公开(公告)号：US08565359B2

公开(公告)日：2013-10-22

申请号：US12301708

申请日：2007-05-18

申请人： Cyril Valadon ,  Martin Leach ,  Mong S. Yee ,  Carlo Pachetti ,  Mark Murphy

发明人： Cyril Valadon ,  Martin Leach ,  Mong S. Yee ,  Carlo Pachetti ,  Mark Murphy

IPC分类号： H04B1/10

CPC分类号： H04L25/0212 ,  H04L25/0228

摘要： A receiver for acquiring a signal through a propagation channel, the receiver comprising channel estimating means (200) for producing stream of CIR estimates for the channel, a plurality of doppler filtering means (201) for filtering the CIR stream in parallel and selecting means (202) for selecting the output of one of the doppler filtering means for use in recovering said signal.

摘要翻译： 一种用于通过传播信道获取信号的接收机，所述接收机包括用于产生所述信道的CIR估计流的信道估计装置（200），用于并行对所述CIR流进行滤波的多个多普勒滤波装置（201） 202），用于选择用于恢复所述信号的多普勒滤波装置之一的输出。

公开(公告)号：US08284874B2

公开(公告)日：2012-10-09

申请号：US12374719

申请日：2007-07-25

申请人： Cyril Valadon ,  Carlo Pachetti

发明人： Cyril Valadon ,  Carlo Pachetti

IPC分类号： H04L27/06

CPC分类号： H04L25/067 ,  H03M13/45 ,  H04B1/707 ,  H04L1/0054 ,  H04L1/1819 ,  H04L1/1845 ,  H04L1/1893

摘要： A method of producing soft decisions for a signal, wherein a model provides an expression for an LLR for the signal, the LLR expression is dependent on noise power in the signal and can be rendered in a form independent of the noise power, wherein the method comprises evaluating the noise power independent expression using values from the signal to produce soft decisions, calculating a weight expressing the noise power affecting a soft decision relative to the noise power affecting at least one other soft decision and applying the weight to its respective soft decision.

摘要翻译： 一种产生信号的软判决的方法，其中模型为信号提供LLR的表达式，LLR表达式取决于信号中的噪声功率，并且可以以与噪声功率无关的形式呈现，其中该方法 使用来自信号的值来评估噪声功率无关表达，以产生软判决，计算表示相对于影响至少一个其他软判决的噪声功率的软判决的噪声功率的权重，并将该权重应用于其相应的软判决。

公开(公告)号：US08270458B2

公开(公告)日：2012-09-18

申请号：US11782242

申请日：2007-07-24

申请人： Cyril Valadon

发明人： Cyril Valadon

IPC分类号： H04B3/46 ,  H04B17/00 ,  H04Q1/20

CPC分类号： H04Q1/46

摘要： Apparatus arranged to analyse a signal comprising a series of symbols, the apparatus comprising means for calculating a metric of said signal, filter means for filtering said signal, means for calculating a metric of said filtered signal and means for comparing said metrics, wherein the filtering means is arranged to track a spectral feature of the signal and maintain that feature within the pass band of the filtering means.

摘要翻译： 用于分析包括一系列符号的信号的装置，所述装置包括用于计算所述信号的度量的装置，用于对所述信号进行滤波的滤波装置，用于计算所述滤波信号的度量的装置和用于比较所述度量的装置，其中滤波 装置被设置为跟踪信号的频谱特征并将该特征保持在滤波装置的通带内。

公开(公告)号：US07974262B2

公开(公告)日：2011-07-05

申请号：US11659600

申请日：2005-08-05

申请人： Navid Fatemi-Ghomi ,  Cyril Valadon

发明人： Navid Fatemi-Ghomi ,  Cyril Valadon

IPC分类号： H04J3/06

CPC分类号： H04L7/0054 ,  H04B7/2681

摘要： A telecommunications network participant, comprising means for digitising, as a series of samples, a received signal containing a succession of symbols, means for measuring time misalignment between the symbols and the samples and means for applying a fractional delay to the positions of the samples to reduce the misalignment.

摘要翻译： 一种电信网络参与者，包括用于数字化作为一系列样本的包含一系列符号的接收信号的装置，用于测量符号和样本之间的时间不对准的装置，以及用于将样本的位置应用分数延迟的装置 减少不对准。

公开(公告)号：US20100008405A1

公开(公告)日：2010-01-14

申请号：US12373984

申请日：2007-07-24

申请人： Cyril Valadon

发明人： Cyril Valadon

IPC分类号： H04B1/00

CPC分类号： H04L25/0224 ,  H04B1/7115 ,  H04B2201/7071 ,  H04L25/03114

摘要： A method of ameliorating channel effects present in a signal received through a channel, wherein the signal conveys at least first and second information streams and the method comprises the steps of determining from the first stream activation of the second stream and processing the signal to ameliorate channel effects, when the second stream is present, in a first manner comprising filtering the signal through filter means to ameliorate channel dispersion and then processing the signal through Rake receiver means or, when the second stream is absent, in a second manner comprising processing the signal through the Rake receiver means without prior amelioration of channel dispersion by the filter means.

摘要翻译： 一种改善存在于通过信道接收的信号中的信道效应的方法，其中所述信号至少传送第一和第二信息流，并且所述方法包括以下步骤：从所述第一流确定所述第二流的激活并处理所述信号以改善信道 当第二流存在时，包括通过滤波器装置对信号进行滤波以改善信道色散，然后通过Rake接收机装置处理该信号，或者当第二个流不存在时，以第二种方式处理该信号 通过耙式接收机装置，无需通过滤波器装置预先改善信道色散。

公开(公告)号：US20090110124A1

公开(公告)日：2009-04-30

申请号：US11660219

申请日：2005-08-05

申请人： Navid Fatemi-Ghomi ,  Cyril Valadon

发明人： Navid Fatemi-Ghomi ,  Cyril Valadon

IPC分类号： H04L27/06

CPC分类号： H04L1/0059 ,  H03M13/3955 ,  H03M13/4138 ,  H04L1/0054

摘要： A Viterbi trellis processing technique in which soft decisions and hard decisions are derived from a received signal and the soft decisions are enhanced by being modified using the hard decisions. A log likelihood ratio for a bit of the received signal can be derived by grouping candidate metrics associated with the decision that the bit has a first state, grouping candidate metrics associated with the decision that the bit has a second state, applying respective functions to the groups and calculating the difference of the function values.

摘要翻译： 维特比网格处理技术，其中软判决和硬判决从接收到的信号导出，并且通过使用硬判决来修改软判决来增强。 可以通过对与该位具有第一状态的判定相关联的候选度量进行分组来导出接收信号的位的对数似然比，将与该位具有第二状态的判定相关联的候选度量分组，将相应的函数应用于 组和计算功能值的差异。

公开(公告)号：US20080101417A1

公开(公告)日：2008-05-01

申请号：US11662575

申请日：2005-09-09

申请人： James Chapman ,  Martin Leach ,  Cyril Valadon

发明人： James Chapman ,  Martin Leach ,  Cyril Valadon

IPC分类号： H04J1/02

CPC分类号： H04B1/1027 ,  H04B2001/1054

摘要： A signal receiver is arranged to process a portion of a received signal in each of a plurality of filter branches and to determine a quality metric for each branch. The configuration of a second filter for processing the entirety of the received signal is subsequently performed according to the determined quality metrics.

摘要翻译： 信号接收器被布置为处理多个滤波器分支中的每一个中的接收信号的一部分并且确定每个分支的质量度量。 随后根据确定的质量度量执行用于处理所述接收信号的整体的第二滤波器的配置。

公开(公告)号：US20200044786A1

公开(公告)日：2020-02-06

申请号：US16497487

申请日：2018-03-27

申请人： Abdelkader MEDLES ,  Gilles CHARBIT ,  Cyril VALADON ,  Tao CHEN ,  Weidong YANG ,  Arnaud CUPILLARD ,  MediaTek Singapore Pte. Ltd.

发明人： Abdelkader MEDLES ,  Gilles CHARBIT ,  Cyril VALADON ,  Tao CHEN ,  Weidong YANG ,  Arnaud Abel Francois CUPILLARD

IPC分类号： H04L1/18 ,  H04L1/20 ,  H04L5/00 ,  H04L1/16

摘要： Techniques, schemes, designs, systems and methods pertaining to HARQ and ARQ design for URLLC in mobile communications are described. A processor of a first apparatus of a mobile network performs a first transmission to a second apparatus of the mobile network in support of ultra-reliablelow-latency communications (URLLC) with a first amount of redundancy. The processor determines whether a predefined condition is met. Responsive to a determination that the predefined condition is met, the processor performs a second transmission to the second apparatus in support of the URLLC with a second amount of redundancy greater than the first amount of redundancy. The processor also multiplexes URLLC traffic and enhanced Mobile Broadband (eMBB) traffic in transmissions to the second apparatus.

公开(公告)号：US08340204B2

公开(公告)日：2012-12-25

申请号：US11660219

申请日：2005-08-05

申请人： Navid Fatemi-Ghomi ,  Cyril Valadon

发明人： Navid Fatemi-Ghomi ,  Cyril Valadon

IPC分类号： H04L5/12 ,  H04L23/02

CPC分类号： H04L1/0059 ,  H03M13/3955 ,  H03M13/4138 ,  H04L1/0054

摘要： A Viterbi trellis processing technique in which soft decisions and hard decisions are derived from a received signal and the soft decisions are enhanced by being modified using the hard decisions. A log likelihood ratio for a bit of the received signal can be derived by grouping candidate metrics associated with the decision that the bit has a first state, grouping candidate metrics associated with the decision that the bit has a second state, applying respective functions to the groups and calculating the difference of the function values.

摘要翻译： 维特比网格处理技术，其中软判决和硬判决从接收到的信号导出，并且通过使用硬判决来修改软判决来增强。 可以通过对与该位具有第一状态的判定相关联的候选度量进行分组来导出接收信号的位的对数似然比，将与该位具有第二状态的判定相关联的候选度量分组，将相应的函数应用于 组和计算功能值的差异。

公开(公告)号：US20110211661A1

公开(公告)日：2011-09-01

申请号：US13106616

申请日：2011-05-12

申请人： Cyril Valadon

发明人： Cyril Valadon

IPC分类号： H04L27/06

CPC分类号： H04L25/03292 ,  H04L25/03184 ,  H04L25/03235

摘要： A trellis processing technique for estimating a transmitted signal from a received signal acquired through a channel achieves a reduced computational structure when implementing a DDFSE-like branch metrics calculation by pre-storing computed values, which can be re-used. The technique involves storing differences between a received symbol and different products, each of which is a product of a channel coefficient corresponding to a least time delay and a different possible transmitted symbol. A summation of products is calculated, each product being a product of a possible transmitted signal symbol and a channel coefficient other than the channel coefficient corresponding to the least time delay, the summation being specific to a branch-start state in a trellis. The summation is combined with different stored differences in a calculation of branch metrics leading to different branch-end states in the trellis.

摘要翻译： 用于通过信道获取的接收信号估计发射信号的网格处理技术通过预先存储可重新使用的计算值来实现类似DDFSE的分支量度计算，实现了减少的计算结构。 该技术涉及存储接收符号和不同产品之间的差异，每个产品是与最小时间延迟对应的信道系数与不同可能发送符号的乘积。 计算产品的总和，每个产品是可能的传输信号符号的乘积和不同于最小时间延迟的信道系数的通道系数，该总和特定于网格中的分支开始状态。 总和与不同的存储差异结合在分支度量的计算中，导致网格中不同的分支结束状态。