMI报告单元的时间和/或频率生成一个或多个反馈消息。 可以基于信道状态信息或作为反馈速率的函数来分配带宽和/或反馈周期。

公开(公告)号：US08982969B2

公开(公告)日：2015-03-17

申请号：US11864672

申请日：2007-09-28

申请人： Mark Kent ,  Vinko Erceg ,  Jun Zheng ,  Sirikiat Ariyavisitakul ,  Uri Landau

发明人： Mark Kent ,  Vinko Erceg ,  Jun Zheng ,  Sirikiat Ariyavisitakul ,  Uri Landau

IPC分类号： H04L27/28 ,  H04B7/06 ,  H04L1/00

CPC分类号： H04B7/066 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0641 ,  H04L1/0026 ,  H04L1/0027

摘要： Aspects of a method and system for CQI/PMI feedback for precoded MIMO systems utilizing differential codebooks may include generating one or more feedback messages for one or more Channel Quality Indicator (CQI) reporting units based on at least channel state information associated with the one or more CQI reporting units. One or more differential feedback messages may be generated for one or more Pre-coding Matrix Index (PMI) reporting units based on at least channel state information associated with the one or more PMI reporting units, wherein the one or more PMI reporting units span a useable bandwidth. A bandwidth and a feedback period may be assigned to each of the one or more CQI reporting units and the one or more PMI reporting units to define the one or more CQI reporting units and the one or more PMI reporting units.

摘要翻译： 基于使用差分码本的预编码MIMO系统的用于CQI / PMI反馈的方法和系统的方面可以包括基于至少与该一个或多个信道质量指示符（CQI）报告单元相关联的信道状态信息为一个或多个信道质量指示符（CQI）报告单元生成一个或多个反馈消息 更多的CQI报告单位。 至少基于与一个或多个PMI报告单元相关联的信道状态信息，可以为一个或多个预编码矩阵索引（PMI）报告单元生成一个或多个差分反馈消息，其中一个或多个PMI报告单元跨越 可用带宽。 可以将一个或多个CQI报告单元和一个或多个PMI报告单元中的每一个分配带宽和反馈周期以定义一个或多个CQI报告单元和一个或多个PMI报告单元。

公开(公告)号：US20120281773A1

公开(公告)日：2012-11-08

申请号：US13442297

申请日：2012-04-09

申请人： Mark Kent ,  Vinko Erceg ,  Jun Zheng

发明人： Mark Kent ,  Vinko Erceg ,  Jun Zheng

IPC分类号： H04L27/00

CPC分类号： H04L1/0026 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/0029

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08090049B2

公开(公告)日：2012-01-03

申请号：US11847669

申请日：2007-08-30

申请人： Mark Kent ,  Vinko Erceg ,  Jun Zheng ,  Uri Landau

发明人： Mark Kent ,  Vinko Erceg ,  Jun Zheng ,  Uri Landau

IPC分类号： H04L25/49

CPC分类号： H04B7/0417 ,  H04B7/0626 ,  H04B7/0639 ,  H04B7/0641

摘要： 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.

摘要翻译： 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：f⁡（A）=（1NΣj = 1 Na jj her 2）其中A是大小的矩阵 N是N，aij是矩阵A的元素（i，j）。

公开(公告)号：US20110211656A1

公开(公告)日：2011-09-01

申请号：US13102946

申请日：2011-05-06

申请人： Mark Kent ,  Vinko Erceg ,  Jun Zheng

发明人： Mark Kent ,  Vinko Erceg ,  Jun Zheng

IPC分类号： H04L25/49

CPC分类号： H04L25/03343 ,  H04B7/0639 ,  H04B7/0663 ,  H04L1/06 ,  H04L25/0204 ,  H04L25/0248 ,  H04L2025/03426 ,  H04L2025/03687 ,  H04L2025/037 ,  H04L2025/03808

摘要： A delta quantizer for MIMO pre-coders with finite rate channel state information feedback may comprise partly 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.

摘要翻译： 用于具有有限速率信道状态信息反馈的MIMO预编码器的增量量化器可以包括将MIMO预编码系统中的信道状态信息的改变部分地量化到至少第一和第二码本上，每个码本包括一个或多个单位 矩阵，使用成本函数; 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，并且可以通过以下关系来定义成本函数：f（A）=（1NΣΣ= 1 Na jj her 2）其中A是大小的矩阵 N是N，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为至少第一码本生成一个或多个酉矩阵。

公开(公告)号：US20110206161A1

公开(公告)日：2011-08-25

申请号：US13031768

申请日：2011-02-22

申请人： Mark Kent ,  Vinko Erceg ,  Jun Zheng

发明人： Mark Kent ,  Vinko Erceg ,  Jun Zheng

IPC分类号： H04L27/00

CPC分类号： H04B7/0417 ,  H04B7/0626 ,  H04B7/0639 ,  H04B7/0641

摘要： 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.

摘要翻译： 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）=（1NΣΣj = 1 Na jj her 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。

公开(公告)号：US07961775B2

公开(公告)日：2011-06-14

申请号：US11767108

申请日：2007-06-22

申请人： Mark Kent ,  Vinko Erceg ,  Jun Zheng

发明人： Mark Kent ,  Vinko Erceg ,  Jun Zheng

IPC分类号： H04L27/30

CPC分类号： H04L25/03343 ,  H04B7/0639 ,  H04B7/0663 ,  H04L1/06 ,  H04L25/0204 ,  H04L25/0248 ,  H04L2025/03426 ,  H04L2025/03687 ,  H04L2025/037 ,  H04L2025/03808

摘要： 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 j ⁢ ⁢ j  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.

摘要翻译： 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，并且可以通过以下关系来定义成本函数：f⁡（A）=（1NΣj = 1 Naj⁢j2）其中A是矩阵 大小为N的N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为至少第一码本生成一个或多个酉矩阵。

公开(公告)号：US20080273624A1

公开(公告)日：2008-11-06

申请号：US11864672

申请日：2007-09-28

申请人： Mark Kent ,  Vinko Erceg ,  Jun Zheng ,  Sirikiat Ariyavisitakul ,  Uri Landau

发明人： Mark Kent ,  Vinko Erceg ,  Jun Zheng ,  Sirikiat Ariyavisitakul ,  Uri Landau

IPC分类号： H04L25/03

CPC分类号： H04B7/066 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0641 ,  H04L1/0026 ,  H04L1/0027

摘要： Aspects of a method and system for CQI/PMI feedback for precoded MIMO systems utilizing differential codebooks may include generating one or more feedback messages for one or more Channel Quality Indicator (CQI) reporting units based on at least channel state information associated with the one or more CQI reporting units. One or more differential feedback messages may be generated for one or more Pre-coding Matrix Index (PMI) reporting units based on at least channel state information associated with the one or more PMI reporting units, wherein the one or more PMI reporting units span a useable bandwidth. A bandwidth and a feedback period may be assigned to each of the one or more CQI reporting units and the one or more PMI reporting units to define the one or more CQI reporting units and the one or more PMI reporting units.

摘要翻译： 基于使用差分码本的预编码MIMO系统的用于CQI / PMI反馈的方法和系统的方面可以包括基于至少与该一个或多个信道质量指示符（CQI）报告单元相关联的信道状态信息为一个或多个信道质量指示符（CQI）报告单元生成一个或多个反馈消息 更多的CQI报告单位。 至少基于与一个或多个PMI报告单元相关联的信道状态信息，可以为一个或多个预编码矩阵索引（PMI）报告单元生成一个或多个差分反馈消息，其中一个或多个PMI报告单元跨越 可用带宽。 可以将一个或多个CQI报告单元和一个或多个PMI报告单元中的每一个分配带宽和反馈周期以定义一个或多个CQI报告单元和一个或多个PMI报告单元。

公开(公告)号：US20080192852A1

公开(公告)日：2008-08-14

申请号：US11847628

申请日：2007-08-30

申请人： Mark Kent ,  Vinko Erceg ,  Jun Zheng ,  Uri Landau

发明人： Mark Kent ,  Vinko Erceg ,  Jun Zheng ,  Uri Landau

IPC分类号： H04L27/28

CPC分类号： H04B7/0417 ,  H04B7/0634 ,  H04B7/0639 ,  H04L25/0204 ,  H04L25/0222 ,  H04L25/0242 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03802

摘要： 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.

摘要翻译： 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：