Method and intelligent digital beam forming system responsive to traffic
demand
    62.
    发明授权
    Method and intelligent digital beam forming system responsive to traffic demand 失效
    响应交通需求的方法和智能数字波束成形系统

    公开(公告)号:US5754139A

    公开(公告)日:1998-05-19

    申请号:US739529

    申请日:1996-10-30

    CPC分类号: H04B7/2041

    摘要: An intelligent digital beam former (10) in conjunction with a satellite based array antenna (20) provides a plurality of dynamically controllable antenna beams (52) for communication with subscriber units (90) in response to demand for communication services. Geographic portions within the satellite's footprint that have a higher-demand for communication services are dynamically provided additional antenna beams while geographic portions having a lower demand for communication services are provided less antenna beams. When used on a non-geostationary satellite, the digital beam forming coefficients are dynamically adjusted to steer the antenna beams to maintain their ground location. The antenna beams are also shaped to help optimized geographic coverage.

    摘要翻译: 响应于对通信服务的需求,与卫星阵列天线(20)结合的智能数字波束形成器(10)提供多个可动态可控天线波束(52),用于与用户单元(90)通信。 具有对通信服务的更高要求的卫星覆盖区内的地理部分被动态地提供附加的天线波束,而具有对通信服务的较低需求的地理部分被提供较少的天线波束。 当在非对地静止卫星上使用时,动态调整数字波束形成系数以引导天线波束以保持其地面位置。 天线梁的形状也可以帮助优化地理覆盖。

    Synchronizer for TDMA acquisition signal having an unknown frequency
    63.
    发明授权
    Synchronizer for TDMA acquisition signal having an unknown frequency 失效
    具有未知频率的TDMA采集信号的同步器

    公开(公告)号:US5383225A

    公开(公告)日:1995-01-17

    申请号:US991816

    申请日:1992-12-17

    IPC分类号: H04B7/212 H04L7/027 H04L7/00

    CPC分类号: H04L7/027 H04B7/2125

    摘要: A synchronizer operates to achieve initial synchronization with a TDMA acquisition signal exhibiting a potentially large Doppler. The synchronizer collects samples of a baseband signal during a timing window. A fast Fourier transform (FFT) is performed on the samples to generate a set of spectral data. The window is moved to an identical point in a subsequent frame and the FFT repeated until a high-confidence spectral data set is obtained. If the spectral data set indicates energy concentrated around a discrete frequency, then that discrete frequency represents an estimate of the acquisition signal's frequency. The timing window's timing parameters represent a time slot estimate of the acquisition signal. If the spectral data set indicates energy spread more or less uniformly over the spectrum, then no estimates are indicated and a new window is positioned at a different point in subsequent frames.

    摘要翻译: 同步器操作以实现具有潜在的大多普勒的TDMA采集信号的初始同步。 同步器在定时窗口期间收集基带信号的采样。 对样本执行快速傅立叶变换(FFT)以生成一组光谱数据。 将窗口移动到后续帧中的相同点,并重复FFT,直到获得高置信度谱数据集。 如果光谱数据集指示围绕离散频率集中的能量,则该离散频率表示采集信号频率的估计。 定时窗口的时序参数表示采集信号的时隙估计。 如果光谱数据集指示能量在频谱上均匀地扩散,则不指示估计,并且新窗口位于后续帧中的不同点。

    Distortion compensation means and method
    64.
    发明授权
    Distortion compensation means and method 失效
    失真补偿手段和方法

    公开(公告)号:US5111155A

    公开(公告)日:1992-05-05

    申请号:US663522

    申请日:1991-03-04

    IPC分类号: H03F1/32 H04L27/20

    摘要: Distortion introduced in phase modulated RF signals by amplifiers and other signal processors is substantially reduced by modifying complex modulating signals I,Q in a way that compensates for the amplifier phase error .phi..sub.e as a function of amplifier power P. In a preferred embodiment, I, Q are combined to calculate the amplifier power level and scaled by a parameter, e.g., K1=-d.phi..sub.e /dP, to provide factor B so that compensated signals I"=AQ+BI and Q"=AI-BQ, where A is a constant, can be determined. When an RF carrier modulated by I", Q" is passed through the distorting amplifier the amplifier induced distortion is cancelled. Substantial reduction in bit error probability is obtained. The method can also be used for post-distortion correction.

    摘要翻译: 放大器和其他信号处理器在相位调制RF信号中引入的失真通过以补偿作为放大器功率P的函数的放大器相位误差phi的方式修改复数调制信号I,Q而大大降低。在优选实施例中,I ,Q组合以计算放大器功率电平并通过参数(例如,K1 = -d phi / dP)进行缩放,以提供因子B,使得补偿信号I“= AQ + BI和Q”= AI-BQ ,其中A是常数,可以确定。 当通过I“,Q”调制的RF载波通过失真放大器时,放大器感应失真被消除。 获得了比特错误概率的显着降低。 该方法也可用于后失真校正。

    Quality of service management in a fixed wireless customer premises network
    66.
    发明授权
    Quality of service management in a fixed wireless customer premises network 有权
    固定无线客户端网络中的服务质量管理

    公开(公告)号:US08913509B2

    公开(公告)日:2014-12-16

    申请号:US12911493

    申请日:2010-10-25

    摘要: A method, performed by a fixed wireless router device, may include receiving a packet from a Long Term Evolution network, where the packet is associated with a particular Long Term Evolution Quality of Service class and mapping the particular Long Term Evolution Quality of Service class to a particular Differentiated Services Core Point Quality of Service class. The method may further include assigning a Differentiated Services Core Point Quality of Service class to the packet based on the particular Differentiated Services Core Point Quality of Service class and forwarding the packet to particular device associated with a customer premises network serviced by the fixed wireless router device, based on a priority associated with the assigned Differentiated Services Core Point Quality of Service class.

    摘要翻译: 由固定无线路由器设备执行的方法可以包括从长期演进网络接收分组,其中所述分组与特定的长期演进服务质量等级相关联,并将特定的长期演进服务质量等级映射到 特定的差异化服务核心服务质量等级。 该方法还可以包括:基于特定的差分服务核心服务质量等级将分组服务核心服务质量等级分配给分组,并将分组转发到与由固定无线路由器设备服务的客户驻地网络相关联的特定设备 基于与分配的差异化服务核心点服务质量类相关联的优先级。

    Link quality indicator for a fixed installation radio frequency terrestrial network
    68.
    发明授权
    Link quality indicator for a fixed installation radio frequency terrestrial network 有权
    固定安装射频地面网络的链路质量指标

    公开(公告)号:US08830081B2

    公开(公告)日:2014-09-09

    申请号:US13053821

    申请日:2011-03-22

    IPC分类号: G09F9/33

    摘要: A visual indicator, such as a light emitting diode (LED), may display the quality of the radio frequency (RF) link. In one implementation, a device may include, a RF antenna; a control module to connect to a Long-Term Evolution (LTE) network through the RF antenna; and a LED, disposed on an outer surface of the device, to emit light of a number of different colors, where the color to emit is selected based on a quality of the connection to the LTE network. The device may include an outdoor broadband unit connected to an external portion of a customer premise.

    摘要翻译: 诸如发光二极管(LED)的视觉指示器可以显示射频(RF)链路的质量。 在一个实现中,设备可以包括:RF天线; 通过RF天线连接到长期演进(LTE)网络的控制模块; 以及设置在所述装置的外表面上的LED,以发射多种不同颜色的光,其中根据与LTE网络的连接的质量来选择要发射的颜色。 该设备可以包括连接到客户端的外部部分的室外宽带单元。

    MULTICAST RESOURCE OPTIMIZATION
    69.
    发明申请
    MULTICAST RESOURCE OPTIMIZATION 有权
    多媒体资源优化

    公开(公告)号:US20130163444A1

    公开(公告)日:2013-06-27

    申请号:US13334271

    申请日:2011-12-22

    IPC分类号: H04W28/04 H04W24/00

    摘要: Content may be transmitted to mobile devices, in a network, using a Multimedia Broadcast Multicast Services (MBMS) multicast technique over wireless interfaces in the network. In one implementation, network elements in the network may receive feedback about the MBMS multicast transmission, where the feedback relates to a quality of the content, as received by the one or more mobile devices, or to the quality of the radio channel. The devices may determine whether to modify transmission parameters relating to the MBMS multicast transmission and may determine whether to retransmit lost data, corresponding to the content, to the mobile devices. The lost data may be retransmitted as a unicast transmission or a multicast transmission.

    摘要翻译: 内容可以通过网络中的无线接口使用多媒体广播组播服务(MBMS)多播技术在网络中传输到移动设备。 在一个实现中,网络中的网络元件可以接收关于MBMS组播传输的反馈,其中反馈与由一个或多个移动设备接收的内容的质量或无线电信道的质量相关。 设备可以确定是否修改与MBMS多播传输相关的传输参数,并且可以确定是否将与内容相对应的丢失数据重传到移动设备。 丢失的数据可以作为单播传输或多播传输重传。

    DYNAMIC SELECTION OF HOST-BASED OR NETWORK-BASED MOBILITY PROTOCOL
    70.
    发明申请
    DYNAMIC SELECTION OF HOST-BASED OR NETWORK-BASED MOBILITY PROTOCOL 有权
    动态选择基于主机或基于网络的移动性协议

    公开(公告)号:US20130100894A1

    公开(公告)日:2013-04-25

    申请号:US13280845

    申请日:2011-10-25

    IPC分类号: H04W60/00 H04W8/02 H04W76/00

    CPC分类号: H04W8/02 H04W60/00 H04W76/10

    摘要: A device receives, from a mobile device, a request to connect to a network, and determines, based on the connection request, whether the mobile device has mobility capability. The device registers the mobile device per host-based mobility protocol standards when the mobile device does not have mobility capability. The device registers the mobile device per network-based mobility protocol standards when the mobile device has mobility capability.

    摘要翻译: 设备从移动设备接收连接到网络的请求,并且基于连接请求确定移动设备是否具有移动性能力。 当移动设备不具有移动性能力时,设备每个基于主机的移动协议标准注册移动设备。 当移动设备具有移动性能力时,设备根据每个基于网络的移动性协议标准注册移动设备。