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1. 发明申请

WO2010023530A2 NONPARAMETRIC MIMO G-RAKE RECEIVER 审中-公开
标题翻译：非参数MIMO G-RAKE接收机
公开(公告)号：WO2010023530A2
公开(公告)日：2010-03-04
申请号：PCT/IB2009/006619
申请日：2009-08-24
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CAIRNS, Douglas, A. , GRANT, Stephen , REIAL, Andres , ROSENQVIST, Anders , JONSSON, Elias
发明人： CAIRNS, Douglas, A. , GRANT, Stephen , REIAL, Andres , ROSENQVIST, Anders , JONSSON, Elias
IPC分类号： H04B1/707
CPC分类号： H04B1/712 , H04B2201/709727
摘要： With a nonparametric G-Rake receiver, combining weights may be determined using a nonparametric mechanism in multiple-input, multiple-output (MIMO) scenarios. In an example embodiment, a method for a receiving device having a nonparametric G-Rake receiver entails calculating an impairment covariance matrix and determining combining weights. More specifically, the impairment covariance matrix is calculated based on a pilot channel using a nonparametric mechanism in a MIMO scenario in which a code-reuse interference term exists. The combining weights are determined for the nonparametric G-Rake receiver responsive to the impairment covariance matrix and by accounting for the code-reuse interference term.
摘要翻译：对于非参数G-Rake接收机，可以在多输入多输出（MIMO）场景中使用非参数机制来确定组合权重。在示例实施例中，具有非参数G-Rake接收机的接收设备的方法需要计算损害协方差矩阵并确定组合权重。更具体地，在存在代码重用干扰项的MIMO场景中，使用非参数机制基于导频信道来计算损害协方差矩阵。对于响应于损害协方差矩阵的非参数G-Rake接收机以及通过考虑代码重用干扰项来确定组合权重。

2. 发明申请

WO2011101230A2 DATA-AIDED SIR ESTIMATION 审中-公开
标题翻译：数据助听器估计
公开(公告)号：WO2011101230A2
公开(公告)日：2011-08-25
申请号：PCT/EP2011/051287
申请日：2011-01-31
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , ROSENQVIST, Anders , REIAL, Andres , CAIRNS, Douglas
发明人： ROSENQVIST, Anders , REIAL, Andres , CAIRNS, Douglas
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。

3. 发明申请

WO2011101753A1 BLIND SIR ESTIMATION USING SOFT BIT VALUES 审中-公开
标题翻译：使用软位值的盲点估计
公开(公告)号：WO2011101753A1
公开(公告)日：2011-08-25
申请号：PCT/IB2011/050161
申请日：2011-01-13
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , BOTTOMLEY, Gregory E. , ROSENQVIST, Anders , REIAL, Andres
发明人： BOTTOMLEY, Gregory E. , ROSENQVIST, Anders , REIAL, Andres
IPC分类号： H04B17/00
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与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。在任一种情况下，可以缩放SIR估计以获得期望的单位。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。

4. 发明申请

WO2011051187A1 SCHEDULING OF UP-LINK TRANSMISSIONS OF A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统的上行传输调度
公开(公告)号：WO2011051187A1
公开(公告)日：2011-05-05
申请号：PCT/EP2010/065986
申请日：2010-10-22
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , ROSENQVIST, Anders , REIAL, Andres , LINDOFF, Bengt
发明人： ROSENQVIST, Anders , REIAL, Andres , LINDOFF, Bengt
IPC分类号： H04W72/04 , H04B7/04
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。

5. 发明申请

WO2010127984A1 METHOD AND APPARATUS FOR IMPROVED CHANNEL ESTIMATION BY GENERATION OF SUPPLEMENTAL PILOT SYMBOLS 审中-公开
标题翻译：通过补充引导符号生成改进的信道估计的方法和装置
公开(公告)号：WO2010127984A1
公开(公告)日：2010-11-11
申请号：PCT/EP2010/055777
申请日：2010-04-29
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , ROSENQVIST, Anders , REIAL, Andres , NILSSON, Johan
发明人： ROSENQVIST, Anders , REIAL, Andres , NILSSON, Johan
IPC分类号： H04L25/02
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。

6. 发明申请

WO2010026108A2 METHODS AND APPARATUS FOR IMPROVING CELL-EDGE DATA THROUGHPUT IN A WIRELESS COMMUNICATIONS SYSTEM 审中-公开
标题翻译：在无线通信系统中改善细胞边缘数据的方法和装置
公开(公告)号：WO2010026108A2
公开(公告)日：2010-03-11
申请号：PCT/EP2009/061142
申请日：2009-08-28
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , LINDOFF, Bengt , ROSENQVIST, Anders , REIAL, Andres
发明人： LINDOFF, Bengt , ROSENQVIST, Anders , REIAL, Andres
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非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。

7. 发明申请

WO2011128246A1 INTERFERENCE AVOIDANCE IN WHITE SPACE COMMUNICATION SYSTEMS 审中-公开
标题翻译：白色空间通信系统中的干扰避免
公开(公告)号：WO2011128246A1
公开(公告)日：2011-10-20
申请号：PCT/EP2011/055430
申请日：2011-04-07
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , REIAL, Andres , ROSENQVIST, Anders , BERGLJUNG, Christian
发明人： REIAL, Andres , ROSENQVIST, Anders , BERGLJUNG, Christian
IPC分类号： H04W16/14
CPC分类号： H04W16/14 , H04W64/00
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的信号的感测信息，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。

8. 发明申请

WO2010006874A2 METHOD AND APPARATUS FOR GENERATING CHANNEL QUALITY ESTIMATES 审中-公开
标题翻译：产生信道质量估计的方法和设备
公开(公告)号：WO2010006874A2
公开(公告)日：2010-01-21
申请号：PCT/EP2009/057589
申请日：2009-06-18
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , REIAL, Andres , LINDOFF, Bengt , ROSENQVIST, Anders
发明人： REIAL, Andres , LINDOFF, Bengt , ROSENQVIST, Anders
IPC分类号： H04W72/08 , H04L1/00
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由移动终端从基站接收的信号的信号功率以及与在第一时间期间有助于接收信号的总损害的减损分量的功率有关的一个或多个干扰参数间隔。基站基于损伤分量的功率的预期变化来计算第一时间间隔之后的第二时间间隔的估计信道质量指示。第二时间间隔的估计信道质量指示被基站用来调度移动终端并确定传输格式。

9. 发明申请

WO2009132937A1 A METHOD AND APPARATUS FOR COMPENSATING FOR PROCESSING TIMING MISALIGNMENT IN A COMMUNICATION RECEIVER 审中-公开
标题翻译：一种用于在通信接收机中处理时间误差的补偿的方法和装置
公开(公告)号：WO2009132937A1
公开(公告)日：2009-11-05
申请号：PCT/EP2009/054184
申请日：2009-04-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , REIAL, Andres , CAIRNS, Douglas , GRANT, Stephen , RIBACK, Mathias
发明人： REIAL, Andres , CAIRNS, Douglas , GRANT, Stephen , RIBACK, Mathias
IPC分类号： H04B1/707
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在所估计的路径延迟上设置处理延迟。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关节中的分数定时偏移的组合的函数中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。

10. 发明申请

WO2011004353A2 JOINT TIME/FREQUENCY PROCESSING FOR WIRELESS RECEIVERS 审中-公开
标题翻译：无线接收器的联合时间/频率处理
公开(公告)号：WO2011004353A2
公开(公告)日：2011-01-13
申请号：PCT/IB2010/053163
申请日：2010-07-09
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CAIRNS, Douglas A. , WALLÉN, Anders , REIAL, Andres
发明人： CAIRNS, Douglas A. , WALLÉN, Anders , REIAL, Andres
IPC分类号： H04L25/03
CPC分类号： H04L25/03261 , H04L25/03235
摘要： Channel estimation and/or equalization processing is performed m a wireless receiver in two stages. The first stage involves pre-filtering in the frequency domain to compact a grid-based representation of the net channel. The second stage involves implementing reduced-complexity time domain channel estimation and or equalization. According to one embodiment, a received signal transmitted over a net channel is processed by pre-filtering the received signal in the frequency domain The frequency domain pre-filtering compacts an N-tap effective grid-based representation of the net channel into a K-tap compacted grid-based representation of the net channel where K
摘要翻译：信道估计和/或均衡处理在两个阶段在无线接收机中执行。第一阶段涉及在频域中进行预滤波以压缩网络通道的基于网格的表示。第二阶段涉及实现降低复杂度的时域信道估计和/或均衡。根据一个实施例，通过在频域中对接收到的信号进行预滤波来处理通过网络信道发射的接收信号。频域预滤波将网络信道的N抽头有效网格表示压缩成K- 基于压缩的基于网格的净通道的表示，其中K

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