公开(公告)号：US20090034461A1

公开(公告)日：2009-02-05

申请号：US12141828

申请日：2008-06-18

申请人： Benoit Pelletier ,  Christopher R. Cave ,  Paul Marinier ,  Eldad M. Zeira ,  Philip J. Pietraski

发明人： Benoit Pelletier ,  Christopher R. Cave ,  Paul Marinier ,  Eldad M. Zeira ,  Philip J. Pietraski

IPC分类号： H04W72/04 ,  H04L27/28

CPC分类号： H04L25/03343 ,  H04L2025/03426 ,  H04W28/06 ,  H04W48/08 ,  H04W52/0216 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/23

摘要： A method and an apparatus are provided for efficient transmission of low-data-rate packet services in a multiple-input multiple-output (MIMO) mode of operations in the presence of high-data-rate packet services. Precoding weight information (PWI) is signaled implicitly to a wireless transmit receive unit (WTRU). A precoding weight vector is signaled in a high speed shared control channel less (HS-SCCH-less) transmission using a new HS-SCCH type P. This explicit PWI signaling approach transmits the PWI with minimum power overhead. The data carried in the HS-SCCH type P is encoded to minimize the required transmitted power. A channel type HS-SCCH type 2M is also described.

摘要翻译： 提供了一种用于在存在高数据速率分组业务的情况下以多输入多输出（MIMO）操作模式有效传输低数据速率分组业务的方法和装置。 预编码权重信息（PWI）被隐式地发送到无线发射接收单元（WTRU）。 使用新的HS-SCCH类型P在低速共享控制信道（HS-SCCH-less）传输中用信号通知预编码权重向量。该显式PWI信令方法以最小功率开销传输PWI。 HS-SCCH类型P中承载的数据被编码以最小化所需的发射功率。 还描述了类型为2M的信道类型HS-SCCH。

公开(公告)号：US20080301536A1

公开(公告)日：2008-12-04

申请号：US12130763

申请日：2008-05-30

申请人： Sung-Hyuk Shin ,  Donald M. Grieco ,  Nirav B. Shah ,  Philip J. Pietraski ,  Robert Lind Olesen

发明人： Sung-Hyuk Shin ,  Donald M. Grieco ,  Nirav B. Shah ,  Philip J. Pietraski ,  Robert Lind Olesen

IPC分类号： H03M13/23 ,  G06F11/00

CPC分类号： H04L1/0071 ,  H04L1/0043 ,  H04L1/0059 ,  H04L1/0067

摘要： A method and apparatus for channel coding and rate matching of the Physical Uplink Control Channel (PUCCH) and the Physical Downlink Control Channel (PDCCH) is disclosed that uses convolutional encoding to code the control channels. Rate matching is performed using a circular buffer based rate matching algorithm. A rate matching module may contain a single interleaver or may alternatively comprise a plurality of sub-block interleavers. Interleaved coded bits may be stored in the circular buffer in an interlaced format, or output streams from separate sub-block interleavers may be stored contiguously. When a plurality of sub-block interleavers are used, different interleaving patterns may be used. Rate matching may use bit puncturing or repetition to match the rate of the available physical channel resource. Rate matched output bits may be interleaved using a channel interleaver.

摘要翻译： 公开了用于物理上行链路控制信道（PUCCH）和物理下行链路控制信道（PDCCH）的信道编码和速率匹配的方法和装置，其使用卷积编码来对控制信道进行编码。 使用基于循环缓冲器的速率匹配算法来执行速率匹配。 速率匹配模块可以包含单个交织器，或者可以包括多个子块交织器。 交错编码比特可以以隔行格式存储在循环缓冲器中，或者来自分开的子块交织器的输出流可以被连续地存储。 当使用多个子块交织器时，可以使用不同的交织模式。 速率匹配可以使用比特删截或重复来匹配可用物理信道资源的速率。 速率匹配输出位可以使用信道交织器进行交织。

公开(公告)号：US20080298508A1

公开(公告)日：2008-12-04

申请号：US12166702

申请日：2008-07-02

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： H03D1/24

CPC分类号： H04L27/38 ,  H04L1/20

摘要： An improved receiver and method estimate one or more parameters, such as amplitude and signal-to-noise ratio, of a received signal, such as an M-QAM or q-ASK signal. The amplitude of an M-QAM signal is estimated based upon known or ascertainable phase information regarding a plurality of transmitted symbols. The amplitude of a q-ASK signal is estimated based upon known or ascertainable magnitude information regarding a plurality of transmitted symbols. In another embodiment, the amplitude of an M-QAM or q-ASK signal is estimated based on statistical knowledge of the amplitude of the transmitted symbols. Other embodiments estimate amplitude, noise power, and signal-to-noise ratio of a received signal utilizing second-order and fourth-order moments of received samples, a maximum likelihood searching process, or a Kurtosis estimation process.

摘要翻译： 改进的接收机和方法估计诸如M-QAM或q-ASK信号的接收信号的一个或多个参数，例如振幅和信噪比。 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-QAM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-ASK信号的幅度。 在另一个实施例中，M-QAM或q-ASK信号的振幅基于所发送符号的幅度的统计知识来估计。 其他实施例使用接收样本的二阶和四阶矩，最大似然搜索处理或峰度估计过程来估计接收信号的幅度，噪声功率和信噪比。

公开(公告)号：US07460617B2

公开(公告)日：2008-12-02

申请号：US11506221

申请日：2006-08-18

申请人： Philip J. Pietraski

发明人： Philip J. Pietraski

IPC分类号： H03K9/00 ,  H03D1/00 ,  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。

公开(公告)号：US07453964B2

公开(公告)日：2008-11-18

申请号：US11586415

申请日：2006-10-25

申请人： Robert Lind Olesen ,  Alexander Reznik ,  Philip J. Pietraski ,  Rui Yang

发明人： Robert Lind Olesen ,  Alexander Reznik ,  Philip J. Pietraski ,  Rui Yang

IPC分类号： H04B1/02

CPC分类号： H04L27/2647 ,  H04B7/0845 ,  H04B7/086

摘要： A wireless communication apparatus which uses fast Fourier transforms (FFTs) in an orthogonal frequency division multiplexing (OFDM) receiver which incorporates a beam space antenna array. The beam space antenna array may be implemented with a Butler matrix array. The beam space antenna array may be a circular array, vertical array, or a combination of both circular and vertical arrays, for providing the desired angular antenna coverage. In one embodiment, the antenna array is optimized because the FFTs are linear invariant transform operators, whereby the order of operations in the OFDM receiver can be interchanged.

摘要翻译： 一种在包含波束空间天线阵列的正交频分复用（OFDM）接收机中使用快速傅里叶变换（FFT）的无线通信装置。 波束空间天线阵列可以用Butler矩阵阵列来实现。 波束空间天线阵列可以是圆形阵列，垂直阵列或圆形阵列和垂直阵列的组合，用于提供所需的角度天线覆盖。 在一个实施例中，天线阵列被优化，因为FFT是线性不变变换运算符，由此OFDM接收机中的操作顺序可以互换。

公开(公告)号：US07415084B2

公开(公告)日：2008-08-19

申请号：US10660842

申请日：2003-09-12

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： H03D1/04

CPC分类号： H04B1/70735 ,  H04B1/70755 ,  H04B1/7083 ,  H04B1/709 ,  H04B1/7103 ,  H04B2201/70707

摘要： The invention provides embodiments to facilitate 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： 本发明提供了便于小区搜索的实施例。 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。

公开(公告)号：US07215646B2

公开(公告)日：2007-05-08

申请号：US10940079

申请日：2004-09-14

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

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

IPC分类号： G01R31/08 ,  G06F11/00 ,  H04J1/16 ,  H04L12/26 ,  H04L27/06 ,  H03D1/00 ,  H03D1/04

CPC分类号： H04L1/0026 ,  H04L1/20 ,  H04L25/0202

摘要： A method and apparatus for estimating and reporting the quality of a wireless communication channel between a wireless transmit/receive unit (WTRU) and a Node-B. A modulated signal is received from the Node-B over the communication channel and a channel estimation is performed on the modulated signal to provide a channel estimate. In one embodiment, the modulated signal is demodulated based on the channel estimate to provide a demodulated signal and a signal-to-interference (SIR) estimate based on the demodulated signal is obtained. The quality of the communication channel is estimated based on at least the SIR estimate. In an alternate embodiment, a SIR estimate based on the channel estimate is obtained. The quality of the communication channel is estimated based on the SIR estimate and additional information including at least one of delay spread, transmit power and WTRU velocity information.

摘要翻译： 一种用于估计和报告无线发射/接收单元（WTRU）和节点B之间的无线通信信道的质量的方法和装置。 通过通信信道从节点B接收调制信号，并对调制信号执行信道估计以提供信道估计。 在一个实施例中，基于信道估计来解调调制信号以提供解调信号，并且获得基于解调信号的信号干扰（SIR）估计。 至少基于SIR估计来估计通信信道的质量。 在替代实施例中，获得基于信道估计的SIR估计。 基于SIR估计和包括延迟扩展，发射功率和WTRU速度信息中的至少一个的附加信息来估计通信信道的质量。

公开(公告)号：US08750312B2

公开(公告)日：2014-06-10

申请号：US13214476

申请日：2011-08-22

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： H04L12/28

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。

公开(公告)号：US20130343215A1

公开(公告)日：2013-12-26

申请号：US13991118

申请日：2011-12-02

申请人： Yingxue K. Li ,  Philip J. Pietraski ,  Joseph S. Levy ,  Hongsan Sheng

发明人： Yingxue K. Li ,  Philip J. Pietraski ,  Joseph S. Levy ,  Hongsan Sheng

IPC分类号： H04W72/08

CPC分类号： H04W72/085 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0632 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L2001/0093

摘要： Systems and methods for channel quality indicator (CQI) feedback may be disclosed. At a current transmission time interval, precoder and/or modulation information that may be used at or associated with a future transmission time interval may be determined. As such, at a current transmission time interval, precoder and/or modulation information that may be used to select a modulation or coding scheme (MCS) and/or schedule transmission at a future transmission time interval may be predicted in the current transmission time interval. The precoder and/or modulation information may be broadcast and received such that the information may be used to estimate a channel quality indicator (CQI) at the current transmission time interval. The estimated CQI may be used to select a modulation and coding scheme (MCS), schedule transmissions, and the like.

摘要翻译： 可以公开用于信道质量指示符（CQI）反馈的系统和方法。 在当前的传输时间间隔，可以确定可在未来传输时间间隔中或与之相关联的预编码器和/或调制信息。 这样，在当前传输时间间隔，可以在当前传输时间间隔中预测可用于选择调制或编码方案（MCS）和/或调度传输的预编码器和/或调制信息 。 可以广播和接收预编码器和/或调制信息，使得可以使用该信息来估计当前传输时间间隔的信道质量指示符（CQI）。 估计的CQI可以用于选择调制和编码方案（MCS），调度传输等。

公开(公告)号：US08385281B2

公开(公告)日：2013-02-26

申请号：US12696928

申请日：2010-01-29

申请人： Kyle Jung-Lin Pan ,  Jean-Louis Gauvreau ,  Guodong Zhang ,  Philip J. Pietraski ,  Sung-Hyuk Shin

发明人： Kyle Jung-Lin Pan ,  Jean-Louis Gauvreau ,  Guodong Zhang ,  Philip J. Pietraski ,  Sung-Hyuk Shin

IPC分类号： H04W4/00 ,  H04J3/00

CPC分类号： H04W72/042 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/2656

摘要： A wireless transmit/receive unit (WTRU) receives a downlink subframe having multiple component carriers, each component carrier having control information encoded in a physical downlink control channel (PDCCH). The WTRU performs a blind decoding of control information in a first PDCCH located within a first component carrier to obtain a location of a second PDCCH located within a second component carrier, where the location of the second PDCCH is relative to a location of the first PDCCH as control channel element offset. The WTRU decodes the second PDCCH at the obtained location.