公开(公告)号：US08265130B2

公开(公告)日：2012-09-11

申请号：US12512203

申请日：2009-07-30

申请人： Philip J. Pietraski ,  Mihaela C. Beluri ,  Alpaslan Demir ,  Jung-Lin Pan ,  Gregory S. Sternberg ,  Rui Yang ,  Bin Li

发明人： Philip J. Pietraski ,  Mihaela C. Beluri ,  Alpaslan Demir ,  Jung-Lin Pan ,  Gregory S. Sternberg ,  Rui Yang ,  Bin Li

IPC分类号： H03H7/40 ,  H03K5/159

CPC分类号： H04L25/03038 ,  H04B1/7097 ,  H04L27/0014 ,  H04L2025/03509 ,  H04L2025/03547 ,  H04L2025/03585 ,  H04L2025/03611 ,  H04L2025/03617 ,  H04L2025/03687 ,  H04L2027/003 ,  H04L2027/0038 ,  H04L2027/0065

摘要： An adaptive equalizer including an equalizer filter and a tap coefficients generator used to process a sample data stream derived from a plurality of received signals is disclosed. The tap coefficients generator includes an equalizer tap update unit, a vector norm square estimator, an active taps mask generator, a switch and a pilot amplitude reference unit used to minimize the dynamic range of the equalizer filter. A dynamic mask vector is used to mask active taps generated by the equalizer tap update unit when an unmasked signal output by the equalizer filter is selected by the switch to generate an error signal fed to the equalizer tap update unit. A fixed mask vector is used to mask active taps generated by the equalizer tap update unit when a masked signal output by the equalizer filter is used to generate the error signal.

摘要翻译： 公开了一种包括均衡器滤波器和用于处理从多个接收信号导出的采样数据流的抽头系数发生器的自适应均衡器。 抽头系数发生器包括均衡器抽头更新单元，矢量范数平方估计器，有源抽头掩码发生器，用于最小化均衡器滤波器的动态范围的开关和导频振幅参考单元。 当由开关选择由均衡器滤波器输出的未屏蔽信号以产生馈送到均衡器抽头更新单元的误差信号时，动态屏蔽矢量用于屏蔽均衡器抽头更新单元产生的有效抽头。 当使用由均衡器滤波器输出的屏蔽信号来产生误差信号时，固定屏蔽矢量用于屏蔽均衡器抽头更新单元产生的有源抽头。

公开(公告)号：US20110170589A1

公开(公告)日：2011-07-14

申请号：US13053856

申请日：2011-03-22

申请人： Philip J. Pietraski ,  Rui Yang ,  Mihaela C. Beluri ,  Alpaslan Demir

发明人： Philip J. Pietraski ,  Rui Yang ,  Mihaela C. Beluri ,  Alpaslan Demir

IPC分类号： H04L27/01

CPC分类号： H04B1/7097 ,  H04B1/712 ,  H04L25/03248

摘要： An apparatus for estimating and correcting baseband frequency error in a receiver is disclosed. An equalizer performs equalization on a sample data stream and generates filter tap values based on the equalization. An estimated frequency error signal is generated based on at least one of the filter tap values. A rotating phasor is generated based on the estimated frequency error signal. The rotating phasor signal is multiplied with the sample data stream to correct the frequency of the sample data stream. Alternatively, a channel estimator performs channel estimation and generates Rake receive finger weights based on at least one of the finger weights. An estimated frequency error signal is generated based on at least one of the finger weights.

摘要翻译： 公开了一种用于估计和校正接收机中基带频率误差的装置。 均衡器对样本数据流执行均衡，并基于均衡生成滤波器抽头值。 基于滤波器抽头值中的至少一个生成估计的频率误差信号。 基于估计的频率误差信号产生旋转相量。 将旋转相量信号与样本数据流相乘以校正样本数据流的频率。 或者，信道估计器执行信道估计，并且基于手指权重中的至少一个产生Rake接收手指权重。 基于手指权重中的至少一个生成估计的频率误差信号。

公开(公告)号：US08111788B2

公开(公告)日：2012-02-07

申请号：US13053856

申请日：2011-03-22

申请人： Philip J. Pietraski ,  Rui Yang ,  Mihaela C. Beluri ,  Alpaslan Demir

发明人： Philip J. Pietraski ,  Rui Yang ,  Mihaela C. Beluri ,  Alpaslan Demir

IPC分类号： H04L27/06

CPC分类号： H04B1/7097 ,  H04B1/712 ,  H04L25/03248

摘要： An apparatus for estimating and correcting baseband frequency error in a receiver is disclosed. An equalizer performs equalization on a sample data stream and generates filter tap values based on the equalization. An estimated frequency error signal is generated based on at least one of the filter tap values. A rotating phasor is generated based on the estimated frequency error signal. The rotating phasor signal is multiplied with the sample data stream to correct the frequency of the sample data stream. Alternatively, a channel estimator performs channel estimation and generates Rake receive finger weights based on at least one of the finger weights. An estimated frequency error signal is generated based on at least one of the finger weights.

摘要翻译： 公开了一种用于估计和校正接收机中基带频率误差的装置。 均衡器对样本数据流执行均衡，并基于均衡生成滤波器抽头值。 基于滤波器抽头值中的至少一个生成估计的频率误差信号。 基于估计的频率误差信号产生旋转相量。 将旋转相量信号与样本数据流相乘以校正样本数据流的频率。 或者，信道估计器执行信道估计，并且基于手指权重中的至少一个产生Rake接收手指权重。 基于手指权重中的至少一个生成估计的频率误差信号。

公开(公告)号：US20150131536A1

公开(公告)日：2015-05-14

申请号：US13991871

申请日：2011-12-06

申请人： Samian Kaur ,  Erdem Bala ,  Tao Deng ,  Kandarp Shah ,  Kiran K. Vanganuru ,  Philip J. Pietraski ,  Stephen E. Terry ,  Rui Yang ,  Gregory S. Sternberg ,  Douglas R. Castor ,  Ravikumar V. Pragada ,  Mihaela C. Beluri ,  Janet A. Stern-Berkowitz

发明人： Samian Kaur ,  Erdem Bala ,  Tao Deng ,  Kandarp Shah ,  Kiran K. Vanganuru ,  Philip J. Pietraski ,  Stephen E. Terry ,  Rui Yang ,  Gregory S. Sternberg ,  Douglas R. Castor ,  Ravikumar V. Pragada ,  Mihaela C. Beluri ,  Janet A. Stern-Berkowitz

IPC分类号： H04W72/04

CPC分类号： H04W72/0453 ,  H04L5/001 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0055 ,  H04L27/0006 ,  H04L27/2657 ,  H04L27/2662 ,  H04W72/0413

摘要： Described herein are methods to enable wireless cellular operation in unlicensed and lightly licensed, (collectively referred to as license exempt spectrum. Cognitive methods are used to enable use of unlicensed bands and/or secondary use of lightly licensed bands. Wireless devices may use licensed exempt spectrum as new bands in addition to the existing bands to transmit to a wireless transmit/receive unit (WTRU) in the downlink direction, or to a base station in the uplink direction. The wireless devices may access license exempt spectrum for bandwidth aggregation or relaying using a carrier aggregation framework. In particular, a primary component carrier operating in a licensed spectrum is used for control and connection establishment and a second component carrier operating in a licensed exempt spectrum is used for bandwidth extension.

摘要翻译： 这里描述的是使无线蜂窝操作以无许可且轻量许可的方式（统称为许可证豁免频谱），认知方法用于使得无许可频带能够使用和/或二次使用轻型许可频带。无线设备可以使用授权许可 频谱作为除了现有频带之外的新频带，以在下行链路方向上向无线发射/接收单元（WTRU）发送，或者在上行链路方向上发送到基站，无线设备可以访问许可证免除频谱以进行带宽聚合或中继 使用载波聚合框架，特别地，在许可频谱中操作的主要分量载波被用于控制和连接建立，并且在许可豁免频谱中操作的第二分量载波被用于带宽扩展。

公开(公告)号：US10051624B2

公开(公告)日：2018-08-14

申请号：US13991871

申请日：2011-12-06

申请人： Samian Kaur ,  Erdem Bala ,  Tao Deng ,  Kandarp Shah ,  Kiran K. Vanganuru ,  Philip J. Pietraski ,  Stephen E. Terry ,  Rui Yang ,  Gregory S. Sternberg ,  Douglas R. Castor ,  Ravikumar V. Pragada ,  Mihaela C. Beluri ,  Janet A. Stern-Berkowitz

发明人： Samian Kaur ,  Erdem Bala ,  Tao Deng ,  Kandarp Shah ,  Kiran K. Vanganuru ,  Philip J. Pietraski ,  Stephen E. Terry ,  Rui Yang ,  Gregory S. Sternberg ,  Douglas R. Castor ,  Ravikumar V. Pragada ,  Mihaela C. Beluri ,  Janet A. Stern-Berkowitz

IPC分类号： H04W72/04 ,  H04L5/00 ,  H04L27/00 ,  H04L27/26

CPC分类号： H04W72/0453 ,  H04L5/001 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0055 ,  H04L27/0006 ,  H04L27/2657 ,  H04L27/2662 ,  H04W72/0413

摘要： A grant that includes a resource allocation for a subframe set may be communicated. The subframe set may include a subframe resource and another subframe resource following the subframe resource. Sensing, during a sensing time prior to utilization of the subframe resource, that the unlicensed spectrum is available may be performed. Transmitting, based on the sensing, data on the subframe resource and the another subframe resource without further sensing may also be performed.

公开(公告)号：US20090129458A1

公开(公告)日：2009-05-21

申请号：US12360171

申请日：2009-01-27

申请人： Philip J. Pietraski ,  Mihaela C. Beluri ,  Alpaslan Demir

发明人： Philip J. Pietraski ,  Mihaela C. Beluri ,  Alpaslan Demir

IPC分类号： H04L27/01

CPC分类号： H04L25/03019 ,  H04B2201/70701 ,  H04L2025/03687

摘要： A step-size estimator for controlling the step-size of an adaptive equalizer incorporated in a transceiver (e.g., a wireless transmit/receive unit (WTRU)). The step-size estimator updates at least one adaptive equalizer tap used by the adaptive equalizer based on an apparent speed of a channel established between the transceiver and another transceiver. The step-size estimator includes a speed estimator, a signal-to-noise ratio (SNR) averager and a step-size mapping unit. The speed estimator is used to estimate the apparent speed of the channel (i.e., the observed and/or measured rate of change of the channel impulse response). The SNR averager generates a common pilot channel (CPICH) SNR estimate. The step-size mapping unit uses the speed estimate and the CPICH SNR estimate to generate a step-size parameter, μ, and a filter taps leakage factor parameter, α, used by the adaptive equalizer to update the filter tap coefficient.

摘要翻译： 用于控制并入收发器（例如，无线发射/接收单元（WTRU））中的自适应均衡器的步长的步长估计器。 步长估计器基于在收发器和另一收发器之间建立的信道的视在速度来更新由自适应均衡器使用的至少一个自适应均衡器抽头。 步长估计器包括速度估计器，信噪比（SNR）平均器和步长映射单元。 速度估计器用于估计信道的视在速度（即，观测和/或测量的信道脉冲响应的变化速率）。 SNR平均器生成公共导频信道（CPICH）SNR估计。 步进大小映射单元使用速度估计和CPICH SNR估计来生成步长大小参数，以及由自适应均衡器使用的滤波器抽头泄漏因子参数α，以更新滤波器抽头系数。

公开(公告)号：US07724817B2

公开(公告)日：2010-05-25

申请号：US12360171

申请日：2009-01-27

申请人： Philip J. Pietraski ,  Mihaela C. Beluri ,  Alpaslan Demir

发明人： Philip J. Pietraski ,  Mihaela C. Beluri ,  Alpaslan Demir

IPC分类号： H03H7/30

CPC分类号： H04L25/03019 ,  H04B2201/70701 ,  H04L2025/03687

摘要： A step-size estimator for controlling the step-size of an adaptive equalizer incorporated in a transceiver (e.g., a wireless transmit/receive unit (WTRU)). The step-size estimator updates at least one adaptive equalizer tap used by the adaptive equalizer based on an apparent speed of a channel established between the transceiver and another transceiver. The step-size estimator includes a speed estimator, a signal-to-noise ratio (SNR) averager and a step-size mapping unit. The speed estimator is used to estimate the apparent speed of the channel (i.e., the observed and/or measured rate of change of the channel impulse response). The SNR averager generates a common pilot channel (CPICH) SNR estimate. The step-size mapping unit uses the speed estimate and the CPICH SNR estimate to generate a step-size parameter, μ, and a filter taps leakage factor parameter, α, used by the adaptive equalizer to update the filter tap coefficient.

摘要翻译： 用于控制并入收发器（例如，无线发射/接收单元（WTRU））中的自适应均衡器的步长的步长估计器。 步长估计器基于在收发器和另一收发器之间建立的信道的视在速度来更新由自适应均衡器使用的至少一个自适应均衡器抽头。 步长估计器包括速度估计器，信噪比（SNR）平均器和步长映射单元。 速度估计器用于估计信道的视在速度（即，观测和/或测量的信道脉冲响应的变化速率）。 SNR平均器生成公共导频信道（CPICH）SNR估计。 步长映射单元使用速度估计和CPICH SNR估计来生成步长参数μ，以及自适应均衡器使用的滤波器抽头泄漏因子参数α来更新滤波器抽头系数。

公开(公告)号：US07532667B2

公开(公告)日：2009-05-12

申请号：US11256047

申请日：2005-10-21

申请人： Jung-Lin Pan ,  Mihaela C. Beluri ,  Philip J. Pietraski

发明人： Jung-Lin Pan ,  Mihaela C. Beluri ,  Philip J. Pietraski

IPC分类号： H03H7/30

CPC分类号： H04L25/03038 ,  H04B1/712 ,  H04B2201/70701 ,  H04L25/03044 ,  H04L2025/03375 ,  H04L2025/03477 ,  H04L2025/03617

摘要： A normalized least means square (NLMS) equalizer including two equalizer filters is disclosed. In one embodiment, a single correction term generator is used to generate correction terms for tap coefficient updates of each of the equalizer filters based on a pilot signal. In another embodiment, two different correction term generators are used to generate correction terms for each of the equalizer filters, whereby one of the correction term generators uses data received from a hard decision unit at the output of one of the equalizer filters to generate correction terms for both of the equalizer filters.

摘要翻译： 公开了包括两个均衡器滤波器的归一化最小均方（NLMS）均衡器。 在一个实施例中，单个校正项生成器用于基于导频信号产生每个均衡器滤波器的抽头系数更新的校正项。 在另一个实施例中，使用两个不同的校正项发生器来产生每个均衡器滤波器的校正项，由此校正项发生器之一使用在均衡器滤波器之一的输出处从硬判决单元接收的数据来产生校正项 两个均衡器滤波器。

公开(公告)号：US08958494B2

公开(公告)日：2015-02-17

申请号：US12725215

申请日：2010-03-16

申请人： Mihaela C. Beluri ,  Guodong Zhang ,  Philip J. Pietraski ,  Sung-Hyuk Shin ,  Erdem Bala ,  Kyle Jung-Lin Pan ,  Chang-Soo Koo ,  Janet A. Stern-Berkowitz

发明人： Mihaela C. Beluri ,  Guodong Zhang ,  Philip J. Pietraski ,  Sung-Hyuk Shin ,  Erdem Bala ,  Kyle Jung-Lin Pan ,  Chang-Soo Koo ,  Janet A. Stern-Berkowitz

IPC分类号： H04L1/02 ,  H04L25/03 ,  H04B7/04 ,  H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H04B7/06

CPC分类号： H04W72/0413 ,  H04B7/0417 ,  H04B7/0486 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0697 ,  H04L1/0026 ,  H04L1/0036 ,  H04L1/0041 ,  H04L1/1671 ,  H04L1/1861 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/006 ,  H04L5/0064 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W88/08

摘要： A method and apparatus for signal processing in a wireless transmit receive unit (WTRU), including generating a plurality of data bits and a plurality of control bits, mapping the data bits and control bits to one or more codewords, multiplexing the data bits and control bits, dividing the bits into layers, allocating control bits to each layer based on a channel quality of each codeword and a channel quality of each layer, and channel interleaving each layer for output to one or more antennas.

摘要翻译： 一种在无线发射接收单元（WTRU）中用于信号处理的方法和装置，包括生成多个数据位和多个控制位，将数据位和控制位映射到一个或多个码字，复用数据位和控制 比特，将比特分成多个层，基于每个码字的信道质量和每个层的信道质量将控制比特分配给每个层，以及信道交织每个层以输出到一个或多个天线。

公开(公告)号：US08213493B2

公开(公告)日：2012-07-03

申请号：US12415023

申请日：2009-03-31

申请人： Jung-Lin Pan ,  Mihaela C. Beluri ,  Philip J. Pietraski

发明人： Jung-Lin Pan ,  Mihaela C. Beluri ,  Philip J. Pietraski

IPC分类号： H03H7/30

CPC分类号： H04L25/03038 ,  H04B1/712 ,  H04B2201/70701 ,  H04L25/03044 ,  H04L2025/03375 ,  H04L2025/03477 ,  H04L2025/03617

摘要： A normalized least means square (NLMS) equalizer including two equalizer filters is disclosed. In one embodiment, a single correction term generator is used to generate correction terms for tap coefficient updates of each of the equalizer filters based on a pilot signal. In another embodiment, two different correction term generators are used to generate correction terms for each of the equalizer filters, whereby one of the correction term generators uses data received from a hard decision unit at the output of one of the equalizer filters to generate correction terms for both of the equalizer filters.

摘要翻译： 公开了包括两个均衡器滤波器的归一化最小均方（NLMS）均衡器。 在一个实施例中，单个校正项生成器用于基于导频信号产生每个均衡器滤波器的抽头系数更新的校正项。 在另一个实施例中，使用两个不同的校正项发生器来产生每个均衡器滤波器的校正项，由此校正项发生器之一使用在均衡器滤波器之一的输出处从硬判决单元接收的数据来产生校正项 两个均衡器滤波器。