公开(公告)号：US07702355B2

公开(公告)日：2010-04-20

申请号：US11305128

申请日：2005-12-19

申请人： Elias Jonsson ,  Torgny Palenius

发明人： Elias Jonsson ,  Torgny Palenius

IPC分类号： H04B7/00

CPC分类号： H04W48/20 ,  H04W4/06

摘要： Cells from which to receive information transmitted on a traffic channel that is not subject to power control in a cellular radio communications system are selected. Selection involves, for each of a plurality of candidate cells, using an offset value that indicates a relationship between a pilot channel transmission power and the traffic channel transmission power associated with the candidate cell to determine a value of quality indicative of power of a signal transmitted on the traffic channel associated with the candidate cell; and selecting, based on the values of quality indicative of power of a signal transmitted on the traffic channel, a number, N, of cells from the plurality of candidate cells.

摘要翻译： 选择在蜂窝无线电通信系统中接收在不进行功率控制的业务信道上发送的信息的小区。 选择涉及对于多个候选小区中的每个候选小区，使用指示导频信道发送功率与与候选小区相关联的业务信道发送功率之间的关系的偏移值来确定指示发送的信号的功率的质量的值 在与所述候选小区相关联的业务信道上; 以及基于指示在所述业务信道上发送的信号的功率的质量的值来选择来自所述多个候选小区的小区的数量N。

公开(公告)号：US20100039972A1

公开(公告)日：2010-02-18

申请号：US12296444

申请日：2007-04-03

申请人： Xiaohui Wang ,  Elias Jonsson

发明人： Xiaohui Wang ,  Elias Jonsson

IPC分类号： H04B7/005 ,  H04W52/00 ,  H04B17/00

CPC分类号： H04W52/44 ,  H04W52/12 ,  H04W52/20 ,  H04W52/24

摘要： A power level of signals transmitted in a wireless communications system under a first or a second scrambling code, is controlled in an inner power control loop, where a quality measure is repetitively estimated and control commands generated from the quality measure and a quality measure reference value, which in an outer power control loop is adjusted in dependence on a performance level calculated for signals received during a time interval. A first value is adjusted in dependence on a performance level for time intervals with all signals transmitted under the first scrambling code and used during such time intervals. A second value is adjusted in dependence on a performance level for time intervals with at least some signals transmitted under the second scrambling code and used during at least a part of such time intervals.

摘要翻译： 在第一或第二扰码下在无线通信系统中发送的信号的功率电平在内部功率控制环路中被控制，其中重复地估计质量测量值，并且从质量测量和质量测量参考值产生的控制命令 ，其在外部功率控制环路中根据在时间间隔期间接收的信号计算的性能水平来调整。 根据在第一扰码下传输的所有信号的时间间隔的性能水平来调整第一值并且在这样的时间间隔期间使用第一值。 根据具有至少一些在第二扰码下传送的信号的时间间隔的性能水平来调整第二值，并且在这样的时间间隔的至少一部分期间使用第二值。

公开(公告)号：US20090304132A1

公开(公告)日：2009-12-10

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。

公开(公告)号：US07561637B2

公开(公告)日：2009-07-14

申请号：US10557137

申请日：2004-04-09

申请人： Elias Jonsson ,  Johan Nilsson ,  Bengt Lindoff

发明人： Elias Jonsson ,  Johan Nilsson ,  Bengt Lindoff

IPC分类号： H03K9/00

CPC分类号： H04L25/0226 ,  H04L5/023 ,  H04L25/0228 ,  H04L25/067 ,  H04W52/16 ,  H04W52/362

摘要： A method of determining a channel estimate of a first transmission channel in a communications system. The method comprises deriving a first set of channel estimates from symbols received through said first transmission channel; deriving a second set of channel estimates from symbols received through a second transmission channel in the communications system; determining a scale factor between the first and second sets of channel estimates from a least squares error criterion; and determining the channel estimate of the first transmission channel as a channel estimate of the second transmission channel scaled by the determined scale factor.

摘要翻译： 一种确定通信系统中的第一传输信道的信道估计的方法。 该方法包括从通过所述第一传输信道接收的符号导出第一组信道估计; 在通信系统中通过第二传输信道接收的符号导出第二组信道估计; 从最小二乘误差准则确定第一和第二组信道估计之间的比例因子; 以及将所述第一传输信道的信道估计确定为由所确定的比例因子缩放的所述第二传输信道的信道估计。

公开(公告)号：US07558314B2

公开(公告)日：2009-07-07

申请号：US10527896

申请日：2003-08-29

申请人： Elias Jonsson

发明人： Elias Jonsson

IPC分类号： H04B1/707

CPC分类号： H04B1/7075 ,  H04B1/70755 ,  H04B1/70775

摘要： The present invention relates to a method (and corresponding device) of detecting a first signal in a received signal using a pattern, the received signal comprising at least one signal group, each signal group comprising a number of signal symbols, the pattern comprising at least one pattern group, each pattern group comprising at least a number of pattern symbols, wherein the method comprises the steps of for each signal group multiplying each signal symbol with a corresponding pattern symbol of a pattern group and deriving a sum of the products of multiplication, applying a weight factor of one or more weight factors to each sum giving a weighted sum, where said one or more weight factors are selected to preserve an orthogonality relation of said pattern symbols of the least one pattern group, and determining if a signal is detected or not based on said one or more weighted sums.

摘要翻译： 本发明涉及一种使用模式检测接收信号中的第一信号的方法（和相应的装置），所述接收信号包括至少一个信号组，每个信号组包括多个信号符号，所述图案至少包括 每个图案组包括至少多个图案符号，其中所述方法包括以下步骤：对于每个信号组，将每个信号符号与模式组的相应模式符号相乘，并导出乘法乘积的和， 对给予加权和的每个总和应用一个或多个加权因子的权重因子，其中选择所述一个或多个权重因子以保持所述至少一个模式组的所述模式符号的正交关系，并且确定是否检测到信号 或者不基于所述一个或多个加权和。

公开(公告)号：US07555077B2

公开(公告)日：2009-06-30

申请号：US10527366

申请日：2003-08-23

申请人： Elias Jonsson

发明人： Elias Jonsson

IPC分类号： H04B7/10

CPC分类号： H04B1/7113 ,  H04B1/7117

摘要： A method for adaptively scheduling activation of a path-searcher for a mobile terminal operative in a telecommunication system. The mobile terminal is capable of receiving multi-path signals originating from a scattered signal from a transmitter of at least one base station in the telecommunication system. The time lag between consecutive path-searcher activations is according to the method determined based on a value of the power delay profile discrepancy between two consecutive power delay profiles. The power delay profiles are derived from at least a subset of the powers of signals received at different delays during the path-searcher activation.

摘要翻译： 一种用于对在电信系统中操作的移动终端自适应地调度激活路径搜索器的方法。 移动终端能够从电信系统中的至少一个基站的发射机接收源自散射信号的多径信号。 根据基于两个连续功率延迟曲线之间的功率延迟曲线差异的值确定的方法，连续路径搜索器激活之间的时间延迟。 功率延迟分布从路径搜索器激活期间以不同延迟接收的信号的功率的至少一个子集导出。

公开(公告)号：US07539240B2

公开(公告)日：2009-05-26

申请号：US10800167

申请日：2004-03-12

申请人： Douglas A. Cairns ,  Gregory E. Bottomley ,  Yi-Pin Eric Wang ,  Tracy L. Fulghum ,  Elias Jonsson

发明人： Douglas A. Cairns ,  Gregory E. Bottomley ,  Yi-Pin Eric Wang ,  Tracy L. Fulghum ,  Elias Jonsson

IPC分类号： H04B15/00

CPC分类号： H04B1/712 ,  H04B2201/709727

摘要： Exemplary received signal processing may be based on maintaining a model of received signal impairment correlations, wherein each term of the model is updated periodically or as needed based on measuring impairments for a received signal of interest. An exemplary model comprises an interference impairment term scaled by a first model fitting parameter, and a noise impairment term scaled by a second model fitting parameters. The model terms may be maintained based on current channel estimates and delay information and may be fitted to measured impairment by adapting the model fitting parameters based on the measured impairment. The modeled received signal impairment correlations may be used to compute RAKE combining weights for received signal processing, or to compute Signal-to-Interference (SIR) estimates. Combined or separate models may be used for multiple received signals. As such, the exemplary modeling is extended to soft handoff, multiple antennas, and other diversity situations.

摘要翻译： 示例性的接收信号处理可以基于维持接收信号损害相关的模型，其中基于感兴趣的接收信号的测量损伤，模型的每个项被周期性地或根据需要更新。 示例性模型包括由第一模型拟合参数缩放的干扰损害项和由第二模型拟合参数缩放的噪声损伤项。 模型条款可以根据当前的渠道估计和延迟信息进行维护，并且可以通过根据测量的损失调整模型拟合参数来适应测量的损益。 建模的接收信号损害相关可用于计算接收信号处理的RAKE组合权重，或用于计算信号与干扰（SIR）估计。 组合或分离的模型可用于多个接收信号。 因此，示例性建模被扩展到软切换，多个天线和其他分集情况。

公开(公告)号：US20090041163A1

公开(公告)日：2009-02-12

申请号：US12065508

申请日：2006-08-31

申请人： Elias Jonsson ,  Marten Myrehed

发明人： Elias Jonsson ,  Marten Myrehed

IPC分类号： H04L27/06

CPC分类号： H04B1/7113 ,  H04B1/7117 ,  H04B2201/70702 ,  H04B2201/70707 ,  H04B2201/709727

摘要： Multipath components of transmitted data symbols are received with individual delays and processed by a RAKE having a number of fingers. A delay profile indicating magnitudes for a first number of delay values is provided. Estimated magnitudes for a second number of delay values located between the first number of delay values are calculated by interpolation, and a combined delay profile is provided by combining the magnitudes for the first and second number of delay values. Delay values for peaks in the combined delay profile are determined, and a number of peak delay values (P1, P2, P) comprising the largest peak are selected from the combined delay profile. At least some of the selected peak delay values are provided to the RAKE and assigned to the fingers. This allows a reduction of current consumption and dye area, while still providing delay values with sufficient resolution for the RAKE.

摘要翻译： 所传输的数据符号的多路径分量被接收具有单独的延迟并由具有多个指状物的RAKE处理。 提供了指示第一数量的延迟值的幅度的延迟分布。 通过内插计算位于第一数量的延迟值之间的第二数量的延迟值的估计幅度，并且通过组合第一和第二数量的延迟值的幅度来提供组合的延迟分布。 确定组合延迟分布中的峰值的延迟值，并从组合的延迟分布中选择包括最大峰值的峰值延迟值（P1，P2，P）的数目。 所选择的峰值延迟值中的至少一些被提供给RAKE并被分配给手指。 这允许减少电流消耗和染色面积，同时仍然为RAKE提供足够的分辨率的延迟值。

公开(公告)号：US07466658B2

公开(公告)日：2008-12-16

申请号：US10523987

申请日：2003-07-03

申请人： Andreas Cedergren ,  Christer Ostberg ,  Elias Jonsson ,  Jonas Linde

发明人： Andreas Cedergren ,  Christer Ostberg ,  Elias Jonsson ,  Jonas Linde

IPC分类号： H04L27/14

CPC分类号： H04L1/0047 ,  H04L1/20 ,  H04L25/0202

摘要： Coded digital data symbols sent from a transmitter through a transmission channel of a communications network are received in a receiver. An estimate, represented by a first number of bits, of a sent data symbol is calculated, and a second number of bits, lower than the first number, is selected from the estimate to achieve a rounded estimate represented by the second number of bits. The rounded estimate is decoded to achieve a decoded data symbol. A target value for a block error rate of the transmission channel is received from the network; and the second number of bits is selected in dependence on the target block error rate value. Thus an optimal rounded estimate is provided in most situations, and the method can be performed with the limited computational resources of a terminal.

摘要翻译： 通过通信网络的传输信道从发射机发送的编码数字数据符号被接收在接收机中。 计算由发送数据符号的第一位数表示的估计，并且从估计中选择低于第一数目的第二数目的比特，以实现由第二比特数表示的舍入估计。 舍入的估计被解码以实现解码的数据符号。 从网络接收传输信道的块错误率的目标值; 并且根据目标块错误率值选择第二位数。 因此，在大多数情况下提供了最佳舍入估计，并且该方法可以用终端的有限计算资源来执行。

公开(公告)号：US20080291978A1

公开(公告)日：2008-11-27

申请号：US11751109

申请日：2007-05-21

申请人： Elias Jonsson ,  Yi-Pin Eric Wang ,  Gregory E. Bottomley ,  Stephen J. Grant

发明人： Elias Jonsson ,  Yi-Pin Eric Wang ,  Gregory E. Bottomley ,  Stephen J. Grant

IPC分类号： H04B1/76 ,  H04B1/69

CPC分类号： H04B1/712 ,  H04B7/0634 ,  H04B2201/709727

摘要： A parametric form of G-Rake and chip equalization for closed-loop transmit diversity is provided, that accounts for impairment correlation between transmit antennas. In a closed-loop transmit diversity system, the base station transmits a signal from two or more antennas, using one of a predetermined set of relative phase offsets at one of the antennas. The parametric estimation of the impairment or data covariance is performed by summing terms, including a term for each possible phase offset. The terms are weighted by fitting parameters. The fitting parameters are jointly solved by fitting the impairment or data covariance estimate to a measured impairment or data covariance. In another aspect, a measured impairment covariance is formed by exploiting a special relationship between the pilot channels of the different transmit antennas.

摘要翻译： 提供了用于闭环发射分集的G-Rake和码片均衡的参数形式，其考虑了发射天线之间的损害相关性。 在闭环发射分集系统中，基站使用在天线之一处的预定相对相位偏移集合中的一个从两个或多个天线发射信号。 损伤或数据协方差的参数估计是通过求和术语来执行的，包括每个可能的相位偏移的项。 这些术语通过拟合参数加权。 拟合参数通过将损伤或数据协方差估计拟合为测量的损伤或数据协方差来共同解决。 在另一方面，通过利用不同发射天线的导频信道之间的特殊关系来形成测量的损害协方差。