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81. 发明授权

US07822101B2 Method and apparatus for interference suppression in a wireless communication receiver 有权
标题翻译：用于无线通信接收机中的干扰抑制的方法和装置
公开(公告)号：US07822101B2
公开(公告)日：2010-10-26
申请号：US11767905
申请日：2007-06-25
申请人： Andres Reial
发明人： Andres Reial
IPC分类号： H04L27/30
CPC分类号： H04B1/712 , H04B1/7103 , H04B2201/70702 , H04B2201/70707 , H04B2201/709727
摘要： According to methods and apparatus taught herein, a parametric model of received signal impairment correlations includes a parametric model term that accounts for a dominant receiver but does not result in any significant increase in parametric modeling complexity. In more detail, the parametric model models the dominant interferer as a spatial interferer, which is hypothesized as a point source of interference emanating along single-path channels to each of two or more receiver antennas. The dominant interferer thus is represented in terms of its spatial correlation across receiver antennas. The dominant interferer model term may be included in an overall model fitting process, or it may be fitted separately. Regardless, the spatial modeling approach taught herein may be used for WCDMA and other systems, and may be embodied in essentially any type of linear equalizer receiver structure.
摘要翻译：根据本文教导的方法和装置，接收信号损害相关的参数模型包括考虑显性接收机但不导致参数建模复杂度的任何显着增加的参数模型项。更详细地，参数模型将主要干扰源建模为空间干扰源，其被假设为沿着沿着单路径信道发送到两个或更多个接收机天线中的每一个的干扰点。因此，显着的干扰源就是通过接收机天线的空间相关来表示的。主要的干扰源模型项可以被包括在整体模型拟合过程中，或者可以单独地拟合。无论如何，本文教导的空间建模方法可以用于WCDMA和其他系统，并且可以基本上体现在任何类型的线性均衡器接收机结构中。

82. 发明授权

US07746961B2 Efficient detection of predetermined sequences 有权
标题翻译：有效检测预定序列
公开(公告)号：US07746961B2
公开(公告)日：2010-06-29
申请号：US11279287
申请日：2006-04-11
申请人： Andres Reial , Peter Malm
发明人： Andres Reial , Peter Malm
IPC分类号： H04L27/06
CPC分类号： H04B1/70755 , H04B1/7077
摘要： Hypothesis tests, such as maximum likelihood detections, are executed on symbol sequences received by, for example, a user equipment (UE) in a communication system. The hypothesis tester checks a received sequence against a group of predetermined sequences that possibly could have been sent to the UE. For received sequences that are matched or not matched by the hypothesis tester with high confidence, complete decoding, for example, with a Viterbi decoder, is not necessary. Instead, complete decoding is used as a “tie-breaker” for those sequences which the hypothesis tester cannot match or not match with desired confidence levels.
摘要翻译：在例如通信系统中的用户设备（UE）接收的符号序列上执行诸如最大似然检测的假设检验。假设测试者根据可能已经发送给UE的一组预定序列来检查接收到的序列。对于具有高置信度的假设检验者匹配或不匹配的接收序列，例如使用维特比解码器，完全解码是不必要的。相反，完全解码被用作假设检验者不能匹配或不符合期望置信水平的那些序列的“断路器”。

83. 发明申请

US20100159862A1 Method and Apparatus for Frequency Control in Wireless Communications 有权
标题翻译：无线通信中频率控制的方法与装置
公开(公告)号：US20100159862A1
公开(公告)日：2010-06-24
申请号：US12337964
申请日：2008-12-18
申请人： Andres Reial , Bo Bernhardsson , Xiaohui Wang
发明人： Andres Reial , Bo Bernhardsson , Xiaohui Wang
IPC分类号： H04B1/06 , H04B1/16
CPC分类号： H03J7/02
摘要： The automatic frequency correction value applied by a receiver is altered to minimize long-term drift of a path delay profile. In one embodiment, the phase or timing error resulting from constant frequency corrections is accumulated, and an estimated frequency correction value is selectively quantized into an actual frequency correction value in response to the accumulated phase/timing error. The quantized value above or below the estimate is selected to minimize the accumulated phase/timing error that gives rise to path delay profile drift. In another embodiment, a timing circuit measures the instantaneous path delay profile drift incurred with each frequency correction, and integrates the instantaneous drift measurements over time to yield a path delay profile drift. The drift (or its rate of change) is then used to adjust a frequency correction value so as to minimize the drift.
摘要翻译：由接收机施加的自动频率校正值被改变以最小化路径延迟分布的长期漂移。在一个实施例中，累积了由恒定频率校正引起的相位或定时误差，并且响应于累积的相位/定时误差，将估计频率校正值选择性地量化为实际频率校正值。选择高于或低于估计的量化值以最小化引起路径延迟分布漂移的累积相位/定时误差。在另一个实施例中，定时电路测量每个频率校正引起的瞬时路径延迟分布漂移，并且随着时间的推移积分瞬时漂移测量值，以产生路径延迟分布漂移。然后使用漂移（或其变化率）来调整频率校正值，以便使漂移最小化。

84. 发明申请

US20100081403A1 Rake Receiver and a Method of Allocating Fingers in a RAKE Receiver 有权
标题翻译：耙式接收机和在RAKE接收机中分配手指的方法
公开(公告)号：US20100081403A1
公开(公告)日：2010-04-01
申请号：US12529185
申请日：2008-02-27
申请人： Andres Reial
发明人： Andres Reial
IPC分类号： H04B17/02
CPC分类号： H04B1/7117 , H04B7/086 , H04B7/0897
摘要： A RAKE receiver is adapted to receive input from at least a first and a second antenna (104a, 104b). The RAKE receiver comprises a despreading unit (303) adapted to allocate a number (Nf) of despreading fingers to a number of delay positions of a signal which is transmitted over a channel. The RAKE receiver further comprises a delay position selection unit (305) which estimates an antenna correlation (formula 1) between the at least first and second antenna (104a, 104b) and controls the despreading unit (303) according to a first strategy for allocating the number (Nf) of fingers if the antenna correlation (formula 1) is below a predetermined threshold, and according to a second strategy otherwise. The threshold (formula 2) is selected based on at least one of the following: number of available finger in the RAKE receiver (Nf), dispersion of the channel, range of direction of arrivals (Δφ).
摘要翻译： RAKE接收机适于从至少第一和第二天线（104a，104b）接收输入。 RAKE接收机包括解扩单元（303），该解扩单元（303）适于将数量（Nf）个解扩手指分配给通过信道发送的信号的多个延迟位置。 RAKE接收机还包括延迟位置选择单元（305），其估计所述至少第一和第二天线（104a，104b）之间的天线相关性（公式1），并根据用于分配的第一策略来控制解扩单元（303）如果天线相关（公式1）低于预定阈值，并且根据第二策略，则手指的数量（Nf）。基于以下中的至少一个来选择阈值（公式2）：RAKE接收机（Nf）中的可用手指的数量，信道的色散，到达方向的范围（＆Dgr＆amp; Phgr）。

85. 发明申请

US20100056170A1 Methods and Apparatus for Improving Cell-Edge Data Throughput in a Wireless Communications System 有权
标题翻译：用于改善无线通信系统中的小区边缘数据吞吐量的方法和装置
公开(公告)号：US20100056170A1
公开(公告)日：2010-03-04
申请号：US12204040
申请日：2008-09-04
申请人： Bengt Lindoff , Andres Reial , Anders Rosenqvist
发明人： Bengt Lindoff , Andres Reial , Anders Rosenqvist
IPC分类号： H04Q7/20
CPC分类号： H04L1/0026 , H04W72/082
摘要： Methods and apparatus for adaptively transmitting data in a wireless communication network are disclosed, in which channel conditions between a mobile terminal and two or more base stations in an active set are evaluated and used to select a transmission mode from a set of available downlink transmission modes including a non-interference-coordinated point-to-point transmission mode as well as at least one of a multi-cell single-frequency-network transmission mode and an interference-coordinated point-to-point transmission mode. Using the dynamic transmission mode selection described herein, a higher cell-edge throughput in HSDPA systems may be achieved.
摘要翻译：公开了一种用于在无线通信网络中自适应地发送数据的方法和装置，其中评估活动集中的移动终端与两个或多个基站之间的信道条件，并用于从一组可用的下行链路传输模式中选择传输模式包括无干扰协调的点对点传输模式以及多小区单频网传输模式和干扰协调点对点传输模式中的至少一个。使用本文描述的动态传输模式选择，可以实现HSDPA系统中更高的小区边缘吞吐量。

86. 发明申请

US20100054373A1 Method and Apparatus for Low-Complexity Interference Cancellation in Communication Signal Processing 有权
标题翻译：通信信号处理中低复杂度干扰消除的方法和装置
公开(公告)号：US20100054373A1
公开(公告)日：2010-03-04
申请号：US12201303
申请日：2008-08-29
申请人： Andres Reial
发明人： Andres Reial
IPC分类号： H03D1/04
CPC分类号： H04L25/03305
摘要： The teachings herein disclose interference cancellation processing that uses hard decision logic for simplified estimation of interfering signals, in combination with soft scaling of the hard decisions for better interference cancellation performance, particularly in low signal quality conditions. In one aspect, the soft scaling may be understood as attenuating the amount of interference cancellation applied by a receiver, in dependence on the dynamically changing received signal quality at the receiver. More attenuation is applied at lower signal quality because the hard decisions are less reliable at lower signal qualities, while less (or no) attenuation is applied at higher signal qualities, reflecting the higher reliability of the hard decisions at higher signal qualities. Signal quality may be quantized into ranges, with a different value of soft scaling factor used for each range, or a soft scaling factor may be calculated for the continuum of measured signal quality.
摘要翻译：本文的教导公开了干扰消除处理，其使用硬判决逻辑来简化干扰信号的估计，结合硬判决的软缩放以获得更好的干扰消除性能，特别是在低信号质量条件下。在一个方面，软缩放可以被理解为根据接收机处的动态变化的接收信号质量来衰减由接收机施加的干扰消除量。在更低的信号质量下应用更多的衰减，因为在较低的信号质量下硬判决不太可靠，而在更高的信号质量下应用更少（或不）衰减），这反映出在较高信号质量下硬判决的可靠性更高。信号质量可以被量化到范围内，具有用于每个范围的软缩放因子的不同值，或者可以为测量信号质量的连续性计算软缩放因子。

87. 发明申请

US20090268787A1 Method and Apparatus for Compensating for Processing Timing Misalignment in a Communication Receiver 有权
标题翻译：用于补偿通信接收器中的处理定时不对准的方法和装置
公开(公告)号：US20090268787A1
公开(公告)日：2009-10-29
申请号：US12111526
申请日：2008-04-29
申请人： Douglas A. Cairns , Stephen J. Grant , Andres Reial , Mathias Riback
发明人： Douglas A. Cairns , Stephen J. Grant , Andres Reial , Mathias Riback
IPC分类号： H04L27/06
CPC分类号： H04B1/712 , H04B1/7105 , H04B1/7117 , H04B2201/709727
摘要： According to the teachings presented herein, a wireless communication apparatus compensates for timing misalignment in its received signal processing. In at least one embodiment, the apparatus estimates a set of path delays for a received signal and sets processing delays on the estimated path delays. The apparatus jointly hypothesizes combinations of fractional timing offsets for two or more paths, and computes a decision metric for each joint hypothesis that indicates the accuracy of the joint hypothesis. As non-limiting examples, the decision metric may be a signal quality metric, or a distance metric (such as between a measured net channel response and an effective net channel response reconstructed as a function of the combination of fractional timing offsets included in the joint hypothesis). The apparatus evaluates the decision metrics to identify a best estimate of timing misalignment, and correspondingly compensates coherent processing of the received signal.
摘要翻译：根据本文提出的教导，无线通信装置补偿其接收信号处理中的定时未对准。在至少一个实施例中，该装置估计接收信号的一组路径延迟并且对所估计的路径延迟设置处理延迟。该装置共同假设两个或多个路径的分数定时偏移的组合，并且计算指示联合假设的准确性的每个联合假设的决策度量。作为非限制性示例，决策度量可以是信号质量度量或距离度量（诸如在测量的净信道响应和作为包括在联合中的分数定时偏移的组合的函数之间重建的有效网络信道响应之间）假设）。设备评估决策度量以识别定时未对准的最佳估计，并相应地补偿接收信号的相干处理。

88. 发明申请

US20080205562A1 Method and Apparatus for Impairment Correlation Estimation in MIMO Systems 有权
标题翻译： MIMO系统中损伤相关估计的方法和装置
公开(公告)号：US20080205562A1
公开(公告)日：2008-08-28
申请号：US11679541
申请日：2007-02-27
申请人： Elias Jonsson , Andres Reial
发明人： Elias Jonsson , Andres Reial
IPC分类号： H04B7/10
CPC分类号： H04W72/12 , H04B1/7103 , H04B1/712 , H04B7/0615 , H04B7/0669 , H04B7/0697 , H04B2201/70701 , H04B2201/709727 , Y02D70/40 , Y02D70/444
摘要： The teachings herein disclose methods and apparatus that simplify impairment correlation estimation for received signal processing, based on determining, for any given processing interval, which impairment contributors should be considered in the estimation of overall received signal impairment correlations. These simplifications reduce computational processing requirements, allowing reduced circuit complexity and/or reduced operating power, and improve receiver performance. A corresponding transmitter and transmission method include transmitting multiple information streams to targeted receivers according to ongoing scheduling, and controlling the ongoing scheduling to reduce the number of impairment contributors considered in impairment correlation estimation at the targeted receivers. In one embodiment, a receiver identifies which impairment contributors to consider based on receiving control information. In another embodiment, the receiver identifies the impairment contributors to consider based on background processing, e.g., background determination of parametric model fitting parameters for a plurality of impairment contributors, and observing those model fitting parameters over time.
摘要翻译：本文的教导公开了简化对接收信号处理的损害相关估计的方法和装置，其基于对于任何给定的处理间隔，在估计总体接收信号损害相关中应考虑哪些损害贡献者。这些简化减少了计算处理要求，从而降低了电路复杂度和/或降低了操作功率，并提高了接收机性能。相应的发射机和传输方法包括根据正在进行的调度向目标接收机发送多个信息流，并控制正在进行的调度，以减少目标接收机的损害相关估计中所考虑的损害贡献者的数量。在一个实施例中，接收机基于接收控制信息识别要考虑的损害贡献者。在另一个实施例中，接收机基于背景处理识别要考虑的损害贡献者，例如用于多个损害贡献者的参数模型拟合参数的背景确定，以及随时间观察这些模型拟合参数。

89. 发明授权

US07382292B1 Method and apparatus for efficient signal interpolation 有权
标题翻译：用于高效信号插值的方法和装置
公开(公告)号：US07382292B1
公开(公告)日：2008-06-03
申请号：US11558579
申请日：2006-11-10
申请人： Andres Reial
发明人： Andres Reial
IPC分类号： H03M7/00
CPC分类号： H04B1/7117 , H04B2201/709727
摘要： In one or more embodiments, an over-sampling method and corresponding over-sampling circuit efficiently generate an over-sampled signal by determining sampling phases in the over-sampled signal that are unused by downstream processing of the over-sampled signal, and skipping the generation of output values for the over-sampled signal that correspond to the unused sampling phases. In a communication receiver embodiment, determining the unused sampling phases comprises, with respect to currently estimated multipath delays of a received communication signal from which the over-sampled signal is derived, determining which sampling phases in the over-sampled signal will not be used by a downstream processing circuit having known processing delay assignment constraints. The known delay assignment constraints comprise Rake finger placement constraints or channel equalizer tap placement constraints, for example.
摘要翻译：在一个或多个实施例中，过采样方法和相应的过采样电路通过确定过采样信号中的未采样的采样相位有效地产生过采样信号，该过采样信号通过下采样信号的下行处理而跳过产生对应于未使用的采样相位的过采样信号的输出值。在通信接收机实施例中，确定未使用的采样相位包括对于从其中导出过采样信号的接收通信信号的当前估计的多径延迟，确定过采样信号中的哪些采样相位将不被具有已知处理延迟分配约束的下游处理电路。已知的延迟分配约束例如包括耙指放置约束或信道均衡器抽头布置约束。

90. 发明申请

US20080111724A1 METHOD AND APPARATUS FOR EFFICIENT SIGNAL INTERPOLATION 有权
标题翻译：用于高效信号插值的方法和装置
公开(公告)号：US20080111724A1
公开(公告)日：2008-05-15
申请号：US11558579
申请日：2006-11-10
申请人： Andres Reial
发明人： Andres Reial
IPC分类号： H03M1/00
CPC分类号： H04B1/7117 , H04B2201/709727
摘要： In one or more embodiments, an over-sampling method and corresponding over-sampling circuit efficiently generate an over-sampled signal by determining sampling phases in the over-sampled signal that are unused by downstream processing of the over-sampled signal, and skipping the generation of output values for the over-sampled signal that correspond to the unused sampling phases. In a communication receiver embodiment, determining the unused sampling phases comprises, with respect to currently estimated multipath delays of a received communication signal from which the over-sampled signal is derived, determining which sampling phases in the over-sampled signal will not be used by a downstream processing circuit having known processing delay assignment constraints. The known delay assignment constraints comprise Rake finger placement constraints or channel equalizer tap placement constraints, for example.
摘要翻译：在一个或多个实施例中，过采样方法和相应的过采样电路通过确定过采样信号中的未采样的采样相位有效地产生过采样信号，该过采样信号通过下采样信号的下行处理而跳过产生对应于未使用的采样相位的过采样信号的输出值。在通信接收机实施例中，确定未使用的采样相位包括对于从其中导出过采样信号的接收通信信号的当前估计的多径延迟，确定过采样信号中的哪些采样相位将不被具有已知处理延迟分配约束的下游处理电路。已知的延迟分配约束例如包括耙指放置约束或信道均衡器抽头布置约束。

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