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公开(公告)号：US08442169B2
公开(公告)日：2013-05-14
申请号：US12709294
申请日：2010-02-19
IPC分类号： H03D11/04
CPC分类号： H04B17/336
摘要： An SIR estimate of a communication signal in a wireless communication system receiver is calculated based on soft bit values output by a nonlinear detector. The average amplitude of the detector output soft bits is estimated. The average power of the detector output soft bits is estimated, e.g., as a mean-square or variance. An SIR of the communication signal is estimated based on the soft bit amplitude and power estimates. In particular, the SIR is estimated as the ratio of the square of soft bit amplitude to the difference between the mean square soft bit power and the square of soft bit amplitude, or the ratio of the square of soft bit amplitude to the variance. In either case, the SIR estimate may be scaled to obtain the desired units. The communication signal may be a received signal, or a simulated signal generated using channel estimates obtained from, e.g., a pilot channel.
摘要翻译： 基于由非线性检测器输出的软比特值来计算无线通信系统接收机中的通信信号的SIR估计。 估计检测器输出软比特的平均幅度。 估计检测器输出软比特的平均功率例如作为均方或方差。 基于软比特幅度和功率估计来估计通信信号的SIR。 特别地，SIR被估计为软比特幅度的平方与平均软比特功率和软比特幅度的平方之间的差或软比特幅度的平方与差异的比的比率。 在任一情况下，可以缩放SIR估计以获得所需单位。 通信信号可以是接收信号，或使用从例如导频信道获得的信道估计而产生的模拟信号。
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公开(公告)号：US20110206107A1
公开(公告)日：2011-08-25
申请号：US12709294
申请日：2010-02-19
CPC分类号： H04B17/336
摘要： An SIR estimate of a communication signal in a wireless communication system receiver is calculated based on soft bit values output by a nonlinear detector. The average amplitude of the detector output soft bits is estimated. The average power of the detector output soft bits is estimated, e.g., as a mean-square or variance. An SIR of the communication signal is estimated based on the soft bit amplitude and power estimates. In particular, the SIR is estimated as the ratio of the square of soft bit amplitude to the difference between the mean square soft bit power and the square of soft bit amplitude, or the ratio of the square of soft bit amplitude to the variance. In either case, the SIR estimate may be scaled to obtain the desired units. The communication signal may be a received signal, or a simulated signal generated using channel estimates obtained from, e.g., a pilot channel.
摘要翻译： 基于由非线性检测器输出的软比特值来计算无线通信系统接收机中的通信信号的SIR估计。 估计检测器输出软比特的平均幅度。 估计检测器输出软比特的平均功率例如作为均方或方差。 基于软比特幅度和功率估计来估计通信信号的SIR。 特别地，SIR被估计为软比特幅度的平方与平均软比特功率和软比特幅度的平方之间的差或软比特幅度的平方与差异的比的比率。 在任一情况下，可以缩放SIR估计以获得所需单位。 通信信号可以是接收信号，或使用从例如导频信道获得的信道估计而产生的模拟信号。
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公开(公告)号：US20120263061A1
公开(公告)日：2012-10-18
申请号：US13490754
申请日：2012-06-07
申请人： Andres Reial , Bengt Lindoff , Anders Rosenqvist
发明人： Andres Reial , Bengt Lindoff , Anders Rosenqvist
IPC分类号： H04L12/26
CPC分类号： H04L1/0023 , H04W72/1231 , H04W72/1284
摘要： A base station receives channel quality reports from a plurality of mobile terminals. The channel quality reports from the mobile terminals indicate the signal power of the signals received by the mobile terminals from the base station and one or more interference parameters relating to the power of impairment components contributing to the total impairment of the received signal during a first time interval. The base station computes an estimated channel quality indication for a second time interval subsequent to the first time interval based on expected variations in the powers of the impairment components. The estimated channel quality indication for the second time interval is used by the base station to schedule the mobile terminals and to determine the transmission format.
摘要翻译： 基站从多个移动终端接收信道质量报告。 来自移动终端的信道质量报告指示移动终端从基站接收的信号的信号功率，以及与第一次接收到的信号的总损害有关的损伤分量的功率有关的一个或多个干扰参数 间隔。 基站在第一时间间隔之后的第二时间间隔基于损伤分量的功率的预期变化来计算估计的信道质量指示。 第二时间间隔的估计信道质量指示由基站用于调度移动终端并确定传输格式。
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公开(公告)号：US20110250857A1
公开(公告)日：2011-10-13
申请号：US12758741
申请日：2010-04-12
IPC分类号： H04B1/04
摘要： Mobile communication system equipment avoids interfering with another transmitter's operation. Sensing information indicating whether the other transmitter's signal has been detected is received from remote sensors, wherein each of the remote sensors is situated at a respective one of two or more sensor locations. The sensing information and information about the sensor locations is used to ascertain one or more exclusion boundaries needed to avoid interfering with the other transmitter's use of the spectral resource. Beamforming parameters are ascertained that will enable the main node to transmit within one or more predefined geographical areas except for any portion of a predefined area located on a far side of the one or more exclusion boundaries. Two or more adjusted signals are produced as a function of the beamforming parameters and one or more signals to be transmitted. The adjusted signals are transmitted from respective ones of two or more antennas.
摘要翻译： 移动通信系统设备避免干扰另一个发射机的操作。 从远程传感器接收指示是否检测到其他发射机信号的感测信息，其中每个远程传感器位于两个或更多个传感器位置中的相应一个。 感测信息和关于传感器位置的信息用于确定一个或多个排除边界，以避免干扰其他发射机对频谱资源的使用。 确定波束成形参数，其将使主节点能够在一个或多个预定义的地理区域内发送，除了位于一个或多个排除边界的远侧上的预定义区域的任何部分。 根据波束成形参数和要发送的一个或多个信号产生两个或更多个调整后的信号。 经调整的信号从两个或更多个天线中的相应的一个发送。
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公开(公告)号：US07711765B2
公开(公告)日：2010-05-04
申请号：US11357816
申请日：2006-02-17
IPC分类号： G06F15/00
CPC分类号： G06F7/5443 , H04B2201/709727
摘要： A method and corresponding circuit for determining a final result for a desired series of multiply-and-accumulate (MAC) operations are based on counting the occurrence of products in the desired series of MAC operations, multiplying the counts by their corresponding products to obtain partial sums, and adding the partial sums to obtain the final result. MAC processing as taught herein can be applied to a wide range of applications, such as received signal processing in wireless communication for computationally efficient (and high-rate) generation of interference correlation estimates and/or equalization filter values for a received communication signal.
摘要翻译： 用于确定期望的一系列乘法和累加（MAC）操作的最终结果的方法和相应的电路是基于计算所需系列MAC操作中的乘积的发生，将计数乘以其相应乘积以获得部分 总和，并添加部分和以获得最终结果。 如本文教导的MAC处理可以应用于广泛的应用，例如用于无线通信中的接收信号处理，用于接收的通信信号的计算有效（和高速率）产生干扰相关估计和/或均衡滤波器值。
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公开(公告)号：US09055603B2
公开(公告)日：2015-06-09
申请号：US13503898
申请日：2010-10-22
申请人： Anders Rosenqvist , Bengt Lindoff , Andres Reial
发明人： Anders Rosenqvist , Bengt Lindoff , Andres Reial
CPC分类号： H04W72/1268 , H04B7/024 , H04B7/0452
摘要： A method is disclosed of scheduling up-link transmissions for a number of terminals of a wireless communication system into a number of groups, wherein each group comprises terminals intended for simultaneous up-link transmission during a respective period of time. A subset metric may be calculated for each of a number of subsets of terminals based on transmissions received from the terminals of the subset. The subset metric is indicative of a simultaneous transmission suitability measure for the terminals of the subset. The subsets may be processed in subset metric order, starting with the subset having a subset metric indicating a least suitability of simultaneous transmission. During the processing, each terminal of the subset that is not already scheduled in a group may be scheduled in a group that does not already comprise another terminal of the subset. Information indicative of the period of time during which a scheduled terminal is intended to transmit may be transmitted to each of the scheduled terminals. Corresponding computer program product, scheduler and arrangement are also disclosed.
摘要翻译： 公开了一种将无线通信系统的多个终端的上行链路传输调度为多个组的方法，其中每个组包括旨在在相应时间段期间同步上行链路传输的终端。 可以基于从子集的终端接收到的传输来为终端的多个子集中的每一个计算子集度量。 子集度量表示对于子集的终端的同时传输适应性度量。 可以以子集度量顺序处理子集，从具有指示同时传输的最小适用性的子集度量的子集开始。 在处理期间，尚未在组中调度的子集的每个终端可以在尚未包括该子集的另一个终端的组中进行调度。 可以向每个调度的终端发送指示预定的终端要发送的时间段的信息。 还公开了相应的计算机程序产品，调度器和布置。
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公开(公告)号：US08447237B2
公开(公告)日：2013-05-21
申请号：US12758741
申请日：2010-04-12
摘要： Mobile communication system equipment avoids interfering with another transmitter's operation. Sensing information indicating whether the other transmitter's signal has been detected is received from remote sensors, wherein each of the remote sensors is situated at a respective one of two or more sensor locations. The sensing information and information about the sensor locations is used to ascertain one or more exclusion boundaries needed to avoid interfering with the other transmitter's use of the spectral resource. Beamforming parameters are ascertained that will enable the main node to transmit within one or more predefined geographical areas except for any portion of a predefined area located on a far side of the one or more exclusion boundaries. Two or more adjusted signals are produced as a function of the beamforming parameters and one or more signals to be transmitted. The adjusted signals are transmitted from respective ones of two or more antennas.
摘要翻译： 移动通信系统设备避免干扰另一个发射机的操作。 从远程传感器接收指示是否检测到其他发射机信号的感测信息，其中每个远程传感器位于两个或更多个传感器位置中的相应一个。 感测信息和关于传感器位置的信息用于确定一个或多个排除边界，以避免干扰其他发射机对频谱资源的使用。 确定波束成形参数，其将使主节点能够在一个或多个预定义的地理区域内发送，除了位于一个或多个排除边界的远侧上的预定义区域的任何部分。 根据波束成形参数和要发送的一个或多个信号产生两个或更多个调整后的信号。 经调整的信号从两个或更多个天线中的相应的一个发送。
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公开(公告)号：US08233427B2
公开(公告)日：2012-07-31
申请号：US12392433
申请日：2009-02-25
申请人： Andres Reial , Bengt Lindoff , Anders Rosenqvist
发明人： Andres Reial , Bengt Lindoff , Anders Rosenqvist
CPC分类号： H04L1/0023 , H04W72/1231 , H04W72/1284
摘要： A base station receives channel quality reports from a plurality of mobile terminals. The channel quality reports from the mobile terminals indicate the signal power of the signals received by the mobile terminals from the base station and one or more interference parameters relating to the power of impairment components contributing to the total impairment of the received signal during a first time interval. The base station computes an estimated channel quality indication for a second time interval subsequent to the first time interval based on expected variations in the powers of the impairment components. The estimated channel quality indication for the second time interval is used by the base station to schedule the mobile terminals and to determine the transmission format.
摘要翻译： 基站从多个移动终端接收信道质量报告。 来自移动终端的信道质量报告指示移动终端从基站接收的信号的信号功率，以及与第一次接收到的信号的总损害有关的损伤分量的功率有关的一个或多个干扰参数 间隔。 基站在第一时间间隔之后的第二时间间隔基于损伤分量的功率的预期变化来计算估计的信道质量指示。 第二时间间隔的估计信道质量指示由基站用于调度移动终端并确定传输格式。
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公开(公告)号：US08699553B2
公开(公告)日：2014-04-15
申请号：US12709239
申请日：2010-02-19
CPC分类号： H04L25/0226 , H04L25/0238
摘要： A signal-to-interference estimate is generated using unknown data symbols in place of or in addition to pilot symbols. Data received over a data channel (traffic channel or control channel) are collected. The data symbols are then used to compute an observation metric based on deviations of the data symbols from a predetermined set of possible data symbols, wherein one of the data symbols and symbol constellation is normalized. A data channel signal-to-interference ratio is then computed based on the observation metric.
摘要翻译： 使用未知数据符号代替导频符号或除导频符号之外，生成信号到干扰估计。 通过数据通道（业务信道或控制信道）接收的数据被收集。 然后，数据符号用于基于来自预定的一组可能的数据符号的数据符号的偏差来计算观测度量，其中数据符号和符号星座之一被归一化。 然后基于观测度量计算数据信道信号干扰比。
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公开(公告)号：US08315339B2
公开(公告)日：2012-11-20
申请号：US12435539
申请日：2009-05-05
申请人： Anders Rosenqvist , Johan Nilsson , Andres Reial
发明人： Anders Rosenqvist , Johan Nilsson , Andres Reial
IPC分类号： H04L27/00
CPC分类号： H04L25/0202 , H04L25/0236
摘要： A user terminal is configured to generate supplemental pilot symbols from data symbols transmitted to other user terminals meeting a predetermined reliability criterion. The supplemental pilot symbols can be used for channel estimation, covariance estimation, CQI estimation, or other purposes.
摘要翻译： 用户终端被配置为从满足预定可靠性标准的其他用户终端发送的数据符号生成补充导频符号。 补充导频符号可用于信道估计，协方差估计，CQI估计或其他目的。
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