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51.发明申请Method and Apparatus for Efficient Estimation of Interference in a Wireless Receiver 有权无线接收机干扰有效估计的方法和装置公开(公告)号：US20090304132A1
公开(公告)日：2009-12-10
申请号：US12133636
申请日：2008-06-05
申请人： Douglas A. Cairns , Gregory E. Bottomley , Andreas Cedergren , Tracy L. Fulghum , Elias Jonsson
发明人： Douglas A. Cairns , Gregory E. Bottomley , Andreas Cedergren , Tracy L. Fulghum , Elias Jonsson
IPC分类号： H04B7/10
CPC分类号： H04B1/7117 , H04B1/712
摘要： Methods and apparatus for determining an impairment covariance matrix for use in an interference-suppressing CDMA receiver are disclosed. In several of the disclosed embodiments, precise information regarding signal propagation delays is not needed. An exemplary method includes the selection of a plurality of processing delays for processing a received CDMA signal. Net channel coefficients for the processing delays are estimated and used to calculate an impairment covariance matrix. The impairment covariance matrix is calculated as a function of the estimated net channel coefficients and the processing delays, without estimating a propagation medium channel response for the received signal.
摘要翻译： 公开了用于确定用于干扰抑制CDMA接收机的损害协方差矩阵的方法和装置。 在所公开的几个实施例中，不需要关于信号传播延迟的精确信息。 一种示例性方法包括选择用于处理所接收的CDMA信号的多个处理延迟。 用于处理延迟的净通道系数被估计并用于计算损害协方差矩阵。 损伤协方差矩阵作为估计的净通道系数和处理延迟的函数计算，而不估计接收信号的传播介质通道响应。
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52.发明申请Method and apparatus for interference estimation in a Generalized Rake receiver 有权广义耙式接收机中干扰估计的方法和装置公开(公告)号：US20080002759A1
公开(公告)日：2008-01-03
申请号：US11479483
申请日：2006-06-30
CPC分类号： H04B1/712 , H04B2201/709727
摘要： According to one embodiment taught herein, a method of determining impairment correlations between a plurality of delays of interest for a received CDMA signal comprises generating kernel functions as samples of a net channel response of the received CDMA signal taken at defined chip sampling phases for delay differences between the plurality of delays of interest. In a parametric Generalized Rake (G-Rake) receiver embodiment, the delays of interest represent the delay positions of the fingers being used to characterized received signal. In a chip equalizer receiver embodiment, the delays of interest represent the delay positions of the equalizer taps. The method continues with determining impairment correlations based on convolving the kernel functions. Corresponding receiver circuits, including an impairment correlation estimation circuit configured for parametric G-Rake operation, may be implemented in a variety of communication devices and systems, such as in wireless communication network base stations and mobile stations.
摘要翻译： 根据本文教导的一个实施例，确定接收的CDMA信号的多个感兴趣延迟之间的损害相关性的方法包括：生成内核函数，作为在限定的码片采样相位处采用的接收CDMA信号的净信道响应的样本，用于延迟差 在多个感兴趣的延迟之间。 在参数广义耙（G-Rake）接收机实施例中，感兴趣的延迟表示用于指定的接收信号的手指的延迟位置。 在码片均衡器接收器实施例中，感兴趣的延迟表示均衡器抽头的延迟位置。 该方法继续确定基于卷积核函数的损害相关性。 包括配置用于参数G-Rake操作的损害相关估计电路的对应的接收器电路可以在诸如无线通信网络基站和移动站中的各种通信设备和系统中实现。
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53.发明授权Signal processor for estimating signal parameters using an approximated inverse matrix 有权用于使用近似逆矩阵估计信号参数的信号处理器公开(公告)号：US08045645B2
公开(公告)日：2011-10-25
申请号：US11969692
申请日：2008-01-04
申请人： Gregory E. Bottomley
发明人： Gregory E. Bottomley
CPC分类号： H04B7/0854 , H04B1/71052 , H04B1/712 , H04B2201/709727 , H04L25/0204 , H04L25/0212 , H04L25/0244
摘要： A device that estimates information from a signal includes a receiver for receiving an input signal and electronic processing circuitry. The electronic processing circuitry generates a matrix associated with the input signal and determines an approximation of an inverse of the matrix based on the adjoint of the matrix and a scaling factor associated with the determinant of the matrix. This approximation avoids possible mathematical difficulties that may be encountered in certain situations when a typical matrix inversion is calculated. The approximated inverse matrix is applied to the input signal to transform the input signal into an output signal. Information associated with the input signal is then determined based on the output signal.
摘要翻译： 从信号估计信息的装置包括用于接收输入信号的接收器和电子处理电路。 电子处理电路产生与输入信号相关联的矩阵，并且基于矩阵的伴随和与矩阵的行列式相关联的缩放因子来确定矩阵的逆的近似。 这种近似避免了在计算典型矩阵反演时在某些情况下可能遇到的可能的数学困难。 将近似的逆矩阵施加到输入信号以将输入信号变换为输出信号。 然后基于输出信号确定与输入信号相关联的信息。
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公开(公告)号：US20110075769A1
公开(公告)日：2011-03-31
申请号：US12572703
申请日：2009-10-02
申请人： Gregory E. Bottomley
发明人： Gregory E. Bottomley
IPC分类号： H03D1/00
CPC分类号： H04L25/03318 , H04L25/03184 , H04L25/0321 , H04L25/03229 , H04L25/03331 , H04L25/067 , H04L2025/03401 , H04L2025/03414 , H04L2025/03426
摘要： Teachings presented herein offer reduced and stable computational complexity for symbol block detection using multi-stage assistance, and also provide for the generation of soft bit values. A demodulator generates these soft bit values by forming from a set of candidate symbol combinations, for each group of symbols in a symbol block, a subset of candidate symbol combinations for that group. The demodulator selects from the set the most likely combination, at least one combination that has a complementary bit value for a respective bit value in the most likely combination, and as many of the next most likely combinations not already selected as are needed for the size of the subset to conform to a pre-determined size. The demodulator generates soft bit values by limiting the candidate combinations of symbols considered for a symbol block according to the subsets formed for the groups of symbols in that symbol block.
摘要翻译： 本文提出的教学为使用多级协助的符号块检测提供了降低和稳定的计算复杂度，并且还提供了生成软比特值。 解调器通过从符号块中的每个符号组的一组候选符号组合形成该组的候选符号组合的子集来生成这些软比特值。 解调器从集合中选择最可能的组合，对于最可能的组合中的相应位值具有互补位值的至少一个组合，以及未被选择的许多下一个最可能的组合对于尺寸是必需的 的子集以符合预定的大小。 解调器通过根据为该符号块中的符号组形成的子集限制符号块所考虑的符号的候选组合来产生软比特值。
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公开(公告)号：US07899015B2
公开(公告)日：2011-03-01
申请号：US11681302
申请日：2007-03-02
IPC分类号： H04B7/216
CPC分类号： H04W72/0406 , H04B2201/709727 , H04W4/18 , H04W48/08 , H04W72/082
摘要： Method and apparatuses taught herein enable link adaptation feedback to be determined in advance for future transmit intervals, based on one or more data sending units sending indications of future transmit resource allocations, and receiving corresponding link adaptation feedback from data receiving units. Knowledge of the future transmit resource allocations enable individual data sending units to predict interference conditions for the future transmit interval, and thereby compute link adaptation feedback that takes advantage of low-interference conditions. Individual data sending units receive link adaptation feedback for the future transmit interval from the data receiving units they are supporting, and make corresponding link adaptations for the future transmit interval. Such operations are, in one or more embodiments, carried out in a Wideband Code Division Multiple Access (WCDMA), Long Term Evolution LTE), or WiMAX network, wherein the data sending units comprise radio base stations, and the data receiving units comprise wireless communication devices.
摘要翻译： 基于一个或多个数据发送单元发送未来发送资源分配的指示，以及从数据接收单元接收相应的链路适配反馈，本文教导的方法和装置使能够针对未来的发射间隔预先确定链路自适应反馈。 对未来发送资源分配的了解使各个数据发送单元能够预测未来发射间隔的干扰条件，从而计算利用低干扰条件的链路自适应反馈。 单个数据发送单元从其所支持的数据接收单元接收将来发送间隔的链路自适应反馈，并对未来发送间隔进行相应的链路适配。 在一个或多个实施例中，这样的操作在宽带码分多址（WCDMA），长期演进LTE）或WiMAX网络中进行，其中数据发送单元包括无线电基站，并且数据接收单元包括无线 通讯设备。
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公开(公告)号：US07773557B2
公开(公告)日：2010-08-10
申请号：US11538568
申请日：2006-10-04
CPC分类号： H04W72/1231 , H04B7/0452 , H04B7/0632 , H04B7/0665 , H04B7/0669 , H04W52/287 , H04W52/325 , H04W52/346 , H04W52/42 , H04W72/042
摘要： In a mobile communication system with a shared downlink traffic channel, the mobile terminals in contention for the downlink traffic channel report channel conditions to the base stations. The base station schedules the mobile terminals based on channel quality estimates from the mobile terminals and selects a transmitter configuration. The transmitter configuration may comprise, for example, the antenna configuration, and/or power and code allocations used by the base station. The base station broadcasts the transmitter configuration to all active and inactive mobile terminals. Knowledge of the transmitter configuration by the inactive mobile terminals improves the accuracy and reliability of the channel quality estimates.
摘要翻译： 在具有共享下行链路业务信道的移动通信系统中，对于下行链路业务信道的竞争的移动终端向基站报告信道状况。 基站根据来自移动终端的信道质量估计来调度移动终端，并选择发射机配置。 发射机配置可以包括例如基站使用的天线配置和/或功率和码分配。 基站将发射机配置广播到所有活动和不活动的移动终端。 由非活动移动终端知道发射机配置提高了信道质量估计的准确性和可靠性。
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57.发明授权Apparatus, methods and computer program products for delay selection in a spread-spectrum receiver 有权用于扩频接收机中的延迟选择的装置，方法和计算机程序产品公开(公告)号：US07769078B2
公开(公告)日：2010-08-03
申请号：US10959923
申请日：2004-10-06
IPC分类号： H04B1/00
CPC分类号： H04B1/712 , H04B1/709 , H04B1/7117 , H04B2201/709727
摘要： Channel and correlation characteristics are determined for a composite signal. Respective combining weights for information from the composite signal are determined for respective ones of a plurality of candidate delays based on the determined channel and correlation characteristics. A group of delays, e.g., RAKE correlator delays or chip equalizer filter taps, is selected from the plurality of candidate delays based on the determined weights. Information from the composite signal for the selected delays is processed according to a spreading code to generate a symbol estimate. The invention may be embodied as methods, apparatus and computer program products.
摘要翻译： 为复合信号确定通道和相关特性。 基于确定的信道和相关特性，针对多个候选延迟中的各个确定来自复合信号的信息的相应组合权重。 基于所确定的权重，从多个候选延迟中选择一组延迟，例如RAKE相关器延迟或码片均衡器滤波器抽头。 根据扩展码处理来自所选延迟的复合信号的信息以产生符号估计。 本发明可以体现为方法，装置和计算机程序产品。
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58.发明申请Method and Apparatus for Symbol Detection via Reduced Complexity Sequence Estimation Processing 有权通过减少复杂度序列估计处理进行符号检测的方法和装置公开(公告)号：US20090213908A1
公开(公告)日：2009-08-27
申请号：US12035932
申请日：2008-02-22
申请人： Gregory E. Bottomley
发明人： Gregory E. Bottomley
CPC分类号： H04L25/03292
摘要： Teachings presented herein offer the performance advantages of sequence estimation for received signal symbol detection, while simultaneously providing potentially significant reductions in computational overhead. Initial demodulation of a received signal identifies a reduced number of candidate symbol values for all or a subset of a sequence of symbols represented in a received signal. A sequence estimation process, e.g., an MLSE process, constrains its state spaces to the reduced number of candidate symbols values, rather than considering all possible symbol values.
摘要翻译： 本文提供的教学提供了接收信号符号检测的序列估计的性能优势，同时提供潜在的显着降低计算开销。 接收信号的初始解调识别在接收信号中表示的符号序列的全部或子集的候选符号值的减少数量。 序列估计过程，例如MLSE过程，将其状态空间限制为减少的候选符号值的数量，而不是考虑所有可能的符号值。
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公开(公告)号：US20090010352A1
公开(公告)日：2009-01-08
申请号：US12278186
申请日：2006-02-03
CPC分类号： H04L25/022 , H04L5/0017 , H04L5/0023 , H04L27/2607 , H04L27/265 , H04L27/2653 , H04L27/2662 , H04W16/14
摘要： Method, communication system, receiver, baseband processor and computer program for recovering data from a received OFDM-signal containing recurrent redundant information where part of the recurrent redundant information is used to maximize the SINR (Signal to Interference plus Noise Ratio) of the received OFDM-signal.
摘要翻译： 方法，通信系统，接收机，基带处理器和计算机程序，用于从接收的包含循环冗余信息的OFDM信号中恢复数据，其中部分循环冗余信息用于使接收的OFDM的SINR（信号干扰加噪声比）最大化 -信号。
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公开(公告)号：US20080212539A1
公开(公告)日：2008-09-04
申请号：US11681302
申请日：2007-03-02
IPC分类号： H04B7/216
CPC分类号： H04W72/0406 , H04B2201/709727 , H04W4/18 , H04W48/08 , H04W72/082
摘要： Method and apparatuses taught herein enable link adaptation feedback to be determined in advance for future transmit intervals, based on one or more data sending units sending indications of future transmit resource allocations, and receiving corresponding link adaptation feedback from data receiving units. Knowledge of the future transmit resource allocations enable individual data sending units to predict interference conditions for the future transmit interval, and thereby compute link adaptation feedback that takes advantage of low-interference conditions. Individual data sending units receive link adaptation feedback for the future transmit interval from the data receiving units they are supporting, and make corresponding link adaptations for the future transmit interval. Such operations are, in one or more embodiments, carried out in a Wideband Code Division Multiple Access (WCDMA), Long Term Evolution LTE), or WiMAX network, wherein the data sending units comprise radio base stations, and the data receiving units comprise wireless communication devices.
摘要翻译： 基于一个或多个数据发送单元发送未来发送资源分配的指示，以及从数据接收单元接收相应的链路适配反馈，本文教导的方法和装置使能够针对未来的发射间隔预先确定链路自适应反馈。 对未来发送资源分配的了解使各个数据发送单元能够预测未来发射间隔的干扰条件，从而计算利用低干扰条件的链路自适应反馈。 单个数据发送单元从其所支持的数据接收单元接收将来发送间隔的链路自适应反馈，并对未来发送间隔进行相应的链路适配。 在一个或多个实施例中，这样的操作在宽带码分多址（WCDMA），长期演进LTE）或WiMAX网络中进行，其中数据发送单元包括无线电基站，并且数据接收单元包括无线 通讯设备。
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