Frequency generating system for a mobile radio dual-band transceiver

    公开(公告)号:US06993356B2

    公开(公告)日:2006-01-31

    申请号:US09977786

    申请日:2001-10-15

    申请人: Stefan Herzinger

    发明人: Stefan Herzinger

    IPC分类号: H04B1/16 H04B1/38

    CPC分类号: H04B1/0053

    摘要: In a frequency generating system, a triple/single local-oscillator concept for receiving and transmitting in the lower frequency band, transmitting in the upper frequency band, and receiving in the upper frequency band is used for a dual-band transceiver so that a single band-switched VCO can be used as local oscillator for setting the frequency in all four possible operating cases. The system can be used, for example, in highly integrated dual-band mobile parts for GSM 900/1800 mobile radio.

    Digital phase-frequency detector
    13.
    发明授权
    Digital phase-frequency detector 有权
    数字相位检波器

    公开(公告)号:US06192094B1

    公开(公告)日:2001-02-20

    申请号:US09470622

    申请日:1999-12-22

    IPC分类号: H03D324

    CPC分类号: H03L7/0891 H03L7/183

    摘要: In a digital phase-frequency detector with anti-backlash pulses, which prevent the mapping of very short correction pulses occurring on the basis of small phase differences by use of an AND logic circuit controlling the RESET of two flip flop circuits, a waste time is shortened by reducing a duration of the RESET pulse. The integrable phase-frequency detector according to the invention can be used in fast digital phase-locked control loops, for example for tuners, frequency synthesizers in the field of mobile radio.

    摘要翻译: 在具有防反向间隙脉冲的数字相位频率检测器中,通过使用控制两个触发器电路的复位的AND逻辑电路来防止基于小的相位差发生的非常短的校正脉冲的映射,浪费时间是 通过减少RESET脉冲的持续时间来缩短。 根据本发明的可积分相位 - 频率检测器可用于快速数字锁相控制环路,例如用于移动无线电领域的调谐器,频率合成器。

    Method for searching for a radio cell and mobile terminal
    14.
    发明授权
    Method for searching for a radio cell and mobile terminal 有权
    用于搜索无线电小区和移动终端的方法

    公开(公告)号:US09113399B2

    公开(公告)日:2015-08-18

    申请号:US13563855

    申请日:2012-08-01

    IPC分类号: H04W48/16

    CPC分类号: H04W48/16

    摘要: A method for searching for a radio cell is provided comprising determining, for each of a plurality of frequencies, a reception strength value indicating the reception strength within a first bandwidth around the frequency, wherein the first bandwidth is smaller than a second bandwidth with which a radio cell to be searched is operated; determining, based on the determined reception strength values, a spectral position for a radio cell at which a cell search is to be carried out; and carrying out a cell search at the determined spectral position.

    摘要翻译: 提供了一种用于搜索无线电小区的方法,包括为多个频率中的每一个确定指示频率周围的第一带宽内的接收强度的接收强度值,其中第一带宽小于第二带宽, 操作要搜索的无线电信元; 基于所确定的接收强度值,确定要进行小区搜索的无线电小区的频谱位置; 并在确定的光谱位置执行小区搜索。

    Digital modulation
    15.
    发明授权
    Digital modulation 有权
    数字调制

    公开(公告)号:US08873667B2

    公开(公告)日:2014-10-28

    申请号:US12567508

    申请日:2009-09-25

    摘要: The present application relates to embodiments of methods and a device for digital modulation. In a first embodiment of the method, the following steps are executed: determining a polarity of the signal, providing an inverted carrier signal, providing an inverted signal by an inversion of the polarity of at least one portion of the signal, mixing the signal with the carrier signal when the signal has the first polarity, and mixing the inverted signal with the inverted carrier signal when the signal has the second polarity.

    摘要翻译: 本申请涉及用于数字调制的方法和设备的实施例。 在该方法的第一实施例中,执行以下步骤:确定信号的极性,提供反相载波信号,通过反转信号的至少一部分的极性来提供反相信号,将信号与 当信号具有第一极性时,载波信号,并且当信号具有第二极性时,将反相信号与反相载波信号混合。

    METHOD FOR SEARCHING FOR A RADIO CELL AND MOBILE TERMINAL
    16.
    发明申请
    METHOD FOR SEARCHING FOR A RADIO CELL AND MOBILE TERMINAL 有权
    搜索无线电小区和移动终端的方法

    公开(公告)号:US20140038587A1

    公开(公告)日:2014-02-06

    申请号:US13563855

    申请日:2012-08-01

    IPC分类号: H04W24/00 H04W88/02

    CPC分类号: H04W48/16

    摘要: A method for searching for a radio cell is provided comprising determining, for each of a plurality of frequencies, a reception strength value indicating the reception strength within a first bandwidth around the frequency, wherein the first bandwidth is smaller than a second bandwidth with which a radio cell to be searched is operated; determining, based on the determined reception strength values, a spectral position for a radio cell at which a cell search is to be carried out; and carrying out a cell search at the determined spectral position.

    摘要翻译: 提供了一种用于搜索无线电小区的方法,包括为多个频率中的每一个确定指示频率周围的第一带宽内的接收强度的接收强度值,其中第一带宽小于第二带宽, 操作要搜索的无线电信元; 基于所确定的接收强度值,确定要进行小区搜索的无线电小区的频谱位置; 并在确定的光谱位置执行小区搜索。

    COMMUNICATION DEVICE INCLUDING MULTIPLE LO RECEIVERS
    17.
    发明申请
    COMMUNICATION DEVICE INCLUDING MULTIPLE LO RECEIVERS 有权
    包括多个接收器的通信设备

    公开(公告)号:US20120142300A1

    公开(公告)日:2012-06-07

    申请号:US12957507

    申请日:2010-12-01

    IPC分类号: H04W88/02

    摘要: Some embodiments of the present disclosure relate to multiband receivers that include at least one divider unit having a divisor that is other-than-two. For example, in some embodiments the divisor is an odd integer (e.g., three). Such divisors allow oscillators for respective receiver subunits in a multi-band receiver to have frequencies that are sufficiently different from one another so as to limit cross-talk interference there between, even when the receiver subunits are concurrently receiving data on adjacent channels. To facilitate this other-than-two divisor, a phase error compensation block is often used to compensate for the effects of using the other-than-two divisor.

    摘要翻译: 本公开的一些实施例涉及多频带接收机,其包括至少一个具有不同于二的除数的除法器单元。 例如,在一些实施例中,除数是奇整数(例如,三个)。 这样的除数允许多频带接收机中的相应接收器子单元的振荡器具有彼此充分不同的频率,以便即使当接收机子单元同时在相邻信道上接收数据时也限制其间的串扰干扰。 为了方便这个除二分之一以外,通常使用相位误差补偿块来补偿使用其他二除数的影响。

    Hybrid polar transmission apparatus for a radio transmission system
    19.
    发明申请
    Hybrid polar transmission apparatus for a radio transmission system 审中-公开
    用于无线电传输系统的混合极性传输装置

    公开(公告)号:US20070142000A1

    公开(公告)日:2007-06-21

    申请号:US11300836

    申请日:2005-12-15

    申请人: Stefan Herzinger

    发明人: Stefan Herzinger

    IPC分类号: H04B1/02

    CPC分类号: H04B1/04

    摘要: The invention relates to a polar transmission apparatus having a polar transformer for transformation of a baseband signal to an amplitude signal and a phase signal. The apparatus includes a frequency synthesizer for production of a radio-frequency signal from the phase signal, having a modulator for amplitude modulation of the radio-frequency signal. The modulation is selectively carried out either by a mixer mixing the radio-frequency signal with the amplitude signal or by an amplifier amplifying the radio-frequency signal and modulating the gain with the amplitude signal.

    摘要翻译: 本发明涉及一种具有用于将基带信号变换为振幅信号和相位信号的极性变换器的极性传输装置。 该装置包括用于从相位信号产生射频信号的频率合成器,具有用于射频信号的幅度调制的调制器。 选择性地通过将射频信号与振幅信号混合的混合器或通过放大放射频率信号的放大器和用振幅信号调制增益来进行调制。

    Two-point modulator arrangement
    20.
    发明授权
    Two-point modulator arrangement 有权
    两点调制器布置

    公开(公告)号:US07142070B2

    公开(公告)日:2006-11-28

    申请号:US10947847

    申请日:2004-09-23

    IPC分类号: H03C3/06

    摘要: A two-point modulator arrangement is specified, said arrangement being developed with respect to conventional two-point modulators to the effect that the high-pass coupling-in point of the modulator that comprises a phase locked loop is formed by an expanded loop filter. In accordance with the present principle, the expanded loop filter comprises a coupling-in element, at which the modulation signal is combined with the output signal of a phase comparator. A voltage-controlled oscillator having only one tuning input can thus advantageously be used.

    摘要翻译: 指定了两点调制器布置,所述布置相对于传统的两点调制器被展开,使得包括锁相环的调制器的高通耦合点由扩展环路滤波器形成。 根据本原理,扩展环路滤波器包括耦合入元件,其中调制信号与相位比较器的输出信号组合。 因此,可以有利地使用仅具有一个调谐输入的压控振荡器。