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1. 发明申请

WO2006052596A3 ADAPTIVE EQUALIZER WITH A DUAL-MODE ACTIVE TAPS MASK GENERATOR AND A PILOT REFERENCE SIGNAL AMPLITUDE CONTROL UNIT 审中-公开
标题翻译：具有双模主动式屏蔽发生器和引导参考信号幅度控制单元的自适应均衡器
公开(公告)号：WO2006052596A3
公开(公告)日：2006-12-14
申请号：PCT/US2005039635
申请日：2005-11-02
申请人： INTERDIGITAL TECH CORP , PIETRASKI PHILIP J , BELURI MIHAELA , DEMIR ALPASLAN , PAN JUNG-LIN , STERNBERG GREGORY S , YANG RUI , LI BIN
发明人： PIETRASKI PHILIP J , BELURI MIHAELA , DEMIR ALPASLAN , PAN JUNG-LIN , STERNBERG GREGORY S , YANG RUI , LI BIN
IPC分类号： H03H7/30 , G06F17/10 , H03K5/159 , H04B1/10 , H04B3/14
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：公开了一种自适应均衡器，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。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，开关和导频幅度参考单元，用于最小化均衡器滤波器的动态范围。当由均衡器滤波器输出的未掩蔽信号被开关选择以产生馈送到均衡器抽头更新单元的误差信号时，使用动态掩码向量来掩蔽由均衡器抽头更新单元产生的有源抽头。当由均衡器滤波器输出的掩蔽信号被用于生成误差信号时，使用固定掩蔽矢量来掩蔽由均衡器抽头更新单元生成的有效抽头。

2. 发明申请

WO2006052398A3 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：WO2006052398A3
公开(公告)日：2007-05-31
申请号：PCT/US2005037416
申请日：2005-10-19
申请人： INTERDIGITAL TECH CORP , PIETRASKI PHILIP J , YANG RUI , BELURI MIHAELA , DEMIR ALPASLAN
发明人： PIETRASKI PHILIP J , YANG RUI , BELURI MIHAELA , DEMIR ALPASLAN
IPC分类号： H04B1/00 , H04L27/06
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产生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。

3. 发明申请

WO2006052404A3 METHOD AND APPARATUS FOR ESTIMATING THE STEP-SIZE OF AN ADAPTIVE EQUALIZER 审中-公开
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：WO2006052404A3
公开(公告)日：2007-02-22
申请号：PCT/US2005037602
申请日：2005-10-20
申请人： INTERDIGITAL TECH CORP , PIETRASKI PHILIP J , BELURI MIHAELA , DEMIR ALPASLAN
发明人： PIETRASKI PHILIP J , BELURI MIHAELA , DEMIR ALPASLAN
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, a, used by the adaptive equalizer to update the filter tap coefficient.
摘要翻译：用于控制结合在收发器（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通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μ和由自适应均衡器使用的滤波器抽头泄漏因子参数a，以更新滤波器抽头系数。

4. 发明申请

WO2012109195A3 METHOD AND APPARATUS FOR OPERATING SUPPLEMENTARY CELLS IN LICENSED EXEMPT SPECTRUM 审中-公开
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：WO2012109195A3
公开(公告)日：2013-05-02
申请号：PCT/US2012024079
申请日：2012-02-07
申请人： INTERDIGITAL PATENT HOLDINGS , GAUVREAU JEAN-LOUIS , FREDA MARTINO M , LIN ZINAN , MURRAY JOSEPH M , YE CHUNXUAN , BALA ERDEM , BELURI MIHAELA C , CASTOR DOUGLAS R , CHINCHOLI AMITH V , CUFFARO ANGELO A , DAI YUYING , DEMIR ALPASLAN , GREDONE JOSEPH W , YANG RUI , MA LIANGPING , DIGIROLAMO ROCCO , TOUAG ATHMANE , PURKAYASTHA DEBASHISH
发明人： GAUVREAU JEAN-LOUIS , FREDA MARTINO M , LIN ZINAN , MURRAY JOSEPH M , YE CHUNXUAN , BALA ERDEM , BELURI MIHAELA C , CASTOR DOUGLAS R , CHINCHOLI AMITH V , CUFFARO ANGELO A , DAI YUYING , DEMIR ALPASLAN , GREDONE JOSEPH W , YANG RUI , MA LIANGPING , DIGIROLAMO ROCCO , TOUAG ATHMANE , PURKAYASTHA DEBASHISH
IPC分类号： H04W16/14 , H04B7/26 , H04L5/06 , H04L5/14 , H04W16/24 , H04W72/08
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。

5. 发明申请

WO2004073321A3 INITIAL CELL SEARCH IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：无线通信系统中的初始单元搜索
公开(公告)号：WO2004073321A3
公开(公告)日：2004-12-09
申请号：PCT/US2004003207
申请日：2004-02-05
申请人： INTERDIGITAL TECH CORP , DEMIR ALPASLAN , GRIECO DONALD M , HAIM JOHN W , BEDNARZ ANDREW F , PIETRASKI PHILIP J , GUCCIONE LOUIS J , CHITRAPU PRABHAKAR R
发明人： DEMIR ALPASLAN , GRIECO DONALD M , HAIM JOHN W , BEDNARZ ANDREW F , PIETRASKI PHILIP J , GUCCIONE LOUIS J , CHITRAPU PRABHAKAR R
IPC分类号： H04B1/707 , H04B7/26 , H04J3/06 , H04L7/02 , H04L7/10 , H04W48/16 , H04W56/00
CPC分类号： H04B1/7083 , H04B1/70735 , H04B1/70755 , H04B1/709 , H04B2201/70701 , H04W48/16 , H04W56/00
摘要： A method and system for performing initial cell search is disclosed. Step 1 (208) processing is preformed to detect a peak primary synchronization code (PSC) location (i.e. chip offset or chip location). Step 2 (210) processing is performed to obtain the toffset and code group. Step 3 (212) processing is performed to identify the midamble of a base station with which the WTRU performing the initial cell search may synchronize with.
摘要翻译：公开了一种用于执行初始小区搜索的方法和系统。执行步骤1（208）处理以检测峰值主同步码（PSC）位置（即码片偏移或码片位置）。执行步骤2（210）处理以获得折射和代码组。执行步骤3（212）处理以识别执行初始小区搜索的WTRU可与其同步的基站的中置码。

6. 发明申请

WO2005002112A3 DIGITAL BASEBAND SYSTEM AND PROCESS FOR COMPENSATING FOR ANALOG RADIO TRANSMITTER IMPAIRMENTS 审中-公开
标题翻译：数字基带系统和模拟无线电发射机补偿补偿方法
公开(公告)号：WO2005002112A3
公开(公告)日：2005-12-01
申请号：PCT/US2004014615
申请日：2004-05-10
申请人： INTERDIGITAL TECH CORP , DEMIR ALPASLAN , KAZAKEVICH LEONID , KEARNEY KENNETH P
发明人： DEMIR ALPASLAN , KAZAKEVICH LEONID , KEARNEY KENNETH P
IPC分类号： H03F1/32 , H04B1/04 , H04B1/10 , H04B1/06 , H04B17/00
CPC分类号： H04B1/0475 , H03F1/3241 , H03F1/3294 , H03F1/34 , H03F3/24 , H03F2200/462 , H03F2200/465 , H03F2200/468 , H04B2001/0425 , H04B2001/0433
摘要： In order to compensate for performance degradation caused by inferior low-cost analog radio component tolerances of an analog radio, a wireless communication transmitter employs a control process to implement numerous digital signal processing (DSP) techniques to compensate for deficiencies of such analog components so that modern specifications may be relaxed. By monitoring a plurality of parameters associated with the analog radio, such as temperature, bias current or the like, enhanced phase and amplitude compensation, as well as many other radio frequency (RF) parameters may be implemented.
摘要翻译：为了补偿由模拟无线电的低成本模拟无线电组件公差的劣化引起的性能下降，无线通信发射机采用控制过程来实现许多数字信号处理（DSP）技术来补偿这种模拟组件的缺陷，使得现代规格可能放松。通过监视与诸如温度，偏置电流等的模拟无线电相关联的多个参数，可以实现增强的相位和幅度补偿以及许多其它射频（RF）参数。

7. 发明申请

WO2005107060A3 METHOD AND SYSTEM FOR COMPENSATING FOR PHASE VARIATIONS CAUSED BY TRANSMITTER ACTIVATION 审中-公开
标题翻译：用于补偿由发射器激活引起的相位变化的方法和系统
公开(公告)号：WO2005107060A3
公开(公告)日：2008-07-24
申请号：PCT/US2005009432
申请日：2005-03-21
申请人： INTERDIGITAL TECH CORP , KAZAKEVICH LEONID , HAQUE TANBIR , DEMIR ALPASLAN , TROIANO ROBERT
发明人： KAZAKEVICH LEONID , HAQUE TANBIR , DEMIR ALPASLAN , TROIANO ROBERT
IPC分类号： H04B1/04 , H03C1/62 , H03F1/02 , H03F1/06 , H03F1/14 , H03F1/30 , H03F3/24 , H04K1/02
CPC分类号： H03F3/24 , H03F1/0205 , H03F1/0211 , H03F1/14 , H03F1/305 , H03F2200/336
摘要： A method and apparatus that reduces the amount of constellation rotation due to power amplifier (PA 125) insertion phase variation during activation (i.e., turn on) of a transmitter (100). This is accomplished by applying an instantaneous phase rotation (175) during the transmitter turn on at digital baseband (165, 170) to counteract and minimize unwanted phase variations.
摘要翻译：一种减少由于功率放大器（PA 125）在发射机（100）的激活（即导通）期间的插入相位变化引起的星座旋转量的方法和装置。这是通过在数字基带（165,170）处的发射机接通期间施加瞬时相位旋转（175）来实现的，以抵消并最小化不期望的相位变化。

8. 发明申请

WO2004066543A3 UNSUITABLE CELL EXCLUSION IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：无线通信系统中的不可排除的单元排除
公开(公告)号：WO2004066543A3
公开(公告)日：2004-11-04
申请号：PCT/US2004001963
申请日：2004-01-23
申请人： INTERDIGITAL TECH CORP , DEMIR ALPASLAN , GRIECO DONALD M , HAIM JOHN W , BEDNARZ ANDREW F
发明人： DEMIR ALPASLAN , GRIECO DONALD M , HAIM JOHN W , BEDNARZ ANDREW F
IPC分类号： H04L12/56 , H04W48/02 , H04W48/10 , H04W48/16 , H04W56/00 , H04Q7/20
CPC分类号： H04W48/10 , H04W48/02 , H04W48/16 , H04W56/00
摘要： A method and system for performing initial cell search in wireless communication system wherein unsuitable cells are excluded is disclosed. Stored frequencies are searched exhaustively and initial frequencies are search non-exhaustively. Initial frequencies may be searched exhaustively in certain circumstances. When performing exhaustive initial cell searches, primary synchronization codes that lead to unsuitable cells are excluded from subsequent initial cell searches performed on the same frequency.
摘要翻译：公开了一种在无线通信系统中执行初始小区搜索的方法和系统，其中排除不适合的小区。存储的频率被彻底地搜索，并且初始频率被非穷尽地搜索。在某些情况下，可能会彻底地搜索初始频率。当执行穷尽的初始小区搜索时，导致不适合小区的主同步码被排除在对相同频率执行的后续初始小区搜索中。

9. 发明申请

WO2005006567A3 DIGITAL BASEBAND RECEIVER INCLUDING A HIGH PASS FILTER COMPENSATION MODULE FOR SUPPRESSING GROUP DELAY VARIATION DISTORTION INCURRED DUE TO ANALOG HIGH PASS FILTER DEFICIENCIES 审中-公开
标题翻译：数字基带接收器，包括高通滤波器补偿模块，用于抑制模拟高通滤波器缺陷引起的组延迟变差失真
公开(公告)号：WO2005006567A3
公开(公告)日：2006-03-30
申请号：PCT/US2004015800
申请日：2004-05-20
申请人： INTERDIGITAL TECH CORP , DEMIR ALPASLAN , KAZAKEVICH LEONID , HAQUE TANBIR
发明人： DEMIR ALPASLAN , KAZAKEVICH LEONID , HAQUE TANBIR
IPC分类号： H03D3/00
CPC分类号： H03D3/009
摘要： A digital baseband (DBB) radio frequency (RF) receiver (105) includes a digital high pass filter compensation (HPFC) module (205) used to suppress group delay variation distortion caused by using low cost analog high pass filters (HPFO) (175A, 175B, 185A, 185B) in the receiver. The digital HPFC module (205) reduces a cutoff frequency, established by the HPFs for the real and imaginary signal component frequency domain responses by providing a first compensation signal having a first predetermined value (K1). The digital HPFC module adjusts the gain of the high pass response of the real and imaginary signal component frequency domains by providing a second compensation signal having a second predetermined value (K2).
摘要翻译：数字基带（RFB）射频（RF）接收机（105）包括数字高通滤波器补偿（HPFC）模块（205），用于抑制使用低成本模拟高通滤波器（HPFO）（175A）引起的群延迟变化失真，175B，185A，185B）。数字HPFC模块（205）通过提供具有第一预定值（K1）的第一补偿信号来减少由HPF为实信号分量和虚信号分量频域响应建立的截止频率。数字HPFC模块通过提供具有第二预定值（K2）的第二补偿信号来调整实信号分量频域和虚信号分量频域的高通响应的增益。

10. 发明申请

WO2005002063A3 METHOD AND SYSTEM FOR SUPPRESSING CARRIER LEAKAGE 审中-公开
标题翻译：用于抑制载波泄漏的方法和系统
公开(公告)号：WO2005002063A3
公开(公告)日：2005-10-13
申请号：PCT/US2004013486
申请日：2004-04-30
申请人： INTERDIGITAL TECH CORP , DEMIR ALPASLAN , KAZAKEVICH LEONID , HAQUE TANBIR
发明人： DEMIR ALPASLAN , KAZAKEVICH LEONID , HAQUE TANBIR
IPC分类号： H03C3/40 , H04B1/30 , H04L27/00 , H04L27/04
CPC分类号： H04B1/30 , H03C3/406 , H04L2027/0016 , H04L2027/0018
摘要： A method and system for determining at least one DC offset compensation value used to suppress carrier leakage occurring on real (184) and imaginary (186) signal paths in an analog radio transmitter when a significant temperature change (168) in the transmitter is detected. At least one DC offset signal having a level that corresponds to the at least one DC offset compensation value is provided to a digital DC offset compensation module which adjusts the DC level of at least one of the real and imaginary signal paths (184 and 186).
摘要翻译：一种用于当检测到发射机中的显着温度变化（168）时，确定至少一个DC偏移补偿值的方法和系统，所述至少一个DC偏移补偿值用于抑制在模拟无线电发射机中实际（184）和虚（186）信号路径上发生的载波泄漏。具有对应于至少一个DC偏移补偿值的电平的至少一个DC偏移信号被提供给数字DC偏移补偿模块，其调整实信号路径和虚信号路径（184和186）中的至少一个的DC电平，。

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