公开(公告)号：US08477803B2

公开(公告)日：2013-07-02

申请号：US13324275

申请日：2011-12-13

申请人： Mark Kent ,  Vinko Erceg ,  Uri M. Landau ,  Pieter van Rooyen

发明人： Mark Kent ,  Vinko Erceg ,  Uri M. Landau ,  Pieter van Rooyen

IPC分类号： H04W4/00 ,  H04J3/00 ,  H04B1/10 ,  H04B7/10 ,  H04L1/02

CPC分类号： H04W52/42 ,  H04B7/0848 ,  H04L25/03019

摘要： In a RF communications system, aspects for implementing a single weight single channel MIMO system with no insertion loss may comprise generating at least one control signal that is utilized to control at least one of a plurality of received signals in a WCDMA and/or HSDPA system. A phase of a first of the plurality of received signals may be adjusted outside of a first processing path used to process that signal so that it is equivalent to a phase of at least a second of the plurality of received signals. A gain in the first processing path may be equivalent to a gain in a second processing path that is utilized to process the second of the plurality of received signals. The control signal may be utilized to adjust a phase and/or an amplitude of at least one of a plurality of received signals.

摘要翻译： 在RF通信系统中，用于实现没有插入损耗的单重权重单信道MIMO系统的方面可以包括生成用于控制WCDMA和/或HSDPA系统中的多个接收信号中的至少一个的至少一个控制信号 。 可以在用于处理该信号的第一处理路径之外调整多个接收信号中的第一个的相位，使得其相当于多个接收信号中的至少第二个的相位。 第一处理路径中的增益可以等效于用于处理多个接收信号中的第二处理路径的第二处理路径中的增益。 控制信号可以用于调整多个接收信号中的至少一个的相位和/或幅度。

公开(公告)号：US20130094378A1

公开(公告)日：2013-04-18

申请号：US13620602

申请日：2012-09-14

申请人： Uri M. Landau ,  Severine Catreux-Erceg ,  Mark Kent ,  Vinko Erceg

发明人： Uri M. Landau ,  Severine Catreux-Erceg ,  Mark Kent ,  Vinko Erceg

IPC分类号： H04W24/00

CPC分类号： H04W24/00 ,  H04B17/309 ,  H04W52/241 ,  H04W52/56

摘要： Method and apparatus for computing a noise power estimate in a wideband CDMA (WCDMA) network are disclosed and may include calculating a noise power estimate for a downlink channel based on an orthogonal sequence generated for a transmitted signal. The orthogonal sequence may be generated based on a slot number of the transmitted signal and/or a transmit diversity mode used for the transmitted signal. A portion of a plurality of dedicated physical channel (DPCH) pilot bits for the downlink channel may be summed to generate an in-phase (I) component and a quadrature (Q) component. The generated I component and the generated Q component may be multiplied by the orthogonal sequence to generate at least one noise I component and at least one noise Q component.

摘要翻译： 公开了用于计算宽带CDMA（WCDMA）网络中的噪声功率估计的方法和装置，并且可以包括基于为发射信号产生的正交序列来计算下行链路信道的噪声功率估计。 可以基于发送信号的时隙号和/或用于发送信号的发送分集模式来生成正交序列。 用于下行链路信道的多个专用物理信道（DPCH）导频比特的一部分可以相加以产生同相（I）分量和正交（Q）分量。 生成的I分量和所生成的Q分量可以乘以正交序列以产生至少一个噪声I分量和至少一个噪声Q分量。

公开(公告)号：US08363567B2

公开(公告)日：2013-01-29

申请号：US13022841

申请日：2011-02-08

申请人： Mark Kent ,  Vinko Erceg ,  Uri M Landau ,  Pieter G. W. van Rooyen ,  Pieter Roux

发明人： Mark Kent ,  Vinko Erceg ,  Uri M Landau ,  Pieter G. W. van Rooyen ,  Pieter Roux

IPC分类号： H04W24/00

CPC分类号： H04B7/0848 ,  H04B7/0634 ,  H04L1/0003 ,  H04L1/1845 ,  H04L25/0204 ,  H04L25/0212

摘要： In a wireless system, a method and system for channel estimation in a single channel MIMO system comprising two-transmit and multiple-receive antennas for WCDMA/HSDPA are provided. A first receive antenna and at least one additional receive antenna may receive a plurality of SC communication signals transmitted from a first and an additional transmit antennas. Estimates of the propagation channels between transmit and receive antennas may be performed concurrently and may be determined from a baseband combined channel estimate. The integration time may be based on channel estimation accuracy and wireless modem performance. The signals received in the additional receive antennas may be multiplied by a rotation waveform to achieve channel orthogonality. The rotation waveform's amplitude and phase components may be modified based on the channel estimates. Rotation of the received signals in the additional receive antennas may be continuous or periodic.

摘要翻译： 在无线系统中，提供了一种包括用于WCDMA / HSDPA的双发和多接收天线的单信道MIMO系统中信道估计的方法和系统。 第一接收天线和至少一个另外的接收天线可以接收从第一和另外的发射天线发射的多个SC通信信号。 可以同时执行发射天线和接收天线之间的传播信道的估计，并且可以从基带组合信道估计来确定。 积分时间可以基于信道估计精度和无线调制解调器性能。 在附加接收天线中接收的信号可以乘以旋转波形以实现信道正交性。 可以基于信道估计来修改旋转波形的幅度和相位分量。 接收信号在附加接收天线中的旋转可以是连续的或周期性的。

公开(公告)号：US08351556B2

公开(公告)日：2013-01-08

申请号：US13192773

申请日：2011-07-28

申请人： Mark Kent ,  Uri Landau ,  Severine Catreux-Erceg ,  Vinko Erceg ,  Ning Kong ,  Pieter Roux

发明人： Mark Kent ,  Uri Landau ,  Severine Catreux-Erceg ,  Vinko Erceg ,  Ning Kong ,  Pieter Roux

IPC分类号： H04B1/10

CPC分类号： H04B7/0413 ,  H04L25/03038 ,  H04L2025/03426 ,  H04L2025/03471 ,  H04L2025/03617 ,  H04L2025/03662 ,  H04L2025/037

摘要： Methods and systems for processing signals in a receiver are disclosed herein and may include updating a plurality of filter taps utilizing at least one channel response vector and at least one correlation vector, for a plurality of received clusters, based on initialized values related to the at least one channel response vector and the at least one correlation vector. At least a portion of the received signal clusters may be filtered utilizing at least a portion of the updated plurality of filter taps. The update may be repeated whenever a specified signal-to-noise ratio (SNR) for the received signal clusters is reached. The initialized values may be updated during a plurality of iterations, and the update may be repeated whenever a specified number of the plurality of iterations is reached.

摘要翻译： 本文公开了一种用于在接收机中处理信号的方法和系统，并且可以包括利用至少一个信道响应向量和至少一个相关向量来更新多个滤波器抽头，对于多个接收到的簇，基于与该at 至少一个信道响应向量和所述至少一个相关向量。 可以利用更新的多个滤波器抽头的至少一部分来对接收信号簇的至少一部分进行滤波。 只要达到接收信号簇的指定信噪比（SNR），就可以重新进行更新。 可以在多次迭代期间更新初始化值，并且可以在达到多次迭代的指定次数时重新进行更新。

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。

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）。

公开(公告)号：US08098776B2

公开(公告)日：2012-01-17

申请号：US11173727

申请日：2005-06-30

申请人： Mark Kent ,  Vinko Erceg ,  Uri M. Landau ,  Pieter Van Rooyen ,  Pieter Roux

发明人： Mark Kent ,  Vinko Erceg ,  Uri M. Landau ,  Pieter Van Rooyen ,  Pieter Roux

IPC分类号： H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08

CPC分类号： H04B7/0417 ,  H04B7/0697 ,  H04L1/0656 ,  H04L25/0204 ,  H04L25/0214 ,  H04L25/0244 ,  H04L25/025 ,  H04L25/03019 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03726 ,  H04L2025/03808

摘要： Certain aspects of the method may comprise receiving a plurality of spatially multiplexed communication signals from a plurality of transmit antennas at a base station. A plurality of vectors of baseband combined channel estimates may be generated based on phase rotation of the received plurality of spatially multiplexed communication signals. A plurality of pre-equalization weights may be generated based on the generated plurality of vectors of baseband combined channel estimates. The received plurality of spatially multiplexed communication signals may be modified based on the generated plurality of pre-equalization weights. At least a portion of the generated plurality of pre-equalization weights may be fed back to the base station for modifying subsequently transmitted spatially multiplexed communication signals which are transmitted from at least a portion of the plurality of transmit antennas at the base station.

摘要翻译： 该方法的某些方面可以包括在基站处从多个发射天线接收多个空间复用的通信信号。 可以基于所接收的多个空间复用通信信号的相位旋转来生成基带组合信道估计的多个向量。 可以基于所生成的多个基带组合信道估计向量来生成多个预均衡权重。 可以基于所生成的多个预均衡权重来修改所接收的多个空间复用的通信信号。 所生成的多个预均衡权重中的至少一部分可以反馈给基站，以便修改在基站处从多个发射天线的至少一部分发送的随后发送的空间复用的通信信号。

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。

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。

公开(公告)号：US20110280237A1

公开(公告)日：2011-11-17

申请号：US13190085

申请日：2011-07-25

申请人： Mark Kent ,  Vinko Erceg ,  Uri Landau ,  Pieter van Rooyen

发明人： Mark Kent ,  Vinko Erceg ,  Uri Landau ,  Pieter van Rooyen

IPC分类号： H04B7/216

CPC分类号： H04B7/0615

摘要： 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.

摘要翻译： 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。