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公开(公告)号：US09369310B2
公开(公告)日：2016-06-14
申请号：US13350259
申请日：2012-01-13
申请人： Stephen Allpress , Edward Andrews , Simon Huckett , Laolu Lijofi , Jonathan Peter Lucas , Carlo Luschi , Simon Nicholas Walker
发明人： Stephen Allpress , Edward Andrews , Simon Huckett , Laolu Lijofi , Jonathan Peter Lucas , Carlo Luschi , Simon Nicholas Walker
CPC分类号： H04L25/0212 , H04L25/03019
摘要： An apparatus, method and program for processing a signal received over a wireless channel. The apparatus comprises: a channel searcher configured to determine a profile of the channel in the form of energy values for a plurality of rays at respective channel positions, and an equalizer for equalizing the signal based on a variable window of the equalizer. The channel searcher is configured to estimate dispersion of the channel by determining a measure of variance of ray distance from a reference position within the channel profile weighted by ray energy. The equalizer is coupled to the channel searcher and arranged to adapt the window in dependence on the measure of energy-weighted ray distance variance.
摘要翻译： 一种用于处理通过无线信道接收的信号的装置，方法和程序。 该装置包括：信道搜索器，被配置为以各个信道位置处的多个光线的能量值的形式确定信道的分布;以及均衡器，用于基于均衡器的可变窗口对信号进行均衡。 信道搜索器被配置为通过确定由由射线能量加权的信道简档内的参考位置的射线距离的方差的度量来估计信道的色散。 均衡器耦合到信道搜索器并且被布置成依赖于能量加权的射线距离方差的测量来适应窗口。
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公开(公告)号：US09184946B2
公开(公告)日：2015-11-10
申请号：US13575576
申请日：2011-01-27
CPC分类号： H04L25/03044 , H04L25/03159
摘要： A method, receiver and program for equalising a radio signal comprising a sequence of data samples multiplexed with a sequence of pilot samples. The method comprises; calculating equaliser coefficients by computing cross-correlations of the received signal and known pilot samples available at the receiver and auto-correlations of the received signal; and equalising the received signal using the calculated coefficients.
摘要翻译： 一种用于均衡无线电信号的方法，接收机和程序，其包括与导频样本序列多路复用的数据样本序列。 该方法包括： 通过计算接收信号和接收机可用的已知导频样本的相关性来计算均衡器系数，并且接收信号的自相关; 并且使用所计算的系数来均衡所接收的信号。
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公开(公告)号：US09184785B2
公开(公告)日：2015-11-10
申请号：US13575005
申请日：2011-01-27
CPC分类号： H04B1/707 , H04B2201/70702 , H04B2201/7071 , H04J11/005 , H04L2025/03726
摘要： A method, receiver and program for processing a signal received using a wireless communication channel by a receiver in a wireless cellular network. The method comprises: receiving signal samples of a signal to be processed from a serving cell; identifying a set of dominant interfering cells generating an interfering signal above a level; using the number of cells in the set to select an interference scenario; and using the selected interference scenario and at least one parameter related to the serving cell and the interfering cells to select a processing function for processing the signal.
摘要翻译： 一种用于处理由无线蜂窝网络中的接收机使用无线通信信道接收的信号的方法，接收机和程序。 该方法包括：从服务小区接收待处理信号的信号样本; 识别在一个电平以上产生干扰信号的一组主导干扰小区; 使用集合中的小区数来选择干扰场景; 以及使用所选择的干扰场景和与所述服务小区和所述干扰小区相关的至少一个参数来选择用于处理所述信号的处理功能。
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4.发明申请WI-FI TRANSCEIVER HAVING DUAL-BAND VIRTUAL CONCURRENT CONNECTION MODE AND METHOD OF OPERATION THEREOF 有权具有双线虚拟并联连接模式的WI-FI收发器及其操作方法公开(公告)号：US20150180530A1
公开(公告)日：2015-06-25
申请号：US14134268
申请日：2013-12-19
申请人： ICERA, Inc.
CPC分类号： H04B1/401 , H04B1/005 , H04B1/405 , H04B7/0413 , H04W88/06
摘要： A transceiver, a method of providing multiple-band virtual concurrent wireless communication and a wireless device incorporating the transceiver or the method. In one embodiment, the transceiver includes: (1) first transmit and receive intermediate frequency (IF) strips, (2) second transmit and receive IF strips, (3) first and second local oscillators (LOs) and (4) switches operable to multiplex clock signals from the first and second local oscillators to cause the transceiver to operate in a selectable one of: (4a) a unified, multiple-input, multiple-output (MIMO) mode in which the first and second transmit and receive IF strips are driven to transmit and receive in a first band and (4b) a concurrent multiple-band connection mode in which the first transmit and receive IF strips are driven in the first band and the second transmit and receive IF strips are concurrently driven in a second band.
摘要翻译： 收发机，提供多频带虚拟并发无线通信的方法和结合收发机或方法的无线设备。 在一个实施例中，收发器包括：（1）第一发送和接收中频（IF）条，（2）第二发送和接收IF条，（3）第一和第二本地振荡器（LO）和（4）可操作以 复用来自第一和第二本地振荡器的时钟信号以使收发器以可选择的方式工作：（4a）统一的多输入多输出（MIMO）模式，其中第一和第二发射和接收IF带 被驱动以在第一频带中发送和接收，并且（4b）并行多频带连接模式，其中第一发射和接收IF频带在第一频带中被驱动，并且第二发射和接收IF频带在第二频带中同时被驱动 带。
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公开(公告)号：US08767668B2
公开(公告)日：2014-07-01
申请号：US12739587
申请日：2008-09-18
申请人： Carlo Luschi , Tarik Tabet
发明人： Carlo Luschi , Tarik Tabet
CPC分类号： H04L1/0026 , H04L1/0003 , H04L1/0013 , H04L1/0029 , H04L1/20
摘要： A method and corresponding receiver for transmitting channel quality data for a channel in a wireless communication system are provided. The method comprises determining channel quality metrics for frequency intervals within the channel, selecting groups of frequency intervals based on the determined metrics, and transmitting one or more channel quality indicators for the groups. The invention also provides a method of transmitting over a channel based on such channel quality indicators feedback from a receiver, and a corresponding transmitter.
摘要翻译： 提供一种用于在无线通信系统中发送信道的信道质量数据的方法和相应的接收机。 该方法包括确定信道内的频率间隔的信道质量度量，基于确定的度量来选择频率间隔组，以及发送用于组的一个或多个信道质量指示符。 本发明还提供了一种基于来自接收器和对应发射机的信道质量指示符反馈的信道在信道上进行发送的方法。
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公开(公告)号：US08737292B2
公开(公告)日：2014-05-27
申请号：US12741796
申请日：2008-10-24
CPC分类号： H04B7/2125 , H04B1/709 , H04J3/0685 , H04L27/0014 , H04L2027/0028 , H04L2027/0048 , H04L2027/0065 , H04L2027/0087 , H04W56/00
摘要： The present invention provides a method of estimating a frequency offset. The method comprises receiving a wireless signal timed according to a first frequency; generating a local signal timed according to a second frequency; and performing a plurality of synchronization searches, each search comprising obtaining a set of correlation results indicative of a correlation between the wireless signal and the local signal at different timing offsets of the wireless signal relative to the local signal. The method the no comprises finding a series of results, with a result from each of a plurality of the synchronization searches, for which the difference in; timing offset between results from adjacent searches in the series is within a maximum specified value. A frequency off set between the first and second frequencies can be determined from the series.
摘要翻译： 本发明提供一种估计频偏的方法。 该方法包括接收根据第一频率定时的无线信号; 产生根据第二频率定时的本地信号; 并且执行多个同步搜索，每个搜索包括获得一组指示无线信号与本地信号之间的相关性的相关结果的集合，该无线信号与本地信号相对于本地信号的不同定时偏移。 该方法no包括找到一系列结果，结果来自多个同步搜索中的每一个，其中的差异; 序列中相邻搜索结果之间的时间偏移在最大规定值内。 可以从该系列中确定在第一和第二频率之间设定的频率。
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公开(公告)号：US08669754B2
公开(公告)日：2014-03-11
申请号：US13081239
申请日：2011-04-06
IPC分类号： G05F3/16
CPC分类号： H04B15/06
摘要： A power supply noise rejection circuit for functional circuits, such as a voltage controlled oscillator (VCO). The power supply noise rejection circuit includes an isolation transistor connected to a voltage supply for providing an output current and voltage substantially free of noise across the full frequency range. A current source, a diode connected reference transistor with resistance means connected between its gate and drain terminals, and a dummy circuit serially connected between the voltage supply and ground generate a bias voltage that is applied to the gate of the isolation transistor. The dummy circuit mimics the DC characteristics of the functional circuit such that the output current tracks with process and temperature variations. The isolation transistor and the reference transistor can have negative threshold voltages, and the circuit can include bleed means for drawing current from the gate of the reference transistor and isolation transistor.
摘要翻译： 用于诸如压控振荡器（VCO）的功能电路的电源噪声抑制电路。 电源噪声抑制电路包括连接到电压源的隔离晶体管，用于在整个频率范围内提供基本上没有噪声的输出电流和电压。 电流源，二极管连接的参考晶体管，其电阻装置连接在其栅极和漏极端子之间，并且串联连接在电压源和地之间的虚拟电路产生施加到隔离晶体管的栅极的偏置电压。 虚拟电路模拟功能电路的DC特性，使得输出电流跟踪过程和温度变化。 隔离晶体管和参考晶体管可以具有负阈值电压，并且该电路可以包括用于从参考晶体管和隔离晶体管的栅极引出电流的放电装置。
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公开(公告)号：US08654913B2
公开(公告)日：2014-02-18
申请号：US12935849
申请日：2009-03-26
申请人： Simon Huckett , Phil Jones , Carlo Luschi
发明人： Simon Huckett , Phil Jones , Carlo Luschi
IPC分类号： H04B1/10
CPC分类号： H04L25/0216 , H04L25/0314 , H04L2025/03585
摘要： A method and apparatus for processing a signal in a wireless communication system. The method comprises: receiving a signal at a receiver over a wireless channel; sampling the signal to produce a plurality of signal samples; and supplying the samples to an equaliser implemented in software running on a processor of the receiver, the equaliser being configured to process the samples using at least one equaliser time period having a nominal length. The method further comprises dynamically determining one or more characteristics of the channel; in dependence on the determined channel characteristics, dynamically selecting between a first operational state of the equaliser in which the nominal length is used and a second operational state of the equaliser in which an alternative length is used in place of the nominal length; and processing the samples in the equaliser using the determined equaliser time period length.
摘要翻译： 一种在无线通信系统中处理信号的方法和装置。 该方法包括：通过无线信道在接收机处接收信号; 对信号进行采样以产生多个信号采样; 以及将所述样本提供给在所述接收机的处理器上运行的软件中实现的均衡器，所述均衡器被配置为使用具有标称长度的至少一个均衡器时间段来处理所述样本。 该方法还包括动态地确定信道的一个或多个特性; 根据所确定的信道特性，在使用标称长度的均衡器的第一操作状态和使用替换长度代替标称长度的均衡器的第二操作状态之间动态选择; 以及使用所确定的均衡器时间段长度来处理均衡器中的样本。
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公开(公告)号：US08588323B2
公开(公告)日：2013-11-19
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
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。
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公开(公告)号：US08582703B2
公开(公告)日：2013-11-12
申请号：US13260705
申请日：2010-03-25
IPC分类号： H03D1/04
CPC分类号： H04W52/248 , H04B17/327 , H04B17/345 , H04W52/225 , H04W52/241 , H04W52/243
摘要： Wireless receiver and method of operating a wireless receiver in a wireless communication network for: receiving a signal, the received signal comprising data containing at least one symbol from a symbol alphabet, the symbol alphabet consisting of complex values that define a direction in the complex plane, the received signal further comprising interference; measuring the variance of a first component of the received signal that is perpendicular to the defined direction in the complex plane; estimating the interference power of the received signal using the measured variance of the first component of the received signal; estimating a total power of the received signal; estimating the power of the at least one symbol of the received signal by subtracting the estimated interference power from the estimated total power of the received signal; and based on the estimated interference power and the estimated power of the at least one symbol of the received signal, performing at least one of the steps of: processing the received signal, and generating control information related to the transmission of a further signal from the wireless receiver.
摘要翻译： 在无线通信网络中操作无线接收机的无线接收机和方法，用于：接收信号，所述接收信号包括从符号字母表中包含至少一个符号的数据，所述符号字母表由复数值组成，所述复数值定义复平面中的方向 所接收的信号还包括干扰; 测量在复平面中垂直于限定方向的接收信号的第一分量的方差; 使用接收信号的第一分量的测量方差来估计接收信号的干扰功率; 估计接收信号的总功率; 通过从所估计的接收信号的总功率中减去所估计的干扰功率来估计接收信号的至少一个符号的功率; 并且基于估计的干扰功率和接收信号的至少一个符号的估计功率，执行以下步骤中的至少一个：处理所接收的信号，以及产生与来自所述接收信号的另一信号的传输相关的控制信息 无线接收器。
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