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1. 发明申请

WO2008031761A1 METHOD AND APPARATUS FOR EXTENDED LEAST SQUARES ESTIMATION FOR GENERALIZED RAKE RECEIVER PARAMETERS USING MULTIPLE BASE STATIONS 审中-公开
标题翻译：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
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , CAIRNS, Douglas A. , BOTTOMLEY, Gregory E. , WANG, Yi-Pin Eric
发明人： CAIRNS, Douglas A. , BOTTOMLEY, Gregory E. , WANG, Yi-Pin Eric
IPC分类号： H04B1/707
CPC分类号： H04B1/712 , H04B2201/709727
摘要： 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.
摘要翻译：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。

2. 发明申请

WO2009147003A1 METHOD AND APPARATUS FOR EFFICIENT ESTIMATION OF INTERFERENCE IN A WIRELESS RECEIVER 审中-公开
标题翻译：用于有效估计无线接收机干扰的方法和装置
公开(公告)号：WO2009147003A1
公开(公告)日：2009-12-10
申请号：PCT/EP2009/055773
申请日：2009-05-13
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , CAIRNS, Douglas A. , BOTTOMLEY, Gregory E. , FULGHUM, Tracy , JONSSON, Elias , CEDERGREN, Andreas
发明人： CAIRNS, Douglas A. , BOTTOMLEY, Gregory E. , FULGHUM, Tracy , JONSSON, Elias , CEDERGREN, Andreas
IPC分类号： H04B1/707
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。

3. 发明申请

WO2008154653A2 EFFICIENT METHOD FOR FORMING AND SHARING IMPAIRMENT COVARIANCE MATRIX 审中-公开
标题翻译：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
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , WANG, Yi-ping Eric , ERIKSSON, Hakan Bengt , CAIRNS, Douglas A.
发明人： WANG, Yi-ping Eric , ERIKSSON, Hakan Bengt , CAIRNS, Douglas A.
IPC分类号： H04Q7/38
CPC分类号： H04L25/0242 , H04B1/71052 , H04B1/712 , H04B2201/709727 , H04L25/0208
摘要： 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.
摘要翻译：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。

4. 发明申请

WO2009074476A1 SPEED-BASED, HYBRID PARAMETRIC/NON-PARAMETRIC EQUALIZATION 审中-公开
标题翻译：基于速度，混合参数/非参数均衡
公开(公告)号：WO2009074476A1
公开(公告)日：2009-06-18
申请号：PCT/EP2008/066518
申请日：2008-12-01
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , CAIRNS, Douglas A. , JONSSON, Elias , UESAKA, Kazuyoshi , WATABE, Hiroaki
发明人： CAIRNS, Douglas A. , JONSSON, Elias , UESAKA, Kazuyoshi , WATABE, Hiroaki
IPC分类号： H04B1/707
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。

5. 发明申请

WO2011067716A2 METHOD AND APPARATUS FOR EFFICIENT AMLD MATRIX COMPUTATIONS 审中-公开
标题翻译：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
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CAIRNS, Douglas A. , BOTTOMLEY, Gregory E. , JONSSON, Elias
发明人： CAIRNS, Douglas A. , BOTTOMLEY, Gregory E. , JONSSON, Elias
IPC分类号： H04L25/03
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。

6. 发明申请

WO2011036620A2 CHANNEL GEOMETRY DETECTOR 审中-公开
标题翻译：通道几何探测器
公开(公告)号：WO2011036620A2
公开(公告)日：2011-03-31
申请号：PCT/IB2010/054240
申请日：2010-09-20
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CAIRNS, Douglas A. , NIEWCZAS, Jaroslaw , MURATA, Joshitaka , JONSSON, Elias
发明人： CAIRNS, Douglas A. , NIEWCZAS, Jaroslaw , MURATA, Joshitaka , JONSSON, Elias
IPC分类号： H04B1/707
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 hut 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：基于信道几何结构启用无线接收机的自适应重新配置。根据一个实施例，无线接收机包括几何因子处理模块和信号处理模块，例如无线接收器。诸如但不限于SIR估计模块，功率估计模块，解扩模块，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器模块等。几何因子处理模块确定信号传输到无线接收机的信道的几何因子，几何因子是无线接收机接收到的总发射功率与无线接收机处的总干扰加噪声功率之比的度量。一个或多个接收器信号，处理模块可根据几何因素进行重新配置。

7. 发明申请

WO2011073914A1 DATA TO PILOT POWER RATIO ESTIMATION 审中-公开
标题翻译：数据到引航功率比估计
公开(公告)号：WO2011073914A1
公开(公告)日：2011-06-23
申请号：PCT/IB2010/055821
申请日：2010-12-15
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CAIRNS, Douglas A.
发明人： CAIRNS, Douglas A.
IPC分类号： H04B1/707
CPC分类号： H04B1/707 , H04B2201/70701
摘要： A CDMA receiver computes an accurate estimate of the data to pilot power ratio. First, a biased estimate of the data to pilot power ratio is obtained from the data and pilot channels. A multiplicative correction factor is then computed from the pilot channel, and applied to the biased data to pilot power ratio estimate. This factor is based on the biased estimate and on the SINR of the pilot channel. This SINR can be calculated according to different methods.
摘要翻译： CDMA接收机计算出数据对导频功率比的准确估计。首先，从数据和导频信道获得数据对导频功率比的有偏估计。然后从导频信道计算乘法校正因子，并将其应用于偏置数据到导频功率比估计。这个因素是基于有偏估计和导频信道的SINR。该SINR可以根据不同的方法计算。

8. 发明申请

WO2011004354A1 METHOD OF CLOSED LOOP POWER CONTROL ADJUSTED BY SELF-INTERFERENCE 审中-公开
标题翻译：由自干扰调节的闭环功率控制方法
公开(公告)号：WO2011004354A1
公开(公告)日：2011-01-13
申请号：PCT/IB2010/053164
申请日：2010-07-09
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CAIRNS, Douglas A.
发明人： CAIRNS, Douglas A.
IPC分类号： H04W52/12 , H04B17/00 , H04W52/54 , H04W52/14 , H04W52/28
CPC分类号： H04W52/286 , H04B17/364 , H04W52/12 , H04W52/146 , H04W52/241 , H04W52/243 , H04W52/343 , H04W52/54 , H04W52/58
摘要： A method and apparatus for controlling the transmit power of a mobile device in a mobile communication network takes the level of self-interference into account to perform inner-loop power control. For normal inner-loop power control, a signal quality estimate is compared to a signal quality target and power control commands are generated based on the comparison. When self-interference is the dominant impairment in the received signal, a ''fast break" is introduced to change inner-loop power control command generation The amount of self-interference is determined based on the delay spread of the channel.
摘要翻译：用于控制移动通信网络中的移动设备的发射功率的方法和装置考虑自干扰水平以执行内环功率控制。对于正常的内环功率控制，将信号质量估计与信号质量目标进行比较，并且基于比较生成功率控制命令。当自干扰是接收信号的主要损害时，引入“快速断点”来改变内环功率控制命令生成根据信道的延迟扩展确定自干扰量。

9. 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

10. 发明申请

WO2010097397A1 METHOD AND APPARATUS FOR ALLOCATING PROCESSING DELAYS IN MULTI-CARRIER SYSTEMS 审中-公开
标题翻译：在多载波系统中分配处理延迟的方法和装置
公开(公告)号：WO2010097397A1
公开(公告)日：2010-09-02
申请号：PCT/EP2010/052311
申请日：2010-02-24
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CAIRNS, Douglas A. , JONSSON, Elias , DRUGGE, Oskar
发明人： CAIRNS, Douglas A. , JONSSON, Elias , DRUGGE, Oskar
IPC分类号： H04L5/02
CPC分类号： H04L25/03019 , H04B1/7115 , H04B1/7117 , H04L25/0206 , H04L2025/03414
摘要： A multi-corner 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 carrier, the receiver allocates one or more additional processing delays In one embodiment, tho additional processing delays are allocated to the dispersive carriers based on SIR.
摘要翻译：这里描述了一个多角度线性均衡接收器，例如RAKE接收器或芯片均衡接收器。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。对于色散载体，接收机分配一个或多个附加的处理延迟。在一个实施例中，根据SIR将额外的处理延迟分配给色散载波。

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