利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

244 条记录 (耗时 0.039 秒)

    Method and device for generating OVSF code words
    2.
    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

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

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

    IPC分类号： H04B7216

    CPC分类号： H04J13/12 ,  H04B2201/70703 ,  H04J13/0044

    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。

    Turbo-code decoder and turbo-code decoding method with iterative channel parameter estimation
    3.
    发明授权
    Turbo-code decoder and turbo-code decoding method with iterative channel parameter estimation 有权
    Turbo码解码器和具有迭代信道参数估计的Turbo码解码方法

    公开(公告)号：US06574291B2

    公开(公告)日：2003-06-03

    申请号：US10085964

    申请日：2002-02-28

    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： H04L2706

    CPC分类号： H04L1/005 ,  H03M13/2957 ,  H03M13/3776 ,  H03M13/612 ,  H04L1/0068

    摘要： A turbo-code decoder with iterative channel parameter estimation for decoding turbo-coded received data that includes systematic information data and redundant data. The turbo-code decoder includes a weighting circuit for weighting the turbo-coded received data with at least one estimated channel parameter. Estimated value data is generated. A turbo-code coding circuit turbo-codes the generated estimated value data. A comparison circuit compares the turbo-coded estimated value data with the turbo-coded received data, and depending on the result of the comparison, iteratively sets the estimated channel parameter(s) in order to weight the turbo-coded received data.

    摘要翻译： 一种具有迭代信道参数估计的turbo码解码器，用于对包括系统信息数据和冗余数据的turbo编码接收数据进行解码。 turbo码解码器包括用至少一个估计的信道参数对turbo编码的接收数据进行加权的加权电路。 生成估计值数据。 turbo码编码电路对生成的估计值数据进行turbo码的编码。 比较电路将涡轮编码的估计值数据与turbo编码的接收数据进行比较，并且根据比较结果，迭代地设置估计的信道参数以便加权turbo编码的接收数据。

    CDMA receiver
    4.
    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。

    Method for estimating the channel impulse response of a mobile radio channel
    7.
    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

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

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

    IPC分类号： H04B1530

    CPC分类号： H04B1/71057 ,  H04B1/712 ,  H04L25/0204 ,  H04L25/0226

    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。