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21. 发明授权

US09356674B2 Method and system for using non-uniform channel quantization for a feedback-based communication system 有权
标题翻译：用于基于反馈的通信系统使用非均匀信道量化的方法和系统
公开(公告)号：US09356674B2
公开(公告)日：2016-05-31
申请号：US12652150
申请日：2010-01-05
申请人： Jun Zheng , Mark Kent , Vinko Erceg
发明人： Jun Zheng , Mark Kent , Vinko Erceg
IPC分类号： H04B17/00 , H04B7/06 , H04B7/04 , H04L1/00 , H04L25/02
CPC分类号： H04B7/0626 , H04B7/0417 , H04L1/0026 , H04L1/003 , H04L25/0202
摘要： A mobile device estimates channel state information (CSI) comprising, for example, CQI and/or SNR, for a downlink channel. The estimated CSI is non-uniformly quantized and transmitted to the base station over a finite-rate feedback channel. Different portions of the estimated CSI are quantized using different quantization step sizes, which are determined according to a performance metric function such as a channel capacity function of the estimated CSI. A quantization step size for a portion of the estimated CSI is increased if a low distribution probability is indicated by the portion of the estimated CSI. A quantization step size for a portion of the estimated CSI is decreased if a high distribution probability is indicated. The mobile device quantizes the estimated CSI using the determined quantization step sizes to transmit to the base station over the finite-rate feedback channel. Downlink data transmission is received according to the transmitted CSI.
摘要翻译：移动设备针对下行链路信道估计包括例如CQI和/或SNR的信道状态信息（CSI）。估计的CSI被不均匀地量化，并通过有限速率反馈信道发送到基站。使用不同的量化步长量化估计的CSI的不同部分，这些量化步长根据诸如估计的CSI的信道容量函数的性能度量功能来确定。如果估计的CSI的部分指示低分布概率，则估计的CSI的一部分的量化步长增加。如果指示高分配概率，则估计CSI的一部分的量化步长减小。移动设备使用确定的量化步长量化估计的CSI，以便通过有限速率反馈信道向基站发送。根据发送的CSI接收下行链路数据传输。

22. 发明授权

US08817899B2 Method and system for an alternating delta quantizer for limited feedback MIMO pre-coders 有权
标题翻译：用于有限反馈MIMO预编码器的交替Δ量化器的方法和系统
公开(公告)号：US08817899B2
公开(公告)日：2014-08-26
申请号：US13310872
申请日：2011-12-05
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 , H04B7/0626 , 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，每个码本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）。

23. 发明授权

US08184732B2 Method and system for codebook design for pre-coding techniques 有权
标题翻译：用于预编码技术的码本设计方法和系统
公开(公告)号：US08184732B2
公开(公告)日：2012-05-22
申请号：US12111299
申请日：2008-04-29
申请人： Jun Zheng , Vinko Erceg , Mark Kent
发明人： Jun Zheng , Vinko Erceg , Mark Kent
IPC分类号： H04B7/02
CPC分类号： H04L25/03343 , H04L25/0204 , H04L25/0248 , H04L27/18 , H04L2025/03401 , H04L2025/03426
摘要： Aspects of a method and system for codebook design for pre-coding techniques may include generating one or more matrices whose matrix elements are from a constant amplitude signal constellation, wherein each of the one or more generated matrices may comprise one or more orthonormal columns, and one of the generated one or more matrices may be an identity matrix. Any two of the generated one or more matrices may be separated by at least a minimum pairwise distance. One or more pre-coding codebooks may be generated, each of which may comprise one or more codebook elements that may be of a same matrix rank. Each of the codebook elements may be generated from a subset of columns from one of the generated one or more matrices. A signal may be pre-coded for transmission using the one or more pre-coding codebooks.
摘要翻译：用于预编码技术的码本设计的方法和系统的方面可以包括生成其矩阵元素来自恒定幅度信号星座的一个或多个矩阵，其中所述一个或多个生成的矩阵中的每一个可以包括一个或多个正交列，以及生成的一个或多个矩阵中的一个可以是单位矩阵。生成的一个或多个矩阵中的任何两个可以被至少最小成对距离分开。可以生成一个或多个预编码码本，每个码本可以包括可以具有相同矩阵等级的一个或多个码本元素。可以从所生成的一个或多个矩阵之一的列的子集生成每个码本元素。可以使用一个或多个预编码码本来预先编码用于传输的信号。

24. 发明申请

US20120076223A1 Method and System for an Alternating Delta Quantizer for Limited Feedback MIMO Pre-Coders 有权
标题翻译：用于有限反馈MIMO预编码的交替Delta量化器的方法和系统
公开(公告)号：US20120076223A1
公开(公告)日：2012-03-29
申请号：US13310872
申请日：2011-12-05
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： H04K1/10
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，每个码本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）。

25. 发明授权

US08085833B2 Method and system for an efficient channel quantization method for MIMO pre-coding systems 有权
标题翻译：用于MIMO预编码系统的有效信道量化方法的方法和系统
公开(公告)号：US08085833B2
公开(公告)日：2011-12-27
申请号：US13091903
申请日：2011-04-21
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： H04B7/0417 , H04B7/0626 , H04B7/0639 , H04B7/0641 , H04L25/0204 , H04L25/0246 , H04L25/03898
摘要： A method and system for processing communication signals is provided and may comprise, minimizing a cost function in a MIMO pre-coding system 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. The codebook is selected based on the minimized cost function. The channel estimate is quantized onto the selected codebook.
摘要翻译：提供了一种用于处理通信信号的方法和系统，并且可以包括通过从多个标量成本中选择最小标量成本来最小化MIMO预编码系统中的成本函数，其中每个标量成本是从一个或更多的和和产品矩阵的元素的一个或多个乘积，并且其中，产品矩阵从多个单一矩阵中的一个生成，包括信道估计的矩阵以及它们各自的厄米转移。基于最小化成本函数选择码本。信道估计量被量化到选定的码本上。

26. 发明申请

US20080268862A1 METHOD AND SYSTEM FOR BEST-M CQI FEEDBACK TOGETHER WITH PMI FEEDBACK 有权
标题翻译：具有PMI反馈的最佳M CQI反馈的方法和系统
公开(公告)号：US20080268862A1
公开(公告)日：2008-10-30
申请号：US11864661
申请日：2007-09-28
申请人： Mark Kent , Vinko Erceg , Jun Zheng
发明人： Mark Kent , Vinko Erceg , Jun Zheng
IPC分类号： H04Q7/20
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。

27. 发明授权

US08675760B2 Method and system for selecting a user group using hybrid-quantized channel direction information feedbacks from MIMO capable mobile devices 有权
标题翻译：使用来自MIMO能力的移动设备的混合量化信道方向信息反馈来选择用户组的方法和系统
公开(公告)号：US08675760B2
公开(公告)日：2014-03-18
申请号：US12652137
申请日：2010-01-05
申请人： Jun Zheng , Mark Kent , Vinko Erceg
发明人： Jun Zheng , Mark Kent , Vinko Erceg
IPC分类号： H04B7/02
CPC分类号： H04L25/0242 , H04B7/086 , H04W16/28 , H04W24/00 , H04W24/10
摘要： A mobile device receives beams orthogonal to a single user downlink MIMO channel associated with a selected first user in a user group. The mobile device estimates relative channel direction information with respect to the received beams for an associated single user downlink MIMO channel. The estimated relative channel direction information is hybrid-quantized to generate a semi-orthogonal matrix transmitted to the base station over a finite-rate feedback link. The mobile device receives downlink data transmission according to the hybrid-quantized relative channel direction information. The base station receives multiple semi-orthogonal matrices from remaining mobile devices to generate a semi-orthogonal group for the selected first user. A mobile device having the strongest quantized projected channel capacity is selected from the generated semi-orthogonal group as a second user. Mutual channel capacity information for the selected first and second users is determined to schedule corresponding downlink data transmissions, accordingly.
摘要翻译：移动设备接收与用户组中与所选择的第一用户相关联的单个用户下行MIMO信道正交的波束。移动设备针对相关联的单用户下行MIMO信道估计相对于所接收的波束的相对信道方向信息。估计的相对信道方向信息被混合量化以产生通过有限速率反馈链路发送到基站的半正交矩阵。移动设备根据混合量化的相对信道方向信息接收下行链路数据传输。基站从剩余的移动设备接收多个半正交矩阵，以生成所选择的第一用户的半正交组。作为第二用户，从所生成的半正交组中选择具有最强量化的投影信道容量的移动设备。确定所选择的第一和第二用户的相互信道容量信息相应地调度相应的下行链路数据传输。

28. 发明申请

US20110165846A1 METHOD AND SYSTEM FOR USING NON-UNIFORM CHANNEL QUANTIZATION FOR A FEEDBACK-BASED COMMUNICATION SYSTEM 有权
标题翻译：用于基于反馈的通信系统使用非均匀通道量化的方法和系统
公开(公告)号：US20110165846A1
公开(公告)日：2011-07-07
申请号：US12652150
申请日：2010-01-05
申请人： Jun Zheng , Mark Kent , Vinko Erceg
发明人： Jun Zheng , Mark Kent , Vinko Erceg
IPC分类号： H04B17/00
CPC分类号： H04B7/0626 , H04B7/0417 , H04L1/0026 , H04L1/003 , H04L25/0202
摘要： A mobile device estimates channel state information (CSI) comprising, for example, CQI and/or SNR, for a downlink channel. The estimated CSI is non-uniformly quantized and transmitted to the base station over a finite-rate feedback channel. Different portions of the estimated CSI are quantized using different quantization step sizes, which are determined according to a performance metric function such as a channel capacity function of the estimated CSI. A quantization step size for a portion of the estimated CSI is increased if a low distribution probability is indicated by the portion of the estimated CSI. A quantization step size for a portion of the estimated CSI is decreased if a high distribution probability is indicated. The mobile device quantizes the estimated CSI using the determined quantization step sizes to transmit to the base station over the finite-rate feedback channel. Downlink data transmission is received according to the transmitted CSI.
摘要翻译：移动设备针对下行链路信道估计包括例如CQI和/或SNR的信道状态信息（CSI）。估计的CSI被不均匀地量化，并通过有限速率反馈信道发送到基站。使用不同的量化步长量化估计的CSI的不同部分，这些量化步长根据诸如估计的CSI的信道容量函数的性能度量功能来确定。如果估计的CSI的部分指示低分布概率，则估计的CSI的一部分的量化步长增加。如果指示高分配概率，则估计CSI的一部分的量化步长减小。移动设备使用确定的量化步长量化估计的CSI，以便通过有限速率反馈信道向基站发送。根据发送的CSI接收下行链路数据传输。

29. 发明申请

US20110164510A1 METHOD AND SYSTEM FOR SELECTING A USER GROUP USING QUANTIZED CHANNEL STATE INFORMATION FEEDBACKS FROM MIMO CAPABLE MOBILE DEVICES 审中-公开
标题翻译：使用来自MIMO能力移动设备的量化信道状态信息反馈选择用户组的方法和系统
公开(公告)号：US20110164510A1
公开(公告)日：2011-07-07
申请号：US12652124
申请日：2010-01-05
申请人： Jun Zheng , Mark Kent , Vinko Erceg
发明人： Jun Zheng , Mark Kent , Vinko Erceg
IPC分类号： H04B15/00 , H04L12/26 , H04W4/00
CPC分类号： H04B7/0626 , H04W72/0406 , H04W72/08 , H04W72/121
摘要： A mobile device estimates channel status information (CSI) for an associated single user downlink multiple-input multiple-output (MIMO) channel. The estimated CSI is quantized using a finite quantization resolution. The quantized CSI is communicated to the base station over a finite-rate feedback channel. Intended downlink data transmission is scheduled by the base station according to the transmitted CSI, and received by the mobile device, accordingly. The estimated CSI comprise generalized channel quality information such as channel capacity and channel direction. The base station selects a first user having a strongest channel capacity according to quantized CSI received from associated mobile devices. Beams orthogonal to a single user downlink MIMO channel of the selected first user are broadcasted. Quantized relative channel direction matrices and projected channel capacity are received from remaining mobile devices. A user having a strongest projected channel capacity is selected a second user for the user group.
摘要翻译：移动设备估计用于相关联的单用户下行链路多输入多输出（MIMO）信道的信道状态信息（CSI）。使用有限量化分辨率对估计的CSI进行量化。量化的CSI通过有限速率反馈信道传送到基站。相应地，预定的下行链路数据传输由基站根据发送的CSI调度并由移动设备接收。估计的CSI包括广播信道质量信息，例如信道容量和信道方向。基站根据从相关联的移动设备接收到的量化CSI来选择具有最强信道容量的第一用户。广播与所选择的第一用户的单个用户下行链路MIMO信道正交的光束。从剩余的移动设备接收量化的相对信道方向矩阵和投影信道容量。为用户组选择具有最强投影通道容量的用户的第二用户。

30. 发明授权

US07953138B2 Method and system for an efficient channel quantization method for MIMO pre-coding systems 有权
标题翻译：用于MIMO预编码系统的有效信道量化方法的方法和系统
公开(公告)号：US07953138B2
公开(公告)日：2011-05-31
申请号：US12910485
申请日：2010-10-22
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： H04L5/143 , H04B7/0417 , H04B7/0639 , H04L25/0204 , H04L25/03343 , H04L2025/03426 , H04L2025/03808
摘要： 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.
摘要翻译：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。

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