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    Method and system for controlling device transmit power in a wireless communication network
    1.
    发明授权
    Method and system for controlling device transmit power in a wireless communication network 有权
    用于在无线通信网络中控制设备发射功率的方法和系统

    公开(公告)号：US06977915B2

    公开(公告)日：2005-12-20

    申请号：US09772622

    申请日：2001-01-30

    申请人： Xixian Chen ,  Neil N. McGowan ,  Weigang Li ,  Jeffrey D. Stanier ,  M. Khaled Islam ,  Qiang Shen ,  Xin Jin

    发明人： Xixian Chen ,  Neil N. McGowan ,  Weigang Li ,  Jeffrey D. Stanier ,  M. Khaled Islam ,  Qiang Shen ,  Xin Jin

    IPC分类号： H04B1/7097 ,  H04B7/005 ,  H04B7/216

    CPC分类号： H04W52/08 ,  H04B1/7097 ,  H04W52/24

    摘要： A method and system for closed loop power control in a wireless communication network. A received signal is despread. The signal power of the despread received signal is estimated. The noise power of the despread received signal is estimated. Estimating the noise power includes multiplying the despread received signal with an orthogonal noise code to cancel the received signal, accumulating the multiplied despread received signal over one frame and determining a signal-to-noise ratio of the received signal at least in part by dividing the estimated signal power by the estimated noise power. A reverse power control bit is determined based on the determined signal-to-noise ratio.

    摘要翻译： 一种用于无线通信网络中闭环功率控制的方法和系统。 接收到的信号被解扩。 估计解扩接收信号的信号功率。 估计解扩接收信号的噪声功率。 估计噪声功率包括将去扩展接收信号与正交噪声码相乘以抵消接收信号，在一帧上累积相乘的解扩接收信号，并至少部分地通过将接收信号的信噪比除以 估计信号功率由估计的噪声功率。 基于确定的信噪比来确定反向功率控制位。

    Enhanced forward link power control during soft hand-off
    7.
    发明授权
    Enhanced forward link power control during soft hand-off 有权
    在软切换期间增强前向链路功率控制

    公开(公告)号：US07127267B2

    公开(公告)日：2006-10-24

    申请号：US10307648

    申请日：2002-12-02

    申请人： Neil N. McGowan ,  Hong Ren ,  Ashvin Chheda

    发明人： Neil N. McGowan ,  Hong Ren ,  Ashvin Chheda

    IPC分类号： H04B7/00

    CPC分类号： H04W52/40 ,  H04L1/004 ,  H04L1/203 ,  H04W36/18 ,  H04W48/08 ,  H04W52/12 ,  H04W88/08

    摘要： A plurality of base station transceiver subsystems determine whether to scale the forward link transmission power level and, if so, by what amount to control forward link transmission power level mismatch. The plurality of base stations transmit reverse link signal-to-noise ratio information and forward link transmission power levels for a specified transmission to the base station controller. The base station controller compares the reverse link signal-to-noise ratio readings received from each of the plurality of base stations to determine and select a dominant base station. The base station controller then transmits the dominant base station's forward link transmission power level for the specified transmission to each of the plurality of base stations that is communicating with the mobile station that is in hand-off. Each base station, accordingly, determines whether to scale its forward link transmission power level.

    摘要翻译： 多个基站收发器子系统确定是否缩放前向链路传输功率电平，如果是，则通过什么量来控制前向链路传输功率电平不匹配。 多个基站向基站控制器发送反向链路信噪比信息和用于指定传输的前向链路发送功率电平。 基站控制器比较从多个基站中的每一个接收的反向链路信噪比读数，以确定和选择主要基站。 然后，基站控制器将用于指定的传输的主要基站的前向链路发送功率电平发送到与正在切换的移动台进行通信的多个基站中的每个基站。 因此，每个基站确定是否缩放其前向链路传输功率电平。

    Digitally convertible radio
    8.
    发明授权
    Digitally convertible radio 有权
    数字转换收音机

    公开(公告)号：US07206355B2

    公开(公告)日：2007-04-17

    申请号：US10307624

    申请日：2002-12-02

    申请人： Neil N. McGowan ,  Marthinus W. Da Silveira ,  Mihai Parvan ,  Matthew Conrod

    发明人： Neil N. McGowan ,  Marthinus W. Da Silveira ,  Mihai Parvan ,  Matthew Conrod

    IPC分类号： H04L27/00

    CPC分类号： H04B1/0483 ,  H03F1/3247 ,  H03F1/3282 ,  H03F1/34 ,  H03F3/24 ,  H03F3/602 ,  H03F2200/204 ,  H03F2200/393 ,  H03F2200/451 ,  H04B2001/0433

    摘要： A forward link transmitter in a sectored cell includes a baseband processor having traditional baseband signal digital processing circuitry in addition to including a digital hybrid matrix (vector and delay compensated transformation module) whose phase and amplitude (vector) and delay may be adjusted to compensate for downstream errors that are introduced and detected by a feedback circuit. Accordingly, the baseband processor, by monitoring an output of an analog hybrid matrix producing modulated and amplified radio frequency (RF) signals just prior to propagation from an antenna, can determine errors produced by the analog circuitry including the analog hybrid matrix and may compensate for the same by introducing an amplitude, phase and delay adjustment (in the digital domain) into output digital waveform signals to compensate for the error introduced downstream to the baseband processor.

    摘要翻译： 分区单元中的前向链路发射机还包括具有传统基带信号数字处理电路的基带处理器，此外还包括数字混合矩阵（向量和延迟补偿变换模块），其相位和幅度（矢量）和延迟可被调整以补偿 由反馈电路引入和检测的下游误差。 因此，基带处理器可以通过监测在从天线传播之前产生调制和放大的射频（RF）信号的模拟混合矩阵的输出，从而可以确定包括模拟混合矩阵的模拟电路产生的误差，并且可以补偿 通过将幅度，相位和延迟调整（在数字域中）引入到输出数字波形信号中来补偿下行到基带处理器的误差也是一样的。

    Peak power and envelope magnitude regulators and CDMA transmitters featuring such regulators
    9.
    发明授权
    Peak power and envelope magnitude regulators and CDMA transmitters featuring such regulators 有权
    峰值功率和包络幅度调节器和具有这种调节器的CDMA发射机

    公开(公告)号：US06931053B2

    公开(公告)日：2005-08-16

    申请号：US09729097

    申请日：2000-12-05

    申请人： Neil N. McGowan

    发明人： Neil N. McGowan

    IPC分类号： H04B1/707 ,  H04B7/005 ,  H04B7/26 ,  H04J13/00 ,  H04B1/69 ,  H04B1/713

    CPC分类号： H04J13/00 ,  H04B1/707 ,  H04B2201/70706

    摘要： A peak power regulator is disclosed that functions within a Code Division Multiple Access (CDMA) transmitter to reduce peak power spikes within baseband signals, controlling the out-of-band emissions, and maintaining the in-band signal quality within an acceptable degradation. In-phase and quadrature baseband signals are input to an envelope magnitude predictor within the peak power regulator. The envelope magnitude predictor outputs an estimate for the magnitude of the envelope that will be generated when the inputted baseband signals are modulated. This estimate is input to a multiplier that generates a ration by dividing the estimate by a maximum acceptable envelope magnitude. The ratio is subsequently input to a mapping table that outputs a scaling factor sufficient for reducing peak power spikes. The scaling factor is subsequently subtracted from a value of one and multiplied by first delayed versions of the in-phase and quadrature baseband input signals. The outputs from these multiplication operations, after being filtered within lowpass filters to remove out-of-band emissions caused by the operations, are referred to as excess power correction signals. These excess power correction signals are then subtracted from second delayed versions of the in-phase and quadrature baseband input signals to generate in-phase and quadrature baseband output signals.

    摘要翻译： 公开了峰值功率调节器，其在码分多址（CDMA）发射机内起作用以减少基带信号内的峰值功率尖峰，控制带外发射，并将带内信号质量维持在可接受的降级内。 同相和正交基带信号被输入到峰值功率调节器内的包络幅度预测器。 包络幅度预测器输出当输入的基带信号被调制时将产生的包络幅度的估计。 该估计被输入到通过将估计除以最大可接受的包络幅度来产生比例的乘法器。 该比率随后被输入到映射表，其输出足以减少峰值功率尖峰的比例因子。 随后从1值减去缩放因子并乘以同相和正交基带输入信号的第一延迟版本。 这些乘法运算的输出在被低通滤波器中滤波以去除由该运算引起的带外发射之后，被称为多余功率校正信号。 然后从同相和正交基带输入信号的第二延迟版本中减去这些多余的功率校正信号，以产生同相和正交基带输出信号。