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1. 发明申请

US20110007793A1 JOINT TIME/FREQUENCY PROCESSING FOR WIRELESS RECEIVERS 有权
标题翻译：无线接收器的联合时间/频率处理
公开(公告)号：US20110007793A1
公开(公告)日：2011-01-13
申请号：US12500891
申请日：2009-07-10
申请人： Douglas A. Cairns , Andres Reial , Anders Wallen
发明人： Douglas A. Cairns , Andres Reial , Anders Wallen
IPC分类号： H04L27/01
CPC分类号： H04L25/03261 , H04L25/03235
摘要： Channel estimation and/or equalization processing is performed in 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中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，通过净频道发送的接收信号通过对频域中的接收信号进行预滤波来处理。频域预滤波将网络通道的N抽头有效网格表示压缩为K

2. 发明授权

US08798176B2 Joint time/frequency processing for wireless receivers 有权
标题翻译：无线接收机的联合时间/频率处理
公开(公告)号：US08798176B2
公开(公告)日：2014-08-05
申请号：US12500891
申请日：2009-07-10
申请人： Douglas A. Cairns , Andres Reial , Anders Wallén
发明人： Douglas A. Cairns , Andres Reial , Anders Wallén
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L25/03261 , H04L25/03235
摘要： Channel estimation and/or equalization processing is performed in 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中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，通过净频道发送的接收信号通过对频域中的接收信号进行预滤波来处理。频域预滤波将网络通道的N抽头有效网格表示压缩成K

3. 发明授权

US08699553B2 Data-aided SIR estimation 有权
标题翻译：数据辅助SIR估计
公开(公告)号：US08699553B2
公开(公告)日：2014-04-15
申请号：US12709239
申请日：2010-02-19
申请人： Anders Rosenqvist , Douglas A. Cairns , Andres Reial
发明人： Anders Rosenqvist , Douglas A. Cairns , Andres Reial
IPC分类号： H04B17/00 , H04L25/08
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。

4. 发明授权

US08675879B2 Methods and devices for allocating scrambling codes 有权
标题翻译：用于分配扰码的方法和设备
公开(公告)号：US08675879B2
公开(公告)日：2014-03-18
申请号：US13500590
申请日：2010-11-03
申请人： Oskar Drugge , Douglas A. Cairns , Muhammad Kazmi , Andres Reial
发明人： Oskar Drugge , Douglas A. Cairns , Muhammad Kazmi , Andres Reial
IPC分类号： H04K1/00
CPC分类号： H04J11/005 , H04B1/70735 , H04B1/7083 , H04J11/0073 , H04J11/0076 , H04J11/0079 , H04L5/0023 , H04L5/0037 , H04L5/0048 , H04L25/0226 , H04L25/03866 , H04L27/2655
摘要： A method of operating a User Equipment (UE) for generating a second scrambling code group where the UE is configured for receiving downlink transmission from a Universal Mobile Telecommunications System Terrestrial Radio Access Network (UTRAN) on a set of at least two downlink carriers including an anchor carrier and at least a first secondary carrier includes: determining a first scrambling code group associated with a first cell on the anchor carrier and deriving the second scrambling code group associated with a second cell on said first secondary carrier using a predefined rule defining the relation between the second scrambling code group and the first scrambling code group.
摘要翻译：一种操作用户设备（UE）的方法，用于生成第二扰码组，其中UE被配置用于从通用移动电信系统地面无线电接入网络（UTRAN）接收在至少两个下行链路载波的集合上的下行链路传输，所述至少两个下行链路载波包括锚定载波和至少第一辅助载波包括：确定与所述锚定载波上的第一小区相关联的第一扰码组，并使用定义所述关系的预定义规则导出与所述第一辅助载波上的第二小区相关联的所述第二扰码组在第二加扰码组和第一加扰码组之间。

5. 发明授权

US08045600B2 Method and apparatus for compensating for processing timing misalignment in a communication receiver 有权
标题翻译：用于补偿通信接收机中的处理定时未对准的方法和装置
公开(公告)号：US08045600B2
公开(公告)日：2011-10-25
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： H04B1/00
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。

6. 发明申请

US20110206167A1 Data-Aided SIR Estimation 有权
标题翻译：数据辅助SIR估计
公开(公告)号：US20110206167A1
公开(公告)日：2011-08-25
申请号：US12709239
申请日：2010-02-19
申请人： Anders Rosenqvist , Douglas A. Cairns , Andres Reial
发明人： Anders Rosenqvist , Douglas A. Cairns , Andres Reial
IPC分类号： H04B1/10
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。

7. 发明申请

US20120219155A1 METHODS AND DEVICES FOR ALLOCATING SCRAMBLING CODES 有权
标题翻译：用于分配SCRAMBLING代码的方法和设备
公开(公告)号：US20120219155A1
公开(公告)日：2012-08-30
申请号：US13500590
申请日：2010-11-03
申请人： Oskar Drugge , Douglas A. Cairns , Muhammad Kazmi , Andres Reial
发明人： Oskar Drugge , Douglas A. Cairns , Muhammad Kazmi , Andres Reial
IPC分类号： H04K1/04 , H04W4/00
CPC分类号： H04J11/005 , H04B1/70735 , H04B1/7083 , H04J11/0073 , H04J11/0076 , H04J11/0079 , H04L5/0023 , H04L5/0037 , H04L5/0048 , H04L25/0226 , H04L25/03866 , H04L27/2655
摘要： Methods and devices are provided whereby scrambling codes can be set in an improved way. In accordance with one embodiment a method is provided in a User Equipment for generating a second scrambling code or a second scrambling code group. The UE is configured for multi carrier operation receiving downlink transmission from a Universal Mobile Telecommunications System Terrestrial Radio Access Network on a set of at least two downlink carriers including an anchor carrier and at least a first secondary carrier. The method comprises determining a first scrambling code or a first scrambling code group associated with a first cell on the anchor carrier; and deriving a second scrambling code or a second scrambling code group associated with a second cell on said first secondary carrier using a predefined rule defining the relation between the second scrambling code or second scrambling code group and the first scrambling code or scrambling code group. Hereby interference suppression/cancellation processing is enabled in a receiver of a UE on secondary cells in multi-carrier scenarios that do not transmit the SCH, while minimizing the need for overhead in terms of signaling of the scrambling codes for neighbouring cells in a UTRAN system. Methods and devices for E-UTRAN are also described.
摘要翻译：提供了可以以改进的方式设置扰码的方法和装置。根据一个实施例，在用于生成第二扰码或第二扰码组的用户设备中提供了一种方法。 UE被配置用于多载波操作，从包括锚定载波和至少第一辅助载波的至少两个下行链路载波的集合中接收来自通用移动电信系统地面无线电接入网络的下行链路传输。该方法包括确定与锚定载波上的第一小区相关联的第一扰码或第一加扰码组; 以及使用定义第二加扰码或第二加扰码组与第一扰码或扰频码组之间的关系的预定义规则，导出与所述第一辅助载波上的第二小区相关联的第二扰码或第二扰码组。因此，在不发送SCH的多载波场景中的辅助小区的UE的接收机中实现干扰抑制/消除处理，同时最小化对在UTRAN系统中的相邻小区的扰码的信令的开销的需要。还描述了用于E-UTRAN的方法和设备。

8. 发明授权

US07711033B2 SIR prediction method and apparatus 有权
标题翻译： SIR预测方法和装置
公开(公告)号：US07711033B2
公开(公告)日：2010-05-04
申请号：US11105797
申请日：2005-04-14
申请人： Andres Reial , Douglas A. Cairns
发明人： Andres Reial , Douglas A. Cairns
IPC分类号： H04B1/00
CPC分类号： H04B17/309 , H04B2201/709727 , H04W52/223
摘要： The present invention provides a method and apparatus for generating SIR estimates early in a time interval that include the benefits of interference suppression without requiring the computation of specific interference suppression elements. In particular, the present invention generates an SIR estimate for a RAKE receiver during a current time interval based on channel estimates generated based on the received signal(s). By applying an offset derived during a previous time interval to the RAKE SIR estimate, the present invention generates a second SIR estimate for a G-RAKE receiver.
摘要翻译：本发明提供了一种用于在包括干扰抑制的优点的时间间隔早期产生SIR估计的方法和装置，而不需要计算特定的干扰抑制元件。特别地，本发明基于基于接收到的信号生成的信道估计，在当前时间间隔内产生RAKE接收机的SIR估计。通过将在先前时间间隔中导出的偏移应用于RAKE SIR估计，本发明为G-RAKE接收机生成第二SIR估计。

9. 发明授权

US08144749B2 Nonparametric MIMO G-Rake receiver 有权
标题翻译：非参数MIMO G-Rake接收机
公开(公告)号：US08144749B2
公开(公告)日：2012-03-27
申请号：US12198973
申请日：2008-08-27
申请人： Douglas A. Cairns , Elias Jonsson , Anders Rosenqvist , Andres Reial , Stephen Grant
发明人： Douglas A. Cairns , Elias Jonsson , Anders Rosenqvist , Andres Reial , Stephen Grant
IPC分类号： H04B1/707 , H04L1/06
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：使用非参数G-Rake接收机，可以使用多输入多输出（MIMO）场景中的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。更具体地说，在存在码重用干扰项的MIMO场景中，基于使用非参数机制的导频信道来计算损害协方差矩阵。针对非参数G-Rake接收机响应于损害协方差矩阵并通过计算代码重用干扰项来确定组合权重。

10. 发明申请

US20100054309A1 NONPARAMETRIC MIMO G-RAKE RECEIVER 有权
标题翻译：非绝对MIMO G-RAKE接收机
公开(公告)号：US20100054309A1
公开(公告)日：2010-03-04
申请号：US12198973
申请日：2008-08-27
申请人： Douglas A. Cairns , Elias Jonsson , Anders Rosenqvist , Andres Reial , Stephen Grant
发明人： Douglas A. Cairns , Elias Jonsson , Anders Rosenqvist , Andres Reial , Stephen Grant
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：使用非参数G-Rake接收机，可以使用多输入多输出（MIMO）场景中的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。更具体地说，在存在码重用干扰项的MIMO场景中，基于使用非参数机制的导频信道来计算损害协方差矩阵。针对非参数G-Rake接收机响应于损害协方差矩阵并通过计算代码重用干扰项来确定组合权重。

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