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1. 发明授权

US07813735B2 Method and apparatus for performing a power efficient cell search in a multi-cell wireless communication system 有权
标题翻译：用于在多小区无线通信系统中执行功率有效的小区搜索的方法和装置
公开(公告)号：US07813735B2
公开(公告)日：2010-10-12
申请号：US11688286
申请日：2007-03-20
申请人： Frederic Monfet , Alpaslan Demir , Mark L. Richards
发明人： Frederic Monfet , Alpaslan Demir , Mark L. Richards
IPC分类号： H04W4/00
CPC分类号： H04B1/7083 , H04B1/70735 , H04B2201/70707
摘要： A method and apparatus for performing a power efficient cell search in a multi-cell wireless communication system are disclosed. A wireless transmit/receive unit (WTRU) having a memory that stores a cell identification list of prioritized previously top-ranked cell identities (IDs) is used to perform the cell search. A primary synchronization code (PSC) correlation peak location on a received signal is selected. A common pilot channel (CPICH) correlation value is determined by non-coherent integration of a local signal created based on a first cell ID on the cell identification list to the received signal. If the CPICH correlation value is greater than a noise threshold, thus indicating that the first cell ID is a newly found cell ID, or if a last cell ID in the cell identification list is reached, an additional determination is made as to whether there is more than one cell ID on the list having the same timing.
摘要翻译：公开了一种用于在多小区无线通信系统中执行功率有效的小区搜索的方法和装置。具有存储器的存储器的无线发送/接收单元（WTRU）被用于执行小区搜索，所述存储器存储优先排序的先前排名最广的小区标识（ID）的小区标识列表。选择接收信号上的主同步码（PSC）相关峰位置。公共导频信道（CPICH）相关值通过基于小区识别列表上基于第一小区ID创建的本地信号与接收信号的非相干积分来确定。如果CPICH相关值大于噪声阈值，则表示第一小区ID是新发现的小区ID，或者如果到达小区识别列表中的最后一个小区ID，则进一步确定是否存在列表上的多个单元格ID具有相同的时序。

2. 发明申请

US20070291730A1 METHOD AND APPARATUS FOR PERFORMING A POWER EFFICIENT CELL SEARCH IN A MULTI-CELL WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：用于在多小区无线通信系统中执行功率有效单元搜索的方法和装置
公开(公告)号：US20070291730A1
公开(公告)日：2007-12-20
申请号：US11688286
申请日：2007-03-20
申请人： Frederic Monfet , Alpaslan Demir , Mark Richards
发明人： Frederic Monfet , Alpaslan Demir , Mark Richards
IPC分类号： H04J3/06 , H04B7/26
CPC分类号： H04B1/7083 , H04B1/70735 , H04B2201/70707
摘要： A method and apparatus for performing a power efficient cell search in a multi-cell wireless communication system are disclosed. A wireless transmit/receive unit (WTRU) having a memory that stores a cell identification list of prioritized previously top-ranked cell identities (IDs) is used to perform the cell search. A primary synchronization code (PSC) correlation peak location on a received signal is selected. A common pilot channel (CPICH) correlation value is determined by non-coherent integration of a local signal created based on a first cell ID on the cell identification list to the received signal. If the CPICH correlation value is greater than a noise threshold, thus indicating that the first cell ID is a newly found cell ID, or if a last cell ID in the cell identification list is reached, an additional determination is made as to whether there is more than one cell ID on the list having the same timing.
摘要翻译：公开了一种用于在多小区无线通信系统中执行功率有效的小区搜索的方法和装置。具有存储器的存储器的无线发送/接收单元（WTRU）被用于执行小区搜索，所述存储器存储优先排序的先前排名最广的小区标识（ID）的小区标识列表。选择接收信号上的主同步码（PSC）相关峰位置。公共导频信道（CPICH）相关值通过基于小区识别列表上基于第一小区ID创建的本地信号与接收信号的非相干积分来确定。如果CPICH相关值大于噪声阈值，则表示第一小区ID是新发现的小区ID，或者如果到达小区识别列表中的最后一个小区ID，则进一步确定是否存在列表上的多个单元格ID具有相同的时序。

3. 发明授权

US09413500B2 Method and apparatus for dynamic bandwidth provisioning in frequency division duplex systems 有权
标题翻译：用于频分双工系统中动态带宽配置的方法和装置
公开(公告)号：US09413500B2
公开(公告)日：2016-08-09
申请号：US13232367
申请日：2011-09-14
申请人： Amith V. Chincholi , Alpaslan Demir , Tanbir Haque
发明人： Amith V. Chincholi , Alpaslan Demir , Tanbir Haque
IPC分类号： H04J1/00 , H04L5/00 , H04L5/14 , H04L27/00 , H04B7/212 , H04B7/00
CPC分类号： H04W72/0446 , H04B7/00 , H04J1/00 , H04L5/001 , H04L5/0023 , H04L5/0032 , H04L5/0044 , H04L5/0064 , H04L5/0071 , H04L5/14 , H04L5/143 , H04L27/0006 , H04L43/16 , H04W72/0413 , H04W72/042
摘要： A method and apparatus are described that provides flexible spectrum usage by using a paired frequency division duplex (FDD) spectrum to enable dynamic access in television white space (TVWS), sub-leased spectrum or unlicensed spectrum, (e.g., industrial, scientific and medical (ISM) bands), in a femto cell environment or the like. Elastic FDD (E-FDD) enables femto cell operation in TVWS, sub-leased spectrum and/or unlicensed spectrum, either simultaneously with licensed spectrum or as an alternate channel to licensed spectrum. E-FDD enables dynamic asymmetric bandwidth allocation for uplink (UL) and downlink (DL) in FDD, and enables variable duplex spacing, (i.e., using FDD with minimum duplex spacing between DL and UL spectrum, or, using hybrid-FDD, (FDD in a time duplexed fashion), when a spectrum gap between the UL and DL spectrum is below a certain minimum threshold. Additionally, the signaling enhancements to implement E-FDD are also provided.
摘要翻译：描述了一种方法和装置，其通过使用成对的频分双工（FDD）频谱来实现灵活的频谱使用，以实现电视空白（TVWS），次租用频谱或非许可频谱（例如工业，科学和医学）（ISM）频带），在毫微微小区环境等中。弹性FDD（E-FDD）使得能够在TVWS，子租用频谱和/或非许可频谱中的毫微微小区操作，或者与许可频谱同时或作为许可频谱的备用信道。 E-FDD实现了FDD中的上行链路（UL）和下行链路（DL）的动态非对称带宽分配，并且实现了可变双工间隔（即，使用DL和UL频谱之间具有最小双工间隔的FDD，或者使用混合FDD， FDD以时间双工方式），当UL和DL频谱之间的频谱间隔低于某个最小阈值时，还提供了实现E-FDD的信令增强。

4. 发明授权

US09007939B2 Method and apparatus for enabling secondary usage of licensed cellular spectrum 有权
标题翻译：允许二次使用许可的蜂窝频谱的方法和装置
公开(公告)号：US09007939B2
公开(公告)日：2015-04-14
申请号：US13514728
申请日：2010-12-10
申请人： Alexander Reznik , Amith V. Chincholi , Alpaslan Demir , Jean-Louis Gauvreau , James M. Miller
发明人： Alexander Reznik , Amith V. Chincholi , Alpaslan Demir , Jean-Louis Gauvreau , James M. Miller
IPC分类号： H04W16/14 , H04W24/00 , H04W72/00
CPC分类号： H04W16/14 , H04W24/00 , H04W72/00
摘要： A method and apparatus for a secondary wireless transmit/receive unit (WTRU) to use of secondary cellular spectrum are provided. The secondary WTRU monitors transmissions of a primary WTRU; determines whether to provide assistance to the primary WTRU; and in response to a determination to provide assistance, performs cooperative communications with the primary WTRU for its transmission of data to a base station. If the assistance results in the data being transmitted to the base station faster than it would have with out assistance, the secondary WTRU may utilize uplink resources originally intended for the primary WTRU.
摘要翻译：提供了用于辅助无线发射/接收单元（WTRU）使用二次蜂窝频谱的方法和装置。二级WTRU监视主WTRU的传输; 确定是否向主WTRU提供协助; 并且响应于提供帮助的确定，与主WTRU进行协作通信以将其数据传送到基站。如果辅助导致数据被发送到基站比在外部协助方面更快，则辅助WTRU可以利用原始用于主WTRU的上行链路资源。

5. 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。

6. 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。

7. 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。

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. 发明授权

US07460614B2 Method and system for adjusting the amplitude and phase characteristics of real and imaginary signal components of complex signals processed by an analog radio transmitter 失效
标题翻译：用于调整由模拟无线电发射机处理的复数信号的实信号和虚信号分量的振幅和相位特性的方法和系统
公开(公告)号：US07460614B2
公开(公告)日：2008-12-02
申请号：US10740047
申请日：2003-12-18
申请人： Alpaslan Demir , Leonid Kazakevich , Kenneth P. Kearney
发明人： Alpaslan Demir , Leonid Kazakevich , Kenneth P. Kearney
IPC分类号： H04B1/00 , H04L27/00 , H04L27/36
CPC分类号： H03C3/406 , H04B1/30
摘要： A method and system for determining amplitude and phase compensation values used to adjust the amplitude and phase characteristics of real and imaginary signal components of complex signals processed by an analog radio transmitter. The compensation values may be determined in response to detecting a significant temperature change in the transmitter. Corresponding amplitude and phase adjustment signals having levels that correspond to the compensation values are provided to respective amplitude and phase imbalance compensation modules to adjust the amplitude and phase characteristics of at least one of the real and imaginary signal components.
摘要翻译：用于确定用于调整由模拟无线电发射机处理的复信号的实信号和虚信号分量的幅度和相位特性的幅度和相位补偿值的方法和系统。可以响应于检测到发射器中的明显的温度变化来确定补偿值。具有对应于补偿值的电平的对应幅度和相位调整信号被提供给相应的幅度和相位不平衡补偿模块，以调整实信号分量和虚信号分量中的至少一个的振幅和相位特性。

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