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81. 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。

82. 发明申请

US20090316768A1 METHOD AND APPARATUS FOR GENERATING EQUALIZER FILTER TAP COEFFICIENTS 审中-公开
标题翻译：用于产生均衡器滤波器系数的方法和装置
公开(公告)号：US20090316768A1
公开(公告)日：2009-12-24
申请号：US12490614
申请日：2009-06-24
申请人： Philip J. Pietraski , Mihaela Beluri
发明人： Philip J. Pietraski , Mihaela Beluri
IPC分类号： H03K5/159
CPC分类号： H04L25/03038 , H04B1/7097 , H04L2025/03375 , H04L2025/03477 , H04L2025/03617
摘要： A method and apparatus generating an error signal and an update vector signal used to generate filter tap coefficients for an equalizer filter residing in an equalizer. The equalizer filter outputs an equalized signal in response to receiving a sample data stream. The error signal is generated by down-sampling the equalized signal, subtracting the equalized signal from a reference signal, and filtering and down-sampling the resulting signal. Simultaneously, the update vector signal is generated by converting scalar samples of the sample data stream to a data vector signal and descrambling, filtering, and down-sampling the data vector signal. A tap coefficients generator is used to generate the filter tap coefficients for updating the equalizer filter based on the error signal and the update vector signal.
摘要翻译：一种产生误差信号的方法和装置，以及用于产生驻留在均衡器中的均衡器滤波器的滤波器抽头系数的更新矢量信号。均衡器滤波器响应于接收样本数据流而输出均衡的信号。通过对均衡信号进行下采样，从参考信号中减去均衡信号，并对结果信号进行滤波和下采样，产生误差信号。同时，通过将样本数据流的标量样本转换为数据矢量信号并对数据矢量信号进行解扰，滤波和下采样来生成更新矢量信号。抽头系数发生器用于基于误差信号和更新矢量信号产生用于更新均衡器滤波器的滤波器抽头系数。

83. 发明申请

US20090074111A1 WIRELESS COMMUNICATION METHOD AND APPARATUS FOR PERFORMING POST-DETECTION CONSTELLATION CORRECTION 失效
标题翻译：无线通信方法和设备，用于执行后检测信号校正
公开(公告)号：US20090074111A1
公开(公告)日：2009-03-19
申请号：US12274806
申请日：2008-11-20
申请人： Philip J. Pietraski
发明人： Philip J. Pietraski
IPC分类号： H04L27/06 , H04L27/08
CPC分类号： H04L27/3863 , H04L27/3809 , H04L27/3872
摘要： A method and apparatus for correcting the phase and gain of data associated with a constellation pattern of a plurality of received individual symbols. Each symbol is divided into real and imaginary symbol components. The signs of the real and imaginary symbol components of each symbol are determined and used as a basis for determining whether the symbol is associated with a first or third quadrant of the constellation pattern or a second or fourth quadrant of the constellation pattern. The absolute values of the real and imaginary symbol components are determined and used to create a first sum and a second sum. A phase adjustment value θ and a gain adjustment value G are derived from the first and second sums, and are used to create a complex number. Each of the received individual symbols is multiplied by the created complex number to provide corrected constellation pattern data.
摘要翻译：一种用于校正与多个接收的单独符号的星座图案相关联的数据的相位和增益的方法和装置。每个符号被分为实数和虚数符号分量。确定每个符号的实数和虚符号分量的符号，并将其用作确定符号是否与星座图案的第一或第三象限或星座图案的第二或第四象限相关联的基础。确定实数和虚数符号分量的绝对值并用于创建第一和和第二和。相位调整值θ和增益调整值G从第一和第二和导出，并用于创建复数。将所接收的每个符号乘以所创建的复数以提供校正的星座图案数据。

84. 发明申请

US20080298522A1 METHOD AND APPARATUS FOR COMPUTING SIR OF TIME VARYING SIGNALS IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：用于计算无线通信系统中时变信号的SIR的方法和装置
公开(公告)号：US20080298522A1
公开(公告)日：2008-12-04
申请号：US12191533
申请日：2008-08-14
申请人： Philip J. Pietraski
发明人： Philip J. Pietraski
IPC分类号： H03D1/06
CPC分类号： H04L1/206 , H04B17/336
摘要： A method and apparatus for correcting symbols of a common pilot channel (CPICH) to generate an accurate signal-to-interference ratio (SIR) estimate in a wireless communication system are disclosed. In one embodiment, a non-stationary mean of a group of the CPICH symbols is estimated, the CPICH symbols are delayed, and the CPICH symbols are corrected by dividing the delayed CPICH symbols by the estimated non-stationary mean of the group of CPICH symbols. In another embodiment, a signal power estimate is generated based on the magnitude of CPICH symbols, a noise power estimate is generated by subtracting the signal power estimate from a total power estimate based on the magnitude of the CPICH symbols, and a SIR estimate is generated for symbols that have undergone a time varying gain by dividing the signal power estimate by the noise power estimate.
摘要翻译：公开了一种用于校正公共导频信道（CPICH）的符号以在无线通信系统中生成准确的信号干扰比（SIR）估计的方法和装置。在一个实施例中，估计一组CPICH符号的非平稳平均值，CPICH符号被延迟，并且通过将延迟的CPICH符号除以CPICH符号组的估计非平均平均值来校正CPICH符号。在另一个实施例中，基于CPICH符号的幅度产生信号功率估计，通过基于CPICH符号的幅度从总功率估计中减去信号功率估计来产生噪声功率估计，并且产生SIR估计对于通过将信号功率估计除以噪声功率估计而经历了时变增益的符号。

85. 发明申请

US20080181163A1 METHOD AND APPARATUS FOR MULTICASTING WITH FEEDBACK INFORMATION 失效
标题翻译：用反馈信息进行复合的方法和装置
公开(公告)号：US20080181163A1
公开(公告)日：2008-07-31
申请号：US11971161
申请日：2008-01-08
申请人： Chunxuan Ye , Alexander Reznik , Yogendra C. Shah , Philip J. Pietraski , Robert A. DiFazio
发明人： Chunxuan Ye , Alexander Reznik , Yogendra C. Shah , Philip J. Pietraski , Robert A. DiFazio
IPC分类号： H04H20/71
CPC分类号： H04L1/1628 , H04L1/1819 , H04L1/1845 , H04L1/1874 , H04L12/1868 , H04L47/10 , H04L47/14 , H04L47/15 , H04L2001/0093
摘要： A method for multicasting a packet begins by providing a buffer for each of two user equipments (UEs) in communication with a base station. A determination is made whether there is a previously unsent packet at the base station. A second determination is made whether both UE buffers are non-empty. A non-empty buffer is flushed if there is no previously unsent packet and if one of the buffers is non-empty. A packet is selected to be transmitted if there is a previously unsent packet or if both buffers are non-empty. The buffers are updated based on feedback received from the UEs.
摘要翻译：通过为与基站通信的两个用户设备（UE）中的每一个提供缓冲器，开始组播分组的方法。确定在基站是否存在先前未发送的分组。第二确定是否两个UE缓冲器都是非空的。如果没有先前未发送的数据包，并且其中一个缓冲区不为空，则将刷新非空缓冲区。如果存在先前未发送的分组或者两个缓冲区都不为空，则选择发送分组。基于从UE接收的反馈来更新缓冲器。

86. 发明申请

US20070253388A1 METHOD AND APPARATUS FOR SELECTING LINK ADAPTATION PARAMETERS FOR CDMA-BASED WIRELESS COMMUNICATION SYSTEMS 失效
标题翻译：用于选择基于CDMA的无线通信系统的链路适配参数的方法和装置
公开(公告)号：US20070253388A1
公开(公告)日：2007-11-01
申请号：US11740504
申请日：2007-04-26
申请人： Philip J. Pietraski
发明人： Philip J. Pietraski
IPC分类号： H04Q7/24
CPC分类号： H04W72/085 , H04J13/00 , H04J13/16 , H04L1/0003 , H04L1/0015 , H04L1/0025 , H04L1/0026 , H04L1/0066
摘要： A method and apparatus enhance the selection of transport block set size (TBSS), number of spreading codes, and modulation type, referred to collectively as transport format resource combination (TFRC), in a medium access control (MAC) layer for transmission of data in a code division multiple access (CDMA) wireless communication system, preferably a Universal Mobile Telecommunications Systems (UMTS) high speed downlink packet access (HSDPA) communication system. The maximum number of spreading codes available for transmission and the set of possible TFRCs are preferably determined based on a channel characteristics provided in part by a channel quality indicator (CQI). For each TBSS value in the set of possible TFRCs, a TFRC is selected with the largest number of spreading codes within the maximum number of spreading codes for which the corresponding coding rate is preferably at least ⅓. The corresponding code rate for each selected TFRCs is compared to a threshold to select a corresponding type of modulation. One of the selected TFRCs is selected to be provided to the PHY layer that best matches the CQI and preferably has a maximum TBSS.
摘要翻译：方法和装置在用于传输数据的介质访问控制（MAC）层中增强传输块集大小（TBSS），扩展码数量和调制类型的选择，统称为传输格式资源组合（TFRC）在码分多址（CDMA）无线通信系统中，优选地是通用移动电信系统（UMTS）高速下行链路分组接入（HSDPA）通信系统。可用于传输的扩展码的最大数量和可能的TFRC的集合优选地基于由信道质量指示符（CQI）部分提供的信道特性来确定。对于可能的TFRC集合中的每个TBSS值，在相应的编码速率优选地至少为1/3的扩展码的最大数目内，选择具有最大数量的扩展码的TFRC。将每个所选TFRC的相应码率与阈值进行比较以选择相应类型的调制。选择所选择的TFRC中的一个被提供给与CQI最佳匹配的PHY层，并且优选地具有最大TBSS。

87. 发明授权

US07200405B2 Method and system for providing channel assignment information used to support uplink and downlink channels 有权
标题翻译：用于提供用于支持上行链路和下行链路信道的信道分配信息的方法和系统
公开(公告)号：US07200405B2
公开(公告)日：2007-04-03
申请号：US10902740
申请日：2004-07-29
申请人： Marian Rudolf , Stephen G. Dick , Philip J. Pietraski
发明人： Marian Rudolf , Stephen G. Dick , Philip J. Pietraski
IPC分类号： H04Q7/20
CPC分类号： H04W72/0406 , H04L1/0046 , H04L1/0061 , H04L1/0072 , H04L5/0053 , H04L5/0091 , H04L5/14 , H04W48/16 , H04W72/042 , H04W72/0446 , H04W72/0453 , H04W72/14
摘要： A method and wireless communication system for providing channel assignment information used to support an uplink (UL) channel and a downlink (DL) channel. The system includes at least one Node-B and at least one wireless transmit/receive unit (WTRU). The WTRU communicates with the Node-B via a common control channel, the UL channel and the DL channel. The WTRU receives a message from the Node-B via the common control channel. The message includes an indication of whether the message is intended for assigning radio resources to the UL channel or the DL channel. The WTRU determines whether the message is intended for the WTRU and, if so, the WTRU determines whether the message is for assigning radio resources to the UL channel or the DL channel. The WTRU takes an appropriate action based on whether the message is for assigning radio resources to the UL channel or the DL channel.
摘要翻译：一种用于提供用于支持上行链路（UL）信道和下行链路（DL）信道的信道分配信息的方法和无线通信系统。该系统包括至少一个节点B和至少一个无线发射/接收单元（WTRU）。 WTRU经由公共控制信道，UL信道和DL信道与节点B通信。 WTRU经由公共控制信道从节点B接收消息。消息包括消息是否用于将无线电资源分配给UL信道或DL信道的指示。 WTRU确定消息是否针对WTRU，如果是，则WTRU确定消息是否用于向UL信道或DL信道分配无线电资源。基于该消息是否用于向UL信道或DL信道分配无线电资源，WTRU采取适当的动作。

88. 发明授权

US09008007B2 Method for signaling MU-MIMO parameters 有权
标题翻译：信令MU-MIMO参数的方法
公开(公告)号：US09008007B2
公开(公告)日：2015-04-14
申请号：US12563398
申请日：2009-09-21
申请人： Kyle Jung-Lin Pan , Guodong Zhang , Donald M. Grieco , Philip J. Pietraski
发明人： Kyle Jung-Lin Pan , Guodong Zhang , Donald M. Grieco , Philip J. Pietraski
IPC分类号： H04W4/00 , H04B7/04 , H04B7/06
CPC分类号： H04B7/0456 , H04B7/024 , H04B7/0452 , H04B7/0665 , H04W72/042
摘要： Methods for signaling multi-user multiple-input multiple output (MU-MIMO) parameters for Evolved-UTRA (E-UTRA) are disclosed. Example signaling format methods are presented that allow use of distributed virtual resource blocks (DVRB) or support of four wireless transmit/receive units (WTRUs) but maintaining a predetermined signal format size. A signaling format is also presented that signals transmission precoding matrix indexes used by all co-scheduled WTRUs.
摘要翻译：公开了用于发送用于演进UTRA（E-UTRA）的多用户多输入多输出（MU-MIMO）参数的方法。提出了允许使用分布式虚拟资源块（DVRB）或支持四个无线发射/接收单元（WTRU）但维持预定信号格式大小的示例信令格式方法。还提供了一种信号格式，用于指示由所有共同调度的WTRU使用的传输预编码矩阵索引。

89. 发明授权

US08873505B2 Method and apparatus for performing component carrier-specific reconfiguration 有权
标题翻译：用于执行分量载波特定重配置的方法和装置
公开(公告)号：US08873505B2
公开(公告)日：2014-10-28
申请号：US12722872
申请日：2010-03-12
申请人： Guodong Zhang , Kyle Jung-Lin Pan , Jean-Louis Gauvreau , Stephen E. Terry , Sung-Hyuk Shin , Paul Marinier , Shankar Somasundaram , Philip J. Pietraski , Robert L. Olesen
发明人： Guodong Zhang , Kyle Jung-Lin Pan , Jean-Louis Gauvreau , Stephen E. Terry , Sung-Hyuk Shin , Paul Marinier , Shankar Somasundaram , Philip J. Pietraski , Robert L. Olesen
IPC分类号： H04W4/00 , H04L5/00 , H04W36/00 , H04W72/08 , H04W76/04
CPC分类号： H04W52/0206 , H04B7/024 , H04L5/0035 , H04W24/10 , H04W36/0066 , H04W36/0072 , H04W36/30 , H04W72/085 , H04W74/0833 , H04W76/27 , H04W76/28 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/144 , Y02D70/166 , Y02D70/21 , Y02D70/24 , Y02D70/25
摘要： Techniques for component carrier-specific reconfiguration are disclosed. A wireless transmit/receive unit (WTRU) is capable of transmitting or receiving via multiple component carriers. The WTRU may perform component carrier reconfiguration on a component carrier basis to add, remove or replace a component carrier. Discontinuous reception (DRX) and/or discontinuous transmission (DTX) may be performed on at least one component carrier, wherein DRX and/or DTX patterns on the component carriers may not overlap each other. A random access procedure may be performed at the target cell on one component carrier while other component carriers are inactive. The component carrier-specific reconfiguration or handover of a component carrier or a channel may be implemented in coordinated multiple point transmission (CoMP), wherein a handover of a control channel, not a traffic channel, may be performed. Alternatively, a handover of a traffic channel may be performed.
摘要翻译：公开了用于分量载波特定重配置的技术。无线发射/接收单元（WTRU）能够经由多个分量载波进行发射或接收。 WTRU可以在分量载波的基础上执行分量载波重新配置以添加，移除或替换分量载波。可以在至少一个分量载波上执行不连续接收（DRX）和/或不连续传输（DTX），其中分量载波上的DRX和/或DTX模式可以彼此不重叠。可以在一个分量载波上的目标小区执行随机接入过程，而其他分量载波是无效的。可以在协调多点传输（CoMP）中实现分量载波或信道的分量载波特定重配置或切换，其中可以执行控制信道而不是业务信道的切换。或者，可以执行业务信道的切换。

90. 发明授权

US08861632B2 Method and apparatus for subcarrier and antenna selection in MIMO-OFDM system 有权
标题翻译： MIMO-OFDM系统中子载波和天线选择的方法和装置
公开(公告)号：US08861632B2
公开(公告)日：2014-10-14
申请号：US13544450
申请日：2012-07-09
申请人： Fatih M. Ozluturk , Philip J. Pietraski , Aykut Bultan
发明人： Fatih M. Ozluturk , Philip J. Pietraski , Aykut Bultan
IPC分类号： H04B7/02 , H04L5/00 , H04W52/42 , H04L1/00 , H04L25/02
CPC分类号： H04W52/262 , H04B7/046 , H04L1/0003 , H04L1/0009 , H04L5/0023 , H04L5/0025 , H04L5/0046 , H04L5/006 , H04L25/0206 , H04W52/42
摘要： A method and apparatus for radio resources control in a multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) communication system are disclosed. A channel metric is calculated for each of a plurality of transmit antennas. Sub-carriers are allocated to each transmit antenna in accordance with the channel metric of each transmit antenna. Signals are transmitted using the allocated sub-carriers at each antenna. Adaptive modulation and coding and transmit power control of each sub-carrier may be further implemented in accordance with the channel metric. Power control may be implemented per antenna basis or per sub-carrier basis. In performing power control, a subset of transmit antennas may be selected and waterpouring may be applied only to the selected antennas. Waterpouring may be based on SNR instead of channel response.
摘要翻译：公开了一种用于多输入多输出（MIMO）正交频分复用（OFDM）通信系统中的无线资源控制的方法和装置。为多个发射天线中的每一个计算信道度量。根据每个发射天线的信道度量，将子载波分配给每个发射天线。在每个天线处使用分配的子载波来发送信号。可以根据信道度量进一步实现每个子载波的自适应调制和编码和发射功率控制。功率控制可以基于每个天线或每个子载波来实现。在执行功率控制时，可以选择发射天线的子集，并且可以仅对所选择的天线进行浇水。灌水可以基于SNR而不是通道响应。

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