公开(公告)号：US08111789B2

公开(公告)日：2012-02-07

申请号：US11173305

申请日：2005-06-30

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

CPC分类号： H04L25/0204 ,  H04B1/712

摘要： Aspects of a method and system for channel estimation in a MIMO communication system with multiple RF chains for WCDMA/HSDPA may comprise receiving a plurality of communication signals from a plurality of transmit antennas. A plurality of vectors of baseband combined channel estimates may be generated based on phase rotation of the received plurality of communication signals. A matrix of processed baseband combined channel estimates may be generated based on the generated plurality of vectors of baseband combined channel estimates. A plurality of amplitude and phase correction signals may be generated based on the generated plurality of vectors of baseband combined channel estimates. An amplitude and a phase of at least a portion of the received plurality of communication signals may be adjusted based on the generated plurality of amplitude and phase correction signals, respectively.

摘要翻译： 在具有用于WCDMA / HSDPA的多个RF链的MIMO通信系统中用于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通信信号。 可以基于所接收的多个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经处理的基带组合信道估计的矩阵。 可以基于生成的基带组合信道估计的多个矢量来生成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通信信号的至少一部分的振幅和相位。

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：US08068570B2

公开(公告)日：2011-11-29

申请号：US12401151

申请日：2009-03-10

申请人： Severine Catreux ,  Vinko Erceg ,  Pieter Roux ,  Pieter Van Rooyen ,  Jack Winters

发明人： Severine Catreux ,  Vinko Erceg ,  Pieter Roux ,  Pieter Van Rooyen ,  Jack Winters

IPC分类号： H04B7/10

CPC分类号： H04L1/0631 ,  H04B7/0634 ,  H04B7/0697 ,  H04B7/0848

摘要： A method for processing communication signals is disclosed and may include, in a receiver and/or a baseband processor coupled to the receiver, the receiver comprising a plurality of antennas, generating a plurality of RF weighting values based on one or more output bit error rates of the receiver. A plurality of spatially-multiplexed RF signals, which are received by the receiver, may be weighted with the one or more of the generated plurality of RF weighting values, to form a plurality of weighted RF signals. Two or more of the generated plurality of weighted RF signals may be combined to form one or more combined RF signals. Each of the one or more combined RF signals may be processed by a different RF processing chain. The one or more output bit error rates of the receiver may be minimized by the generation of the plurality of RF weighting values.

摘要翻译： 公开了一种用于处理通信信号的方法，并且可以在耦合到接收机的接收机和/或基带处理器中包括多个天线的接收机，其基于一个或多个输出误码率产生多个RF加权值 的接收器。 由接收机接收的多个空间多路复用RF信号可以利用所生成的多个RF加权值中的一个或多个进行加权，以形成多个加权RF信号。 所生成的多个加权RF信号中的两个或更多个可以被组合以形成一个或多个组合RF信号。 一个或多个组合RF信号中的每一个可以由不同的RF处理链来处理。 可以通过生成多个RF加权值来使接收机的一个或多个输出误码率最小化。

公开(公告)号：US08023907B2

公开(公告)日：2011-09-20

申请号：US12731456

申请日：2010-03-25

申请人： Vinko Erceg

发明人： Vinko Erceg

IPC分类号： H03C7/02

CPC分类号： H04B7/0654 ,  H04B7/06 ,  H04B7/0634 ,  H04B7/0891 ,  H04L1/0003 ,  H04L1/1867 ,  H04L25/0204 ,  H04L25/0224

摘要： Diversity processing for closed loops may include combining a plurality of received multipath signals to estimate at least one processed diversity signal based on information from at one or more common channels. The common channels may include a dedicated pilot channel transmitted by each diversity antenna. The received multipath signals may originate from diversity transmit antennas at a base station, which may be transmitting information via a closed loop diversity transmission mode. The closed loop diversity transmission mode may be WCDMA/HSDPA closed loop 1 or closed loop 2. Estimations may be made of the closed loop transmit weights used by the base station for transmission of the symbols. Closed loop symbols transmitted by the diversity transmit antennas may then be estimated based on received diversity signals and at least one dedicated pilot channel. At least a portion of the at least one processed diversity signal may be despread.

摘要翻译： 用于闭环的分集处理可以包括组合多个接收的多路径信号以基于来自一个或多个公共信道的信息来估计至少一个经处理的分集信号。 公共信道可以包括由每个分集天线发送的专用导频信道。 所接收的多径信号可以源于基站处的分集发射天线，其可以是经由闭环分集传输模式发射信息。 闭环分集传输模式可以是WCDMA / HSDPA闭环1或闭环2.估计可以由基站用于传输符号的闭环发射权重。 然后可以基于接收到的分集信号和至少一个专用导频信道来估计由分集发射天线发送的闭环码元。 至少一个经处理的分集信号的至少一部分可以被解扩。

公开(公告)号：US08023554B2

公开(公告)日：2011-09-20

申请号：US11173911

申请日：2005-06-30

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： H04B1/00

CPC分类号： H04L25/0212 ,  H04B1/7115 ,  H04B1/7117 ,  H04L25/0204

摘要： Aspects of a method and system for a single antenna receiver system for W-CDMA are provided and may comprise computing channel estimates based on received multipath signals. Timing correction signals indicating a location of the received multipath signals may be generated and the received multipath signals may be combined based on the computed channel estimates and/or the generated timing reference signals. The multipath signals may be combined as a signal cluster. Circuitry may be provided that computes channel estimates based on at least one of a plurality of received multipath signals, and generates timing reference signals indicating a location of at least one of the plurality of received multipath signals. Circuitry may also be provided that combines at least a portion of the plurality of received multipath signals based on at least a portion of the computed channel estimates and/or the generated timing reference signals.

摘要翻译： 提供了用于W-CDMA的单个天线接收机系统的方法和系统的方面，并且可以包括基于接收到的多径信号来计算信道估计。 可以产生指示所接收的多路径信号的位置的定时校正信号，并且可以基于所计算的信道估计和/或所生成的定时参考信号来组合所接收的多路径信号。 多径信号可以被组合为信号簇。 可以提供电路，其基于多个接收的多路径信号中的至少一个来计算信道估计，并且产生指示多个接收的多路径信号中的至少一个的位置的定时参考信号。 还可以提供电路，其基于所计算的信道估计的至少一部分和/或所生成的定时参考信号来组合多个接收的多径信号的至少一部分。

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：US20110128878A1

公开(公告)日：2011-06-02

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：US07881673B2

公开(公告)日：2011-02-01

申请号：US12360730

申请日：2009-01-27

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： H04B17/00

CPC分类号： H04B7/0857 ,  H04B7/0697 ,  H04L1/0026 ,  H04L1/1671

摘要： Certain aspects of the method may comprise generating models for a received plurality of spatially multiplexed communication signals for multiple channels from a plurality of transmit antennas. A calculated signal to noise ratio (SNR) of each multiple channel may be maximized based on the generated models. A phase and an amplitude of at least a portion of the received plurality of spatially multiplexed communication signals may be adjusted based on a plurality of amplitude and phase correction weights determined from the maximized SNR.

摘要翻译： 该方法的某些方面可以包括从多个发射天线为多个信道生成用于接收的多个空间复用通信信号的模型。 基于生成的模型，可以使每个多个信道的计算的信噪比（SNR）最大化。 可以基于从最大化的SNR确定的多个幅度和相位校正权重来调整所接收的多个空间复用的通信信号的至少一部分的相位和幅度。