公开(公告)号：US08861623B2

公开(公告)日：2014-10-14

申请号：US12472742

申请日：2009-05-27

申请人： Elias Jonsson ,  Oskar Drugge ,  Douglas A. Cairns

发明人： Elias Jonsson ,  Oskar Drugge ,  Douglas A. Cairns

IPC分类号： H04K1/10 ,  H04L27/28 ,  H04B1/7117 ,  H04L25/02

CPC分类号： H04B1/7117 ,  H04L25/0202

摘要： A multi-carrier linear equalization receiver, e.g., a RAKE receiver or chip equalization receiver, is described herein. The multi-carrier receiver distributes processing delays among a plurality of received carriers based on a dispersion determined for each carrier. The receiver initially allocates a minimum number of processing delays sufficient for light dispersion to each carrier. For the dispersive carriers, the receiver allocates one or more additional processing delays. In one embodiment, the additional processing delays are allocated to the dispersive carriers based on SIR.

摘要翻译： 这里描述了多载波线性均衡接收机，例如RAKE接收机或码片均衡接收机。 多载波接收机基于为每个载波确定的色散，在多个接收载波中分配处理延迟。 接收机首先为每个载波分配足够的光散射的最小数量的处理延迟。 对于分散载体，接收机分配一个或多个附加的处理延迟。 在一个实施例中，基于SIR将附加处理延迟分配给色散载波。

公开(公告)号：US20100303132A1

公开(公告)日：2010-12-02

申请号：US12472742

申请日：2009-05-27

申请人： Elias Jonsson ,  Oskar Drugge ,  Douglas A. Cairns

发明人： Elias Jonsson ,  Oskar Drugge ,  Douglas A. Cairns

IPC分类号： H04B1/707 ,  H04L27/28 ,  H04L27/00 ,  H04B1/10

CPC分类号： H04B1/7117 ,  H04L25/0202

摘要： A multi-carrier linear equalization receiver, e.g., a RAKE receiver or chip equalization receiver, is described herein. The multi-carrier receiver distributes processing delays among a plurality of received carriers based on a dispersion determined for each carrier. The receiver initially allocates a minimum number of processing delays sufficient for light dispersion to each carrier. For the dispersive carriers, the receiver allocates one or more additional processing delays. In one embodiment, the additional processing delays are allocated to the dispersive carriers based on SIR.

摘要翻译： 这里描述了多载波线性均衡接收机，例如RAKE接收机或码片均衡接收机。 多载波接收机基于为每个载波确定的色散，在多个接收载波中分配处理延迟。 接收机首先为每个载波分配足够的光散射的最小数量的处理延迟。 对于分散载体，接收机分配一个或多个附加的处理延迟。 在一个实施例中，基于SIR将附加处理延迟分配给色散载波。

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。

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。

公开(公告)号：US08576960B2

公开(公告)日：2013-11-05

申请号：US12628341

申请日：2009-12-01

申请人： Douglas A. Cairns ,  Gregory E. Bottomley ,  Elias Jonsson

发明人： Douglas A. Cairns ,  Gregory E. Bottomley ,  Elias Jonsson

IPC分类号： H04L27/06 ,  H04L23/02

CPC分类号： H04L25/03006 ,  H04B1/71057 ,  H04B2201/709727 ,  H04L25/03178 ,  H04L25/03203 ,  H04L25/03331 ,  H04L2025/03426

摘要： The computation of code-specific channel matrices for an Assisted Maximum Likelihood Detection (AMLD) receiver comprises separately computing high rate matrices that change each symbol period, and a low rate matrix that is substantially constant over a plurality of symbol periods. The high and low rate matrices are combined to generate a code-specific channel matrix for each receiver stage. The high rate matrices include scrambling and spreading code information, and the low rate matrices include information on the net channel response and combining weights. The low rate matrices are efficiently computed by a linear convolution in the frequency domain of the net channel response and combining weights (with zero padding to avoid circular convolution), then transforming the convolution to the time domain and extracting matrix elements. Where the combining weights are constant across stages, a common code-specific channel matrix may be computed and used in multiple AMLD receiver stages.

摘要翻译： 用于辅助最大似然检测（AMLD）接收机的代码特定信道矩阵的计算包括分别计算改变每个符号周期的高速率矩阵和在多个符号周期上基本上恒定的低速率矩阵。 组合高速和低速率矩阵以为每个接收机级生成代码特定的信道矩阵。 高速率矩阵包括加扰和扩展码信息，低速率矩阵包括关于网络信道响应和组合权重的信息。 低速率矩阵通过网络通道响应的频域中的线性卷积和组合权重（零填充以避免循环卷积）有效地计算，然后将卷积变换到时域并提取矩阵元素。 在组合权重跨越阶段恒定的情况下，可以在多个AMLD接收机阶段中计算和使用公共的特定码通道矩阵。

公开(公告)号：US08411725B2

公开(公告)日：2013-04-02

申请号：US12566749

申请日：2009-09-25

申请人： Douglas A. Cairns ,  Jaroslaw Niewczas ,  Yoshitaka Murata ,  Elias Jonsson

发明人： Douglas A. Cairns ,  Jaroslaw Niewczas ,  Yoshitaka Murata ,  Elias Jonsson

IPC分类号： H04B1/00 ,  H03H7/30

CPC分类号： H04B1/712 ,  H04B2201/7071

摘要： Adaptive reconfiguration of a wireless receiver is enabled based on channel geometry. According to an embodiment, the wireless receiver includes a geometry factor processing module and signal processing modules, e.g. such as but not limited to an SIR estimation module, a power estimation module, a despreading module, a low-pass filter, a combing weight generation module, a coefficient estimation module, a synchronization control channel interference canceller module, etc. The geometry factor processing module determines a geometry factor for the channel over which signals are transmitted to the wireless receiver, the geometry factor being a measure of the ratio of total transmitted power received by the wireless receiver to total interference plus noise power at the wireless receiver. One or more of the receiver signal processing modules are reconfigurable based on the geometry factor.

摘要翻译： 基于信道几何形式启用无线接收机的自适应重新配置。 根据实施例，无线接收机包括几何因子处理模块和信号处理模块，例如， 例如但不限于SIR估计模块，功率估计模块，解扩散模块，低通滤波器，组合权重生成模块，系数估计模块，同步控制信道干扰消除模块等。几何因子 处理模块确定信号被传输到无线接收器的信道的几何因子，几何因子是由无线接收机接收的总发射功率与无线接收机处的总干扰加上噪声功率的比率的度量。 接收机信号处理模块中的一个或多个可以基于几何因子来重新配置。

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。

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。

公开(公告)号：US20090149147A1

公开(公告)日：2009-06-11

申请号：US12107623

申请日：2008-04-22

申请人： Elias Jonsson ,  Douglas A. Cairns ,  Kazuyoshi Uesaka ,  Hiroaki Watabe

发明人： Elias Jonsson ,  Douglas A. Cairns ,  Kazuyoshi Uesaka ,  Hiroaki Watabe

IPC分类号： H04B1/10

CPC分类号： H04B1/712 ,  H04B1/7097 ,  H04B2201/709727

摘要： A mobile receiver having a multi-mode interference suppression function and a way to estimate its speed utilizes a parametric approach to interference suppression at high speeds, and a nonparametric approach at low speeds. In particular, if the mobile receiver is currently operating in a nonparametric mode and its speed exceeds a first predetermined threshold, the mobile receiver switches to a parametric mode. Conversely, if the mobile receiver is currently in parametric mode and its speed is less than a second predetermined threshold, the mobile receiver switches to nonparametric mode. In one embodiment, the speed may be estimated by a Doppler frequency in the received signal, and the thresholds are Doppler frequencies. In one embodiment, the first and second thresholds are different, creating a hysteresis in the mode switching.

摘要翻译： 具有多模式干扰抑制功能的移动接收机和估计其速度的方法利用高速干扰抑制的参数化方法和低速度的非参数方法。 特别地，如果移动接收机当前正在以非参数模式操作并且其速度超过第一预定阈值，则移动接收机切换到参数模式。 相反，如果移动接收机当前处于参数模式并且其速度小于第二预定阈值，则移动接收机切换到非参数模式。 在一个实施例中，可以通过接收信号中的多普勒频率来估计速度，并且阈值是多普勒频率。 在一个实施例中，第一和第二阈值是不同的，在模式切换中产生迟滞。

公开(公告)号：US08295417B2

公开(公告)日：2012-10-23

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。