公开(公告)号：US07903614B2

公开(公告)日：2011-03-08

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： H04B7/216

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，在扩展码的最大数目内具有最大数量的扩展码的TFRC被选择，其中对应的编码率优选地至少为1/3。 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。

公开(公告)号：US20110038271A1

公开(公告)日：2011-02-17

申请号：US12703092

申请日：2010-02-09

申请人： Sung-Hyuk Shin ,  Guodong Zhang ,  Janet A. Stern-Berkowitz ,  Philip J. Pietraski ,  Stephen G. Dick ,  Joseph S. Levy ,  Kyle Jung-Lin Pan ,  Erdem Bala ,  Marian Rudolf ,  Stephen E. Terry ,  Chang-Soo Koo ,  Charles A. Dennean ,  Eldad M. Zeira

发明人： Sung-Hyuk Shin ,  Guodong Zhang ,  Janet A. Stern-Berkowitz ,  Philip J. Pietraski ,  Stephen G. Dick ,  Joseph S. Levy ,  Kyle Jung-Lin Pan ,  Erdem Bala ,  Marian Rudolf ,  Stephen E. Terry ,  Chang-Soo Koo ,  Charles A. Dennean ,  Eldad M. Zeira

IPC分类号： H04W24/00

CPC分类号： H04W52/365 ,  H04W52/08 ,  H04W52/10 ,  H04W52/146 ,  H04W52/16 ,  H04W52/242 ,  H04W52/281 ,  H04W72/0413 ,  H04W72/0473

摘要： A method and apparatus for determining uplink power in a wireless transmit receive unit (WTRU). The WTRU operates in a carrier aggregated system. The WTRU is configured to receive a plurality of uplink power parameters indexed to one of a plurality of uplink carriers and receive a transmit power control command indexed to the one of the plurality of uplink carriers. The WTRU is configured to determine a pathloss of the one of the plurality of uplink carriers and determine a transmit power for the one of the plurality of uplink carriers based on the plurality of power parameters, the transmit power control command, and the pathloss.

摘要翻译： 一种用于确定无线发射接收单元（WTRU）中的上行链路功率的方法和装置。 WTRU在载波聚合系统中操作。 WTRU被配置为接收索引到多个上行链路载波之一的多个上行链路功率参数，并且接收索引到该多个上行链路载波之一的发射功率控制命令。 WTRU被配置为基于多个功率参数，发射功率控制命令和路径损耗来确定多个上行链路载波中的一个的路径损耗并确定多个上行链路载波中的一个的发射功率。

公开(公告)号：US20100046673A1

公开(公告)日：2010-02-25

申请号：US12611495

申请日：2009-11-03

申请人： Bin Li ,  Gregory S. Sternberg ,  Philip J. Pietraski

发明人： Bin Li ,  Gregory S. Sternberg ,  Philip J. Pietraski

IPC分类号： H04L27/34

CPC分类号： H04L27/38 ,  H04L1/20

摘要： A method and apparatus for estimating attributes of a received signal that includes a plurality of transmitted signals are provided. The amplitude of the received signal is estimated by performing a method of demodulation based on known signal information. The amplitude of an M-ary quadrature amplitude modulated signal is estimated based upon known or ascertainable phase information regarding a plurality of transmitted symbols. The amplitude of a q-ary amplitude shift keyeing signal is estimated based upon known or ascertainable magnitude information regarding a plurality of transmitted symbols. Statistical information is also used for amplitude estimation.

摘要翻译： 提供了一种用于估计包括多个发送信号的接收信号的属性的方法和装置。 通过基于已知信号信息执行解调的方法来估计接收信号的幅度。 基于关于多个发送符号的已知或可确定的相位信息来估计M进制正交幅度调制信号的幅度。 基于关于多个发送符号的已知或可确定的幅度信息来估计q位振幅键控信号的振幅。 统计信息也用于振幅估计。

公开(公告)号：US20100035555A1

公开(公告)日：2010-02-11

申请号：US12533314

申请日：2009-07-31

申请人： Erdem Bala ,  Sung-Hyuk Shin ,  Philip J. Pietraski ,  Kalpendu R. Pasad

发明人： Erdem Bala ,  Sung-Hyuk Shin ,  Philip J. Pietraski ,  Kalpendu R. Pasad

IPC分类号： H04B15/00

CPC分类号： H04B7/024 ,  H04B7/06 ,  H04B7/0639 ,  H04B7/066

摘要： A method and apparatus are provided for multi-cell cooperation when multiple cells are cooperating to transmit data to a plurality of wireless transmit/receive units (WTRUs), and each cell is using a common precoding matrix. The level of information exchanged among the cells may depend on the particular cooperation architecture. The cells may share information such as channel state information (CSI), a channel quality indicator (CQI), or both. The cells may share rank indications reported by the WTRUs. The cells may also share the data that is being transmitted to the WTRUs. The method and apparatus may also determine precoding vectors for closed-loop precoding; a CQI, CSI and rank, and distributed space-time/frequency coding with multi-cell cooperation. The method and apparatus may also perform hybrid automatic repeat request (HARQ) with multi-cell cooperation, and downlink control signaling.

摘要翻译： 当多个小区正在协作向多个无线发射/接收单元（WTRU）发送数据时，提供了用于多小区协作的方法和装置，并且每个小区正在使用公共预编码矩阵。 在小区之间交换的信息的级别可以取决于具体的协作架构。 小区可以共享诸如信道状态信息（CSI），信道质量指示符（CQI）或两者的信息。 小区可以共享WTRU报告的秩指示。 小区还可以共享正在发送到WTRU的数据。 该方法和装置还可以确定用于闭环预编码的预编码矢量; CQI，CSI和秩，以及具有多小区协作的分布式时空/频率编码。 该方法和装置还可以执行具有多小区协作的混合自动重传请求（HARQ）和下行链路控制信令。

公开(公告)号：US20090323849A1

公开(公告)日：2009-12-31

申请号：US12491672

申请日：2009-06-25

申请人： Erdem Bala ,  Kyle Jung-Lin Pan ,  Donald Grieco ,  Philip J. Pietraski ,  Sung-Hyuk Shin

发明人： Erdem Bala ,  Kyle Jung-Lin Pan ,  Donald Grieco ,  Philip J. Pietraski ,  Sung-Hyuk Shin

IPC分类号： H03M7/00 ,  H04L27/00 ,  H04L1/02

CPC分类号： H04L25/03343 ,  H04B7/0417 ,  H04B7/0478 ,  H04B7/0626 ,  H04L5/0023 ,  H04L25/0248 ,  H04L2025/03426 ,  H04L2025/03808

摘要： A method and an apparatus for performing multiple-input multiple-output (MIMO) wireless communications are disclosed. A Node-B may receive an index to a pre-coding matrix in a single user MIMO (SU-MIMO) pre-coding codebook from wireless transmit/receive units (WTRUs) and adaptively perform one of SU-MIMO or multi-user MIMO (MU-MIMO) based on a predetermined criterion. Channel information for performing MU-MIMO may be obtained based on the pre-coding matrix of the SU-MIMO pre-coding codebook. A rank requested by the WTRU may be overridden if the unitary MU-MIMO codebook is a subset of the SU-MIMO pre-coding codebook. If not, a MU-MIMO pre-coding matrix with a largest correlation to the pre-coding matrix may be selected. A WTRU may send a pre-coding matrix for transmission to the WTRU along with a preferred interference matrix. A WTRU may send rank information and multiple right singular vectors for MU-MIMO.

摘要翻译： 公开了一种用于执行多输入多输出（MIMO）无线通信的方法和装置。 节点B可以从无线发射/接收单元（WTRU）接收单用户MIMO（SU-MIMO）预编码码本中的预编码矩阵的索引，并且自适应地执行SU-MIMO或多用户MIMO （MU-MIMO）。 可以基于SU-MIMO预编码码本的预编码矩阵来获得用于执行MU-MIMO的信道信息。 如果单一MU-MIMO码本是SU-MIMO预编码码本的子集，那么由WTRU请求的等级可以被覆盖。 如果不是，则可以选择与预编码矩阵具有最大相关性的MU-MIMO预编码矩阵。 WTRU可以发送用于传输到WTRU的预编码矩阵以及优选的干扰矩阵。 WTRU可以发送用于MU-MIMO的秩信息和多个右奇异向量。

公开(公告)号：US07630433B2

公开(公告)日：2009-12-08

申请号：US12168314

申请日：2008-07-07

申请人： Philip J. Pietraski

发明人： Philip J. Pietraski

IPC分类号： H03H7/30

CPC分类号： H03H21/0043 ,  H03H2021/0056 ,  H04L25/0226 ,  H04L25/03019 ,  H04L2025/03496 ,  H04L2025/03611

摘要： The present invention is related to an enhanced equalizer using channel estimation. A scaled version of a channel estimate is used as an expected average behavior of the product of a transmitted signal and a received signal to implement Griffith algorithm. The present invention also uses advance or prediction of a channel estimate to overcome the lag problem inherent in a least means square (LMS) algorithm in a time varying channel. Therefore, the present invention enables the use of a small step size while attaining the same tracking capability with a large step size. A channel estimate at some time in the future is used for updating equalizer filter tap coefficients. This may be performed with a prediction filter. Alternatively, a delay may be introduced in the input data to the filter tap coefficient generator, which makes a channel estimate look like a prediction to the filter tap coefficient generator.

摘要翻译： 本发明涉及使用信道估计的增强均衡器。 信道估计的缩放版本被用作发射信号和接收信号的乘积的预期平均行为以实现Griffith算法。 本发明还使用信道估计的提前或预测来克服时变信道中最小均方（LMS）算法中固有的滞后问题。 因此，本发明能够在以大的步长获得相同的跟踪能力的同时使用小的步长。 将来某个时间的信道估计用于更新均衡器滤波器抽头系数。 这可以用预测滤波器来执行。 或者，可以将输入数据中的延迟引入到滤波器抽头系数发生器，这使得信道估计看起来像对滤波器抽头系数发生器的预测。

公开(公告)号：US20090290630A1

公开(公告)日：2009-11-26

申请号：US12512203

申请日：2009-07-30

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： H03K5/159 ,  H03K5/08 ,  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。

公开(公告)号：US07599668B2

公开(公告)日：2009-10-06

申请号：US11202570

申请日：2005-08-12

申请人： Fatih Ozluturk ,  Philip J. Pietraski

发明人： Fatih Ozluturk ,  Philip J. Pietraski

IPC分类号： H04B1/02

CPC分类号： H04B7/10 ,  H01Q21/29 ,  H01Q25/00 ,  H04B7/04 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/066 ,  H04B7/0691 ,  H04B7/0697

摘要： The present invention is related to a method and apparatus for reducing antenna correlation between multiple antennas. A transmitter generates at least two beams with a plurality of antennas. The generated beams are spatially separated to point away each other. Therefore, the transmitted signals travel through different channel conditions and arrive at a receiver mutually uncorrelated. The beams may be generated by antennas having different antenna pattern, or by an array antenna. The beams may be polarized differently. The schemes may be implemented on a subcarrier basis in an orthogonal frequency division multiplexing (OFDM) system. Trellis coded mapping may be utilized for adjacent symbols to be mapped to antennas with low correlation.

摘要翻译： 本发明涉及减少多个天线之间的天线相关性的方法和装置。 发射机产生具有多个天线的至少两个波束。 产生的光束在空间上分离以彼此远离。 因此，所发送的信号通过不同的信道条件传播并且到达接收机相互不相关。 波束可以由具有不同天线图案的天线或阵列天线产生。 梁可以以不同的方式极化。 这些方案可以在正交频分复用（OFDM）系统中以子载波为基础来实现。 网格编码映射可以用于相邻符号以被映射到具有低相关性的天线。

公开(公告)号：US20090180528A1

公开(公告)日：2009-07-16

申请号：US12415023

申请日：2009-03-31

申请人： Jung-Lin Pan ,  Mihaela Beluri ,  Philip J. Pietraski

发明人： Jung-Lin Pan ,  Mihaela Beluri ,  Philip J. Pietraski

IPC分类号： H04L27/01

CPC分类号： H04L25/03038 ,  H04B1/712 ,  H04B2201/70701 ,  H04L25/03044 ,  H04L2025/03375 ,  H04L2025/03477 ,  H04L2025/03617

摘要： A normalized least means square (NLMS) equalizer including two equalizer filters is disclosed. In one embodiment, a single correction term generator is used to generate correction terms for tap coefficient updates of each of the equalizer filters based on a pilot signal. In another embodiment, two different correction term generators are used to generate correction terms for each of the equalizer filters, whereby one of the correction term generators uses data received from a hard decision unit at the output of one of the equalizer filters to generate correction terms for both of the equalizer filters.

摘要翻译： 公开了包括两个均衡器滤波器的归一化最小均方（NLMS）均衡器。 在一个实施例中，单个校正项生成器用于基于导频信号产生每个均衡器滤波器的抽头系数更新的校正项。 在另一个实施例中，使用两个不同的校正项发生器来产生每个均衡器滤波器的校正项，由此校正项发生器之一使用在均衡器滤波器之一的输出处从硬判决单元接收的数据来产生校正项 两个均衡器滤波器。

公开(公告)号：US20090054094A1

公开(公告)日：2009-02-26

申请号：US12258877

申请日：2008-10-27

申请人： Alpaslan Demir ,  Donald M. Grieco ,  John W. Haim ,  Andrew F. Bednarz ,  Philip J. Pietraski ,  Louis J. Guccione ,  Prabhakar R. Chitrapu

发明人： Alpaslan Demir ,  Donald M. Grieco ,  John W. Haim ,  Andrew F. Bednarz ,  Philip J. Pietraski ,  Louis J. Guccione ,  Prabhakar R. Chitrapu

IPC分类号： H04B15/00

CPC分类号： H04B1/7083 ,  H04B1/70735 ,  H04B1/70755 ,  H04B1/709 ,  H04B2201/70701 ,  H04W48/16 ,  H04W56/00

摘要： A method and apparatus for identifying a code group representative of a predetermined number of base stations is disclosed. A chip offset within a frame is input into a first correlator. A plurality of samples of chips at which a primary synchronization code (PSC) has been detected are input into the first correlator. Output of the first correlator is multiplied by the complex conjugate of the PSC to obtain a magnitude for the signals being transmitted at the chips inputted into the first correlator. The magnitude is summed over four frames. The summed signals view of a predetermined set of decision variables is evaluated. A case number, a code group, a timeslot location, and a system frame number are determined based on the evaluation and noise estimation.

摘要翻译： 公开了一种用于识别表示预定数量的基站的代码组的方法和装置。 帧内的码片偏移被输入到第一相关器中。 已经检测到主同步码（PSC）的多个码片样本被输入到第一相关器中。 将第一相关器的输出乘以PSC的复共轭，以获得在输入​​到第一相关器的码片处发送的信号的幅度。 幅度总和在四帧以上。 评估预定的一组决策变量的相加信号视图。 基于评估和噪声估计来确定案例编号，代码组，时隙位置和系统帧编号。