Method and apparatus for scaling the dynamic range of a receiver for continuously optimizing performance versus power consumption
    21.
    发明授权
    Method and apparatus for scaling the dynamic range of a receiver for continuously optimizing performance versus power consumption 有权
    用于缩放接收机的动态范围以连续优化性能与功耗的方法和装置

    公开(公告)号:US07299021B2

    公开(公告)日:2007-11-20

    申请号:US10243331

    申请日:2002-09-13

    IPC分类号: H04B17/00

    CPC分类号: H04B1/109

    摘要: Methods and apparatus are disclosed for operating a RF receiver. The method executes, during operation of the RF receiver, by periodically determining existing RF receiver operational conditions; determining RF receiver performance requirements based at least in part on the determined existing RF receiver operational conditions; and by allocating power consumption between RF receiver functional blocks in accordance with the determined RF receiver performance requirements and in accordance with a behavior model of at least one of the RF receiver as a whole and individual functional blocks of the RF receiver. The method may also monitor the resulting RF receiver signal quality to determine if allocation of power consumption has resulted in an optimum allocation of the power consumption.

    摘要翻译: 公开了用于操作RF接收器的方法和装置。 该方法在RF接收机的操作期间通过周期性地确定现有RF接收器的操作条件来执行; 至少部分地基于所确定的现有RF接收机操作条件确定RF接收机性能要求; 并且根据确定的RF接收机性能要求并根据RF接收机作为整体的至少一个的行为模型和RF接收机的各个功能块来分配RF接收机功能块之间的功耗。 该方法还可以监视所得的RF接收机信号质量,以确定功耗的分配是否已经导致功率消耗的最佳分配。

    Method and apparatus for compensating DC level in an adaptive radio receiver
    22.
    发明授权
    Method and apparatus for compensating DC level in an adaptive radio receiver 失效
    用于在自适应无线电接收机中补偿直流电平的方法和装置

    公开(公告)号:US07139542B2

    公开(公告)日:2006-11-21

    申请号:US10378172

    申请日:2003-03-03

    IPC分类号: H04B1/10

    CPC分类号: H04B1/30

    摘要: A radio frequency receiver 30, 32, includes a first component block 12, 16, 18, 20; a second compensating component block 22, 22a–22b, 34; and control circuitry 26 operable for controlling the state (e.g., load, bias, gain) of the first component block. When the control circuitry 26 causes a change in the state of the first component block that is expected to induce a DC offset in a signal, the control circuitry 26 changes the state of the second component block to compensate for an estimate of the DC offset. Preferably, the second component block is a filter 22, 22a–22b, 34, that temporarily changes from a nominal cutoff frequency to an elevated cutoff frequency so that voltage will settle quickly and accurately at an estimated voltage, the estimated voltage being predetermined and based on the state change to the first component block. A method is also described for practicing the invention.

    摘要翻译: 射频接收器30,32包括第一组件块12,16,18,20; 第二补偿部件块22,22a-22b,34; 以及可操作用于控制第一组件块的状态(例如,负载,偏置,增益)的控制电路26。 当控制电路26导致预期在信号中引起DC偏移的第一分量块的状态改变时,控制电路26改变第二分量块的状态以补偿DC偏移的估计。 优选地,第二组件块是过滤器22,22a-22b,34,其临时从标称截止频率改变到提升的截止频率,使得电压将在估计的电压下快速且准确地稳定,所估计的电压是预定的 并且基于对第一组件块的状态改变。 还描述了一种用于实施本发明的方法。

    Polar transmitter with digital to RF converter
    23.
    发明申请
    Polar transmitter with digital to RF converter 失效
    带数字至RF转换器的极性发射器

    公开(公告)号:US20050190854A1

    公开(公告)日:2005-09-01

    申请号:US11118884

    申请日:2005-04-29

    摘要: A polar transmitter, operable in linear mode or switched mode, uses a conversion module to convert baseband signals into amplitude data and phase data. The phase data is used to phase modulate a carrier frequency in a RF conversion module. The module comprises a plurality of parallel unit cells, each being a mixer cell type converter having a differential data switch section connected in series to a differential LO-switch pair. The differential LO-switch is connected in series to a current source. Each unit cell is adapted to receive a signal through an input end. In switched mode, the phase-modulated carrier frequency is amplitude modulated by the amplitude data through the supply voltage to a power amplifier. In linear mode, amplitude data is conveyed to the input end of the unit cells for modulating the phase-modulated carrier frequency in the conversion module.

    摘要翻译: 在线性模式或开关模式下可操作的极性发射器使用转换模块将基带信号转换为振幅数据和相位数据。 相位数据用于对RF转换模块中的载波频率进行相位调制。 该模块包括多个并行单元单元,每个单元单元是具有与差分LO开关对串联连接的差分数据开关部分的混频器单元型转换器。 差分LO开关串联连接到电流源。 每个单位单元适于通过输入端接收信号。 在开关模式中,相位调制载波频率由幅度数据通过电源电压幅度调制到功率放大器。 在线性模式中,幅度数据被传送到单位单元的输入端,用于调制转换模块中的相位调制载波频率。

    Method and device for digital-to-RF conversion
    24.
    发明申请
    Method and device for digital-to-RF conversion 有权
    数字到RF转换的方法和设备

    公开(公告)号:US20050113043A1

    公开(公告)日:2005-05-26

    申请号:US10717986

    申请日:2003-11-20

    摘要: A digital to RF-conversion device that combines the D/A conversion function and the upconversion function by a RF-carrier or IF-signal. The device comprises a plurality of parallel unit cells, each of which is a mixer cell type converter having a differential data switch section connected in series to a differential LO-switch pair. The differential LO-switch is further connected in series to a current source. Each unit cell is adapted to receive a control voltage indicative of a data signal value.

    摘要翻译: 数字到RF转换器件,通过RF载波或IF信号组合D / A转换功能和上变频功能。 该装置包括多个并行单元单元,每个单元单元是具有与差分LO开关对串联的差分数据开关部分的混频器单元型转换器。 差分LO开关还与电流源串联连接。 每个单位单元适于接收指示数据信号值的控制电压。

    Voltage controlled capacitive elements having a biasing network
    25.
    发明授权
    Voltage controlled capacitive elements having a biasing network 有权
    具有偏压网络的压控电容元件

    公开(公告)号:US06833769B2

    公开(公告)日:2004-12-21

    申请号:US10394463

    申请日:2003-03-21

    IPC分类号: H03B104

    摘要: A voltage-controlled oscillator includes a resonator circuit and a voltage source. The resonator circuit includes a capacitive circuit that has a plurality of analog voltage controlled capacitive elements coupled to one another. The voltage source is coupled to the resonator circuit and provides a voltage to the plurality of analog voltage controlled capacitive elements. Each of the plurality of analog voltage controlled capacitive elements is activated as a function of the voltage thereby increasing linearity of a frequency tuning voltage parameter of the resonator.

    摘要翻译: 压控振荡器包括谐振器电路和电压源。 谐振器电路包括具有彼此耦合的多个模拟电压控制的电容元件的电容电路。 电压源耦合到谐振器电路,并向多个模拟电压控制的电容元件提供电压。 多个模拟电压控制电容元件中的每一个被激活为电压的函数,由此增加谐振器的频率调谐电压参数的线性度。

    Method and apparatus for reducing power consumption in transceivers in wireless communications systems having a power control loop
    26.
    发明授权
    Method and apparatus for reducing power consumption in transceivers in wireless communications systems having a power control loop 有权
    具有功率控制回路的无线通信系统中用于降低收发器功耗的方法和装置

    公开(公告)号:US06647273B2

    公开(公告)日:2003-11-11

    申请号:US10034837

    申请日:2001-12-28

    IPC分类号: H04B700

    摘要: An apparatus (100) and corresponding method for use by a first transceiver in saving power when communicating over a wireless communication system with a second transceiver, the first having an operating cycle including an interval in which it sends transmit power requests to the second, the transmit power requests being made based on measurements of the signal received by the first and performed in an interval of the operating cycle in which the operational parameters correspond to a power control measurement state. The method includes: when no power control measurements are being made, a step (44b) of enabling receiver tuning to adjust the receiver operational parameters to place the receiver in a less power-consuming internal state.

    摘要翻译: 一种用于在通过无线通信系统与第二收发器进行通信时由第一收发器使用的装置(100)和相应的方法,其中所述装置(100)和相应的方法用于在通过无线通信系统进行通信时节省功率,所述装置(100) 基于由所述第一信号接收的信号的测量值发送功率请求,并且在所述操作周期的间隔中执行,其中所述操作参数对应于功率控制测量状态。 该方法包括:当没有进行功率控制测量时,使得接收机调谐的步骤(44b)能够调整接收机操作参数以将接收机置于更少功耗的内部状态。

    Intermodulation detector for a radio receiver

    公开(公告)号:US06646449B2

    公开(公告)日:2003-11-11

    申请号:US10034643

    申请日:2001-12-28

    IPC分类号: G01R2320

    CPC分类号: H04B1/1027 H04B1/109

    摘要: An intermodulation detector (11) that operates standalone or in parallel with a radio receiver (10) of a radio receiver system (100) including a receiver tuning logic module (12), and, in the case of operating standalone, provides signals conveying information about intermodulation power in the receiver frequency band, and in case of operating in parallel with a radio receiver (10), provides to the receiver tuning logic module signals conveying information about power aliasing into the frequency band to which the radio receiver is tuned.

    Terminal having a variable duplex capability

    公开(公告)号:US08462671B2

    公开(公告)日:2013-06-11

    申请号:US11887088

    申请日:2005-04-07

    IPC分类号: H04B1/44

    摘要: A cellular telecommunications terminal having a full-duplex mode of operation and a half-duplex mode of operation, including a first cellular transmitter and a first cellular receiver operable, when the terminal is in the full-duplex mode, to transmit and receive at the same time and operable, when the terminal is in the half-duplex mode, to transmit and receive at different times and not at the same time; and a switching control for changing the mode of operation of the terminal while operating in the full-duplex mode from the full-duplex mode to the half-duplex mode.

    Terminal having a variable duplex capability
    29.
    发明申请
    Terminal having a variable duplex capability 有权
    具有可变双工功能的终端

    公开(公告)号:US20090213765A1

    公开(公告)日:2009-08-27

    申请号:US11887088

    申请日:2005-04-07

    IPC分类号: H04B7/005

    摘要: A cellular telecommunications terminal having a full-duplex mode of operation and a half-duplex mode of operation, including a first cellular transmitter and a first cellular receiver operable, when the terminal is in the full-duplex mode, to transmit and receive at the same time and operable, when the terminal is in the half-duplex mode, to transmit and receive at different times and not at the same time; and a switching control for changing the mode of operation of the terminal while operating in the full-duplex mode from the full-duplex mode to the half-duplex mode.

    摘要翻译: 一种具有全双工操作模式和半双工操作模式的蜂窝电信终端,包括第一蜂窝发射机和第一蜂窝接收机,当终端处于全双工模式时,该第一蜂窝发射机和第一蜂窝接收器可在该全双工模式下进行发射和接收 同时可操作,当终端处于半双工模式时,可以在不同时间而不是在同一时间进行发送和接收; 以及切换控制,用于在从全双工模式到半双工模式的全双工模式下操作时改变终端的操作模式。

    Automatic receiver calibration with noise and fast fourier transform
    30.
    发明授权
    Automatic receiver calibration with noise and fast fourier transform 失效
    自动接收机校准与噪声和快速傅立叶变换

    公开(公告)号:US07453934B2

    公开(公告)日:2008-11-18

    申请号:US11169284

    申请日:2005-06-27

    IPC分类号: H04B17/00

    CPC分类号: H04B17/21

    摘要: The present invention provides a method for automatic calibration of a signal path in receivers (e.g., radio frequency receivers) using a noise (and not a specific test signal) as a source and a fast Fourier transform (FFT) of the noise for correcting various parameters related to an inphase/quadrature (I/Q) imbalance in a frequency domain. The present invention (method and apparatus) can provide detecting and correcting an I/Q phase error, an I/Q amplitude error, an absolute corner frequency of the analog baseband filter, and a relative corner frequency of the analog baseband filters just by using the noise as a stimuli. This calibration can be used for a factory calibration or it can be used as an on-site calibration for base stations. Mobile devices can calibrate themselves independently of their location. This reduces the requirements for the test equipment in the manufacturing and maintenance stages.

    摘要翻译: 本发明提供一种使用噪声(而不是特定的测试信号)作为源的接收机(例如,射频接收机)中的信号路径的自动校准和用于校正各种噪声的噪声的快速傅里叶变换(FFT)的方法 与频域中的同相/正交(I / Q)不平衡相关的参数。 本发明(方法和装置)可以提供检测和校正I / Q相位误差,I / Q振幅误差,模拟基带滤波器的绝对转角频率以及模拟基带滤波器的相对转角频率,只需使用 噪音作为刺激。 该校准可用于工厂校准,也可用作基站的现场校准。 移动设备可以独立于他们的位置进行自我校准。 这减少了制造和维护阶段对测试设备的要求。