Method and apparatus for calculation of path weights in a RAKE receiver
    1.
    发明申请
    Method and apparatus for calculation of path weights in a RAKE receiver 审中-公开
    用于计算RAKE接收机中路径权重的方法和装置

    公开(公告)号:US20050025110A1

    公开(公告)日:2005-02-03

    申请号:US10875407

    申请日:2004-06-24

    CPC分类号: H04B1/712 H04B2201/70701

    摘要: A method for calculation of path weights for the equalization of a data signal that is transmitted via a data channel whose power is regulated in a RAKE receiver is disclosed. In the method, at least one uncorrected path weight is calculated for the data signal that is transmitted via the data channel, using channel estimation results that have been obtained on the basis of a common pilot channel. The uncorrected path weight is corrected by multiplying it by a correction factor that contains a ratio of a data-channel-specific gain estimation to a pilot-channel-based gain estimation.

    摘要翻译: 公开了一种用于计算通过在RAKE接收机中调节其功率的数据信道发送的数据信号的均衡的路径权重的方法。 在该方法中,使用基于公共导频信道获得的信道估计结果,对通过数据信道发送的数据信号计算至少一个未校正路径权重。 通过将未校正的路径权重乘以包含数据信道特定增益估计与基于导频信道的增益估计的比率的校正因子来校正。

    Method and apparatus for calculation of correction factors for path weights in a rake receiver
    4.
    发明申请
    Method and apparatus for calculation of correction factors for path weights in a rake receiver 审中-公开
    用于计算耙式接收机中路径权重的校正因子的方法和装置

    公开(公告)号:US20050036538A1

    公开(公告)日:2005-02-17

    申请号:US10875839

    申请日:2004-06-24

    IPC分类号: H04B1/707 H04L27/01

    CPC分类号: H04B1/712 H04B2201/70701

    摘要: A method for calculation of path weights for the equalization of a data signal, that is transmitted via a data channel whose power is regulated, in a RAKE receiver is disclosed. In the method, a path weight is calculated for the data signal that is transmitted via the data channel whose power is regulated and a correction factor is calculated for the path weight. The correction factor includes a ratio of the data-channel-specific gain to the pilot-channel-based gain, and the selection of the common pilot symbols that are used for this purpose depending on the receiver velocity or the time slot format.

    摘要翻译: 公开了一种用于计算RAKE接收机中通过其功率被调节的数据信道发送的数据信号的均衡的路径权重的方法。 在该方法中,针对通过调节功率的数据信道发送的数据信号计算路径权重,并为路径权重计算修正系数。 校正因子包括数据信道特定增益与基于导频信道的增益的比率,以及根据接收机速度或时隙格式选择用于此目的的公共导频符号。

    Adaptive channel estimation by means of variation of the integration length during the despreading of spread-coded training symbol sequences
    5.
    发明申请
    Adaptive channel estimation by means of variation of the integration length during the despreading of spread-coded training symbol sequences 失效
    在扩展编码的训练符号序列的解扩期间通过积分长度的变化进行自适应信道估计

    公开(公告)号:US20050036539A1

    公开(公告)日:2005-02-17

    申请号:US10916900

    申请日:2004-08-12

    IPC分类号: H04B1/707 H04L25/02

    摘要: In the method, the received spread-coded signal sequence rk(i) is first of all correlated with the spread-coded training symbol sequence in a correlator (24) so as to counteract the influence of the transmitted training symbols. The signal sequence which results from the correlation process is then despread in a despreading apparatus (21, 22). The despread signal sequence is integrated over a number (N_MF) of signal values, with the number (N_MF) being set as a function of the channel dynamic range (λ). The sequence of data symbols produced in this way is filtered with fixed or variable filter coefficients in a digital filter (25) in order to produce channel estimation values ({tilde over (H)}(l)).

    摘要翻译: 在该方法中,接收到的扩展编码信号序列rk(i)首先与相关器(24)中的扩展编码训练符号序列相关,以便抵消发送的训练符号的影响。 然后,由去相关处理产生的信号序列在解扩装置(21,22)中进行解扩。 解扩信号序列被集成在数字(N_MF)的信号值上,其中数字(N_MF)被设置为信道动态范围(lambda)的函数。 以这种方式产生的数据符号的序列在数字滤波器(25)中用固定或可变滤波器系数进行滤波,以便产生信道估计值(H(1))。

    Method for the Reconstruction of Zero Crossing Information of Noisy Angle-Modulated Signals Following Limiter-Discriminator Signal Processing
    6.
    发明申请
    Method for the Reconstruction of Zero Crossing Information of Noisy Angle-Modulated Signals Following Limiter-Discriminator Signal Processing 审中-公开
    用于限制器鉴别信号处理后重建噪声角度调制信号的零交叉信息的方法

    公开(公告)号:US20060209967A1

    公开(公告)日:2006-09-21

    申请号:US11276720

    申请日:2006-03-10

    申请人: Jurgen Niederholz

    发明人: Jurgen Niederholz

    IPC分类号: H04B14/04

    CPC分类号: H04L27/1563 H04L27/2337

    摘要: In a method for generating a reduced-noise signal sequence {{circumflex over (t)}i} from a noisy signal sequence {uj} comprising values uj which are characteristic of the temporal position of crossings of a noisy angle-modulated signal through a threshold value, a decision is made (102) as to whether a value {circumflex over (t)}i of the reduced-noise signal sequence is to be generated for the value uj. If this is the case, the value {circumflex over (t)}i is calculated taking into account earlier values uj of the noisy signal sequence for which no values of the reduced-noise signal sequence {{circumflex over (t)}i} were generated.

    摘要翻译: 在一种用于从包括值u> j的噪声信号序列(u j j>)生成降噪噪声信号序列的方法中, 是通过阈值对噪声角度调制信号的交叉的时间位置的特征,做出(102)关于减小噪声信号序列的值t i i是否为 被生成为值u 。 如果是这种情况,则考虑到没有减小噪声信号序列的值的噪声信号序列的较早的值u N i N,计算值t i i, 生成了

    Demodulation of a frequency-modulated received signal by means of a Viterbi algorithm
    7.
    发明申请
    Demodulation of a frequency-modulated received signal by means of a Viterbi algorithm 失效
    通过维特比算法对调频接收信号进行解调

    公开(公告)号:US20050190860A1

    公开(公告)日:2005-09-01

    申请号:US11057554

    申请日:2005-02-14

    CPC分类号: H04L27/2335 H04L25/03178

    摘要: Apparatus for demodulation of a signal which is frequency-modulated with a data symbol sequence {dk}, having a zero crossing detector (1), a generator (2) for production of a sequence {zi}, with zi being calculated from zero crossings ti and ti+1, and having a unit (3) for reconstruction of the data symbol sequence {dk}, which is characterized by a minimum Euclidean distance between the sequence {zi} and an auxiliary sequence, with each sequence element in the auxiliary sequence being formed from convolution of the data symbol sequence {dk} with a sequence {hi,k} relating to the index k, and with the sequences {hi,k} being functions of the times ti.

    摘要翻译: 用于解调用具有过零检测器(1)的数据符号序列(d)进行频率调制的信号的装置,用于产生序列{z < 其中z i是从零交叉t i和i i + 1 i计算的,并且具有单位 (3),用于重建数据符号序列{d> k N},其特征在于序列{z> i i}与辅助序列之间的最小欧几里德距离,其中, 辅助序列中的每个序列元素由数据符号序列{d> k N}与与索引k相关的序列{h i,i,k}卷积形成,以及 其中序列{h i,i,k i}是时间t i i i的函数。

    Demodulation of a frequency-modulated received signal by mapping the zero crossings to a sequence of parameter values
    8.
    发明申请
    Demodulation of a frequency-modulated received signal by mapping the zero crossings to a sequence of parameter values 审中-公开
    通过将过零点映射到参数值序列来解调频率调制接收信号

    公开(公告)号:US20060008033A1

    公开(公告)日:2006-01-12

    申请号:US11176459

    申请日:2005-07-07

    IPC分类号: H03D1/00

    CPC分类号: H04L27/1563

    摘要: A detector for zero crossings determines the zero crossings in the received signal or in an intermediate frequency signal which is generated from the received signal. Since, in the case of frequency-modulated signals, the number of zero crossings per symbol interval is naturally not constant, the zero crossing sequence is mapped to a sequence {zi} of parameter values zi which are at equidistant time intervals by means of mathematical, non-linear mapping. Mean value formation of zero crossing intervals or determination of the number of zero crossings can be used for mapping. The sequence of parameter values zi at equidistant time intervals can be supplied to a conventional detection algorithm such as a Viterbi detection algorithm.

    摘要翻译: 用于过零点的检测器确定接收信号中的过零点或从接收信号产生的中频信号。 由于在频率调制信号的情况下,每符号间隔的过零次数自然不是恒定的,所以过零序列被映射到参数值z 的序列。

    Demodulation of a frequency modulated received signal by means of two-stage path selection in a trellis diagram
    9.
    发明申请
    Demodulation of a frequency modulated received signal by means of two-stage path selection in a trellis diagram 审中-公开
    通过网格图中的两级路径选择解调变频接收信号

    公开(公告)号:US20050058226A1

    公开(公告)日:2005-03-17

    申请号:US10938240

    申请日:2004-09-10

    IPC分类号: H04L27/156 H04L27/06

    CPC分类号: H04L27/1563

    摘要: The possible number of zero crossings in the interval [kTb,(k+1)Tb] is determined for each time (k+1)Tb based on hypothetical subsequences, on the basis of a model for frequency modulation, and a trellis diagram is constructed, based on the model. In a first selection step, those paths in the trellis diagram are then excluded whose number of zero crossings in the stated interval does not match the number of detected zero crossings in the received subsequence in this interval. In a second selection step, the path metrics of the paths which still exist are extended by the new branch metrics based on the Viterbi algorithm which is known per se. If two paths meet one another at a node point then only that path which has the lower path metric is continued.

    摘要翻译: 基于假设的子序列,基于频率调制的模型,针对每个时间(k + 1)Tb确定区间[kTb,(k + 1)Tb]中的零交叉的可能数量,并且网格图 基于模型构建。 在第一选择步骤中,然后排除网格图中的那些路径,其中所述间隔中的过零点数与在该间隔中接收的子序列中检测到的过零点的数量不匹配。 在第二选择步骤中,仍然存在的路径的路径度量基于本身已知的维特比算法被新的分支度量扩展。 如果两个路径在节点处彼此相遇,那么只有具有较低路径度量的路径才能继续。

    Method and device for calculating zero-crossing reference sequences for signal detection of angle-modulated signals based on zero crossings of the received signal
    10.
    发明申请
    Method and device for calculating zero-crossing reference sequences for signal detection of angle-modulated signals based on zero crossings of the received signal 有权
    用于计算过零参考序列的方法和装置,用于基于接收信号的过零点的角度调制信号的信号检测

    公开(公告)号:US20060222107A1

    公开(公告)日:2006-10-05

    申请号:US11373463

    申请日:2006-03-10

    IPC分类号: H03D3/00

    CPC分类号: H04L27/2337

    摘要: A method for calculating zero-crossing reference sequences ({ti}) for the data detection of a sequence of zero crossings ({{circumflex over (t)}i}) of a received signal is disclosed. The data detection is determined in a receiver, wherein the received signal is based on a data symbol sequence ({dk}) angle-modulated at a transmitter and transmitted to the receiver. The zero-crossing reference sequences ({ti}) are calculated in accordance with an equation specifying an output of a finite state machine that describes, at least approximately, the signal generation in the transmitter.

    摘要翻译: 一种用于计算接收信号的过零序列((t))的数据检测的过零参考序列({t i i i>})的方法是 披露 在接收机中确定数据检测,其中所接收的信号基于在发射机处角度调制并被发送到接收机的数据符号序列({d> k N}})。 根据规定至少近似地描述发射机中的信号产生的有限状态机的输出的等式来计算过零参考序列({t i i i>})。