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    • 1. 发明申请
    • SELF-OPTIMIZING NETWORKS FOR FIXED WIRELESS ACCESS
    • 用于固定无线接入的自优化网络
    • US20110136478A1
    • 2011-06-09
    • US12634057
    • 2009-12-09
    • Hafedh Trigui
    • Hafedh Trigui
    • H04W24/02
    • H04W24/02H04B7/0408H04B7/0491H04W16/18H04W24/08H04W28/08
    • An embodiment of the invention relates to a method of modifying communication parameters of a wireless network, the wireless network having at least two antennas, and each of the antennas providing coverage to at least one sector. The method including obtaining measurement data for at least two sectors of the wireless network, determining, from the obtained measurement data, if a signal strength indicator of one or more sectors of the at least two sectors is at or below a target value, determining, if the one or more sectors is at or below the target value, a communication parameter to be applied to the wireless network such that the signal strength indicator of the one or more sectors is above the target value, and modifying the communication parameters of the wireless network such that the determined communication parameter is applied to the wireless network.
    • 本发明的实施例涉及一种修改无线网络的通信参数的方法,所述无线网络具有至少两个天线,并且每个天线向至少一个扇区提供覆盖。 该方法包括获得无线网络的至少两个扇区的测量数据,从所获得的测量数据确定所述至少两个扇区中的一个或多个扇区的信号强度指示符是否在目标值以下, 如果一个或多个扇区处于或低于目标值,则要应用于无线网络的通信参数,使得一个或多个扇区的信号强度指示符高于目标值,并修改无线的通信参数 网络,使得所确定的通信参数被应用于无线网络。
    • 4. 发明申请
    • ASYMMETRICAL BEAMS FOR SPECTRUM EFFICIENCY
    • 不对称的光谱效率
    • US20090163214A1
    • 2009-06-25
    • US12094299
    • 2007-03-19
    • Hafedh TriguiStuart J. DeanJohn Litva
    • Hafedh TriguiStuart J. DeanJohn Litva
    • H04W16/00
    • H04W16/24
    • A method and apparatus for increasing capacity and performance of a base station for a sectorized cellular wireless network is disclosed in which one of the sector antennas is replaced or supplanted by a novel sub-sector antenna that generates a plurality of asymmetrical sub-sector coverage areas that collectively substantially cover the coverage area of the replaced sector antenna. The use of asymmetrical coverage areas permits the total coverage area to closely approximate the symmetrical sector coverage area without creating excessively large sub-sector handover zones or introducing severe degradation in the network performance. This in turn permits the selective replacement of a single sector antenna rather than the wholesale replacement of all sector antennas in a region, leading to lower transitional costs and the ability to provide a focused approach to capacity planning.
    • 公开了一种用于增加用于扇区化的蜂窝无线网络的基站的容量和性能的方法和装置,其中扇区天线中的一个由新的子扇区天线替换或替换,该新的子扇区天线生成多个不对称的子扇区覆盖区域 它们共同地基本上覆盖被替换的扇形天线的覆盖区域。 使用不对称覆盖区域允许总覆盖区域紧密地近似于对称扇区覆盖区域,而不会产生过大的子扇区切换区域或引入网络性能的严重劣化。 这又允许选择性地更换单个扇区天线,而不是批量更换一个区域中的所有扇区天线,从而降低过渡成本,并提供集中的方法进行容量规划。
    • 5. 发明授权
    • Robust beamforming based on nulls broadening and virtual antenna elements
    • 基于零扩展和虚拟天线元件的鲁棒波束成形
    • US07429949B1
    • 2008-09-30
    • US11890136
    • 2007-08-03
    • Hafedh Trigui
    • Hafedh Trigui
    • H01Q3/00
    • H01Q3/30
    • A method and system for generating beamforming weights for a plurality of antenna elements is disclosed. The invention consists of generating broadened nulls in a direction of arrival corresponding to one or more co-channel interference signals. The broadened nulls permit deviations in the measurement of the direction of arrival or variations therein. The increased information content inherent in generating the broadened nulls is accommodated by postulating the existence of a virtual augmented antenna array comprising the antenna elements of the physical array and a plurality of additional virtual elements. The beamforming weights for the elements of the augmented array are truncated down prior to translation to the size of the physical array and are applied to create the desired broadened nulls and thereby improve system performance.
    • 公开了一种用于生成多个天线元件的波束形成权重的方法和系统。 本发明包括在与一个或多个同信道干扰信号相对应的到达方向上产生加宽的零点。 扩大的零点允许测量到达方向或其中的变化的偏差。 通过假设存在包括物理阵列的天线元件和多个附加虚拟元件的虚拟增强天线阵列,可以适应生成扩展空值所固有的增加的信息内容。 扩展阵列的元素的波束成形权重在转换为物理阵列的大小之前被截断,并被应用于创建所需的扩展空值,从而提高系统性能。
    • 6. 发明申请
    • Adaptive null streering for frequency hopping networks
    • 跳频网络的自适应零轨迹
    • US20070258411A1
    • 2007-11-08
    • US11784384
    • 2007-04-05
    • Hafedh Trigui
    • Hafedh Trigui
    • H04B7/216
    • H04W16/28H01Q3/2611
    • A method and apparatus for performing adaptive null steering in a slow frequency hopping environment. Where base stations have smart beamforming antenna capability and are interconnected by a base station controller, thus accommodating cyclic and pseudo-random frequency hopping, each base station forwards information on arrival time, frequency and received power of all subscriber communications and co-channel interferers to the controller for correlation. Periodicity information relating to co-channel interferers is returned to the applicable base station, to enable the generation of a null in the direction of arrival of the interferer. Where few base stations have smart beamforming capability, frequency hopping is cyclic only, and each base station generates its own periodicity information. Base stations may also calculate direction of arrival and time of arrival information, and forward this to the controller, if applicable. The invention enhances network capabilities including a subscriber localizing capability hitherto unavailable to network operators.
    • 一种用于在慢跳频环境中执行自适应零转向的方法和装置。 在基站具有智能波束成形天线能力并且由基站控制器互连的情况下,每个基站转发关于所有用户通信和同信道干扰的到达时间,频率和接收功率的循环和伪随机跳频信息 控制器进行相关。 与同信道干扰源有关的周期性信息返回到适用的基站,以便能够在干扰源的到达方向上生成零。 在几乎没有基站具有智能波束形成能力的情况下,跳频是循环的,并且每个基站产生其自己的周期性信息。 基站还可以计算到达方向和到达时间信息,并将其转发给控制器(如果适用)。 本发明增强了网络能力,包括迄今为止对网络运营商不可用的用户定位能力。
    • 7. 发明授权
    • Self-optimizing networks for fixed wireless access
    • 用于固定无线接入的自优化网络
    • US08385900B2
    • 2013-02-26
    • US12634057
    • 2009-12-09
    • Hafedh Trigui
    • Hafedh Trigui
    • H04M3/00
    • H04W24/02H04B7/0408H04B7/0491H04W16/18H04W24/08H04W28/08
    • An embodiment of the invention relates to a method of modifying communication parameters of a wireless network, the wireless network having at least two antennas, and each of the antennas providing coverage to at least one sector. The method including obtaining measurement data for at least two sectors of the wireless network, determining, from the obtained measurement data, if a signal strength indicator of one or more sectors of the at least two sectors is at or below a target value, determining, if the one or more sectors is at or below the target value, a communication parameter to be applied to the wireless network such that the signal strength indicator of the one or more sectors is above the target value, and modifying the communication parameters of the wireless network such that the determined communication parameter is applied to the wireless network.
    • 本发明的实施例涉及一种修改无线网络的通信参数的方法,所述无线网络具有至少两个天线,并且每个天线向至少一个扇区提供覆盖。 该方法包括获得无线网络的至少两个扇区的测量数据,从所获得的测量数据确定所述至少两个扇区中的一个或多个扇区的信号强度指示符是否在目标值以下, 如果一个或多个扇区处于或低于目标值,则要应用于无线网络的通信参数,使得一个或多个扇区的信号强度指示符高于目标值,并修改无线的通信参数 网络,使得所确定的通信参数被应用于无线网络。
    • 8. 发明申请
    • SELF-OPTIMIZING WIRELESS NETWORK
    • 自优优化无线网络
    • US20120087269A1
    • 2012-04-12
    • US13273354
    • 2011-10-14
    • Osama HusseinHafedh Trigui
    • Osama HusseinHafedh Trigui
    • H04W16/24
    • H04W24/02H04W16/18H04W72/04
    • Optimizing a plurality cell sites or sectors in a wireless netwrok including receiving network data regarding a plurality of cell sites or sectors; determining a critical zone in which communication is degraded; determining best neighbor cell sites or sectors among the neighbor cell sites or sectors associated with the critical cell sites or sectors; determining if the critical cell sites or sectors in the critical zone have available resources for achieving a desired improvement in communications; determining if the best neighbor cell sites or sectors have available resources for achieving the desired improvement in communications; and altering wireless network parameters of the critical cell sites or sectors, or the best neighbor cells sites or sectors for achieving the desired improvment in communications.
    • 在无线网络中优化多个小区站点或扇区,包括接收关于多个小区站点或扇区的网络数据; 确定通信降级的关键区域; 确定与关键小区站点或扇区相关联的相邻小区站点或扇区中的最佳邻居小区站点或扇区; 确定临界区中的关键小区站点或扇区是否具有用于实现通信期望改进的可用资源; 确定最佳相邻小区站点或扇区是否具有用于实现通信期望改进的可用资源; 以及改变关键小区站点或最佳相邻小区站点或扇区的无线网络参数,以实现通信中所需的改进。