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35 条记录 (耗时 0.021 秒)

    Constant broadcast channel timing in a wireless communication system
    1.
    发明申请
    Constant broadcast channel timing in a wireless communication system 审中-公开
    在无线通信系统中的恒定广播频道定时

    公开(公告)号：US20060250940A1

    公开(公告)日：2006-11-09

    申请号：US11403143

    申请日：2006-04-11

    申请人： Olav Tirkkonen ,  Pauli Seppinen ,  Mika Rinne ,  Gilles Charbit

    发明人： Olav Tirkkonen ,  Pauli Seppinen ,  Mika Rinne ,  Gilles Charbit

    IPC分类号： H04J11/00

    CPC分类号： H04L27/2607 ,  H04L27/2608 ,  H04L27/261 ,  H04W56/00

    摘要： Method by which the guard interval in use by a radio access network of a wireless communication system, such as a one using OFDM, is communicated from the radio access network to a mobile station so that the mobile station need not try different guard intervals to determine which is in use. The method is based on transmitting system information indicative of the guard interval at a predetermined time relative to a training sequence. Corresponding equipment is also provided.

    摘要翻译： 无线通信系统的无线接入网络（例如使用OFDM的无线接入网络）使用的保护间隔从无线接入网络传送到移动台的方法，使得移动台不需要尝试不同的保护间隔来确定 正在使用。 该方法基于在相对于训练序列的预定时间发送指示保护间隔的系统信息。 还提供相应的设备。

    Method and apparatus for compensating DC level in an adaptive radio receiver
    2.
    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：US07684775B2

    公开(公告)日：2010-03-23

    申请号：US11601897

    申请日：2006-11-20

    申请人： Jussi Vepsäläinen ,  Aarno Pärssinen ,  Pauli Seppinen ,  Mikael Gustafsson

    发明人： Jussi Vepsäläinen ,  Aarno Pärssinen ,  Pauli Seppinen ,  Mikael Gustafsson

    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，暂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，估计的电压是预定的并且基于 将状态更改为第一个组件块。 还描述了一种用于实施本发明的方法。

    Power control
    3.
    发明申请
    Power control 失效
    功率控制

    公开(公告)号：US20090017859A1

    公开(公告)日：2009-01-15

    申请号：US11664860

    申请日：2004-10-12

    申请人： Pauli Seppinen ,  Risto Kaunisto

    发明人： Pauli Seppinen ,  Risto Kaunisto

    IPC分类号： H04B7/005

    CPC分类号： H04W52/243

    摘要： The invention relates to a method for controlling output power of a radio transmitter, the radio transmitter operating on a radio channel. The method includes determining requested output power level, and deriving output power, which is to be used, on the basis of a power control algorithm having at least a first and a second power control area, maximum output power of the first area being derived at least on the basis of theoretical minimum attenuation to adjacent receivers, and maximum output power of the second area being derived at least on the basis of actual minimum attenuation to adjacent receivers, wherein an adjacent receiver is a receiver operating on an adjacent channel with respect to the operating channel of said radio transmitter.

    摘要翻译： 本发明涉及一种用于控制无线电发射机的输出功率的方法，无线电发射机在无线电信道上操作。 该方法包括：基于具有至少第一和第二功率控制区域的功率控制算法来确定所请求的输出功率电平，以及导出要使用的输出功率，所述第一区域的最大输出功率从 至少基于对相邻接收机的理论最小衰减，以及至少基于对相邻接收机的实际最小衰减导出第二区域的最大输出功率，其中相邻接收机是在相邻信道上相对于 所述无线电发射机的操作信道。

    Method and apparatus providing calibration technique for RF performance tuning
    4.
    发明申请
    Method and apparatus providing calibration technique for RF performance tuning 审中-公开

    公开(公告)号：US20060160510A1

    公开(公告)日：2006-07-20

    申请号：US11361172

    申请日：2006-02-23

    申请人： Pauli Seppinen ,  Aarno Parssinen ,  Mikael Gustafsson ,  Mika Makitalo

    发明人： Pauli Seppinen ,  Aarno Parssinen ,  Mikael Gustafsson ,  Mika Makitalo

    IPC分类号： H04B1/06 ,  H04B7/00

    CPC分类号： H04B17/21 ,  H04B1/30 ,  H04B17/20 ,  H04B17/318

    摘要： A method is disclosed for operating a RF receiver of a communications equipment, as is circuitry for implementing the method. The method includes, while operating under the control of a data processor of the communications equipment, generating a calibration signal; injecting the calibration signal into a low noise amplifier (LNA) of the RF receiver; measuring a downconverted response of the receiver at a plurality of different frequencies of the calibration signal, or measuring the downconverted response of the receiver at a plurality of different LNA tuning combinations using a fixed calibration frequency, and at least one of tuning a resonance frequency of at least one LNA resonator based on the measured downconverted response so as to compensate at least for variations in component values that comprise the at least one resonator, or adjusting the linearity of the receiver.

    Power control
    8.
    发明授权
    Power control 失效
    功率控制

    公开(公告)号：US07715866B2

    公开(公告)日：2010-05-11

    申请号：US11664860

    申请日：2004-10-12

    申请人： Pauli Seppinen ,  Risto Kaunisto

    发明人： Pauli Seppinen ,  Risto Kaunisto

    IPC分类号： H04B7/00 ,  H04Q7/20

    CPC分类号： H04W52/243

    摘要： The invention relates to a method for controlling output power of a radio transmitter, the radio transmitter operating on a radio channel. The method includes determining requested output power level, and deriving output power, which is to be used, on the basis of a power control algorithm having at least a first and a second power control area, maximum output power of the first area being derived at least on the basis of theoretical minimum attenuation to adjacent receivers, and maximum output power of the second area being derived at least on the basis of actual minimum attenuation to adjacent receivers, wherein an adjacent receiver is a receiver operating on an adjacent channel with respect to the operating channel of said radio transmitter.

    摘要翻译： 本发明涉及一种用于控制无线电发射机的输出功率的方法，无线电发射机在无线电信道上操作。 该方法包括：基于具有至少第一和第二功率控制区域的功率控制算法来确定所请求的输出功率电平，以及导出要使用的输出功率，所述第一区域的最大输出功率从 至少基于对相邻接收机的理论最小衰减，以及至少基于对相邻接收机的实际最小衰减导出第二区域的最大输出功率，其中相邻接收机是在相邻信道上相对于 所述无线电发射机的操作信道。

    Automatic receiver calibration with noise and fast fourier transform
    9.
    发明申请
    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：US20060291549A1

    公开(公告)日：2006-12-28

    申请号：US11169284

    申请日：2005-06-27

    申请人： Pauli Seppinen ,  Julius Koskela ,  Mikael Gustafsson

    发明人： Pauli Seppinen ,  Julius Koskela ,  Mikael Gustafsson

    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。

    DIGITAL TUNING OF A VOLTAGE CONTROLLED OSCILLATOR OF A PHASE LOCKED LOOP
    10.
    发明申请
    DIGITAL TUNING OF A VOLTAGE CONTROLLED OSCILLATOR OF A PHASE LOCKED LOOP 有权
    相位锁定环的电压控制振荡器的数字调谐

    公开(公告)号：US20060055468A1

    公开(公告)日：2006-03-16

    申请号：US10931050

    申请日：2004-08-30

    申请人： Juha Hallivuori ,  Pauli Seppinen ,  Mika Salmi

    发明人： Juha Hallivuori ,  Pauli Seppinen ,  Mika Salmi

    IPC分类号： H03L7/00

    CPC分类号： H03L7/087 ,  H03L7/10 ,  H03L7/18

    摘要： This invention describes a method for a component/system level design of an adaptive radio receiver in electronic communication devices (e.g., mobile phones) by providing an automatic digital tuning of a voltage controlled oscillator of a phase locked loop (PLL) instead of a prior-art pre-calibration. A normal PLL for frequency locking is used which does not need any additional pre-calibration blocks to account for different temperatures or any other extreme conditions. If the current switch setting does not allow the locking, i.e., the VCO output signal frequency is still far away from a reference frequency, the PLL “coarse” tuning will cause the switch condition to change and bring the frequency within a reasonable range using an additional phase detector PD2 loop.

    摘要翻译： 本发明通过提供锁相环（PLL）的压控振荡器而不是先前的自动数字调谐来描述用于电子通信设备（例如，移动电话）中的自适应无线电接收机的部件/系统级设计的方法 - 预先校准。 使用用于频率锁定的常规PLL，其不需要任何额外的预校准块来解决不同的温度或任何其它极端条件。 如果当前的开关设置不允许锁定，即VCO输出信号频率仍然远离参考频率，则PLL“粗调”调谐将导致开关条件发生变化，并使频率在合理范围内使用 附加相位检测器PD 2回路。