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    • 71. 发明授权
    • Method and system for codebook design for pre-coding techniques
    • 用于预编码技术的码本设计方法和系统
    • US08184732B2
    • 2012-05-22
    • US12111299
    • 2008-04-29
    • Jun ZhengVinko ErcegMark Kent
    • Jun ZhengVinko ErcegMark Kent
    • H04B7/02
    • H04L25/03343H04L25/0204H04L25/0248H04L27/18H04L2025/03401H04L2025/03426
    • 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.
    • 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。
    • 72. 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预编码的交替Delta量化器的方法和系统
    • US20120076223A1
    • 2012-03-29
    • US13310872
    • 2011-12-05
    • Mark KentVinko ErcegJun ZhengUri Landau
    • Mark KentVinko ErcegJun ZhengUri Landau
    • H04K1/10
    • 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)。
    • 74. 发明授权
    • Method and system for adaptive allocation of feedback resources for CQI and transmit pre-coding
    • 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
    • US08086242B2
    • 2011-12-27
    • US11864638
    • 2007-09-28
    • Mark KentVinko ErcegJun ZhengSirikiat Ariyavisitakul
    • Mark KentVinko ErcegJun ZhengSirikiat Ariyavisitakul
    • H04W72/00
    • H04W24/10H04B17/24H04W72/0453
    • 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.
    • 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。
    • 76. 发明申请
    • Method and System for Single Weight (SW) Antenna System for Single Channel (SC) MIMO
    • 用于单通道(SC)MIMO的单重(SW)天线系统的方法和系统
    • US20110280237A1
    • 2011-11-17
    • US13190085
    • 2011-07-25
    • Mark KentVinko ErcegUri LandauPieter van Rooyen
    • Mark KentVinko ErcegUri LandauPieter van Rooyen
    • H04B7/216
    • H04B7/0615
    • Methods and systems for processing signals in a receiver are disclosed herein and may comprise receiving WCDMA signals via M receive antennas, tracking a plurality of received clusters within the received WCDMA signals, and estimating a complex phase and amplitude of a portion of each of the received clusters. A single cluster may comprise an aggregate of received WCDMA signal paths and (M−1) phase shifters may be utilized for the estimating of the complex phase. Complex waveforms, comprising in-phase (I) and quadrature (Q) components for the received clusters within the received WCDMA signals, may be processed. The processed complex waveforms comprising the in-phase and quadrature components may be filtered to a WCDMA baseband bandwidth. A phase and/or amplitude for at least one of the received WCDMA signals may be adjusted utilizing the estimated complex phase and amplitude. The phase and/or amplitude may be adjusted continuously and/or at discrete intervals.
    • 在本文中公开了用于处理接收机中的信号的方法和系统,并且可以包括经由M个接收天线接收WCDMA信号,跟踪所接收的WCDMA信号内的多个接收到的簇,以及估计接收到的每个的一部分的复相位和振幅 集群。 单个群集可以包括接收到的WCDMA信号路径的聚合,并且可以使用(M-1)移相器来估计复数相位。 可以处理包括接收到的WCDMA信号内接收到的簇的同相(I)和正交(Q)分量的复杂波形。 包括同相和正交分量的经处理的复合波形可以被滤波到WCDMA基带带宽。 可以使用估计的复相位和幅度来调整所接收的WCDMA信号中的至少一个的相位和/或幅度。 可以连续地和/或以离散的间隔调整相位和/或振幅。
    • 77. 发明授权
    • Method and system for channel estimation in a spatial multiplexing MIMO system
    • 空间复用MIMO系统中信道估计的方法和系统
    • US07995537B2
    • 2011-08-09
    • US12427206
    • 2009-04-21
    • Mark KentVinko ErcegUri M LandauPieter van Rooyen
    • Mark KentVinko ErcegUri M LandauPieter van Rooyen
    • H04Q7/00
    • H04L25/0204H04L25/0242
    • Aspects of a method and system for channel estimation in a SM MIMO communication system may comprise receiving a plurality of spatially multiplexed communication signals from a plurality of transmit antennas. A plurality of baseband combined channel estimates based on phase rotation may be generated in response to the received plurality of spatially multiplexed communication signals. An estimate of the channel matrix may be determined based on the baseband combined channel estimates. A plurality of amplitude and phase correction signals may be generated in response to receiving the estimate of the channel matrix. An amplitude and a phase of at least a portion of the received plurality of spatially multiplexed communication signals may be adjusted based on the generated plurality of amplitude and phase correction signals, respectively.
    • 用于SM MIMO通信系统中的信道估计的方法和系统的方面可以包括从多个发射天线接收多个空间复用的通信信号。 可以响应于所接收的多个空间复用的通信信号来生成基于相位旋转的多个基带组合信道估计。 可以基于基带组合信道估计来确定信道矩阵的估计。 响应于接收到信道矩阵的估计,可以产生多个幅度和相位校正信号。 可以基于所生成的多个幅度和相位校正信号来调整所接收的多个空间多路复用的通信信号的至少一部分的振幅和相位。