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41. 发明授权

US08934572B2 Phase rotation for preambles within multiple user, multiple access, and/or MIMO wireless communications 有权
标题翻译：在多用户，多路访问和/或MIMO无线通信中的前导码的相位旋转
公开(公告)号：US08934572B2
公开(公告)日：2015-01-13
申请号：US13217830
申请日：2011-08-25
申请人： Jun Zheng , Min Chuin Hoo , Vinko Erceg
发明人： Jun Zheng , Min Chuin Hoo , Vinko Erceg
IPC分类号： H04K1/02 , H04L5/00 , H04L27/26 , H04L25/03
CPC分类号： H04L27/227 , H04B7/084 , H04L5/0026 , H04L5/0048 , H04L25/03866 , H04L27/20 , H04L27/2613 , H04L27/2621
摘要： Phase rotation for preambles within multiple user, multiple access, and/or MIMO wireless communications. An appropriately designed phase rotation vector and/or appropriately designed cyclic shift delays (CSDs) are applied to respective sub-band components of the preamble. With appropriately designed CSDs, certain fields within the preamble are not modified. For example, a legacy short training field (L-STF) of the preamble is not changed when using appropriately designed CSDs. The respective CSDs may be implemented as integer multiples of a common CSD (e.g., 0×CSD, 1×CSD, 2×CSD, etc. such that one of the values of such a CSD vector may be zero [0], another may be the common CSD itself, etc.). Also, by employing an appropriately designed phase rotation vector and integer multiples of a CSD to a preamble, the respective peak to average power ratio (PAPR) between different respective fields within the preamble may be minimized.
摘要翻译：在多用户，多路访问和/或MIMO无线通信中的前导码的相位旋转。将适当设计的相位旋转矢量和/或适当设计的循环移位延迟（CSD）应用于前导码的各个子带分量。通过适当设计的CSD，前导码中的某些字段不会被修改。例如，使用适当设计的CSD时，前导码的传统短训练字段（L-STF）不会改变。相应的CSD可以实现为公共CSD的整数倍（例如，0×CSD，1×CSD，2×CSD等，使得这样的CSD向量的值之一可以为零[0]，另一个可以成为常见的CSD本身等）。此外，通过将适当设计的相位旋转向量和CSD的整数倍应用于前同步码，可以使前导码内的不同相应场之间的相应峰均功率比（PAPR）最小化。

42. 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）。

43. 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。

44. 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）。

45. 发明申请

US20120051454A1 Phase rotation for preambles within multiple user, multiple access, and/or MIMO wireless communications 有权
标题翻译：在多用户，多路访问和/或MIMO无线通信中的前导码的相位旋转
公开(公告)号：US20120051454A1
公开(公告)日：2012-03-01
申请号：US13217830
申请日：2011-08-25
申请人： Jun Zheng , Min Chuin Hoo , Vinko Erceg
发明人： Jun Zheng , Min Chuin Hoo , Vinko Erceg
IPC分类号： H04L27/00
CPC分类号： H04L27/227 , H04B7/084 , H04L5/0026 , H04L5/0048 , H04L25/03866 , H04L27/20 , H04L27/2613 , H04L27/2621
摘要： Phase rotation for preambles within multiple user, multiple access, and/or MIMO wireless communications. An appropriately designed phase rotation vector and/or appropriately designed cyclic shift delays (CSDs) are applied to respective sub-band components of the preamble. With appropriately designed CSDs, certain fields within the preamble are not modified. For example, a legacy short training field (L-STF) of the preamble is not changed when using appropriately designed CSDs. The respective CSDs may be implemented as integer multiples of a common CSD (e.g., 0×CSD, 1×CSD, 2×CSD, etc. such that one of the values of such a CSD vector may be zero [0], another may be the common CSD itself, etc.). Also, by employing an appropriately designed phase rotation vector and integer multiples of a CSD to a preamble, the respective peak to average power ratio (PAPR) between different respective fields within the preamble may be minimized.
摘要翻译：在多用户，多路访问和/或MIMO无线通信中的前导码的相位旋转。将适当设计的相位旋转矢量和/或适当设计的循环移位延迟（CSD）应用于前导码的各个子带分量。通过适当设计的CSD，前导码中的某些字段不会被修改。例如，使用适当设计的CSD时，前导码的传统短训练字段（L-STF）不会改变。相应的CSD可以实现为公共CSD的整数倍（例如，0×CSD，1×CSD，2×CSD等，使得这样的CSD向量的值之一可以为零[0]，另一个可以成为常见的CSD本身等）。此外，通过将适当设计的相位旋转向量和CSD的整数倍应用于前同步码，可以使前导码内的不同相应场之间的相应峰均功率比（PAPR）最小化。

46. 发明授权

US08121567B2 Double search algorithm of user group selection for multiuser MIMO downlink transmission 有权
标题翻译：用户组选择双用户MIMO下行链路传输的双重搜索算法
公开(公告)号：US08121567B2
公开(公告)日：2012-02-21
申请号：US13037611
申请日：2011-03-01
申请人： Jun Zheng , Chengjin Zhang , Severine Catreux-Erceg , Vinko Erceg , Pieter Roux , Pieter van Rooyen
发明人： Jun Zheng , Chengjin Zhang , Severine Catreux-Erceg , Vinko Erceg , Pieter Roux , Pieter van Rooyen
IPC分类号： H04B1/18
CPC分类号： H04B7/0697 , H04B7/0452 , H04B7/0626
摘要： A method and system for a double search algorithm of user group selection for multiuser MIMO downlink transmission are provided. The use of optimal brute-force user group selection may require high computational expense. A first search operation may be based on a first user having a channel gain greater than that of other users, while a second search operation may be based on a second user having a channel gain greater than that of the remaining users. A maximized system capacity may be determined based on the maximized system capacities determined in the first and second search loop. A receiver pair associated with the maximized system capacity may be selected as the user group. The double search algorithm may reduce the computational complexity while achieving performances that may exceed the TDMA scheme and be similar to that of systems with ideal CSI at the transmitter.
摘要翻译：提供了一种用于多用户MIMO下行链路传输的用户组选择双重搜索算法的方法和系统。使用最佳暴力用户组选择可能需要较高的计算费用。第一搜索操作可以基于具有大于其他用户的信道增益的信道增益的第一用户，而第二搜索操作可以基于具有大于剩余用户的信道增益的信道增益的第二用户。可以基于在第一和第二搜索循环中确定的最大化的系统容量来确定最大化的系统容量。可以选择与最大系统容量相关联的接收机对作为用户组。双重搜索算法可以降低计算复杂度，同时实现可能超过TDMA方案的性能，并且类似于在发射机处具有理想CSI的系统的性能。

47. 发明授权

US08086242B2 Method and system for adaptive allocation of feedback resources for CQI and transmit pre-coding 有权
标题翻译：用于CQI的反馈资源的自适应分配和发送预编码的方法和系统
公开(公告)号：US08086242B2
公开(公告)日：2011-12-27
申请号：US11864638
申请日：2007-09-28
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： H04W72/00
CPC分类号： H04W24/10 , H04B17/24 , H04W72/0453
摘要： Aspects of a method and system for adaptive allocation of feedback resources for CQI and transmit pre-coding may include assigning 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. One or more feedback messages may be generated based at least on channel state information associated with the bandwidth and the feedback period assigned to the one or more CQI reporting units and with the bandwidth and the feedback period assigned to the one or more PMI reporting units. The bandwidth and the feedback period of the CQI reporting units and/or the PMI reporting units may be adjusted dynamically and/or adaptively. Based on the channel state information or as a function of a feedback rate, the bandwidth and/or the feedback period may be assigned.
摘要翻译：用于CQI的反馈资源和发送预编码的自适应分配的方法和系统的方面可以包括将带宽和反馈周期分配给一个或多个CQI报告单元以及带宽和反馈周期到一个或多个PMI报告单元。可以至少基于与分配给一个或多个CQI报告单元的带宽和反馈周期相关联的信道状态信息以及分配给一个或多个PMI报告单元的带宽和反馈周期来生成一个或多个反馈消息。可以动态地和/或自适应地调整CQI报告单元和/或PMI报告单元的带宽和反馈周期。基于信道状态信息或作为反馈速率的函数，可以分配带宽和/或反馈周期。

48. 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。

49. 发明申请

US20110305194A1 Legacy cyclic shift delay (CSD) for orthogonal frequency division multiplexing (OFDM) signaling within multiple user, multiple access, and/or MIMO wireless communications 有权
标题翻译：用于多用户，多址和/或MIMO无线通信中的正交频分复用（OFDM）信令的传统循环移位延迟（CSD）
公开(公告)号：US20110305194A1
公开(公告)日：2011-12-15
申请号：US13073775
申请日：2011-03-28
申请人： Jun Zheng , Vinko Erceg
发明人： Jun Zheng , Vinko Erceg
IPC分类号： H04W40/00
CPC分类号： H04B7/0671 , H04B7/0452 , H04B7/0691 , H04W52/42
摘要： Legacy cyclic shift delay (CSD) for use within multiple user, multiple access, and/or MIMO wireless communications. Appropriately designed CSD is applied to communications in wireless communication systems thereby ensuring a minimized power error difference between respective portions of a packet transmitted therein. Such respective portions of the packet may be portions of the packet's preamble. For example, the first and second portions may be a legacy short training field (L-STF) and a very high throughput short training field (VHT-STF). By applying such appropriately designed CSD to a packet, a wireless communication device receiving a signal corresponding to that packet need not perform extra or very significant backoff (e.g., with respect to a signal subsequent to automatic gain control (AGC) processing) thereby simplifying signal processing and potentially also reducing a total number of effective analog to digital converter (ADC) bits needed to represent a digitally sampled version of that signal.
摘要翻译：在多用户，多址和/或MIMO无线通信中使用的传统循环移位延迟（CSD）。将适当设计的CSD应用于无线通信系统中的通信，从而确保在其中发送的分组的各个部分之间的功率误差最小化。分组的这些各个部分可以是分组的前同步码的部分。例如，第一和第二部分可以是传统短训练场（L-STF）和非常高吞吐量的短训练场（VHT-STF）。通过将这种适当设计的CSD应用到分组，接收与该分组相对应的信号的无线通信设备不需要执行额外或非常显着的退避（例如，相对于自动增益控制（AGC）处理之后的信号），从而简化信号处理并潜在地减少用于表示该信号的数字采样版本所需的有效模/数转换器（ADC）位的总数。

50. 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。

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