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    Device, system and method of phase quantization for phased array antenna
    1.
    发明授权
    Device, system and method of phase quantization for phased array antenna 有权
    相控阵天线相位量化的装置，系统及方法

    公开(公告)号：US08848772B2

    公开(公告)日：2014-09-30

    申请号：US13528952

    申请日：2012-06-21

    申请人： Maxim Greenberg ,  Tom Harel ,  Yuval Lomnitz

    发明人： Maxim Greenberg ,  Tom Harel ,  Yuval Lomnitz

    IPC分类号： H04L27/22 ,  H04B17/00

    CPC分类号： H04B17/12 ,  H01Q3/26 ,  H04B7/0617 ,  H04B7/084

    摘要： Some demonstrative embodiments include devices, systems and/or methods of phase quantization. For example, a device may include a phase quantizer to receive a plurality of non-quantized phase values corresponding to a plurality of antenna elements of a phased-array antenna, based on the plurality of non-quantized phase values to select a predefined rotation angle, to determine a plurality of rotated non-quantized phase values by rotating the plurality of non-quantized phase values by the selected rotation angle, and to generate a plurality of quantized phase values by quantizing the plurality of rotated non-quantized phase values.

    摘要翻译： 一些演示实施例包括相位量化的装置，系统和/或方法。 例如，设备可以包括相位量化器，用于基于多个非量化相位值来接收对应于相控阵天线的多个天线元件的多个非量化相位值，以选择预定义的旋转角度 通过将所述多个非量化相位值旋转所选择的旋转角度来确定多个旋转的非量化相位值，并且通过量化所述多个旋转非量化相位值来生成多个量化相位值。

    NOISE ESTIMATION FILTER
    2.
    发明申请
    NOISE ESTIMATION FILTER 失效
    噪声估计滤波器

    公开(公告)号：US20130003802A1

    公开(公告)日：2013-01-03

    申请号：US13174327

    申请日：2011-06-30

    申请人： Ayelet Doron ,  Vladimir Kravtsov ,  Yuval Lomnitz

    发明人： Ayelet Doron ,  Vladimir Kravtsov ,  Yuval Lomnitz

    IPC分类号： H04L27/28 ,  H04B17/00

    CPC分类号： H04B17/345 ,  H04L25/0242 ,  H04L25/0248

    摘要： A noise estimation filter for an orthogonal frequency-division multiplexed (OFDM) system can include a filter bank module, a coefficient squaring module, and a summing module. The filter bank module can multiply a unitary vector by an OFDM signal vector to generate scalar products of the OFDM signal vector. The coefficient squaring module can square the scalar products and weight the scalar products to generate a plurality of weighted single estimates. The coefficient squaring module can include a squaring module for squaring the scalar product to generate a plurality of single estimates and a coefficient multiplication module for weighting each of the single estimates with a noise coefficient forming a plurality of weighted single estimates. The summing module can sum the weighted single estimates to generate a noise and interference power estimate.

    摘要翻译： 用于正交频分复用（OFDM）系统的噪声估计滤波器可以包括滤波器组模块，系数平方模块和求和模块。 滤波器组模块可以通过OFDM信号向量乘以单一矢量，以产生OFDM信号矢量的标量积。 系数平方模块可以对标量积进行平方并加权标量积以产生多个加权单个估计。 系数平方模块可以包括用于平方标量积以产生多个单个估计的平方模块和用于对形成多个加权单个估计值的噪声系数对每个单个估计进行加权的系数乘法模块。 求和模块可以对加权的单个估计进行求和以产生噪声和干扰功率估计。

    Apparatus, systems and methods for switching MIMO transmission techniques in wireless communication systems
    3.
    发明授权
    Apparatus, systems and methods for switching MIMO transmission techniques in wireless communication systems 有权
    用于在无线通信系统中切换MIMO传输技术的装置，系统和方法

    公开(公告)号：US08218492B2

    公开(公告)日：2012-07-10

    申请号：US12459255

    申请日：2009-06-26

    申请人： Rotem Avivi ,  Yuval Lomnitz ,  Uri Perlmutter

    发明人： Rotem Avivi ,  Yuval Lomnitz ,  Uri Perlmutter

    IPC分类号： H04W4/00

    CPC分类号： H04B7/0689 ,  H04B7/0628 ,  H04B7/0697

    摘要： An embodiment of the present invention provides an apparatus that may include a transceiver operable to communicate with a receiver in a wireless network and adapted to select an optimal mode for transmissions, wherein the receiver estimates the optimal mode and feeds it back to the transceiver which changes a transmitted mode accordingly and wherein the optimal mode is based on a predetermined metric based on a performance equation that puts a threshold to separate between a high correlated signal to low correlation signal.

    摘要翻译： 本发明的实施例提供了一种装置，其可以包括可操作以与无线网络中的接收机通信并适于选择用于传输的最佳模式的收发机，其中所述接收机估计所述最佳模式并将其馈送回所述收发器，所述收发器改变 相应地发送模式，并且其中最优模式基于基于将阈值分离在高相关信号与低相关信号之间的性能方程式的预定度量。

    Adaptive frequency reuse method of radio resources management and allocation
    4.
    发明授权
    Adaptive frequency reuse method of radio resources management and allocation 有权
    无线电资源管理与分配的自适应频率复用方法

    公开(公告)号：US08068459B2

    公开(公告)日：2011-11-29

    申请号：US12415957

    申请日：2009-03-31

    申请人： Vladimir Kravtsov ,  Yuval Lomnitz ,  Clark Chen ,  Shilpa Talwar ,  Nageen Himayat ,  Li Li ,  Hua Yang ,  Homgmei Sun

    发明人： Vladimir Kravtsov ,  Yuval Lomnitz ,  Clark Chen ,  Shilpa Talwar ,  Nageen Himayat ,  Li Li ,  Hua Yang ,  Homgmei Sun

    IPC分类号： H04L5/22 ,  H04J3/00 ,  H04W72/00

    CPC分类号： H04W72/06 ,  H04W28/08 ,  H04W72/082

    摘要： A method for managing and allocating radio resources (RRMA method) of multiple radio resource types to subscriber stations is disclosed. The RRMA method includes bandwidth partitioning, into parts comprising “slots” with a given reuse pattern, a selection rule, to select a “cell, reuse pattern” pair serving each user, and an allocation rule, for distributing to each user an appropriate number of bandwidth slots from the selected “cell, reuse pattern” pair. After an adaptation period, the method reaches a desired fairness, while simultaneously reaching a maximal mean throughput, possible under this fairness. For big networks, the method provides basically decentralized radio resource management. The RRMA method is useful to cellular networks having a single set of orthogonal sub-channels (frequency/time slots) being reused by all network cells, such as time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA), or OFDMA/TDMA cellular systems. Particularly, the method is applicable in fractional frequency reuse cellular networks.

    摘要翻译： 公开了一种用于向用户站管理和分配多种无线电资源类型的无线电资源（RRMA方法）的方法。 RRMA方法包括带宽划分，包括具有给定重复使用模式的“时隙”的部分，选择规则，以选择为每个用户提供服务的“小区，重用模式”对以及分配规则，用于向每个用户分配适当的号码 来自所选择的“小区，重用模式”对的带宽时隙。 在适应期后，该方法达到期望的公平性，同时达到最大平均吞吐量，这在公平性下是可能的。 对于大型网络，该方法基本上提供了分散的无线资源管理。 RRMA方法对于具有由所有网络小区重新使用的单组正交子信道（频率/时隙）的蜂窝网络是有用的，诸如时分多址（TDMA），正交频分多址（OFDMA）或 OFDMA / TDMA蜂窝系统。 特别地，该方法适用于分数频率复用蜂窝网络。

    Downlink subchannelization scheme for 802.16M
    5.
    发明授权
    Downlink subchannelization scheme for 802.16M 有权
    用于802.16M的下行链路子信道化方案

    公开(公告)号：US07986613B2

    公开(公告)日：2011-07-26

    申请号：US12344498

    申请日：2008-12-27

    申请人： Yuval Lomnitz

    发明人： Yuval Lomnitz

    IPC分类号： H04J11/00

    CPC分类号： H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/03343

    摘要： Two novel subchannelization methods are disclosed, for use in a 802.16m system. A downlink subchannelization method supports both localized and distributed sub-carriers, different modulation modes, and supports a variety of different fractional frequency reuse (FFR) group allocations.

    摘要翻译： 公开了两种新颖的子信道化方法，用于802.16m系统。 下行链路子信道化方法支持本地化和分散的子载波，不同的调制模式，并且支持各种不同的分数频率重用（FFR）组分配。

    Channel estimation processing for performance improvement in low SNR regime
    7.
    发明授权
    Channel estimation processing for performance improvement in low SNR regime 有权
    信道估计处理，用于低信噪比系统的性能改进

    公开(公告)号：US09094241B2

    公开(公告)日：2015-07-28

    申请号：US13995705

    申请日：2011-12-28

    申请人： Ayelet Doron ,  Yuval Lomnitz

    发明人： Ayelet Doron ,  Yuval Lomnitz

    IPC分类号： H04L27/06 ,  H04L25/02

    CPC分类号： H04L25/0202 ,  H04L25/0212 ,  H04L25/0224 ,  H04L25/0256

    摘要： Disclosed is an improved channel estimation by post-processing of the channel response that is generated by a Golay correlator The processing is done using time-domain operations such as gating and filtering. Gating is performed on the estimated channel response taps in order to reduce the noise level. Pre-filtering the channel response through a filter matched to the transmitted pulse-shape improves the probability of detecting the channel peaks. Post-filtering the processed channel impulse response to eliminate the high frequency effects that are added by the windowing and gating operations.

    摘要翻译： 公开了通过后处理由格雷相关器产生的信道响应的改进的信道估计。该处理使用诸如门控和滤波的时域操作来完成。 对估计的信道响应抽头进行门控，以降低噪声水平。 通过与发送的脉冲形状匹配的滤波器对信道响应进行预滤波，提高了检测信道峰值的可能性。 对经处理的信道脉冲响应进行后处理，以消除由窗口和门控操作添加的高频效应。

    Enhanced scheduling techniques for wireless communication networks
    10.
    发明授权
    Enhanced scheduling techniques for wireless communication networks 有权
    用于无线通信网络的增强调度技术

    公开(公告)号：US08190168B2

    公开(公告)日：2012-05-29

    申请号：US12241605

    申请日：2008-09-30

    申请人： Wendy C. Wong ,  Nageen Himayat ,  Yuval Lomnitz ,  Timothy F. Cox

    发明人： Wendy C. Wong ,  Nageen Himayat ,  Yuval Lomnitz ,  Timothy F. Cox

    IPC分类号： H04W72/04

    CPC分类号： H04W72/121 ,  H04W72/046

    摘要： An enhanced beamforming with interference nulling method is an improvement over prior art beamforming with interference nulling techniques. The enhanced method includes two scheduling schemes that allow all base stations to schedule their cell edge users independently and determine the information exchange among base stations over the backbone that is needed to support the scheduling activity. The method uses grouping information to perform distributed scheduling among base stations to schedule downlink transmission to cell edge users, while reducing interference to cell edge users served by neighboring base stations. The enhanced method demonstrates the base station-to-base station coordination and information exchange that is needed to enable independent base station scheduling of their cell edge users.

    摘要翻译： 具有干扰归零法的增强波束成形是对具有干扰零陷技术的现有技术波束成形的改进。 增强方法包括两个调度方案，其允许所有基站独立地调度其小区边缘用户，并且确定支持调度活动所需的骨干网上的基站之间的信息交换。 该方法使用分组信息在基站之间执行分布式调度，以调度对小区边缘用户的下行链路传输，同时减少对由相邻基站服务的小区边缘用户的干扰。 增强的方法演示了基站到基站的协调和信息交换，以便能够对其小区边缘用户进行独立的基站调度。