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    Spread spectrum transmitter power control method and system
    21.
    发明授权
    Spread spectrum transmitter power control method and system 失效
    扩频发射机功率控制方法和系统

    公开(公告)号：US5257283A

    公开(公告)日：1993-10-26

    申请号：US749249

    申请日：1991-08-23

    申请人： Klein S. Gilhousen ,  Roberto Padovani ,  Charles E. Wheatley, III

    发明人： Klein S. Gilhousen ,  Roberto Padovani ,  Charles E. Wheatley, III

    IPC分类号： H04B7/005 ,  H04W52/00 ,  H04W52/02 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/40 ,  H04W52/52 ,  H04L27/30 ,  H04B7/204 ,  H04J13/00

    CPC分类号： H04W52/52 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/40

    摘要： A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell site using code division multiple access spread spectrum communication signals. The power control system controls transmission signal power for each cellular mobile telephone in the cellular mobile telephone system wherein each cellular mobile telephone has an antenna, transmitter and receiver and each cell-site also has an antenna, transmitter and receiver. Cell-site transmitted signal power is measured as received at the mobile unit. Transmitter power is adjusted at the mobile unit in an opposite manner with respect to increases and decreases in received signal power. A power control feedback scheme may also be utilized. At the cell-site communicating with the mobile unit, the mobile unit transmitted power is measured as received at the cell-site. A command signal is generated at the cell-site and transmitted to the mobile unit for further adjusting mobile unit transmitter power corresponding to deviations in the cell site received signal power. The feedback scheme is used to further adjust the mobile unit transmitter power so as to arrive at the cell-site at a desired power level.

    摘要翻译： 一种用于蜂窝移动电话系统的功率控制系统，其中系统用户通过使用码分多址扩频通信信号的至少一个小区站点在彼此之间传送信息信号。 功率控制系统控制蜂窝移动电话系统中的每个蜂窝移动电话的传输信号功率，其中每个蜂窝移动电话具有天线，发射机和接收机，并且每个小区站点也具有天线，发射机和接收机。 在移动单元处测量接收到的站点发送信号功率。 相对于接收信号功率的增加和减少，发射机功率在移动单元处以相反的方式被调整。 还可以使用功率控制反馈方案。 在与移动单元通信的小区站点处，移动单元发送的功率在小区站点被接收到。 在小区站点生成指令信号，发送给移动单元，进一步调整与单元现场接收信号功率的偏差对应的移动单元发射机功率。 反馈方案用于进一步调整移动单元发射机功率，以便以期望的功率电平到达小区站点。

    Method and apparatus for generating oscillating signals
    28.
    发明授权
    Method and apparatus for generating oscillating signals 有权
    用于产生振荡信号的方法和装置

    公开(公告)号：US07902936B2

    公开(公告)日：2011-03-08

    申请号：US12411278

    申请日：2009-03-25

    申请人： Russell John Fagg ,  Charles E. Wheatley, III

    发明人： Russell John Fagg ,  Charles E. Wheatley, III

    IPC分类号： H03L1/00

    CPC分类号： H03L1/022 ,  H03B5/06 ,  H03B5/1265 ,  H03B2200/0066 ,  H03B2200/0094 ,  H03L3/00 ,  H04B2001/6908

    摘要： An apparatus for generating an oscillating signal that includes a circuit to accelerate the time in which an oscillating signal reaches a defined steady-state condition from a cold start. The apparatus includes an oscillating circuit to generate an oscillating signal; a first circuit to supply a first current to the oscillating circuit; and a second circuit to supply a second current to the oscillating circuit, wherein the first and second currents are adapted to reduce the time duration for the oscillating signal to reach a defined steady-state condition. The apparatus may be useful in communication systems that use low duty cycle pulse modulation to establish one or more communications channels, whereby the apparatus begins generating an oscillating signal at approximately the beginning of the pulse and terminates the oscillating signal at approximately the end of the pulse.

    摘要翻译： 一种用于产生振荡信号的装置，其包括用于加速从冷启动振荡信号达到确定的稳态状态的时间的电路。 该装置包括产生振荡信号的振荡电路; 向振荡电路提供第一电流的第一电路; 以及向振荡电路提供第二电流的第二电路，其中第一和第二电流适于减小振荡信号达到所定义的稳态条件的持续时间。 该装置在使用低占空比脉冲调制以建立一个或多个通信信道的通信系统中可能是有用的，由此该装置在大约开始的脉冲处开始产生振荡信号，并在脉冲的大致末端终止振荡信号 。

    METHOD AND APPARATUS FOR ADJUSTING POWER CONTROL SETPOINT IN A WIRELESS COMMUNICATION SYSTEM
    30.
    发明申请
    METHOD AND APPARATUS FOR ADJUSTING POWER CONTROL SETPOINT IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    用于在无线通信系统中调整功率控制设置点的方法和装置

    公开(公告)号：US20100093387A1

    公开(公告)日：2010-04-15

    申请号：US12636497

    申请日：2009-12-11

    申请人： Tao Chen ,  Jack M. Holtzman ,  Fuyun Ling ,  Keith Saints ,  Nagabhushana Sindhushayana ,  Charles E. Wheatley, III

    发明人： Tao Chen ,  Jack M. Holtzman ,  Fuyun Ling ,  Keith Saints ,  Nagabhushana Sindhushayana ,  Charles E. Wheatley, III

    IPC分类号： H04B7/00 ,  H04B17/00

    CPC分类号： H04W52/12 ,  H04L1/0051 ,  H04L1/0066 ,  H04L1/208 ,  H04W52/20 ,  H04W52/36

    摘要： Techniques to adjust the setpoint of a power control loop in a wireless communication system. The setpoint may be adjusted based on frame status indicative of erased/good decoded frames, one or more (typically soft) metrics indicative of the confidence in the decoded results, power surplus/deficit indicative of the difference between the received signal quality and the setpoint, setpoint surplus/deficit indicative of the difference between the setpoint and a threshold Eb/Nt needed for the desired level of performance, or a combination thereof. The metrics may include re-encoded symbol error rate, re-encoded power metric, modified Yamamoto metric, minimum or average LLR among decoded bits, number of decoding iterations, and possibly others. The setpoint may be adjusted in different manners and/or by different amounts depending on the above-noted factors. The techniques may be employed for forward and/or reverse links in CDMA systems.

    摘要翻译： 调整无线通信系统中功率控制回路设定值的技术。 可以基于指示擦除/良好解码帧的帧状态来调整设定点，指示解码结果的置信度的一个或多个（通常为软）度量，指示接收信号质量与设定点之间的差异的功率余量/ ，表示设定值与所需性能水平所需的阈值Eb / Nt之间的差异的设定值剩余/缺失，或其组合。 度量可以包括重新编码的符号错误率，重新编码的功率度量，修改的Yamamoto度量，解码比特中的最小或平均LLR，解码迭代次数，以及可能的其他值。 可以根据上述因素以不同的方式和/或不同的量调节设定点。 这些技术可以用于CDMA系统中的前向和/或反向链路。