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1. 发明授权

US08265130B2 Adaptive equalizer with a dual-mode active taps mask generator and a pilot reference signal amplitude control unit 失效
标题翻译：具有双模有源抽头掩码发生器和导频参考信号幅度控制单元的自适应均衡器
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。

2. 发明申请

US20110170589A1 APPARATUS FOR ESTIMATING AND CORRECTING BASEBAND FREQUENCY ERROR IN A RECEIVER 失效
标题翻译：用于接收器中估计和校正基带频率误差的装置
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。

3. 发明授权

US07724817B2 Method and apparatus for estimating the step-size of an adaptive equalizer 有权
标题翻译：用于估计自适应均衡器的步长的方法和装置
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。

4. 发明申请

US20090129458A1 METHOD AND APPARATUS FOR ESTIMATING THE STEP-SIZE OF AN ADAPTIVE EQUALIZER 有权
标题翻译：用于估计自适应均衡器的步长的方法和装置
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。

5. 发明授权

US08111788B2 Apparatus for estimating and correcting baseband frequency error in a receiver 失效
标题翻译：用于估计和校正接收机中基带频率误差的装置
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。

6. 发明授权

US09419776B2 Method and apparatus for operating supplementary cells in licensed exempt spectrum 有权
标题翻译：在许可豁免光谱中操作辅助细胞的方法和装置
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。

7. 发明申请

US20140161002A1 METHOD AND APPARATUS FOR OPERATING SUPPLEMENTARY CELLS IN LICENSED EXEMPT SPECTRUM 有权
标题翻译：在许可的样本谱中操作补充细胞的方法和装置
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。

8. 发明授权

US07609785B2 Mitigation of interference in cell search by wireless transmit and receive units 失效
标题翻译：通过无线发射和接收单元减轻小区搜索中的干扰
公开(公告)号：US07609785B2
公开(公告)日：2009-10-27
申请号：US12190935
申请日：2008-08-13
申请人： Philip J. Pietraski , Alpaslan Demir , Donald M. Grieco
发明人： Philip J. Pietraski , Alpaslan Demir , Donald M. Grieco
IPC分类号： H04L27/14 , H03D1/04
CPC分类号： H04B1/70735 , H04B1/70755 , H04B1/7083 , H04B1/709 , H04B1/7103 , H04B2201/70707
摘要： A wireless transmit receive unit (WTRU) provides facilitation of cell search. In one embodiment, received samples are split into a plurality of sample sets for processing. Each of the sets is processed and an accumulated result is divided by an estimated noise value. In another embodiment, a code correlator correlates the received signal with a primary synchronization code and an auxiliary code correlator having a same length as the code correlator correlates the received signal with a code having a low cross correlation with the primary synchronization code. In another embodiment, a division of an accumulated result with a noise estimate is performed using indexes of the most significant bits.
摘要翻译：无线发射接收单元（WTRU）提供小区搜索的便利。在一个实施例中，将接收到的样本分成多个样本集进行处理。处理每个集合，并将累积结果除以估计的噪声值。在另一个实施例中，码相关器将接收的信号与主同步码相关，并且与码相关器具有相同长度的辅助码相关器将接收的信号与与主同步码具有低互相关的代码相关。在另一个实施例中，使用最高有效位的索引来执行累积结果与噪声估计的分割。

9. 发明授权

US07496138B2 Method and apparatus for estimating the step-size of an adaptive equalizer 失效
标题翻译：用于估计自适应均衡器的步长的方法和装置
公开(公告)号：US07496138B2
公开(公告)日：2009-02-24
申请号：US11238469
申请日：2005-09-29
申请人： Philip J. Pietraski , Mihaela Beluri , Alpaslan Demir
发明人： Philip J. Pietraski , Mihaela Beluri , Alpaslan Demir
IPC分类号： H03H7/30 , H03K5/159
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。

10. 发明申请

US20100020751A1 MITIGATION OF INTERFERENCE IN CELL SEARCH BY WIRELESS TRANSMIT AND RECEIVE UNITS 有权
标题翻译：通过无线传输和接收单元缓解小区搜索干扰
公开(公告)号：US20100020751A1
公开(公告)日：2010-01-28
申请号：US12571880
申请日：2009-10-01
申请人： Philip J. Pietraski , Alpaslan Demir , Donald M. Grieco
发明人： Philip J. Pietraski , Alpaslan Demir , Donald M. Grieco
IPC分类号： H04W4/00
CPC分类号： H04B1/70735 , H04B1/70755 , H04B1/7083 , H04B1/709 , H04B1/7103 , H04B2201/70707
摘要： A wireless transmit receive unit (WTRU) provides facilitation of cell search. In one embodiment, received samples are split into a plurality of sample sets for processing. Each of the sets is processed and an accumulated result is divided by an estimated noise value. In another embodiment, a code correlator correlates the received signal with a primary synchronization code and an auxiliary code correlator having a same length as the code correlator correlates the received signal with a code having a low cross correlation with the primary synchronization code. In another embodiment, a division of an accumulated result with a noise estimate is performed using indexes of the most significant bits.
摘要翻译：无线发射接收单元（WTRU）提供小区搜索的便利。在一个实施例中，将接收到的样本分成多个样本集进行处理。处理每个集合，并将累积结果除以估计的噪声值。在另一个实施例中，码相关器将接收的信号与主同步码相关，并且与码相关器具有相同长度的辅助码相关器将接收的信号与与主同步码具有低互相关的代码相关。在另一个实施例中，使用最高有效位的索引来执行累积结果与噪声估计的分割。

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