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    Method and device for decoding a sequence of physical signals, reliability detection unit and viterbi decoding unit
    6.
    发明授权
    Method and device for decoding a sequence of physical signals, reliability detection unit and viterbi decoding unit 失效
    用于对物理信号序列进行解码的方法和装置，可靠性检测单元和维特比译码单元

    公开(公告)号：US07085992B2

    公开(公告)日：2006-08-01

    申请号：US10381542

    申请日：2001-10-24

    申请人： Burkhard Becker ,  Markus Doetsch ,  Peter Jung ,  Tideya Kella ,  Jörg Plechinger ,  Alfredo Ruscitto

    发明人： Burkhard Becker ,  Markus Doetsch ,  Peter Jung ,  Tideya Kella ,  Jörg Plechinger ,  Alfredo Ruscitto

    IPC分类号： H03M13/03

    CPC分类号： H03M13/4169 ,  H03M13/3961 ,  H03M13/41 ,  H03M13/4153 ,  H03M13/6331 ,  H03M13/6343 ,  H03M13/6502

    摘要： A method and device for decoding a sequence of physical signals. A Viterbi algorithm is carried out a first time for all physical signals, resulting in a maximum likelihood path, wherein there is one signal value for each physical signal and which has been determined along the entire trellis according to the Viterbi algorithm. A reliability value is determined for each signal value of the maximum likelihood path. The Viterbi algorithm is then carried out a second time with the following steps: selecting one subregion of the trellis, the subregion having a partial initial signal value and a partial end signal value on the maximum likelihood path; determining one further path in that subregion of the trellis which ends at the partial end signal value of the maximum likelihood path; determining each signal value on the further path and comparing same with the corresponding signal value on the maximum likelihood path relating to the same time; depending on the comparison result, the signal value of the maximum likelihood path is allocated the reliability value determined in the previous iteration step or the minimum of this and the reliability value of the partial end signal value; shifting the subregion of the trellis by at least one time unit; and using, storing and/or outputting the determined signal values and selected reliability values associated with the signal values as the decoded sequence.

    摘要翻译： 一种用于对一系列物理信号进行解码的方法和装置。 对于所有物理信号，维特比算法首次执行，产生最大似然路径，其中每个物理信号存在一个信号值，并且根据维特比算法沿整个网格确定信号值。 确定最大似然路径的每个信号值的可靠性值。 然后通过以下步骤第二次执行维特比算法：在最大似然路径上选择网格的一个子区域，该子区域具有部分初始信号值和部分结束信号值; 确定在最大似然路径的部分结束信号值结束的网格的该子区域中的另一路径; 确定另一路径上的每个信号值并将其与在相同时间相关的最大似然路径上的相应信号值进行比较; 根据比较结果，将最大似然路径的信号值分配在先前迭代步骤中确定的可靠性值或其最小值和部分结束信号值的可靠性值; 将网格的分区域至少移动一个时间单位; 并且使用，存储和/或输出与信号值相关联的所确定的信号值和所选择的可靠性值作为解码序列。

    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。