公开(公告)号：US07382821B2

公开(公告)日：2008-06-03

申请号：US11626728

申请日：2007-01-24

申请人： Roozbeh Atarius ,  Torsten J. Carlsson ,  Håkan B. Eriksson ,  Kjell B. Gustafsson ,  Torgny Palenius ,  Christer Östberg

发明人： Roozbeh Atarius ,  Torsten J. Carlsson ,  Håkan B. Eriksson ,  Kjell B. Gustafsson ,  Torgny Palenius ,  Christer Östberg

IPC分类号： H04B1/00

CPC分类号： H04B1/7115 ,  H04B1/7093

摘要： A searcher uses an input signal, and for example, a matched filter to generate a first set of candidate paths. A selector uses the input signal and the first set of candidate paths to generate a second set of paths. The second set of paths is used to configure the fingers of a RAKE receiver. According to one aspect of the invention, the first set of candidate paths contains M paths, and the second stage uses M correlators to generate a set of M correlation values. The second stage uses the M correlation values to select N paths that are used to configure the N fingers of the RAKE receiver. According to another aspect of the invention, the first set of candidate paths contains M paths, and the second stage uses a multiple of M correlators to track the M paths and generate a set of M estimates. The second stage uses the M estimates to select N paths that are used to configure the N fingers of the RAKE receiver. According to another aspect of the invention, the selector can generate new sets of N paths while the searcher is either active or inactive. The receiver can use a quality signal or a counter to notify the searcher and/or the selector to generate new sets of paths. The selector decreases the need to continuously run the matched filter. The receiver can re-configure the fingers without having to search for new paths. The receiver can also find paths that are uncorrelated and less susceptible to fading.

摘要翻译： 搜索者使用输入信号，例如，匹配滤波器来生成第一组候选路径。 选择器使用输入信号和第一组候选路径来生成第二组路径。 第二组路径用于配置RAKE接收机的手指。 根据本发明的一个方面，第一组候选路径包含M个路径，第二阶段使用M个相关器来生成一组M个相关值。 第二级使用M个相关值来选择用于配置RAKE接收机的N个手指的N个路径。 根据本发明的另一方面，第一组候选路径包含M个路径，并且第二阶段使用多个M个相关器来跟踪M个路径并生成一组M个估计。 第二阶段使用M个估计来选择用于配置RAKE接收机的N个手指的N个路径。 根据本发明的另一方面，当搜索者处于活动或不活动状态时，选择器可以生成新的N个路径集合。 接收机可以使用质量信号或计数器来通知搜索者和/或选择器来生成新的路径集合。 选择器减少了连续运行匹配滤波器的需要。 接收机可以重新配置手指，而无需搜索新的路径。 接收机还可以找到不相关的路径，并且不易受衰落影响。

公开(公告)号：US07184462B1

公开(公告)日：2007-02-27

申请号：US09204370

申请日：1998-12-04

申请人： Roozbeh Atarius ,  Torsten J. Carlsson ,  H{dot over (a)}kan B. Eriksson ,  Kjell B. Gustafsson ,  Torgny Palenius ,  Christer Östberg

发明人： Roozbeh Atarius ,  Torsten J. Carlsson ,  H{dot over (a)}kan B. Eriksson ,  Kjell B. Gustafsson ,  Torgny Palenius ,  Christer Östberg

IPC分类号： H04B1/00

CPC分类号： H04B1/7115 ,  H04B1/7093

摘要： A searcher uses an input signal, and for example, a matched filter to generate a first set of candidate paths. A selector uses the input signal and the first set of candidate paths to generate a second set of paths. The second set of paths is used to configure the fingers of a RAKE receiver. According to one aspect of the invention, the first set of candidate paths contains M paths, and the second stage uses M correlators to generate a set of M correlation values. The second stage uses the M correlation values to select N paths that are used to configure the N fingers of the RAKE receiver. According to another aspect of the invention, the first set of candidate paths contains M paths, and the second stage uses a multiple of M correlators to track the M paths and generate a set of M estimates. The second stage uses the M estimates to select N paths that are used to configure the N fingers of the RAKE receiver. According to another aspect of the invention, the selector can generate new sets of N paths while the searcher is either active or inactive. The receiver can use a quality signal or a counter to notify the searcher and/or the selector to generate new sets of paths. The selector decreases the need to continuously run the matched filter. The receiver can re-configure the fingers without having to search for new paths. The receiver can also find paths that are uncorrelated and less susceptible to fading.

摘要翻译： 搜索者使用输入信号，例如，匹配滤波器来生成第一组候选路径。 选择器使用输入信号和第一组候选路径来生成第二组路径。 第二组路径用于配置RAKE接收机的手指。 根据本发明的一个方面，第一组候选路径包含M个路径，第二阶段使用M个相关器来生成一组M个相关值。 第二级使用M个相关值来选择用于配置RAKE接收机的N个手指的N个路径。 根据本发明的另一方面，第一组候选路径包含M个路径，并且第二阶段使用多个M个相关器来跟踪M个路径并生成一组M个估计。 第二阶段使用M个估计来选择用于配置RAKE接收机的N个手指的N个路径。 根据本发明的另一方面，当搜索者处于活动或不活动状态时，选择器可以生成新的N个路径集合。 接收机可以使用质量信号或计数器来通知搜索者和/或选择器来生成新的路径集合。 选择器减少了连续运行匹配滤波器的需要。 接收机可以重新配置手指，而无需搜索新的路径。 接收机还可以找到不相关的路径，并且不易受衰落影响。

公开(公告)号：US06373882B1

公开(公告)日：2002-04-16

申请号：US09187002

申请日：1998-11-06

申请人： Roozbeh Atarius ,  Torsten Carlsson ,  Håkan Eriksson ,  Kjell Gustafsson ,  Torgny Palenius ,  Christer Östberg

发明人： Roozbeh Atarius ,  Torsten Carlsson ,  Håkan Eriksson ,  Kjell Gustafsson ,  Torgny Palenius ,  Christer Östberg

IPC分类号： H04B1500

CPC分类号： H04B1/7115 ,  H04B2201/70707

摘要： The present invention provides a system and method for reducing the power consumed by a RAKE receiver. In exemplary embodiments of the present invention, an environment variation estimator is implemented in a CDMA mobile station. The environment variation estimator is connected to the searcher of the RAKE receiver and provides an estimate of the rate at which the mobile station's environment is changing. By providing an estimate of the rate of change of the mobile station's environment, the duty cycle of the searcher can be optimized, thereby reducing the overall power consumed by the receiver. By also providing the estimate to the RAKE fingers, channel tracking can be improved.

摘要翻译： 本发明提供了一种用于减少RAKE接收机消耗的功率的系统和方法。 在本发明的示例性实施例中，在CDMA移动台中实现环境变化估计器。 环境变化估计器连接到RAKE接收机的搜索者，并提供移动台环境正在改变的速率的估计。 通过提供移动台环境变化率的估计，可以优化搜索者的占空比，从而降低接收机消耗的总体功耗。 通过向RAKE手指提供估计，可以改善频道跟踪。

公开(公告)号：US06526035B1

公开(公告)日：2003-02-25

申请号：US09093315

申请日：1998-06-09

申请人： Roozbeh Atarius ,  Christer Östberg ,  Håkan B. Eriksson ,  Håkan Henningsson

发明人： Roozbeh Atarius ,  Christer Östberg ,  Håkan B. Eriksson ,  Håkan Henningsson

IPC分类号： H04B7216

CPC分类号： H04B1/707 ,  H04B7/2628

摘要： A receiver can identify the source of a signal from an unsynchronized source. The receiver has an antenna for receiving two signals. The receiver correlates the first signal with a code to find a first location in time, and correlates the second signal with the same code to find a second location in time. The receiver calculates a time difference between the first location in time and the second location in time and uses the time difference to identify the source of the two signals. A group of base stations or directional antennas use the same long code and synchronization codes. However, each source shifts the long code by a different amount so that for any two sources there is a unique difference between the shifts in the long code. Each source shifts a set of synchronization codes the same amount as the long code. The synchronization codes can be any short code that is relatively easy for the mobile station to detect. When the receiver receives the two signals, the receiver calculates the difference in the shifts. Because there is a unique difference for each pair of sources, the receiver can identify the source of a signal from an unsynchronized source without having to connect to the source to use a broadcast channel or control channel. The receiver can distinguish between different synchronized sources without any prior synchronization.

摘要翻译： 接收机可以识别来自不同步源的信号源。 接收器具有用于接收两个信号的天线。 接收器将第一信号与代码相关联以在时间上找到第一位置，并且将第二信号与相同代码相关以在时间上找到第二位置。 接收机计算时间上的第一位置和第二时间点之间的时间差，并使用时间差来识别两个信号的源。 一组基站或定向天线使用相同的长码和同步码。 然而，每个源将长码移动不同的量，使得对于任何两个源，长码中的移位之间存在唯一的差异。 每个源将一组同步码与长码相同。 同步码可以是移动台检测相对容易的任何短码。 当接收器接收到两个信号时，接收器计算出偏移量的差异。 因为每对源都有独特的差异，所以接收器可以识别来自不同步源的信号的源，而不必连接到源以使用广播信道或控制信道。 接收机可以区分不同的同步源，而无需任何先前的同步。

公开(公告)号：US07065130B1

公开(公告)日：2006-06-20

申请号：US09678165

申请日：2000-10-02

申请人： Roozbeh Atarius ,  Håkan Eriksson ,  Torgny Palenius ,  Christer Östberg ,  Torsten Carlsson ,  Kjell Gustafsson

发明人： Roozbeh Atarius ,  Håkan Eriksson ,  Torgny Palenius ,  Christer Östberg ,  Torsten Carlsson ,  Kjell Gustafsson

IPC分类号： H04B15/00 ,  H04K1/00 ,  H04L27/30

CPC分类号： H04B1/70758 ,  H04B1/70757 ,  H04B1/712

摘要： A method and system enables matched filters of a CDMA system to be simplified using a two stage search. A course stage and a fine stage jointly produce the location(s) of received signal path-rays. In a first stage, an oversampled digital signal is decimated, and the decimated signal is applied to a matched filter to eventually produce an approximate location. In a second stage, the oversampled signal is shifted based on the determined approximate location and then correlated to a generated code, and a more-exact location is selected from the outputs of the correlations. Alternatively, a shifted version of the generated code is correlated to the oversampled signal, and the more-exact location is selected from the outputs of those correlations.

摘要翻译： 一种方法和系统使得能够使用两级搜索来简化CDMA系统的匹配滤波器。 课程阶段和精细阶段共同产生接收到的信号路径射线的位置。 在第一阶段，抽取过采样的数字信号，并将抽取的信号施加到匹配滤波器以最终产生近似位置。 在第二阶段，过采样信号基于所确定的近似位置移位，然后与生成的代码相关，并且从相关的输出中选择更精确的位置。 或者，生成的代码的移位版本与过采样信号相关，并且从这些相关的输出中选择更精确的位置。

公开(公告)号：US07626956B2

公开(公告)日：2009-12-01

申请号：US10551892

申请日：2004-04-03

申请人： Torgny Palenius ,  Johan Hokfelt ,  Christer Östberg ,  Jan Wichert ,  Mikael Nilsson ,  Richard Ewald ,  Patrik Olofsson ,  Hákan Palm

发明人： Torgny Palenius ,  Johan Hokfelt ,  Christer Östberg ,  Jan Wichert ,  Mikael Nilsson ,  Richard Ewald ,  Patrik Olofsson ,  Hákan Palm

IPC分类号： H04B7/00

CPC分类号： H04W88/06 ,  H04W36/0088 ,  H04W36/14 ,  H04W56/0075 ,  H04W84/04

摘要： A method and apparatus for measurement event synchronization of a portable radio communication apparatus providing multiple radio access technologies, wherein an idle gap is identified between transceiver activities of a first radio access technology device, and an execute signal is sent to a second radio access technology device for initiating inter radio access technology measurements of the second radio access technology device, to be performed during the gap.

摘要翻译： 一种用于提供多种无线电接入技术的便携式无线电通信装置的测量事件同步的方法和装置，其中在第一无线电接入技术设备的收发机活动之间识别空闲间隙，并且将执行信号发送到第二无线电接入技术设备 用于启动在间隙期间执行的第二无线电接入技术设备的无线接入技术测量。

公开(公告)号：US07917113B2

公开(公告)日：2011-03-29

申请号：US10553082

申请日：2004-04-05

申请人： Torgny Palenius ,  Johan Hokfelt ,  Christer Östberg ,  Jan Wichert ,  Mikael Nilsson ,  Richard Ewald ,  Patrik Olofsson ,  H{dot over (a)}kan Palm

发明人： Torgny Palenius ,  Johan Hokfelt ,  Christer Östberg ,  Jan Wichert ,  Mikael Nilsson ,  Richard Ewald ,  Patrik Olofsson ,  H{dot over (a)}kan Palm

IPC分类号： H04W56/00 ,  H04W72/00 ,  H04W72/12

CPC分类号： H04W36/0088 ,  H04B7/2668 ,  H04B17/309 ,  H04B17/318 ,  H04B17/327 ,  H04B17/336 ,  H04B17/382 ,  H04W36/14 ,  H04W36/30 ,  H04W56/001 ,  H04W88/06 ,  H04W92/02

摘要： A method for synchronizing measurements in a mobile communication apparatus having a first active radio access means (100) adapted to communicate according to a first radio access technology (RAT) and at least a second passive radio access means (200) adapted to communicate according to a second RAT. A time reference common to the first and the second access means (100) is generated. At least one time schedule is obtained, said schedule indicating at least one time gap wherein the second access means (200) is allowed to be active. The activation time of the schedule is based on the common time reference. An arrangement adapted to generate the common time reference and the time schedule is also disclosed.

摘要翻译： 一种用于在具有适于根据第一无线电接入技术（RAT）进行通信的第一有源无线接入装置（100）和至少第二无源无线接入装置（200）的移动通信装置中同步测量的方法，所述至少第二无源无线接入装置适于根据 第二RAT。 产生对第一和第二存取装置（100）公用的时间参考。 获得至少一个时间表，所述调度表示允许第二访问装置（200）处于活动状态的至少一个时间间隙。 计划的激活时间是基于公共时间参考。 还公开了适于生成公共时间基准和时间表的布置。

公开(公告)号：US07269421B2

公开(公告)日：2007-09-11

申请号：US10507971

申请日：2003-03-24

申请人： Torgny Palenius ,  Christer Östberg

发明人： Torgny Palenius ,  Christer Östberg

IPC分类号： H04Q7/20

CPC分类号： H04W56/0005 ,  H04B7/2684 ,  H04W36/18 ,  H04W56/001 ,  H04W56/0015 ,  H04W92/10

摘要： The uplink transmission timing from a mobile communications device is defined with reference to the downlink reception timing of signals from a particular reference cell. When that reference cell is removed from the active set, there is defined a virtual reference cell, the timing of which is defined with reference to one or more of the cells remaining in the active set, such that the timing of this new virtual reference cell corresponds to the timing of the previous reference cell. The timing of the uplink transmission from the user equipment are then defined with reference to the new virtual reference cell, in the conventional way. This has the advantage that, following a soft handover, it is not necessary to adjust the timing of uplink transmissions from the user equipment.

摘要翻译： 参考来自特定参考小区的信号的下行链路接收定时来定义来自移动通信设备的上行链路传输定时。 当从活动集中移除该参考小区时，定义一个虚拟参考小区，其参考一个或多个保留在活动集中的小区来定义其定时，使得该新的虚拟参考小区的定时 对应于先前参考单元的定时。 然后以常规方式参考新的虚拟参考小区定义来自用户设备的上行链路传输的定时。 这具有以下优点：在软切换之后，不需要调整来自用户设备的上行链路传输的定时。

公开(公告)号：US20140004842A1

公开(公告)日：2014-01-02

申请号：US13996240

申请日：2011-12-12

申请人： Bengt Lindoff ,  Bo Lincoln ,  Johan Nilsson ,  Christer Östberg

发明人： Bengt Lindoff ,  Bo Lincoln ,  Johan Nilsson ,  Christer Östberg

IPC分类号： H04W8/18

CPC分类号： H04W8/183 ,  H04W88/06

摘要： A technique for managing activity states of at least two subscriptions in a terminal device is described. A method implementation of this technique performed in the terminal device comprises the steps of monitoring whether a first subscription is to transit or has transit from a first active state to a second active state while at least one second subscription is in a detached state, wherein the second active state is associated with a lower terminal activity than the first active state, if the result of the monitoring step is affirmative, waiting for a predetermined period of time, upon elapse of the predetermined period of time, if the first subscription is still in the second active state, triggering a transition of the first subscription from the second active state to an inactive state and initiating for the at least one second subscription a transition from a detached state to an inactive state.

摘要翻译： 描述了一种用于管理终端设备中的至少两个订阅的活动状态的技术。 在终端设备中执行的该技术的方法实现包括以下步骤：当至少一个第二订阅处于分离状态时，监视第一订阅是要转接还是从第一活动状态转移到第二活动状态，其中， 第二活动状态与比第一活动状态更低的终端活动相关联，如果监视步骤的结果是肯定的，则在经过预定时间段之后等待预定时间段，如果第一订阅仍然在 所述第二活动状态触发所述第一订阅从所述第二活动状态转换到非活动状态，并且针对所述至少一个第二订阅启动从分离状态到非活动状态的转变。

公开(公告)号：US07197063B2

公开(公告)日：2007-03-27

申请号：US10359857

申请日：2003-02-07

申请人： Andres Reial ,  Anders Ericsson ,  Christer Östberg ,  Robert Svensson ,  Johan Nilsson ,  Håkan Eriksson

发明人： Andres Reial ,  Anders Ericsson ,  Christer Östberg ,  Robert Svensson ,  Johan Nilsson ,  Håkan Eriksson

IPC分类号： H04B1/00

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

摘要： Method and system are disclosed for providing advanced RAKE delay control in wireless communications systems. The RAKE delay control method and system of the invention is capable of tracking presently known paths over time and merging the tracking results with new path searcher results. The invention is particularly suitable for devices where the resources (e.g., computational load, power) available for detecting the multipath components are limited. The result is a resource efficient architecture for positioning the RAKE fingers to best extract the signal power available in the channel and to utilize the inherent diversity due to the multipath nature of the signal.

摘要翻译： 公开了用于在无线通信系统中提供高级RAKE延迟控制的方法和系统。 本发明的RAKE延迟控制方法和系统能够随着时间跟踪目前已知的路径，并将跟踪结果与新的路径搜索器结果相结合。 本发明特别适用于可用于检测多路径分量的资源（例如，计算负载，功率）受限的设备。 结果是用于定位RAKE手指以最佳地提取信道中可用的信号功率并且由于信号的多径性质而利用固有分集的资源有效架构。