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    Receiver and method for decoding of truncated data
    2.
    发明申请
    Receiver and method for decoding of truncated data 有权
    用于解码截断数据的接收器和方法

    公开(公告)号：US20060103587A1

    公开(公告)日：2006-05-18

    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： G09G5/00

    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。

    Orthogonal frequency division multiplex systems
    3.
    发明授权
    Orthogonal frequency division multiplex systems 失效
    正交频分复用系统

    公开(公告)号：US6088398A

    公开(公告)日：2000-07-11

    申请号：US877160

    申请日：1997-06-17

    申请人： Mattias Wahlqvist ,  Roger Larsson ,  Christer Ostberg

    发明人： Mattias Wahlqvist ,  Roger Larsson ,  Christer Ostberg

    IPC分类号： H04L25/03 ,  H04L27/26 ,  H04L5/26 ,  H04L25/08

    CPC分类号： H04L25/03834 ,  H04L27/2602

    摘要： A method and apparatus increase a maximum available bit rate on a single data link, in order to gain capacity within single cells. An orthogonal frequency division multiplex signal is filtered by a pulse shaping operation so as to suppress side lobes of the signal. This pulse shaping introduces known inter symbol interference (ISI) and loses orthogonality between subcarriers. However, a receiver utilizes the idea of overcoming ISI by applying equalization to the signal such that the loss of orthogonality is overcome.

    摘要翻译： 一种方法和装置在单个数据链路上增加最大可用比特率，以便增加单个小区内的容量。 通过脉冲整形操作对正交频分复用信号进行滤波，以抑制信号的旁瓣。 这种脉冲整形引入了已知的符号间干扰（ISI）并丢失了子载波之间的正交性。 然而，接收机利用通过对信号进行均衡来克服ISI的想法，从而克服正交性的损失。

    Method and Apparatus for Configuring a RAKE Receiver
    5.
    发明申请
    Method and Apparatus for Configuring a RAKE Receiver 有权
    用于配置RAKE接收机的方法和装置

    公开(公告)号：US20070116103A1

    公开(公告)日：2007-05-24

    申请号：US11626728

    申请日：2007-01-24

    申请人： Roozbeh Atarius ,  Torsten Carlsson ,  Hakan Eriksson ,  Kjell Gustafsson ,  Torgny Palenius ,  Christer Ostberg

    发明人： Roozbeh Atarius ,  Torsten Carlsson ,  Hakan Eriksson ,  Kjell Gustafsson ,  Torgny Palenius ,  Christer Ostberg

    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。

    Method for synchronization of transmitter and receiver at mobile radio system
    6.
    发明授权
    Method for synchronization of transmitter and receiver at mobile radio system 失效
    移动无线电系统发射机和接收机同步的方法

    公开(公告)号：US6084871A

    公开(公告)日：2000-07-04

    申请号：US836985

    申请日：1997-08-20

    申请人： Bo Engstrom ,  Mikael Isaksson ,  Roger Larsson ,  Sven-Rune Olofsson ,  Michael Unneback ,  Goran Oqvist ,  Christer Ostberg ,  Lennart Olsson

    发明人： Bo Engstrom ,  Mikael Isaksson ,  Roger Larsson ,  Sven-Rune Olofsson ,  Michael Unneback ,  Goran Oqvist ,  Christer Ostberg ,  Lennart Olsson

    IPC分类号： H04B7/26 ,  H04L7/08 ,  H04L27/26

    CPC分类号： H04L27/2602

    摘要： A method of a mobile radio system for synchronization a transmitter and receiver. The system relates to MC/DS-CDMA-system. In the system information is transmitted digitally in frames. For that purpose a data channel, a pilot channel and a synchronization channel are created. In the data channel the data blocks D0, D1, D2 etc are separated by a guard space .DELTA.. In the pilot channel, respective the synchronization channel, the information is arranged in blocks which are synchronous with each other. The repeating distance, A, of the pilot channel, corresponds to the length of one of the data blocks D0, D1, D2 etc. The repeating distance for the synchronization channel is S, corresponding to a number of blocks in the data channel. In the synchronization channel information is introduced into the blocks which indicates their relation to the data channel. The method in this way allows an identification of the position of the pilot channel, which indicates the position of the synchronization channel, at which a decoding of the information of the the synchronization channel appoints the position of the data channel.

    摘要翻译： PCT No.PCT / SE95 / 01382 Sec。 371日期1997年8月20日 102（e）日期1997年8月20日PCT 1995年11月21日PCT PCT。 公开号WO96 / 17455 日期1996年6月6日一种用于同步发射机和接收机的移动无线电系统的方法。 该系统涉及MC / DS-CDMA系统。 在系统信息中以数字方式传送信息。 为此，创建数据信道，导频信道和同步信道。 在数据通道中，数据块D0，D1，D2等被保护空间DELTA隔开。 在导频信道中，对应于同步信道，信息被排列成彼此同步的块。 导频信道的重复距离A对应于数据块D0，D1，D2等中的一个的长度。同步信道的重复距离对应于数据信道中的块数。 在同步信道中，信息被引入指示它们与数据信道的关系的块中。 以这种方式，该方法允许识别指示同步信道的位置的导频信道的位置，在该位置处，同步信道的信息的解码指定数据信道的位置。

    Receiver and method for decoding of truncated data
    7.
    发明授权
    Receiver and method for decoding of truncated data 有权
    用于解码截断数据的接收器和方法

    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。

    Control of frame timing on handover
    9.
    发明申请
    Control of frame timing on handover 有权
    切换时帧控制

    公开(公告)号：US20060063556A1

    公开(公告)日：2006-03-23

    申请号：US10507971

    申请日：2003-03-24

    申请人： Torgny Palenius ,  Christer Ostberg

    发明人： Torgny Palenius ,  Christer Ostberg

    IPC分类号： H04Q7/20 ,  H04B7/00

    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。