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：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：US09419776B2

公开(公告)日：2016-08-16

申请号：US13984180

申请日：2012-02-07

申请人： Jean-Louis Gauvreau ,  Martino M. Freda ,  Zinan Lin ,  Joseph M. Murray ,  Chunxuan Ye ,  Erdem Bala ,  Mihaela C. Beluri ,  Douglas R. Castor ,  Amith V. Chincholi ,  Angelo A. Cuffaro ,  Yuying Dai ,  Alpaslan Demir ,  Joseph W. Gredone ,  Rui Yang ,  Liangping Ma ,  Rocco DiGirolamo ,  Athmane Touag ,  Debashish Purkayastha

发明人： Jean-Louis Gauvreau ,  Martino M. Freda ,  Zinan Lin ,  Joseph M. Murray ,  Chunxuan Ye ,  Erdem Bala ,  Mihaela C. Beluri ,  Douglas R. Castor ,  Amith V. Chincholi ,  Angelo A. Cuffaro ,  Yuying Dai ,  Alpaslan Demir ,  Joseph W. Gredone ,  Rui Yang ,  Liangping Ma ,  Rocco DiGirolamo ,  Athmane Touag ,  Debashish Purkayastha

IPC分类号： H04J3/00 ,  H04L5/14 ,  H04W16/24 ,  H04L5/06 ,  H04W16/14 ,  H04W28/16 ,  H04W72/04 ,  H04W72/08 ,  H04L1/18

CPC分类号： H04L1/1893 ,  H04L1/1812 ,  H04L1/1861 ,  H04L5/0032 ,  H04L5/0055 ,  H04L5/06 ,  H04L5/14 ,  H04L5/143 ,  H04L5/1469 ,  H04W16/14 ,  H04W16/24 ,  H04W28/16 ,  H04W72/0453 ,  H04W72/082

摘要： A method and apparatus for operating supplementary cells in licensed exempt (LE) spectrum. An aggregating cell operating in a frequency division duplex (FDD) licensed spectrum is aggregated with a LE supplementary cell operating in a time sharing mode for uplink (UL) and downlink (DL) operations. The LE supplementary cell may be an FDD supplementary cell dynamically configurable between an UL only mode, a DL only mode, and a shared mode, to match requested UL and DL traffic ratios. The LE supplementary cell may be a time division duplex (TDD) supplementary cell. The TDD supplementary cell may be dynamically configurable between multiple TDD configurations. A coexistence capability for coordinating operations between the LE supplementary cell with other systems operating in the same channel is provided. Coexistence gaps are provided to measure primary/secondary user usage and permit other systems operating in the LE supplementary cell channel to access the channel.

摘要翻译： 用于在许可豁免（LE）频谱中操作辅助小区的方法和装置。 以频分双工（FDD）许可频谱工作的聚合小区与在上行链路（UL）和下行链路（DL））操作的时分模式下操作的LE补充小区进行聚合。 LE补充小区可以是在仅UL模式，仅DL模式和共享模式之间动态配置的FDD补充小区，以匹配所请求的UL和DL业务比。 LE补充小区可以是时分双工（TDD）补充小区。 TDD补充小区可以在多个TDD配置之间动态配置。 提供了用于协调LE辅助单元与在同一通道中工作的其他系统之间的操作的共存能力。 提供共存间隙以测量主要/次要用户使用，并允许在LE辅助小区信道中操作的其他系统访问信道。

公开(公告)号：US20140161002A1

公开(公告)日：2014-06-12

申请号：US13984180

申请日：2012-02-07

申请人： Jean-Louis Gauvreau ,  Martino M. Freda ,  Zinan Lin ,  Joseph M. Murray ,  Chunxuan Ye ,  Erdem Bala ,  Mihaela C. Beluri ,  Douglas R. Castor ,  Amith V. Chincholi ,  Angelo A. Cuffaro ,  Yuying Dai ,  Alpaslan Demir ,  Joseph W. Gredone ,  Rui Yang ,  Liangping Ma ,  Rocco DiGirolamo ,  Debashish Purkayastha ,  Athmane Touag

发明人： Jean-Louis Gauvreau ,  Martino M. Freda ,  Zinan Lin ,  Joseph M. Murray ,  Chunxuan Ye ,  Erdem Bala ,  Mihaela C. Beluri ,  Douglas R. Castor ,  Amith V. Chincholi ,  Angelo A. Cuffaro ,  Yuying Dai ,  Alpaslan Demir ,  Joseph W. Gredone ,  Rui Yang ,  Liangping Ma ,  Rocco DiGirolamo ,  Debashish Purkayastha ,  Athmane Touag

IPC分类号： H04L5/14

CPC分类号： H04L1/1893 ,  H04L1/1812 ,  H04L1/1861 ,  H04L5/0032 ,  H04L5/0055 ,  H04L5/06 ,  H04L5/14 ,  H04L5/143 ,  H04L5/1469 ,  H04W16/14 ,  H04W16/24 ,  H04W28/16 ,  H04W72/0453 ,  H04W72/082

摘要： A method and apparatus for operating supplementary cells in licensed exempt (LE) spectrum. An aggregating cell operating in a frequency division duplex (FDD) licensed spectrum is aggregated with a LE supplementary cell operating in a time sharing mode for uplink (UL) and downlink (DL) operations. The LE supplementary cell may be an FDD supplementary cell dynamically configurable between an UL only mode, a DL only mode, and a shared mode, to match requested UL and DL traffic ratios. The LE supplementary cell may be a time division duplex (TDD) supplementary cell. The TDD supplementary cell may be dynamically configurable between multiple TDD configurations. A coexistence capability for coordinating operations between the LE supplementary cell with other systems operating in the same channel is provided. Coexistence gaps are provided to measure primary/secondary user usage and permit other systems operating in the LE supplementary cell channel to access the channel.

摘要翻译： 用于在许可豁免（LE）频谱中操作辅助小区的方法和装置。 以频分双工（FDD）许可频谱工作的聚合小区与在上行链路（UL）和下行链路（DL））操作的时分模式下操作的LE补充小区进行聚合。 LE补充小区可以是在仅UL模式，仅DL模式和共享模式之间动态配置的FDD补充小区，以匹配所请求的UL和DL业务比。 LE补充小区可以是时分双工（TDD）补充小区。 TDD补充小区可以在多个TDD配置之间动态配置。 提供了用于协调LE辅助单元与在同一通道中工作的其他系统之间的操作的共存能力。 提供共存间隙以测量主要/次要用户使用，并允许在LE辅助小区信道中操作的其他系统访问信道。

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：US20100137017A1

公开(公告)日：2010-06-03

申请号：US12627376

申请日：2009-11-30

申请人： Zinan Lin ,  Alexander Reznik ,  Prabhakar R. Chitrapu ,  Mihaela C. Beluri ,  Eldad M. Zeira ,  Philip J. Pietraski ,  Sung-Hyuk Shin ,  Gregg A. Charlton

发明人： Zinan Lin ,  Alexander Reznik ,  Prabhakar R. Chitrapu ,  Mihaela C. Beluri ,  Eldad M. Zeira ,  Philip J. Pietraski ,  Sung-Hyuk Shin ,  Gregg A. Charlton

IPC分类号： H04B7/005

CPC分类号： H04W52/146 ,  H04B7/2615 ,  H04L5/0007 ,  H04W24/02 ,  H04W52/0209 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/46 ,  H04W52/54 ,  H04W92/20 ,  Y02D70/00

摘要： A method and apparatus for power control for distributed wireless communication is disclosed including one or more power control loops associated with a wireless transmit/receive unit (WTRU). Each power control loop may include open loop power control or closed loop power control. A multi-phase power control method is also disclosed with each phase representing a different time interval and a WTRU sends transmissions at different power levels to different set of node-Bs or relay stations during different phases to optimize communications.

摘要翻译： 公开了一种用于分布式无线通信的功率控制的方法和装置，其包括与无线发射/接收单元（WTRU）相关联的一个或多个功率控制回路。 每个功率控制回路可以包括开环功率控制或闭环功率控制。 还公开了一种多相功率控制方法，每个阶段表示不同的时间间隔，并且WTRU在不同阶段期间以不同功率电平向不同组的节点B或中继站发送传输，以优化通信。