公开(公告)号：US20070249308A1

公开(公告)日：2007-10-25

申请号：US11784103

申请日：2007-04-04

申请人： Shiwei Gao ,  Hafedh Trigui

发明人： Shiwei Gao ,  Hafedh Trigui

IPC分类号： H04B17/02 ,  H04B1/06 ,  H04M1/00

CPC分类号： H04B7/0857 ,  H04B7/0854 ,  H04B7/0874

摘要： A method and apparatus for an uplink signal processing system that includes converting a plurality of received RF signals which can be grouped by common diversity characteristics into the digital domain, and performing signal processing on the signals to maximize the signal to noise ratio, when the signals common to a diversity characteristic are combined. The signals are then combined and converted back to RF, to conventionally provide a base station with a main and diversity channel.

摘要翻译： 一种用于上行链路信号处理系统的方法和装置，包括将可以通过公共分集特性分组的多个接收的RF信号转换成数字域，以及当信号信号最大化时对信号执行信号处理以使信噪比最大化 共同的多样性特征相结合。 然后将信号组合并转换回RF，以通常为基站提供主和分集信道。

公开(公告)号：US08077093B2

公开(公告)日：2011-12-13

申请号：US12293183

申请日：2007-03-09

申请人： Stuart J. Dean

发明人： Stuart J. Dean

IPC分类号： H01Q1/24

CPC分类号： H01Q9/0407 ,  H01Q1/38

摘要： A patch radiator for use in beamformed or steerable antenna systems which maximizes upper frequency limit and simultaneously minimizes the lower frequency limit, by providing an annular patch configuration in which a central region of the patch element is devoid of material, whereby this central region is of a different shape from the shape of the exterior perimeter of the patch element. One possible configuration of such a patch radiator comprises a square exterior shape, enclosing a central circular region of removed material. In this manner, the upper frequency limit threshold tends to rise as the interior annular perimeter is reduced. Preferably, the exterior and interior perimeters have no interior angles of more than 180°.

摘要翻译： 一种用于波束成形或可操纵天线系统的贴片辐射器，其通过提供一种环形贴片配置使得上限频率最大化并同时最小化频率下限，其中贴片元件的中心区域没有材料，由此该中心区域 与补片元件的外周的形状不同的形状。 这种贴片辐射器的一种可能的结构包括正方形的外部形状，包围去除材料的中心圆形区域。 以这种方式，当内部环形周长减小时，上限频率阈值倾向于上升。 优选地，外部和内部周边没有大于180°的内角。

公开(公告)号：US20110199279A1

公开(公告)日：2011-08-18

申请号：US13062445

申请日：2009-09-11

申请人： Lin-Ping Shen ,  Nasrin Hojjat

发明人： Lin-Ping Shen ,  Nasrin Hojjat

IPC分类号： H01Q1/50 ,  H01Q9/04 ,  H01Q1/38

CPC分类号： H01Q9/0435 ,  H01Q9/0414 ,  H01Q9/0457 ,  H01Q21/065

摘要： Various embodiments of a patch antenna, element thereof and method of feeding therefor are described. In general, the patch antenna is configured to generate orthogonal beams and comprises an array of patch elements each contributing to the orthogonal beams and comprising one or more resonators, a base reflector, and a dual feed mechanism. The dual feed mechanism generally comprises two pairs of feeding elements, each one of which comprising substantially balanced feeds configured to drive a respective one of the orthogonal beams via substantially anti-phase capacitive coupling.

摘要翻译： 描述了贴片天线，其元件及其馈送方法的各种实施例。 通常，贴片天线被配置为产生正交波束并且包括每个有助于正交波束并且包括一个或多个谐振器，基极反射器和双馈电机构的贴片元件阵列。 双馈送机构通常包括两对馈送元件，每对馈电元件包括​​基本上平衡的馈电，其被配置为通过基本上相位的电容耦合驱动相应的一个正交光束。

公开(公告)号：US07756227B2

公开(公告)日：2010-07-13

申请号：US11784090

申请日：2007-04-04

申请人： Shiwei Gao ,  Hafedh Trigui

发明人： Shiwei Gao ,  Hafedh Trigui

IPC分类号： H04B7/10

CPC分类号： H01Q3/2605 ,  H04B7/086

摘要： A novel system for performing adaptive beamforming in a slow frequency hopping environment is disclosed. The presence of slow frequency hopping means that conventional mechanisms of using beamforming weights from previous time slots are inapplicable. The inventive system calculates a series of beamforming weights from an estimate of the spatial location of the mobile subscriber in the previous frame, which is impervious to slow frequency hopping and the data that precedes the training sequence data of the current frame. The beamforming weights and the spatial location of the mobile are updated with the arrival of the entirety of the current frame. The initial beamforming weight estimate is sufficient to permit processing on a real-time basis of the current frame even if the inventive system is implemented as an appliqué system interposed between the antenna array and a conventional base station.

摘要翻译： 公开了一种用于在慢跳频环境中执行自适应波束成形的新颖系统。 慢跳频的存在意味着使用来自前一时隙的波束成形权重的常规机制是不适用的。 本发明的系统从先前帧中的移动用户的空间位置的估计中计算出一系列波束形成权重，其不可避免慢跳频和在当前帧的训练序列数据之前的数据。 随着当前帧的整体的到达，波束成形权重和移动台的空间位置被更新。 即使本发明的系统被实现为插入在天线阵列和常规基站之间的贴布系统，初始波束形成权重估计足以允许基于当前帧的实时处理。

公开(公告)号：US20080267063A1

公开(公告)日：2008-10-30

申请号：US11796378

申请日：2007-04-27

申请人： Hafedh Trigui ,  Kathryn Adeney ,  Chris Ward ,  Keith Wilson

发明人： Hafedh Trigui ,  Kathryn Adeney ,  Chris Ward ,  Keith Wilson

IPC分类号： H04J1/00

CPC分类号： H04W72/082 ,  H04B7/024 ,  H04B7/0408 ,  H04B7/0695 ,  H04B7/12 ,  H04L5/0007 ,  H04L5/0023 ,  H04W16/28

摘要： A method and apparatus of imparting coverage gain to cell-edge or cusp mobile subscribers without resort to diluted frequency reuse factors is disclosed. Each base station adopts a priori a beam illumination sequence designed to minimize or obviate the likelihood of beam clashes in a narrow beam adaptive beamforming system. Such sequences may be optimized to impact primarily cell-edge subscribers or subscribers within cusp areas of adjoining beams or sectors. The inventive protocols may be applicable to fixed multibeam systems as well as individual steered beam and spatial null generation antenna systems.

摘要翻译： 公开了一种赋予小区边缘或尖端移动用户的覆盖增益而不依赖于稀疏频率复用因子的方法和装置。 每个基站采用先验的射束照明序列，设计用于最小化或消除窄波束自适应波束成形系统中波束冲突的可能性。 这样的序列可以被优化以主要影响相邻波束或扇区的尖端区域内的小区边缘用户或用户。 本发明的协议可以适用于固定多波束系统以及单独的转向波束和空间零位生成天线系统。

公开(公告)号：US20080143601A1

公开(公告)日：2008-06-19

申请号：US11946979

申请日：2007-11-29

申请人： Yufeng Xu

发明人： Yufeng Xu

IPC分类号： H01Q3/00

CPC分类号： H01Q3/40 ,  H01Q25/00

摘要： A novel implementation of a planar 4×4 RF Butler matrix layout is disclosed that permits, by moving the beam ports to the interior of the layout, for combining beam ports that are not disposed on the same side of the layout without the imposition of long delay times or crossover points. The implementation admits of using microstrip and/or stripline technologies.

摘要翻译： 公开了一种平面4x4 RF Butler矩阵布局的新颖实现，其允许通过将波束端口移动到布局的内部，用于组合未布置在布局的同一侧上的波束端口，而不施加长的延迟时间 或交叉点。 实施允许使用微带线和/或带状线技术。

公开(公告)号：US20070285312A1

公开(公告)日：2007-12-13

申请号：US11784485

申请日：2007-04-06

申请人： Shiwei Gao ,  Hafedh Trigui

发明人： Shiwei Gao ,  Hafedh Trigui

IPC分类号： H04B7/26

CPC分类号： H01Q3/24 ,  H01Q1/246 ,  H01Q3/40 ,  H04B7/0617 ,  H04B7/0857

摘要： A system and method of providing an adaptive multi-beam capability to a wireless base transceiver station is disclosed. The system comprises a plurality of transmit and receive antenna arrays and a plurality of static beamformers to form a limited number of beams. The beam data is reduced to digital baseband form whereupon it is digitally beamformed using a set of adaptive beamforming weights generated having regard to the form and content of the data and the environment. Such form and content information is obtained directly or indirectly from the base transceiver station. The weights are calculated using an average power function derived from a correlation of the beam data with a reference signal that mimics the training sequence assigned to the base transceiver station. Because the average power does not vary widely from frame to frame, the weights derived from the uplink direction may be reapplied in the downlink direction. Specific provision is made for data packets, where downlink packets may contain control information intended for broadcast to all subscribers.

摘要翻译： 公开了一种向无线基站收发台提供自适应多波束能力的系统和方法。 该系统包括多个发射和接收天线阵列和多个静态波束形成器以形成有限数量的波束。 波束数据被减少到数字基带形式，因此使用在考虑了数据和环境的形式和内容的情况下产生的一组自适应波束赋形权重进行数字波束形成。 这种形式和内容信息直接或间接从基地收发台获得。 使用从波束数据与模拟分配给基站的训练序列的参考信号的相关性导出的平均功率函数来计算加权。 因为平均功率在帧之间不会很大地变化，所以从上行链路方向导出的权重可以在下行链路方向重新应用。 具体规定了数据包，其中下行链路分组可以包含旨在广播给所有订户的控制信息。