Apparatus for finely synchronizing code signals
    3.
    发明授权
    Apparatus for finely synchronizing code signals 失效
    用于精细同步码信号的装置

    公开(公告)号:US06891886B2

    公开(公告)日:2005-05-10

    申请号:US10139195

    申请日:2002-05-06

    CPC分类号: H04B1/7085

    摘要: An apparatus for finely synchronizing code signals with an encoded received signal includes a sampling device for sampling the received signal at regular sampling intervals, a pulse shaper for shaping the sampled received signal pulses in order to output a first and second pulse-shaped sample in dependence on an autocorrelation function, a buffer for buffering the two samples, a code signal generator for generating the code signal, correlation devices for correlating the generated code with the two buffered samples to form two correlation values, and an interpolation device for forming an interpolation value as a function of the two pulse-shaped samples and the deviation between the two correlation values.

    摘要翻译: 用于将编码信号与编码的接收信号精细同步的装置包括用于以规则采样间隔对接收信号进行采样的采样装置,用于整形采样的接收信号脉冲的脉冲整形器,以依次输出第一和第二脉冲样本 在自相关函数上,用于缓冲两个样本的缓冲器,用于产生代码信号的代码信号发生器,用于将生成的代码与两个缓冲的样本相关联以形成两个相关值的相关器件,以及用于形成插值的内插器件 作为两个脉冲样本的函数和两个相关值之间的偏差。

    Method for estimating the channel impulse response of a mobile radio channel
    5.
    发明授权
    Method for estimating the channel impulse response of a mobile radio channel 有权
    用于估计移动无线电信道的信道脉冲响应的方法

    公开(公告)号:US06765951B2

    公开(公告)日:2004-07-20

    申请号:US10047614

    申请日:2002-01-15

    IPC分类号: H04B1530

    摘要: A method for estimating a channel impulse response of a mobile radio channel is described. The mobile radio channel is accessed over a wide bandwidth by a code division multiplex method. A second mobile radio channel continuously transmits sequences to a multiplicity of mobile radio receivers, and the sequences are known to each of the multiplicity of mobile radio receivers. The delay parameters of the mobile radio channel are estimated using the sequences transmitted via the second mobile radio channel. The mobile radio receiver is adjusted in accordance with the delay parameters estimated and weighting factors of the mobile radio channel are determined.

    摘要翻译: 描述了用于估计移动无线电信道的信道脉冲响应的方法。 移动无线电信道通过码分多址方式在宽带宽上被访问。 第二移动无线电信道连续向多个移动无线电接收机发送序列,并且多个移动无线电接收机中的每一个都知道这些序列。 使用经由第二移动无线电信道发送的序列来估计移动无线电信道的延迟参数。 移动无线电接收机根据估计的延迟参数进行调整,确定移动无线电信道的加权因子。

    Mobile radio telephone receiver
    9.
    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

    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。

    Method and device for synchronizing mobile radio receivers in a mobile radio system
    10.
    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

    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。