利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

93 条记录 (耗时 0.041 秒)

    Mobile radio telephone receiver
    81.
    发明授权
    Mobile radio telephone receiver 有权
    移动无线电话接收机

    公开(公告)号：US07450630B2

    公开(公告)日：2008-11-11

    申请号：US09809788

    申请日：2001-03-16

    申请人： Markus Doetsch ,  Tideya Kella ,  Peter Schmidt ,  Peter Jung ,  Jörg Plechinger ,  Michael Schneider

    发明人： Markus Doetsch ,  Tideya Kella ,  Peter Schmidt ,  Peter Jung ,  Jörg Plechinger ,  Michael Schneider

    IPC分类号： H04B1/00

    CPC分类号： H04B1/7117

    摘要： A data processing device in a mobile radio telephone receiver contains a RAKE receiver portion with RAKE fingers and a path search and evaluation device for detecting paths of the air interface which must be allocated to the individual RAKE fingers and for estimating one or more parameters with respect to each detected path. A finger selection and power consumption reduction device performs a clock rate reduction or disconnects individual RAKE fingers in consideration of the path parameters.

    摘要翻译： 移动无线电话接收机中的数据处理装置包含具有RAKE指状物的RAKE接收机部分和用于检测空中接口的路径的路径搜索和评估装置，该路径必须分配给各RAKE手指并且用于估计一个或多个参数 到每个检测到的路径。 考虑到路径参数，手指选择和功耗降低装置执行时钟速率降低或断开各RAKE手指。

    Beam forming apparatus and method using interference power estimation in an array antenna system
    83.
    发明申请
    Beam forming apparatus and method using interference power estimation in an array antenna system 审中-公开
    在阵列天线系统中使用干涉功率估计的光束形成装置和方法

    公开(公告)号：US20050259006A1

    公开(公告)日：2005-11-24

    申请号：US11135631

    申请日：2005-05-24

    申请人： Byoung-Yun Kim ,  Song-Hun Kim ,  Hyeon-Woo Lee ,  Kwang-Yung Jeong ,  Hye-Young Lee ,  Peter Jung

    发明人： Byoung-Yun Kim ,  Song-Hun Kim ,  Hyeon-Woo Lee ,  Kwang-Yung Jeong ,  Hye-Young Lee ,  Peter Jung

    IPC分类号： H04B7/04 ,  G01S3/16 ,  G01S3/72 ,  G01S3/74 ,  H01Q3/00 ,  H04B1/00 ,  H04B7/08

    CPC分类号： G01S3/74 ,  G01S3/72 ,  H04B7/086

    摘要： An apparatus and method are provided for simply estimating joint channel and Direction-of-Arrival (DOA) to efficiently estimate a channel impulse response associated with a spatially selective transmission channel occurring in a mobile radio channel, and performing efficient beam forming using the simplified joint channel and DOA estimation are provided. A receiver estimates the total interference power using power for each interference signal, estimates a spectral noise density, calculates steering vectors considering predetermined DOAs, and jointly calculates optimal weight vectors for each DOA of each user by applying the interference power and the spectral noise density to the steering vectors. The beam forming reduces implementation complexity of a TDD system such as a TD-SCDMA and increases beam forming efficiency in a mobile environment by efficiently using spatial diversity.

    摘要翻译： 提供一种装置和方法，用于简单地估计联合信道和到达方向（DOA）以有效地估计与在移动无线电信道中发生的空间选择性传输信道相关联的信道脉冲响应，并且使用简化接头执行有效的波束形成 提供信道和DOA估计。 接收机估计使用每个干扰信号的功率的总干扰功率，估计频谱噪声密度，计算考虑到预定的DOA的导向向量，并且通过将干扰功率和频谱噪声密度应用于每个用户的每个DOA来共同计算最优权重向量 导向矢量。 波束形成降低了诸如TD-SCDMA的TDD系统的实现复杂度，并且通过有效地使用空间分集来增加移动环境中的波束形成效率。

    Method and device for synchronizing mobile radio receivers in a mobile radio system
    84.
    发明授权
    Method and device for synchronizing mobile radio receivers in a mobile radio system 失效
    用于在移动无线电系统中同步移动无线电接收机的方法和设备

    公开(公告)号：US06954483B2

    公开(公告)日：2005-10-11

    申请号：US10047001

    申请日：2002-01-16

    申请人： Markus Doetsch ,  Tideya Kella ,  Peter Schmidt ,  Peter Jung ,  Jörg Plechinger ,  Michael Schneider

    发明人： Markus Doetsch ,  Tideya Kella ,  Peter Schmidt ,  Peter Jung ,  Jörg Plechinger ,  Michael Schneider

    IPC分类号： H03H17/02 ,  H03H17/06 ,  H04B1/707 ,  H04B7/005 ,  H04B7/26 ,  H04L7/00 ,  H04B1/69

    CPC分类号： H04B1/7075

    摘要： Mobile radio receivers in a mobile radio system are synchronized. A first synchronization channel is provided, which has a first frequency and via which a code which is known to all the mobile radio receivers and to all the base stations of the mobile radio system is transmitted with a signal. The transmission from a base station to a mobile radio receiver delays the signal by an unknown time period and the first frequency is displaced by the transmission to a second frequency. The method includes a correlation and sampling of the received signal, digital filtering of the correlated and sampled signal, squaring of the filtered signal, determination of the maximum signal level of the squared signal, estimation of the unknown time period with the maximum signal level, despreading of the received signal with the known code, taking into account the just-estimated time period, and fine-tuning of the second frequency to the first frequency.

    摘要翻译： 移动无线电系统中的移动无线电接收机是同步的。 提供了第一同步信道，其具有第一频率，通过该信号发送所有移动无线电接收机和移动无线电系统的所有基站已知的码。 从基站到移动无线电接收机的传输将信号延迟未知时间段，并且第一频率被传输移位到第二频率。 该方法包括接收信号的相关和采样，相关和采样信号的数字滤波，滤波信号的平方，平方信号的最大信号电平的确定，具有最大信号电平的未知时间周期的估计， 考虑到刚刚估计的时间周期，以及将第二频率微调到第一频率，用已知代码对接收到的信号进行解扩。

    CDMA receiver
    86.
    发明授权
    CDMA receiver 失效
    CDMA接收机

    公开(公告)号：US06888877B2

    公开(公告)日：2005-05-03

    申请号：US09936771

    申请日：2001-01-17

    申请人： Markus Doetsch ,  Tideya Kella ,  Peter Schmidt ,  Peter Jung ,  Joerg Plechinger ,  Michael Schneider

    发明人： Markus Doetsch ,  Tideya Kella ,  Peter Schmidt ,  Peter Jung ,  Joerg Plechinger ,  Michael Schneider

    IPC分类号： H04B1/707 ,  H04J11/00

    CPC分类号： H04B1/712 ,  H04B1/7103 ,  H04B2201/70701 ,  H04J13/0044

    摘要： CDMA Receiver. According to one embodiment, a CDMA receiver is provided for receiving a CDMA signal in a multi-subscriber environment. The multi-subscriber environment can include a receiving device for receiving the CDMA signal. Further, the environment can include a Rake receiving circuit for detection of signal components of the CDMA signal which are transmitted via the various signal paths. The environment can also include a channel estimation circuit for estimating channel coefficients of a transmission channel coefficient h of a transmission channel H by means of a predetermined reference data sequence contained in the received CDMA signal. A weighting coefficient calculation device can calculate weighting coefficients for the various signal components of the CDMA signal. Further, the environment can include a weighting circuit for weighting the signal components with the calculaed weighting coefficients. A combiner can combine the weighted signal components to form an estimated received data signal.

    摘要翻译： CDMA接收机。 根据一个实施例，提供CDMA接收机用于在多用户环境中接收CDMA信号。 多用户环境可以包括用于接收CDMA信号的接收设备。 此外，环境可以包括用于检测通过各种信号路径发送的CDMA信号的信号分量的耙式接收电路。 环境还可以包括用于通过包含在所接收的CDMA信号中的预定参考数据序列来估计传输信道H的传输信道系数h的信道系数的信道估计电路。 加权系数计算装置可以计算CDMA信号的各种信号分量的加权系数。 此外，环境可以包括用于利用计算的加权系数对信号分量进行加权的加权电路。 组合器可以组合加权信号分量以形成估计的接收数据信号。

    Circuit configuration for a multistandard communications terminal
    88.
    发明授权
    Circuit configuration for a multistandard communications terminal 有权
    多标准通信终端的电路配置

    公开(公告)号：US06697438B2

    公开(公告)日：2004-02-24

    申请号：US09897283

    申请日：2001-07-02

    申请人： Markus Doetsch ,  Peter Jung ,  Jörg Plechinger ,  Peter Schmidt ,  Sönke Mehrgardt

    发明人： Markus Doetsch ,  Peter Jung ,  Jörg Plechinger ,  Peter Schmidt ,  Sönke Mehrgardt

    IPC分类号： H03K900

    CPC分类号： H04B1/406 ,  H04B1/30

    摘要： A circuit configuration for a multistandard communications terminal has, for the reception of radio signals, a radio frequency component with a receive conversion stage and a signal-processing circuit connected downstream of the radio frequency component. The signal-processing circuit has an A/D converter and a digital filter. The pass-band of the digital filter is variable. In operation, the pass-band is set according to a selected system standard of the received radio signals.

    摘要翻译： 用于多标准通信终端的电路配置具有用于接收无线电信号的具有接收转换级的射频分量和连接在射频分量下游的信号处理电路。 信号处理电路具有A / D转换器和数字滤波器。 数字滤波器的通带是可变的。 在操作中，根据所接收的无线电信号的所选系统标准设置通带。