Method and device for generating OVSF code words
    4.
    发明授权
    Method and device for generating OVSF code words 失效
    用于生成OVSF代码字的方法和设备

    公开(公告)号:US06646579B2

    公开(公告)日:2003-11-11

    申请号:US10203067

    申请日:2002-09-23

    IPC分类号: H04B7216

    摘要: A code word generator for OVSF codes, comprising an intermediate memory device (16) which is used to input a calculation index as a binary calculation index data word, a calculation device (17) which permutes the significant data bits of the calculation index data word bit-by-bit so that a calculation basis (B) can be generated, a counter (21) for producing a counting variable (Z) and provided with a logic circuit comprising several AND gates for bit-by-bit linkage of the counting variables (Z) generated with the calculation basis (B) in order to form a linking data word and several XOR gates for logical reduction of the linking data word to form code word data bits of the OVSF code word.

    摘要翻译: 一种用于OVSF码的码字生成器,包括用于将计算索引作为二进制计算索引数据字输入的中间存储器件(16),计算装置(17),其将计算索引数据字的有效数据位 逐位地使得可以生成计算基础(B),用于产生计数变量(Z)的计数器(21),并且设置有包括多个与门的逻辑电路,用于逐位连接计数 以计算基础(B)生成的变量(Z),以便形成链接数据字和多个用于逻辑缩减链接数据字的XOR门,以形成OVSF码字的码字数据位。

    Apparatus for finely synchronizing code signals
    6.
    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
    10.
    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。