Distributed antenna system employing digital forward deployment of wireless transmit/receive locations
    1.
    发明申请
    Distributed antenna system employing digital forward deployment of wireless transmit/receive locations 审中-公开
    分布式天线系统采用无线发射/接收位置的数字前向部署

    公开(公告)号:US20070274279A1

    公开(公告)日:2007-11-29

    申请号:US11639753

    申请日:2006-12-15

    CPC classification number: H04W88/10 H04W88/085

    Abstract: A communication system implements a method of bidirectional communication of signals to/from one or more wireless transmit locations. Transmitting signals to one or more wireless transmit locations includes obtaining a plurality of signals having different protocols, from a plurality of base stations, then converting the plurality of signals into common digital network protocol signals, and transmitting the common protocol signals over a transmission network to one or more wireless transmit locations. Receiving signals from one or more wireless transmit locations includes transmitting digital signals using a common protocol, from one or more wireless receive locations over the transmission network, converting the received digital signals into a plurality of signals having different protocols corresponding to a plurality of base stations implementing said different protocols, and providing the plurality of differing protocol signals to said corresponding plurality of base stations.

    Abstract translation: 通信系统实现了向/从一个或多个无线发射位置的信号的双向通信的方法。 将信号发送到一个或多个无线发射位置包括从多个基站获得具有不同协议的多个信号,然后将多个信号转换成公共数字网络协议信号,以及通过传输网络将公共协议信号发送到 一个或多个无线发射位置。 从一个或多个无线发射位置接收信号包括使用公共协议从传输网络上的一个或多个无线接收位置发送数字信号,将接收到的数字信号转换成具有与多个基站对应的不同协议的多个信号 实现所述不同的协议,并向所述对应的多个基站提供多个不同的协议信号。

    Distributed antenna system using signal precursors
    3.
    发明申请
    Distributed antenna system using signal precursors 审中-公开
    使用信号前兆的分布式天线系统

    公开(公告)号:US20070058742A1

    公开(公告)日:2007-03-15

    申请号:US11518112

    申请日:2006-09-07

    CPC classification number: H04L27/2602 H04L5/0023 H04L5/0046

    Abstract: A system and method for distributing multiple wireless carriers to transmission sites is disclosed. Carrier precursors are distributed which are digital in format and compressed in bandwidth. The individual carrier precursors are combined using time division multiplexing to eliminate the need for excess bandwidth allotments. A separate time division multiplexed control channel is created to communicate carrier configuration and operating status information. With the carrier precursor data and configuration information, a software-defined radio is used to create actual carriers at or near the transmission location. Creating carriers at or near the transmission location provides the additional benefit of reducing transmission losses between the transmit antenna and the signal generating radio.

    Abstract translation: 公开了一种用于向传输站点分发多个无线载波的系统和方法。 载体前体是分布式的,格式为数字格式,带宽压缩。 使用时分复用来组合各个载波前体,以消除对带宽额外分配的需要。 创建单独的时分复用控制信道来传送载波配置和操作状态信息。 利用载体前体数据和配置信息,软件定义的无线电用于在传输位置处或附近创建实际载波。 在传输位置处或附近创建载波提供减少发射天线和信号发生无线电之间的传输损耗的附加益处。

    Amplifier system employing analog polynomial predistortion with sub-nyquist digital adaptation
    5.
    发明申请
    Amplifier system employing analog polynomial predistortion with sub-nyquist digital adaptation 有权
    采用模拟多项式预失真与次尼古斯数字适应的放大器系统

    公开(公告)号:US20070063772A1

    公开(公告)日:2007-03-22

    申请号:US11520216

    申请日:2006-09-13

    Abstract: A predistortion linearized amplifier system that uses analog polynomial based predistortion is disclosed. An analog polynomial function generator receives polynomial parameter updates from a polynomial parameter generator. The polynomial parameter generator uses a combination of analog and digital signal processing to create the parameter updates. This processing is performed on input signal amplitude, detected using analog circuits, and RF coupled samples of the input signal, and the output signal. By using a combination of analog and digital signal processing means, digital processing can be performed at sub-Nyquist rates, significantly reducing the cost of digital circuits. Also, since the predistortion modulation signal is created with an analog function generator, time correlating delay is minimized reducing circuit costs.

    Abstract translation: 公开了一种使用模拟多项式的预失真的预失真线性放大器系统。 模拟多项式函数发生器从多项式参数发生器接收多项式参数更新。 多项式参数发生器使用模拟和数字信号处理的组合来创建参数更新。 对使用模拟电路检测的输入信号幅度和输入信号的RF耦合样本以及输出信号进行该处理。 通过使用模拟和数字信号处理装置的组合,可以以次奈奎斯特速率进行数字处理,显着降低数字电路的成本。 此外,由于预失真调制信号是用模拟函数发生器产生的,所以时间相关延迟最小化降低了电路成本。

    OFDM communications system employing crest factor reduction with ISI control
    6.
    发明申请
    OFDM communications system employing crest factor reduction with ISI control 有权
    使用ISI控制的波峰因数降低的OFDM通信系统

    公开(公告)号:US20070058743A1

    公开(公告)日:2007-03-15

    申请号:US11521028

    申请日:2006-09-14

    Applicant: Matthew Hunton

    Inventor: Matthew Hunton

    CPC classification number: H04L27/2624

    Abstract: A system and method for providing a peak power reduced OFDM communications signal are disclosed. The system and method provide peak reduction processing in the time domain followed by inter-symbol interference (ISI) control processing in the frequency domain to maintain modulation errors introduced by the peak reduction processing to an acceptable level. The processing is preferably done on a parallel signal path and the peak corrections with ISI control are added into the main signal path to provide the peak reduced OFDM signal.

    Abstract translation: 公开了一种用于提供峰值功率降低的OFDM通信信号的系统和方法。 该系统和方法在时域中提供峰值缩减处理,随后在频域中进行符号间干扰(ISI)控制处理,以将由峰值缩小处理引入的调制误差维持在可接受的水平。 该处理优选地在并行信号路径上进行,并且将具有ISI控制的峰值校正添加到主信号路径中以提供峰值降低的OFDM信号。

    System and method for remote antenna positioning data acquisition
    7.
    发明授权
    System and method for remote antenna positioning data acquisition 有权
    用于远程天线定位数据采集的系统和方法

    公开(公告)号:US07990325B2

    公开(公告)日:2011-08-02

    申请号:US12152728

    申请日:2008-05-16

    CPC classification number: H01Q21/06 H01Q1/125 H01Q1/22 H01Q3/005

    Abstract: The present invention provides a remote antenna system employing digital imaging means by which the operator can view both the antenna pointing data and the coverage landscape from the antenna radome perspective. The present invention also provides a method for antenna positioning data acquisition and positioning control employing remotely acquired image data.

    Abstract translation: 本发明提供一种采用数字成像装置的远程天线系统,通过该数字成像装置,操作者可以从天线雷达罩透视图观看天线指向数据和覆盖景观。 本发明还提供一种使用远程获取的图像数据的天线定位数据采集和定位控制的方法。

    Feed forward amplifier employing positive feedback pilot generation with automatic level control
    8.
    发明申请
    Feed forward amplifier employing positive feedback pilot generation with automatic level control 有权
    使用具有自动电平控制的正反馈导频生成的前馈放大器

    公开(公告)号:US20060176113A1

    公开(公告)日:2006-08-10

    申请号:US11369529

    申请日:2006-03-07

    CPC classification number: H03F1/26 H03F1/3235

    Abstract: A feed forward amplifier and method of amplification are disclosed. The amplifier output is used to generate a pilot signal via feedback using uncancelled noise in the amplifier output. An automatic level control circuit maintains the pilot signal at a substantially constant level when the detected uncancelled noise in the amplifier output is above a threshold level. The generated pilot signal strength is allowed to vary when the detected uncancelled noise in the amplifier output is below the threshold and disappears automatically when the amplifier is aligned.

    Abstract translation: 公开了一种前馈放大器和放大方法。 放大器输出用于通过放大器输出中未经检测的噪声的反馈来产生导频信号。 当放大器输出中检测到的未经取消的噪声高于阈值电平时,自动电平控制电路将导频信号保持在基本恒定的电平。 当放大器输出中检测到的未经取消的噪声低于阈值时,产生的导频信号强度会发生变化,当放大器对齐时自动消失。

    Delay mismatched feed forward amplifier system using penalties and floors for control

    公开(公告)号:US20060077006A1

    公开(公告)日:2006-04-13

    申请号:US11288580

    申请日:2005-11-29

    CPC classification number: H03F1/26 H03F1/3235

    Abstract: A delay mismatched feed forward amplifier system employing a control system and method using floors and penalties is disclosed. The disclosed control system and method allows the second loop phase adjuster setting to be offset in a repeatable and controlled manner. Applying floors and penalties to offset the steady-state phase adjuster setting modifies the conventional pilot cancellation approach. In the conventional case, pilot cancellation has a distinct minimum that corresponds to the desired adjustment setting. In the disclosed approach, the measured pilot cancellation is clipped to a lower bound or floor to produce a set of equal valued minimum control results. The floor is selected to place a desired phase offset to the phase adjuster at the edge of minimum floor. To ensure that the correct phase adjuster offset is selected from the set of equal valued minimum control results, a control direction based penalty is added. By including both the floor and penalty, the phase adjuster steady state offset will be controlled to the edge of the minimum floor.

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