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21. 发明申请

US20090060020A1 METHOD AND APPARATUS FOR ESTIMATING AND CORRECTING BASEBAND FREQUENCY ERROR IN A RECEIVER 审中-公开
标题翻译：用于估计和校正接收器中基带频率误差的方法和装置
公开(公告)号：US20090060020A1
公开(公告)日：2009-03-05
申请号：US12265929
申请日：2008-11-06
申请人： Philip J. Pietraski , Rui Yang , Mihaela Beluri , Alpaslan Demir
发明人： Philip J. Pietraski , Rui Yang , Mihaela Beluri , Alpaslan Demir
IPC分类号： H04L27/01
CPC分类号： H04B1/7097 , H04B1/712 , H04L25/03248
摘要： A method and apparatus for estimating and correcting baseband frequency error in a receiver. In one embodiment, 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. In another embodiment, a channel estimator performs channel estimation and generates Rake receiver 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：一种用于估计和校正接收机中的基带频率误差的方法和装置。在一个实施例中，均衡器对采样数据流执行均衡，并且基于均衡产生滤波器抽头值。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。在另一个实施例中，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接收机手指权重。基于手指权重中的至少一个生成估计的频率误差信号。

22. 发明授权

US07499406B2 Method and apparatus for estimating and reporting the quality of a wireless communication channel 失效
标题翻译：用于估计和报告无线通信信道质量的方法和装置
公开(公告)号：US07499406B2
公开(公告)日：2009-03-03
申请号：US11732904
申请日：2007-04-04
申请人： Philip J. Pietraski , Gregory S. Sternberg , Rui Yang , Bin Li
发明人： Philip J. Pietraski , Gregory S. Sternberg , Rui Yang , Bin Li
IPC分类号： G06F11/00 , H04B3/46 , H04B17/00 , H04Q1/20
CPC分类号： H04L1/0026 , H04L1/20 , H04L25/0202
摘要： A method and apparatus for estimating and reporting the quality of a wireless communication channel between a wireless transmit/receive unit (WTRU) and a Node-B. A modulated signal is received from the Node-B over the communication channel and a channel estimation is performed on the modulated signal to provide a channel estimate. In one embodiment, the modulated signal is demodulated based on the channel estimate to provide a demodulated signal and a signal-to-interference (SIR) estimate based on the demodulated signal is obtained. The quality of the communication channel is estimated based on at least the SIR estimate. In an alternate embodiment, a SIR estimate based on the channel estimate is obtained. The quality of the communication channel is estimated based on the SIR estimate and additional information including at least one of delay spread, transmit power and WTRU velocity information.
摘要翻译：一种用于估计和报告无线发射/接收单元（WTRU）和节点B之间的无线通信信道的质量的方法和装置。通过通信信道从节点B接收调制信号，并对调制信号执行信道估计以提供信道估计。在一个实施例中，基于信道估计来解调调制信号以提供解调信号，并且获得基于解调信号的信号干扰（SIR）估计。至少基于SIR估计来估计通信信道的质量。在替代实施例中，获得基于信道估计的SIR估计。基于SIR估计和包括延迟扩展，发射功率和WTRU速度信息中的至少一个的附加信息来估计通信信道的质量。

23. 发明授权

US07215646B2 Method and apparatus for estimating and reporting the quality of a wireless communication channel 失效
标题翻译：用于估计和报告无线通信信道质量的方法和装置
公开(公告)号：US07215646B2
公开(公告)日：2007-05-08
申请号：US10940079
申请日：2004-09-14
申请人： Philip J. Pietraski , Gregory S. Sternberg , Rui Yang , Bin Li
发明人： Philip J. Pietraski , Gregory S. Sternberg , Rui Yang , Bin Li
IPC分类号： G01R31/08 , G06F11/00 , H04J1/16 , H04L12/26 , H04L27/06 , H03D1/00 , H03D1/04
CPC分类号： H04L1/0026 , H04L1/20 , H04L25/0202
摘要： A method and apparatus for estimating and reporting the quality of a wireless communication channel between a wireless transmit/receive unit (WTRU) and a Node-B. A modulated signal is received from the Node-B over the communication channel and a channel estimation is performed on the modulated signal to provide a channel estimate. In one embodiment, the modulated signal is demodulated based on the channel estimate to provide a demodulated signal and a signal-to-interference (SIR) estimate based on the demodulated signal is obtained. The quality of the communication channel is estimated based on at least the SIR estimate. In an alternate embodiment, a SIR estimate based on the channel estimate is obtained. The quality of the communication channel is estimated based on the SIR estimate and additional information including at least one of delay spread, transmit power and WTRU velocity information.
摘要翻译：一种用于估计和报告无线发射/接收单元（WTRU）和节点B之间的无线通信信道的质量的方法和装置。通过通信信道从节点B接收调制信号，并对调制信号执行信道估计以提供信道估计。在一个实施例中，基于信道估计来解调调制信号以提供解调信号，并且获得基于解调信号的信号干扰（SIR）估计。至少基于SIR估计来估计通信信道的质量。在替代实施例中，获得基于信道估计的SIR估计。基于SIR估计和包括延迟扩展，发射功率和WTRU速度信息中的至少一个的附加信息来估计通信信道的质量。

24. 发明授权

US07570690B2 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：US07570690B2
公开(公告)日：2009-08-04
申请号：US11265373
申请日：2005-11-02
申请人： Philip J. Pietraski , Mihaela Beluri , Alpaslan Demir , Jung-Lin Pan , Gregory S. Sternberg , Rui Yang , Bin Li
发明人： Philip J. Pietraski , Mihaela Beluri , Alpaslan Demir , Jung-Lin Pan , Gregory S. Sternberg , Rui Yang , Bin Li
IPC分类号： H03K5/08 , H04B1/10 , 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。

25. 发明授权

US10051624B2 Wireless operation in license exempt spectrum 有权
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.

26. 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。

27. 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。

28. 发明申请

US20090274197A1 METHOD AND APPARATUS FOR COMPENSATING FOR PHASE NOISE OF SYMBOLS SPREAD WITH A LONG SPREADING CODE 审中-公开
标题翻译：用于补充符号扩展与长期扩展代码的相位噪声的方法和装置
公开(公告)号：US20090274197A1
公开(公告)日：2009-11-05
申请号：US12500977
申请日：2009-07-10
申请人： Philip J. Pietraski , Mihaela Beluri , Rui Yang , Amith Vikram Chincholi , Kenneth P. Kearney
发明人： Philip J. Pietraski , Mihaela Beluri , Rui Yang , Amith Vikram Chincholi , Kenneth P. Kearney
IPC分类号： H04B1/707
CPC分类号： H04B1/707 , H04B2201/70701
摘要： A method and apparatus for compensating for phase noise of symbols spread with a long spreading code are disclosed. To compensate for the phase noise, a phase error estimate is generated from despread symbols with a short spreading code. A phase correcting phasor is applied to chip rate data before despreading the data with a long spreading code. A signal-to-interference ratio (SIR) on a common pilot channel (CPICH) may be calculated by spreading the data with a parent spreading code in an orthogonal variable spreading factor (OVSF) code tree and by combining symbols. Alternatively, a magnitude of the symbols may be used in estimating the SIR. The SIR of a channel using a short spreading code and an SIR of a channel using a long spreading code are measured. The SIR of the channel with the long spreading code may be compensated in accordance with a difference between degradation of the SIRs.
摘要翻译：公开了一种用于补偿以扩展码扩展的符号的相位噪声的方法和装置。为了补偿相位噪声，从具有短扩展码的解扩符号产生相位误差估计。在用扩展码长的数据解扩之前，将相位校正相量应用于码片速率数据。可以通过在正交可变扩展因子（OVSF）码树中扩展具有父扩展码的数据并通过组合符号来计算公共导频信道（CPICH）上的信号干扰比（SIR）。或者，可以在估计SIR时使用符号的大小。测量使用短扩展码的信道的SIR和使用长扩展码的信道的SIR。具有长扩展码的信道的SIR可以根据SIR的劣化之间的差异来补偿。

29. 发明申请

US20150131536A1 METHOD TO ENABLE WIRELESS OPERATION IN LICENSE EXEMPT SPECTRUM 审中-公开
标题翻译：在许可证执行频谱中实现无线操作的方法
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。

30. 发明申请

US20140086283A1 PHYSICAL LAYER NETWORK CODING USING FORWARD ERROR CORRECTION CODES 有权
标题翻译：物理层网络编码使用前向纠错码
公开(公告)号：US20140086283A1
公开(公告)日：2014-03-27
申请号：US14005730
申请日：2012-03-16
申请人： Weimin Liu , Rui Yang , Philip J. Pietraski
发明人： Weimin Liu , Rui Yang , Philip J. Pietraski
IPC分类号： H04B15/00 , H04B7/15
CPC分类号： H04B15/00 , H04B7/15 , H04B7/15521 , H04L1/0076
摘要： Two network nodes may exchange messages through a relay using physical-layer network coding combined with forward error correction coding (FEC). The relay determines a prime field order based on the channel condition and communicates the field order to the network nodes. Each network node encodes an outgoing message with linear codes over a field such as finite field of the field order, and transmits a signal carrying the encoded outgoing message. The relay receives a composite signal carrying the summation of the messages from the two network nodes. The relay decodes the composite signal and extracts a composite message with linear codes over finite field of field order, and broadcasts a signal carrying the composite message. Each network node receives the signal from the relay and extracts the message intended for it using linear subtraction over finite field of field order.
摘要翻译：两个网络节点可以使用结合前向纠错编码（FEC）的物理层网络编码通过中继交换消息。继电器基于信道条件确定主场顺序，并将该场顺序传送到网络节点。每个网络节点通过诸如场顺序的有限域的字段编码具有线性码的输出消息，并且发送携带编码的输出消息的信号。继电器接收携带来自两个网络节点的消息总和的复合信号。中继解码复合信号，并通过有限场场顺序提取具有线性码的复合消息，并广播携带复合消息的信号。每个网络节点接收来自中继器的信号，并通过有限场域顺序使用线性减法提取预期的消息。

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