公开(公告)号：US20120192028A1

公开(公告)日：2012-07-26

申请号：US13393022

申请日：2010-08-26

申请人： Steve Allpress ,  Colman Hegarty ,  Carlo Luschi ,  Fabienne Hegarty

发明人： Steve Allpress ,  Colman Hegarty ,  Carlo Luschi ,  Fabienne Hegarty

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H04L1/005 ,  G06F11/10 ,  H03M13/05 ,  H03M13/2957 ,  H03M13/3723 ,  H03M13/3905 ,  H03M13/3972 ,  H03M13/6362 ,  H03M13/653 ,  H04L1/0055 ,  H04L1/0066 ,  H04L1/0068

摘要： A method, apparatus and program. The method comprises: receiving a signal comprising a sequence of encoded symbols, each corresponding to one of a plurality of possible states; for each symbol in the sequence, determining a set of state metrics each representing a probability that the respective symbol corresponds to each of the plurality of states; and decoding the signal by processing runs of recursions, using runs of forward recursions and runs of reverse recursions. The decoding comprises performing a plurality of repeated iterations over the sequence, and for each iteration: dividing the sequence into a plurality of smaller windows, processing the windows using separate runs of recursions, and performing an associated warm-up run of recursions for each window. The decoding further comprises, for each repeated recursion: alternating the direction of the warm-up runs between forward and reverse with each successive iteration over the sequence, storing one of the sets of state metrics from each window, and initialising the warm-up run of each window using a corresponding stored set of state metrics from a previous iteration.

摘要翻译： 方法，装置和程序。 该方法包括：接收包括编码符号序列的信号，每个对应于多个可能状态之一; 对于序列中的每个符号，确定一组状态度量，每个状态度量表示各个符号对应于多个状态中的每一个的概率; 并通过处理递归运算来解码信号，使用正向递归运行和反向递归运行。 解码包括在序列上执行多次重复迭代，并且对于每次迭代，将该序列划分成多个较小的窗口，使用单独的递归运算来处理窗口，并且对每个窗口执行相关的预热运行递归运算 。 对于每个重复的递归，解码还包括：在序列之间的每个连续迭代中交替在正向和反向之间的预热运行的方向，存储来自每个窗口的状态度量集合中的一个，并且初始化预热运行 使用来自先前迭代的相应的存储的状态度量集合。

公开(公告)号：US08793561B2

公开(公告)日：2014-07-29

申请号：US13393022

申请日：2010-08-26

申请人： Steve Allpress ,  Carlo Luschi ,  Fabienne Hegarty

发明人： Steve Allpress ,  Colman Hegarty ,  Carlo Luschi

IPC分类号： H03M13/00 ,  H04L1/00 ,  H03M13/05 ,  H03M13/29 ,  H03M13/37 ,  H03M13/39 ,  G06F11/10

CPC分类号： H04L1/005 ,  G06F11/10 ,  H03M13/05 ,  H03M13/2957 ,  H03M13/3723 ,  H03M13/3905 ,  H03M13/3972 ,  H03M13/6362 ,  H03M13/653 ,  H04L1/0055 ,  H04L1/0066 ,  H04L1/0068

摘要： One aspect provides a method. The method comprises receiving a signal comprising a sequence of encoded symbols, each corresponding to one of a plurality of possible states. For each symbol in the sequence, the method further comprises determining a set of state metrics, each representing a probability that the respective symbol corresponds to the plurality of states. The method further comprises decoding the signal by processing runs of recursions using runs of forward recursions, whereby a later state metric in the sequence is updated based on a preceding state metric, and runs of recursions using runs of reverse recursions, whereby a preceding state metric in the sequence is updated based on a later state metric. The method further comprises outputting the decoded signal to a device. The decoding comprises performing a plurality of repeated iterations over the sequence.

摘要翻译： 一方面提供了一种方法。 该方法包括接收包括编码符号序列的信号，每一个对应于多个可能状态之一。 对于序列中的每个符号，该方法还包括确定一组状态度量，每一个表示各个符号对应于多个状态的概率。 该方法还包括使用正向递归运算来处理递归运算来对信号进行解码，由此基于先前状态度量来更新序列中的后续状态度量，并且使用反向递归运算来运行递归，由此前一状态度量 在该序列中基于稍后的状态度量来更新该序列。 该方法还包括将解码的信号输出到设备。 解码包括在序列上执行多次重复迭代。

公开(公告)号：US08824537B2

公开(公告)日：2014-09-02

申请号：US13574995

申请日：2011-01-27

申请人： Steve Allpress ,  Carlo Luschi ,  Simon Nicholas Walker

发明人： Steve Allpress ,  Carlo Luschi ,  Simon Nicholas Walker

IPC分类号： H03H7/30 ,  H04L25/03 ,  H04L25/02

CPC分类号： H04L25/022 ,  H04L25/03012 ,  H04L25/03044 ,  H04L25/03159 ,  H04L2025/03426

摘要： A method, receiver and program for equalizing digital samples of a radio signal received over a wireless communications channel. The method comprises: receiving digital samples of the radio signal; calculating equalizer coefficients in the frequency domain; transforming the equalizer coefficients from the frequency domain to the time domain; and equalizing the digital samples in the time domain using the transformed time domain equalizer coefficients.

摘要翻译： 一种用于均衡通过无线通信信道接收的无线电信号的数字样本的方法，接收机和程序。 该方法包括：接收无线电信号的数字样本; 计算频域中的均衡器系数; 将均衡器系数从频域变换到时域; 并使用变换的时域均衡器系数来均衡时域中的数字样本。

公开(公告)号：US08126451B2

公开(公告)日：2012-02-28

申请号：US12016663

申请日：2008-01-18

申请人： Carlo Luschi ,  Steve Allpress ,  Philip Jones

发明人： Carlo Luschi ,  Steve Allpress ,  Philip Jones

IPC分类号： H04W4/00

CPC分类号： H04B17/345 ,  H04B1/7115 ,  H04B17/27 ,  H04B17/318 ,  H04B17/336 ,  H04L25/0212 ,  H04L25/0224 ,  H04L25/03019

摘要： Methods are described of processing signals received over a wireless communication channel by a receiver in a wireless cellular network. A method includes receiving a sequence of signal samples. The received sequence of samples can be used to estimate at least one channel coefficient for at least one transmission path. An estimate of an orthogonality factor can be generated based on said at least one channel coefficient. An estimate of the disturbance can be generated based on said at least one estimated channel coefficient. An estimate of input signal power can be generated using the received sequence. An estimate of cell geometry can be generated using the estimated orthogonality factor, estimated disturbance, and estimated input signal power. The estimate of cell geometry can be used in processing received data samples. Related methods of processing digital samples are described. Related receivers are also described.

摘要翻译： 描述了处理由无线蜂窝网络中的接收机在无线通信信道上接收的信号的方法。 一种方法包括接收信号样本序列。 所接收的样本序列可以用于估计至少一个传输路径的至少一个信道系数。 可以基于所述至少一个信道系数来生成正交因子的估计。 可以基于所述至少一个估计的信道系数来产生扰动的估计。 可以使用接收到的序列来生成输入信号功率的估计。 可以使用估计的正交因子，估计的干扰和估计的输入信号功率来生成小区几何的估计。 单元几何的估计可用于处理接收的数据样本。 描述处理数字样本的相关方法。 还描述了相关接收机。

公开(公告)号：US09729224B2

公开(公告)日：2017-08-08

申请号：US12016688

申请日：2008-01-18

申请人： Carlo Luschi ,  Simon Huckett ,  Steve Allpress ,  Philip Jones

发明人： Carlo Luschi ,  Simon Huckett ,  Steve Allpress ,  Philip Jones

IPC分类号： H04B7/04 ,  H04B7/08 ,  H04B7/02

CPC分类号： H04B7/0874 ,  H04B7/02 ,  H04B7/04

摘要： Wireless receivers are described for receiving signals from a transmitter. A receiver can include a plurality of antennas each for receiving a version of a signal via a different propagation channel and providing that version to a respective input. Signal processing means can be included and configured to operate diversity processing of a supplied number of said inputs for use in performing detection of said signal. The receiver can include channel parameter estimation means, configured to estimate one or more channel parameters on the propagation channels. The receiver can also include selection means configured to select only a subset of said inputs to implement a specific dimensionality of the receiver diversity processing, in dependence on the one or more channel parameters indicative of channel conditions on said propagation channels. The diversity processing can be linear or non-linear. Related methods and software implementations and computer program products are also described.

公开(公告)号：US09479215B2

公开(公告)日：2016-10-25

申请号：US12016652

申请日：2008-01-18

申请人： Carlo Luschi ,  Simon Walker ,  Steve Allpress ,  Philip Jones

发明人： Carlo Luschi ,  Simon Walker ,  Steve Allpress ,  Philip Jones

IPC分类号： H04B1/707 ,  H04L25/02 ,  H04L25/03

CPC分类号： H04B1/707 ,  H04B2201/7071 ,  H04L25/0212 ,  H04L25/03012

摘要： A method of processing digital samples of a signal received at a receiver of a wireless communication system includes monitoring channel conditions and generating a channel indicator including at least one channel parameter by performing at least one of: estimating a channel mobility parameter and comparing it with a threshold; estimating a channel parameter of the energy of the channel outside a predefined temporal window, and comparing it with a threshold; estimating a channel temporal duration parameter and establishing if it meets predetermined criteria; estimating a channel-zero location parameter and establishing if it meets predetermined criteria; estimating a received-signal signal-to-disturbance power ratio, and comparing it to a threshold; estimating an estimated-channel-response signal-to-disturbance power ratio; estimating the degree of non-stationarity of the disturbance at the receiver input; and selecting one of a plurality of processing routines for processing the digital samples based on said channel indicator. Related receivers are also described.

摘要翻译： 一种处理在无线通信系统的接收机处接收的信号的数字样本的方法包括监视信道状况并通过执行以下中的至少一个来生成包括至少一个信道参数的信道指示符：估计信道移动性参数并将其与 阈; 估计在预定时间窗口之外的信道的能量的信道参数，并将其与阈值进行比较; 估计信道时间持续时间参数并确定它是否符合预定标准; 估计信道零位置参数并确定它是否符合预定标准; 估计接收信号信号与干扰功率比，并将其与阈值进行比较; 估计信道响应信号与干扰功率比; 估计接收机输入干扰的非平稳度; 以及基于所述信道指示符选择用于处理数字样本的多个处理例程之一。 还描述了相关接收机。

公开(公告)号：US08682272B2

公开(公告)日：2014-03-25

申请号：US12016681

申请日：2008-01-18

申请人： Carlo Luschi ,  Steve Allpress

发明人： Carlo Luschi ,  Steve Allpress

IPC分类号： H04B1/06

CPC分类号： H04B1/7115 ,  H04B1/0003

摘要： Methods are described of processing a signal transmitted over a channel in a wireless communication system. A method includes estimating at intervals at least one parameter of a time varying communication environment of said system. At least one processor-related signal processing criterion can be monitored for implementing a signal processing activity. Based on said at least one parameter and said at least one processor-related criterion, a signal processing function can be selected from a plurality of signal processing functions implementable by a processor. Each signal processing function includes a plurality of code blocks having a sequence of instructions for execution on a processor platform, the processor platform including a set of configurable operators having a plurality of predetermined configurations, each sequence of instructions including at least one configuration instruction, which selects one of the plurality of predefined configurations for executing that code block. Related receivers and software implementations are described.

摘要翻译： 描述了处理在无线通信系统中通过信道发送的信号的方法。 一种方法包括间隔地估计所述系统的时变通信环境的至少一个参数。 可以监视至少一个处理器相关的信号处理标准以实现信号处理活动。 基于所述至少一个参数和所述至少一个处理器相关标准，可以从可由处理器实现的多个信号处理功能中选择信号处理功能。 每个信号处理功能包括具有用于在处理器平台上执行的指令序列的多个代码块，所述处理器平台包括具有多个预定配置的一组可配置运算符，每个指令序列包括至少一个配置指令， 选择多个预定义配置中的一个来执行该代码块。 描述相关的接收器和软件实现。

公开(公告)号：US08189653B2

公开(公告)日：2012-05-29

申请号：US12016640

申请日：2008-01-18

申请人： Carlo Luschi ,  Simon Huckett ,  Simon Walker ,  Steve Allpress ,  Philip Jones

发明人： Carlo Luschi ,  Simon Huckett ,  Simon Walker ,  Steve Allpress ,  Philip Jones

IPC分类号： H03H7/30

CPC分类号： H04L25/03114 ,  H04B2201/7071 ,  H04L25/0212 ,  H04L2025/03566 ,  H04L2025/03726

摘要： Techniques are described for optimizing processing facilities of a receiver in a wireless communication environment, taking into consideration processing performance set against the computing resources and/or power consumption required to obtain the processing performance. An embodiment of a radio receiver is described that includes a channel equalization means arranged to receive digital samples of an incoming signal and to generate an equalized output, said channel equalization means including means for processing said digital samples in accordance with an equalizer algorithm utilizing a set of equalizer parameters. The receiver can include means for estimating at least one parameter of a channel over which the signal has been received, and means for selecting at least one of said equalizer parameters based on at least one of said estimated channel parameters. Related methods, algorithms, and computer program products are also described.

摘要翻译： 描述了在无线通信环境中优化接收机的处理设施的技术，考虑到针对获得处理性能所需的计算资源和/或功耗设置的处理性能。 描述了一种无线电接收机的实施例，其包括信道均衡装置，其被配置为接收输入信号的数字样本并产生均衡的输出，所述信道均衡装置包括用于根据利用集合的均衡器算法处理所述数字样本的装置 均衡器参数。 接收机可以包括用于估计已经在其上接收信号的信道的至少一个参数的装置，以及用于基于所述估计的信道参数中的至少一个来选择所述均衡器参数中的至少一个的装置。 还描述了相关方法，算法和计算机程序产品。

公开(公告)号：US20110142144A1

公开(公告)日：2011-06-16

申请号：US13057780

申请日：2009-04-15

申请人： Steve Allpress ,  Carlo Luschi ,  Tarik Tabet

发明人： Steve Allpress ,  Carlo Luschi ,  Tarik Tabet

IPC分类号： H04L27/00

CPC分类号： H04L1/0026 ,  H04B7/0413 ,  H04B7/0623 ,  H04B7/063 ,  H04B7/0632 ,  H04L1/06 ,  H04L1/16

摘要： The invention relates to a method of feeding back information from a receiver to a transmitter, and also a corresponding receiver, transmitter, system comprising a receiver and transmitter, and computer program products for performing the steps of the receiver and transmitter respectively. The method comprises: receiving signals at the receiver from the transmitter over a wireless multiple-input-multiple-output channel; and, based on the received signals, transmitting back reports from the receiver to the transmitter including a report indicating a pre-coding matrix and a report indicating a rank of the pre-coding matrix. In the event that the report indicating the rank is not transmitted, the receiver instead uses a default rank to determine the report.

摘要翻译： 本发明涉及一种将信息从接收机反馈到发射机的方法，以及包括接收机和发射机的相应的接收机，发射机，系统以及用于分别执行接收机和发射机的步骤的计算机程序产品的方法。 该方法包括：通过无线多输入多输出信道从发射机在接收机处接收信号; 并且基于所接收的信号，从接收机向发送机发回报告，包括指示预编码矩阵的报告和指示预编码矩阵的等级的报告。 如果没有发送指示排名的报告，则接收方使用默认排名来确定报告。

公开(公告)号：US20090113429A1

公开(公告)日：2009-04-30

申请号：US12016671

申请日：2008-01-18

申请人： Carlo Luschi ,  Steve Allpress ,  Simon Huckett

发明人： Carlo Luschi ,  Steve Allpress ,  Simon Huckett

IPC分类号： G06F9/46

CPC分类号： H04B1/0003 ,  H04B2201/709727

摘要： Systems are described that reduce or obviate the impact of limited processing resources and/or limit the power consumption in a receiver having signal processing functions at least partially implemented in software. A wireless receiver includes reception means for receiving a signal over a wireless channel in a wireless external environment. The receiver includes storage means, and a processor configured to perform a plurality of signal processing functions for extracting processed data from said signal, each of said signal processing functions having a plurality of alternative software implementations requiring different levels of usage of a processing resource. The processor estimates at least one parameter relating to the external environment and selects and executes one of the software alternatives for each of the respective signal processing functions to apply a set of implementations adapted to a required quality of said processed data. Related methods and computer program products are described.

摘要翻译： 描述了减少或消除有限的处理资源的影响和/或限制具有至少部分地以软件实现的信号处理功能的接收机中的功耗的系统。 无线接收机包括用于在无线外部环境中通过无线信道接收信号的接收装置。 接收机包括存储装置，以及被配置为执行多个信号处理功能的处理器，用于从所述信号中提取处理的数据，所述信号处理功能中的每一个具有需要处理资源的不同使用级别的多个替代软件实现。 处理器估计与外部环境有关的至少一个参数，并且为每个相应的信号处理功能选择并执行其中一个软件替代方案，以应用适合所述处理数据的所需质量的一组实现。 描述相关方法和计算机程序产品。