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11. 发明申请

WO2006052596A2 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：具有双模式有源TAPS MASK发生器和引导参考信号放大器控制单元的自适应均衡器
公开(公告)号：WO2006052596A2
公开(公告)日：2006-05-18
申请号：PCT/US2005/039635
申请日：2005-11-02
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , 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
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。

12. 发明申请

WO2007109220A2 METHOD AND APPARATUS FOR PERFORMING A POWER EFFICIENT CELL SEARCH IN A MULTI-CELL WIRELESS COMMUNICATION SYSTEM 审中-公开
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设备
公开(公告)号：WO2007109220A2
公开(公告)日：2007-09-27
申请号：PCT/US2007/006784
申请日：2007-03-19
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , MONFET, Frederic , DEMIR, Alpaslan , RICHARDS, Mark, L.
发明人： MONFET, Frederic , DEMIR, Alpaslan , RICHARDS, Mark, L.
IPC分类号： H04B1/707
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效率小区搜索的方法和设备。具有存储优先化先前排名最高的小区标识（ID）的小区标识列表的存储器的无线发射/接收单元（WTRU）被用于执行小区搜索。选择接收信号上的主同步码（PSC）相关峰值位置。公共导频信道（CPICH）相关值通过基于小区标识列表上的第一小区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，从而指示第一小区ID是新发现的小区ID，或者如果达到小区标识列表中的最后一个小区ID，则做出关于是否存在的附加确定列表中的多个单元ID具有相同的时间。

13. 发明申请

WO2006052404A2 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：WO2006052404A2
公开(公告)日：2006-05-18
申请号：PCT/US2005/037602
申请日：2005-10-20
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , PIETRASKI, Philip, J. , BELURI, Mihaela , DEMIR, Alpaslan
发明人： PIETRASKI, Philip, J. , BELURI, Mihaela , DEMIR, Alpaslan
IPC分类号： H03D1/04 , 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。

14. 发明申请

WO2004066543A2 UNSUITABLE CELL EXCLUSION IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：无线通信系统中的无用单元排除
公开(公告)号：WO2004066543A2
公开(公告)日：2004-08-05
申请号：PCT/US2004/001963
申请日：2004-01-23
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , 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： H04L
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：公开了一种用于在无线通信系统中执行初始小区搜索的方法和系统，其中不适合的小区被排除。存储的频率被彻底搜索，并且初始频率被非穷举地搜索。在某些情况下可以彻底地搜索初始频率。当执行穷举的初始小区搜索时，导致不合适小区的主同步码被从在相同频率上执行的后续初始小区搜索中排除。

15. 发明申请

WO2006052398A2 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：WO2006052398A2
公开(公告)日：2006-05-18
申请号：PCT/US2005/037416
申请日：2005-10-19
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , 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： H03H7/40
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生成耙式接收器手指权重。基于手指权重中的至少一个产生估计的频率误差信号。

16. 发明申请

WO2004073321A2 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：WO2004073321A2
公开(公告)日：2004-08-26
申请号：PCT/US2004/003207
申请日：2004-02-05
申请人： INTERDIGITAL TECHNOLOGY CORPORATION , 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： H04Q
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 processing is preformed to detect a peak primary synchronization code (PSC) location (i.e. chip offset or chip location). Step 2 processing is performed to obtain the t offset and code group. Step 3 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处理以获得折射和代码组。执行步骤3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间码。

17. 发明申请

WO2012118792A1 METHOD AND APPARATUS FOR SYNCHRONIZING NODE TRANSMISSIONS IN A NETWORK 审中-公开
标题翻译：用于同步网络中的节点传输的方法和装置
公开(公告)号：WO2012118792A1
公开(公告)日：2012-09-07
申请号：PCT/US2012/026918
申请日：2012-02-28
申请人： INTERDIGITAL PATENT HOLDINGS, INC. , FREDA, Martino M. , DEMIR, Alpaslan , GAUVREAU, Jean-Louis
发明人： FREDA, Martino M. , DEMIR, Alpaslan , GAUVREAU, Jean-Louis
IPC分类号： H04W84/18 , H04W76/02 , H04W74/00
CPC分类号： H04W56/0015 , H04W48/12 , H04W48/16 , H04W72/1221 , H04W74/0833 , H04W84/12
摘要： A method and apparatus are described for synchronizing a network. A plurality of existing nodes in the network may transmit beacons in accordance with a round-robin scheduling sequence. A new joining node may receive a beacon from a specific one of the existing nodes during a beacon interval, and transmit a join beacon frame during the beacon interval after waiting a random period of time. The specific existing node may receive the join beacon frame and transmit a notification to the other existing nodes in the network indicating that a new node is joining the network. Alternatively, the existing nodes may transmit a primary synchronization sequence (PSS) and a secondary synchronization sequence (SSS). After a new node receives the PSS and SSS from a specific one of the existing nodes, the new node may generate a random access channel (RACH) preamble indicating that it desires to join the network.
摘要翻译：描述了一种用于同步网络的方法和装置。网络中的多个现有节点可以根据循环调度序列发送信标。新的加入节点可以在信标间隔期间从特定的一个现有节点接收信标，并且在等待随机时间段之后的信标间隔期间发送连接信标帧。特定的现有节点可以接收连接信标帧，并向网络中的其他现有节点发送指示新节点正在加入网络的通知。或者，现有节点可以发送主同步序列（PSS）和辅同步序列（SSS）。在新节点从现有节点中的特定一个节点接收到PSS和SSS之后，新节点可以生成指示其希望加入网络的随机接入信道（RACH）前导码。

18. 发明申请

WO2012061383A1 DYNAMIC SPECTRUM MANAGEMENT 审中-公开
标题翻译：动态频谱管理
公开(公告)号：WO2012061383A1
公开(公告)日：2012-05-10
申请号：PCT/US2011/058781
申请日：2011-11-01
申请人： INTERDIGITAL PATENT HOLDINGS, INC. , FREDA, Martino M. , DEMIR, Alpaslan , TOUAG, Athmane , LEITHEAD, Phillip L. , CHINCHOLI, Amith V. , GOPALAN, Ramya , GOPALAN, Sowmya , GAUVREAU, Jean-Louis
发明人： FREDA, Martino M. , DEMIR, Alpaslan , TOUAG, Athmane , LEITHEAD, Phillip L. , CHINCHOLI, Amith V. , GOPALAN, Ramya , GOPALAN, Sowmya , GAUVREAU, Jean-Louis
IPC分类号： H04W16/14
CPC分类号： H04W24/10 , H04B1/0067 , H04W72/00 , H04W72/0453
摘要： A wireless transmit/receive unit (WTRU) and a dynamic spectrum management (DSM) engine are described. The WTRU includes a transceiver, a radio frequency (RF) spectrum sensing unit and a processing unit. The transceiver transmits over a wireless link. The RF spectrum sensing unit measures information indicative of usage of a spectrum by other devices. The processing unit detects a change in performance of the wireless link. The processing unit also controls the transceiver to transmit a notification to a DSM engine indicating that the change in the performance of the wireless link was detected on a condition that the processing unit detects the change in performance of the wireless link. The processing unit also receives a sensing task request for the WTRU to measure the information indicative of the usage of the spectrum by other devices based on the notification transmitted to the DSM engine indicating that the change in the performance of the wireless link was detected.
摘要翻译：描述了无线发射/接收单元（WTRU）和动态频谱管理（DSM）引擎。 WTRU包括收发机，射频（RF）频谱感测单元和处理单元。收发器通过无线链路传输。 RF频谱感测单元测量指示其他设备使用频谱的信息。处理单元检测无线链路的性能变化。处理单元还控制收发器向DSM引擎发送指示在处理单元检测到无线链路的性能变化的条件下检测到无线链路的性能的改变的通知。处理单元还接收针对WTRU的感测任务请求，用于基于发送到DSM引擎的指示测量出无线链路的性能的变化来测量指示其他设备使用频谱的信息的信息。

19. 发明申请

WO2011146578A1 METHOD AND APPARATUS FOR DYNAMIC SPECTRUM MANAGEMENT 审中-公开
标题翻译：动态光谱管理方法与装置
公开(公告)号：WO2011146578A1
公开(公告)日：2011-11-24
申请号：PCT/US2011/036940
申请日：2011-05-18
申请人： INTERDIGITAL PATENT HOLDINGS, INC. , YE, Chunxuan , DEMIR, Alpaslan
发明人： YE, Chunxuan , DEMIR, Alpaslan
IPC分类号： H04L29/08 , H04W16/14
CPC分类号： H04B7/155 , H04B17/309 , H04W24/00 , H04W84/047
摘要： Methods and apparatus for dynamic spectrum management are disclosed. A node receives a request for sensing related information. In response to receiving the request, the node transmits the sensing related information. The sensing related information may include at least one of information about data fusion methods supported by the node, information about relaying methods supported by the node and information about at least one other node that is reachable from the node.
摘要翻译：公开了动态频谱管理的方法和装置。节点接收感测相关信息的请求。响应于接收到请求，节点发送感测相关信息。感测相关信息可以包括关于由节点支持的数据融合方法的信息中的至少一个，关于由节点支持的中继方法的信息以及关于可从节点到达的至少一个其他节点的信息。

20. 发明申请

WO2011060376A1 COORDINATION OF SILENT PERIODS FOR DYNAMIC SPECTRUM MANAGER (DSM) 审中-公开
标题翻译：动态频谱管理器（DSM）的静电期协调
公开(公告)号：WO2011060376A1
公开(公告)日：2011-05-19
申请号：PCT/US2010/056738
申请日：2010-11-15
申请人： INTERDIGITAL PATENT HOLDINGS, INC. , FREDA, Martino M. , DEMIR, Alpaslan , CHINCHOLI, Amith V. , REZNIK, Alexander , KWAK, Joseph A.
发明人： FREDA, Martino M. , DEMIR, Alpaslan , CHINCHOLI, Amith V. , REZNIK, Alexander , KWAK, Joseph A.
IPC分类号： H04W16/14 , H04W72/12
CPC分类号： H04W72/04 , H04W16/14 , H04W24/10 , H04W72/082
摘要： A method for use in a Dynamic Spectrum Manager (DSM) for coordinating asynchronous silent periods in a network, the method comprising detecting a primary user in the network, transmitting a Silent Period Start Control Message to one or more cognitive radio (CR) nodes in the network, wherein the message indicates the start and duration of a silent period and initiates spectrum sensing,receiving a Measurement Report Control Message from the one or more CR nodes in the network indicating results of spectrum sensing, and transmitting a message to the one or more CR nodes, wherein the message instructs the one or more CR nodes to move to a different frequency based on the spectrum sensing results.
摘要翻译：一种在动态频谱管理器（DSM）中用于协调网络中的异步静默时段的方法，所述方法包括：检测所述网络中的主用户，向所述网络中的一个或多个认知无线电（CR）节点发送静默时段起始控制消息，所述网络，其中所述消息指示静默时段的开始和持续时间并且发起频谱感测，从所述网络中的所述一个或多个CR节点接收指示频谱感测结果的测量报告控制消息，以及将消息发送到所述一个或更多的CR节点，其中消息指示一个或多个CR节点基于频谱感测结果移动到不同的频率。

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