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    METHOD AND APPARATUS FOR EFFICIENT AMLD MATRIX COMPUTATIONS
    1.
    发明申请
    METHOD AND APPARATUS FOR EFFICIENT AMLD MATRIX COMPUTATIONS 审中-公开
    用于有效的AMLD矩阵计算的方法和设备

    公开(公告)号：WO2011067716A2

    公开(公告)日：2011-06-09

    申请号：PCT/IB2010/055505

    申请日：2010-11-30

    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  CAIRNS, Douglas A. ,  BOTTOMLEY, Gregory E. ,  JONSSON, Elias

    Inventor： CAIRNS, Douglas A. ,  BOTTOMLEY, Gregory E. ,  JONSSON, Elias

    IPC: H04L25/03

    CPC classification number: H04L25/03006 ,  H04B1/71057 ,  H04B2201/709727 ,  H04L25/03178 ,  H04L25/03203 ,  H04L25/03331 ,  H04L2025/03426

    Abstract: 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.

    Abstract translation: 用于辅助最大似然检测（AMLD）接收机的代码专用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实质上恒定的低速率矩阵 符号时期。 将高速率和低速率矩阵组合起来，为每个接收器级产生一个特定于代码的信道矩阵。 高速率矩阵包括加扰和扩频码信息，低速率矩阵包括净信道响应和组合权重的信息。 通过净信道响应的频域中的线性卷积并组合权重（具有零填充以避免循环卷积），然后将卷积变换到时域并提取矩阵元素，有效地计算低速率矩阵。 在组合权重在各个阶段不变的情况下，可以计算并且在多个AMLD接收器阶段中使用通用码特定信道矩阵。

    SIGNAL RECEPTION WITH ADJUSTABLE PROCESSING DELAY PLACEMENT
    2.
    发明申请
    SIGNAL RECEPTION WITH ADJUSTABLE PROCESSING DELAY PLACEMENT 审中-公开
    具有可调节处理延迟放置的信号接收

    公开(公告)号：WO2010109296A3

    公开(公告)日：2010-12-16

    申请号：PCT/IB2010000643

    申请日：2010-03-22

    Applicant: ERICSSON TELEFON AB L M ,  CAIRNS DOUGLAS A ,  UESAKA KAZUYOSHI ,  JONSSON ELIAS

    Inventor： CAIRNS DOUGLAS A ,  UESAKA KAZUYOSHI ,  JONSSON ELIAS

    IPC: H04B1/707 ,  H04L25/03

    CPC classification number: H04B1/7115 ,  H04B1/7117 ,  H04B2201/709727 ,  H04L25/0216

    Abstract: The placement of processing delays may be adjusted to facilitate signal reception. In an example embodiment, a composite signal having multiple signal images corresponding to multiple reception delays is received. A root-mean-square (RMS) delay spread is ascertained for the multiple reception delays that correspond to the multiple signal images of the composite signal. A set of temporal points is produced responsive to the RMS delay spread. Multiple processing delays are placed based on the set of temporal points. In different example implementations, the set of temporal points (e.g., of a grid) may be produced by adjusting a spacing between temporal points, by adjusting a total number of temporal points in the set, or by changing a center location of the set. The spacing and number of points may be adjusted responsive to the RMS delay spread. The center location may be adjusted responsive to at least one calculated delay.

    Abstract translation: 处理延迟的放置可以被调整以便于信号接收。 在示例实施例中，接收具有对应于多个接收延迟的多个信号图像的复合信号。 确定对应于复合信号的多个信号图像的多个接收延迟的均方根（RMS）延迟扩展。 响应RMS延迟扩展产生一组时间点。 基于该组时间点放置多个处理延迟。 在不同的示例实现中，可以通过调整时间点之间的间隔，通过调整该组中的时间点的总数，或者通过改变该组的中心位置来产生该组时间点（例如，网格的时间点）。 点的间距和数量可以根据RMS延迟扩展进行调整。 中心位置可以响应于至少一个计算的延迟而被调整。

    SIGNAL RECEPTION WITH ADJUSTABLE PROCESSING DELAY PLACEMENT
    3.
    发明申请
    SIGNAL RECEPTION WITH ADJUSTABLE PROCESSING DELAY PLACEMENT 审中-公开
    信号接收可调节处理延迟放置

    公开(公告)号：WO2010109296A2

    公开(公告)日：2010-09-30

    申请号：PCT/IB2010/000643

    申请日：2010-03-22

    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  CAIRNS, Douglas, A. ,  UESAKA, Kazuyoshi ,  JONSSON, Elias

    Inventor： CAIRNS, Douglas, A. ,  UESAKA, Kazuyoshi ,  JONSSON, Elias

    IPC: H04B1/707 ,  H04L25/03

    CPC classification number: H04B1/7115 ,  H04B1/7117 ,  H04B2201/709727 ,  H04L25/0216

    Abstract: The placement of processing delays may be adjusted to facilitate signal reception. In an example embodiment, a composite signal having multiple signal images corresponding to multiple reception delays is received. A root-mean-square (RMS) delay spread is ascertained for the multiple reception delays that correspond to the multiple signal images of the composite signal. A set of temporal points is produced responsive to the RMS delay spread. Multiple processing delays are placed based on the set of temporal points. In different example implementations, the set of temporal points (e.g., of a grid) may be produced by adjusting a spacing between temporal points, by adjusting a total number of temporal points in the set, or by changing a center location of the set. The spacing and number of points may be adjusted responsive to the RMS delay spread. The center location may be adjusted responsive to at least one calculated delay.

    Abstract translation: 可以调整处理延迟的布置以促进信号接收。 在示例实施例中，接收具有对应于多个接收延迟的多个信号图像的复合信号。 确定对应于复合信号的多个信号图像的多个接收延迟的均方根（RMS）延迟扩展。 响应于RMS延迟扩展产生一组时间点。 基于一组时间点放置多个处理延迟。 在不同的示例实现中，可以通过调整时间点之间的间隔，通过调整集合中的时间点的总数，或者通过改变集合的中心位置来产生时间点集合（例如，网格）。 响应于RMS延迟扩展可以调整点的间隔和数量。 可以响应于至少一个计算的延迟来调整中心位置。

    DELTA SIGMA CONVERTER INCORPORATING A MULTIPLIER
    4.
    发明申请
    DELTA SIGMA CONVERTER INCORPORATING A MULTIPLIER 审中-公开
    DELTA SIGMA转换器并入一个乘法器

    公开(公告)号：WO2002063777A2

    公开(公告)日：2002-08-15

    申请号：PCT/US2002/001995

    申请日：2002-01-24

    Applicant: ERICSSON INC. ,  FRALEIGH, Stephen ,  CAIRNS, Douglas, A.

    Inventor： FRALEIGH, Stephen ,  CAIRNS, Douglas, A.

    IPC: H03M7/32

    CPC classification number: H03M7/3015

    Abstract: A delta-sigma converter including a multiplier. The delta-sigma converter includes a feed-forward path and a feedback path providing a feedback signal. The converter output signal is multiplied in the feedback path by a mapping function, and the multiplied signal is mapped to a digital feedback signal having the same number of bits as the input signal. There is also provided a digital-to-analog converter including a delta-sigma converter consistent with the invention, and a method of multiplying a digital signal.

    Abstract translation: 包括乘法器的Δ-Σ转换器。 Δ-Σ转换器包括前馈路径和提供反馈信号的反馈路径。 转换器输出信号通过映射函数在反馈路径中相乘，并且相乘的信号被映射到具有与输入信号相同的位数的数字反馈信号。 还提供了包括与本发明一致的Δ-Σ转换器的数模转换器以及一种将数字信号相乘的方法。

    PHASE MODULATOR USING A FREQUENCY SYNTHESIZER
    5.
    发明申请
    PHASE MODULATOR USING A FREQUENCY SYNTHESIZER 审中-公开
    使用频率合成器的相位调制器

    公开(公告)号：WO0207401A3

    公开(公告)日：2002-07-18

    申请号：PCT/US0121565

    申请日：2001-07-09

    Applicant: ERICSSON INC ,  CAIRNS DOUGLAS A

    Inventor： CAIRNS DOUGLAS A

    IPC: H03C3/00 ,  H04L27/20 ,  H04L27/36

    CPC classification number: H04L27/206 ,  H04L27/364

    Abstract: A variable frequency synthesizer is used during generation of a phase-encoded signal. The reference signal input to the frequency synthesizer is not held stable and constant, but is instead deliberately varied to control the output of the frequency synthesizer. This varying reference signal, referred to as the phase reference signal, is derived form traditional inphase and quadrature signals, as modified by a phase distorter. The phase distorter applies a pre-distortion to the inphase and quadrature signals so as to compensate for band limiting effects of the frequency synthesizer. The signal transmitted is then based on the phase-encoded signal.

    Abstract translation: 在生成相位编码信号时使用可变频率合成器。 输入到频率合成器的参考信号不能保持稳定和恒定，而是有意地改变以控制频率合成器的输出。 被称为相位参考信号的这个变化的参考信号是由相位变形器修改的传统的同相和正交信号导出的。 相位变形器对同相和正交信号施加预失真，以补偿频率合成器的频带限制效应。 然后发送的信号基于相位编码信号。

    METHODS AND DEVICES FOR ALLOCATING SCRAMBLING CODES
    6.
    发明申请
    METHODS AND DEVICES FOR ALLOCATING SCRAMBLING CODES 审中-公开
    用于分配加扰代码的方法和设备

    公开(公告)号：WO2011059379A2

    公开(公告)日：2011-05-19

    申请号：PCT/SE2010/051193

    申请日：2010-11-03

    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  DRUGGE, Oskar ,  KAZMI, Muhammad ,  REIAL, Andres ,  CAIRNS, Douglas, A.

    Inventor： DRUGGE, Oskar ,  KAZMI, Muhammad ,  REIAL, Andres ,  CAIRNS, Douglas, A.

    IPC: H04B1/707 ,  H04J11/00

    CPC classification number: H04J11/005 ,  H04B1/70735 ,  H04B1/7083 ,  H04J11/0073 ,  H04J11/0076 ,  H04J11/0079 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0048 ,  H04L25/0226 ,  H04L25/03866 ,  H04L27/2655

    Abstract: 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.

    Abstract translation: 提供了方法和设备，由此可以以改进的方式设置扰码。 根据一个实施例，在用户设备中提供了一种用于生成第二扰码或第二扰码组的方法。 UE被配置用于多载波操作，在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上接收来自通用移动电信系统陆地无线电接入网络的下行链路传输。 该方法包括：确定与主载波上的第一小区相关联的第一扰码或第一扰码组; 以及使用定义第二扰码或第二扰码组与第一扰码或扰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，在未发送SCH的多载波场景中的辅小区上的UE的接收机中实现干扰抑制/消除处理，同时最小化在UTRAN系统中用于相邻小区的扰码的信令方面的开销需求 。 还描述了用于E-UTRAN的方法和设备。

    EFFICIENT METHOD FOR FORMING AND SHARING IMPAIRMENT COVARIANCE MATRIX
    9.
    发明申请
    EFFICIENT METHOD FOR FORMING AND SHARING IMPAIRMENT COVARIANCE MATRIX 审中-公开
    有效的方法来形成和共享损害性协方差矩阵

    公开(公告)号：WO2008154653A2

    公开(公告)日：2008-12-18

    申请号：PCT/US2008/066853

    申请日：2008-06-13

    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  WANG, Yi-ping Eric ,  ERIKSSON, Hakan Bengt ,  CAIRNS, Douglas A.

    Inventor： WANG, Yi-ping Eric ,  ERIKSSON, Hakan Bengt ,  CAIRNS, Douglas A.

    IPC: H04Q7/38

    CPC classification number: H04L25/0242 ,  H04B1/71052 ,  H04B1/712 ,  H04B2201/709727 ,  H04L25/0208

    Abstract: The technology comprises method(s) and apparatus for operating a telecommunications system. In its basic form the method comprises providing plural channelization codes for potential use by an uplink receiver; using unused channelization codes of the plural codes to generate an estimate of an impairment covariance matrix; and using the estimate of the impairment covariance matrix to form a processing parameter. For example, the processing parameter can be one or more weight values which, in turn, are can be used for generating a combined output signal.

    Abstract translation: 该技术包括用于操作电信系统的方法和装置。 在其基本形式中，该方法包括提供用于上行链路接收机的潜在用途的多个信道化码; 使用所述多个代码的未使用的信道化码来生成损害协方差矩阵的估计; 并使用损伤协方差矩阵的估计来形成处理参数。 例如，处理参数可以是一个或多个加权值，其又可以用于产生组合的输出信号。

    METHOD AND APPARATUS FOR EXTENDED LEAST SQUARES ESTIMATION FOR GENERALIZED RAKE RECEIVER PARAMETERS USING MULTIPLE BASE STATIONS
    10.
    发明申请
    METHOD AND APPARATUS FOR EXTENDED LEAST SQUARES ESTIMATION FOR GENERALIZED RAKE RECEIVER PARAMETERS USING MULTIPLE BASE STATIONS 审中-公开
    用于使用多个基站的广义RAKE接收机参数的扩展最小二乘估计的方法和装置

    公开(公告)号：WO2008031761A1

    公开(公告)日：2008-03-20

    申请号：PCT/EP2007/059362

    申请日：2007-09-07

    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  CAIRNS, Douglas A. ,  BOTTOMLEY, Gregory E. ,  WANG, Yi-Pin Eric

    Inventor： CAIRNS, Douglas A. ,  BOTTOMLEY, Gregory E. ,  WANG, Yi-Pin Eric

    IPC: H04B1/707

    CPC classification number: H04B1/712 ,  H04B2201/709727

    Abstract: Exemplary combining weight generation is based on estimating received signal impairment correlations using a weighted summation of interference impairment terms, such as an interference correlation matrix associated with a transmitting base station, and a noise impairment term, such as a noise correlation matrix, the impairment terms scaled by fitting parameters. The estimate is updated based on adapting the fitting parameters responsive to measured signal impairment correlations. The interference matrices are calculated from channel estimates and delay information, and knowledge of the receive filter pulse shape. Instantaneous values of the fitting parameters are determined by fitting the impairment correlation terms to impairment correlations measured at successive time instants and the fitting parameters are adapted at each time instant by updating the fitting parameters based on the instantaneous values.

    Abstract translation: 示例性组合权重生成是基于使用干扰损害项的加权求和来估计接收到的信号损害相关性，例如与发射基站相关联的干扰相关矩阵，以及诸如噪声相关矩阵之类的噪声损害项，损伤项 通过拟合参数进行缩放。 基于对测量的信号损伤相关性的适应参数进行修改，估计更新。 干扰矩阵由信道估计和延迟信息以及接收滤波器脉冲形状的知识计算。 拟合参数的瞬时值通过将损害相关项拟合到在连续时刻测量的损伤相关性来确定，并且通过基于瞬时值更新拟合参数，在每个时刻适应拟合参数。

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