公开(公告)号：US07269207B2

公开(公告)日：2007-09-11

申请号：US10359472

申请日：2003-02-05

申请人： Jorma Lilleberg ,  Kim Rounioja ,  Thomas A. Sexton

发明人： Jorma Lilleberg ,  Kim Rounioja ,  Thomas A. Sexton

IPC分类号： H04B1/00

CPC分类号： H04B1/7105

摘要： A method and device for estimating a target chip index value in a code-division multiple access receiver. The receiver receives signals from a transmitter that uses a plurality of transmitted chips for data transmission through a plurality of multipath channels. As each channel is expressible as a channel impulse response at a given instant in time, the impulse response can be sampled and the samples indexed by a plurality of delay sample indices. The target chip index value can be determined based on the first moment of the delay sample indices over an impulse response.

摘要翻译： 一种用于估计码分多址接收机中的目标码片索引值的方法和装置。 接收机接收来自发射机的信号，该发射机使用多个传输的码片通过多个多径信道进行数据传输。 由于每个信道可以在给定的时刻作为信道脉冲响应来表达，所以脉冲响应可以被采样并且样本由多个延迟采样索引索引。 可以基于脉冲响应上的延迟采样索引的第一时刻来确定目标芯片指标值。

公开(公告)号：US06411186B1

公开(公告)日：2002-06-25

申请号：US09214801

申请日：1999-01-11

申请人： Jorma Lilleberg ,  Esko Nieminen

发明人： Jorma Lilleberg ,  Esko Nieminen

IPC分类号： H04B7216

CPC分类号： H04B1/707

摘要： A delay estimation method and a receiver in a radio system. Signals originate from one or several transmitters and propagate along several paths. One path (73-77) is selected at a time for estimation. The least squares minimization between the received signal and the code bank model is solved path by path (73-77) and delay by delay. The delay of only one selected path is changed at a time. Using the minimization results the delays of the other paths (73-77) remain unchanged. The minimization results establish the delay with the minimized result at most equal to the results for other delays. This delay is used as the constant value of the path (73-77) when the delays of the other paths are searched. The method provides the delays of all the paths (73-77) of all users simultaneously without information on user symbols or attenuation coefficients of the channel.

摘要翻译： 无线电系统中的延迟估计方法和接收机。 信号源自一个或多个发射机，并沿着几条路径传播。 一次选择一条路径（73-77）进行估计。 通过路径（73-77）和延迟延迟求解接收信号和码本模型之间的最小二乘法最小化。 一次只更改一个所选路径的延迟。 使用最小化结果，其他路径（73-77）的延迟保持不变。 最小化结果确定延迟，最小化结果最多等于其他延迟的结果。 当搜索其他路径的延迟时，该延迟被用作路径（73-77）的常数值。 该方法同时提供所有用户的所有路径（73-77）的延迟，而没有关于用户符号或信道的衰减系数的信息。

公开(公告)号：US5933423A

公开(公告)日：1999-08-03

申请号：US602773

申请日：1996-04-19

申请人： Timo Laakso ,  Jorma Lilleberg ,  Ari Hottinen

发明人： Timo Laakso ,  Jorma Lilleberg ,  Ari Hottinen

IPC分类号： H04B1/707 ,  H04B7/26 ,  H04B17/00 ,  H04Q7/22 ,  H04Q7/24 ,  H04Q7/26 ,  H04Q7/30 ,  H04B7/216

CPC分类号： H04B1/7107

摘要： A reception method and a receiver in a cellular radio system, the receiver comprising means for measuring the power level of each received signal. To detect the received signal in an advantageous manner, the receiver of the invention comprises means for dividing the received signals into several groups having at least two signals each, and means for detecting the signals in each groups from the received transmission simultaneously.

摘要翻译： PCT No.PCT / FI95 / 00384 Sec。 371日期：1996年04月19日 102（e）日期1996年4月19日PCT提交1995年7月3日PCT公布。 出版物WO96 / 01544 日期1996年1月18日在蜂窝无线电系统中的接收方法和接收机，接收机包括用于测量每个接收信号的功率电平的装置。 为了以有利的方式检测接收到的信号，本发明的接收机包括用于将接收到的信号分成几组的装置，每组具有至少两个信号，以及用于同时从接收的传输中检测每组中的信号的装置。

公开(公告)号：US5930289A

公开(公告)日：1999-07-27

申请号：US809532

申请日：1997-03-12

申请人： Timo Laakso ,  Jorma Lilleberg

发明人： Timo Laakso ,  Jorma Lilleberg

IPC分类号： H04B1/707 ,  H04B17/00 ,  H04B15/00

CPC分类号： H04B1/7105 ,  H04B17/309

摘要： The invention relates to a reception method and a receiver comprising means where a received signal is sampled, and means where the mutual delays of the transmissions contained in the signal and the strengths of the transmissions are measured from the received signal, said transmissions originating in one or more transmitters. In order to ensure reception of high quality, the receiver according to the invention comprises means, the input of which, is the sampled signal, and in which an estimate is calculated from the samples for each desired transmission on the basis of all samples which have arrived during a certain monitoring period, and that whenever a new sample arrives at the input of the means, the means updates the calculated estimates on the basis of the new sample.

摘要翻译： PCT No.PCT / FI95 / 00492 Sec。 371日期1997年3月12日 102（e）1997年3月12日PCT PCT 1995年9月11日PCT公布。 公开号WO96 / 08881 日期1996年3月21日本发明涉及一种接收方法和接收机，包括对接收信号进行采样的装置，以及其中从接收信号测量信号中包含的传输和传输强度的相互延迟的装置， 所述传输源自一个或多个发射机。 为了确保高质量的接收，根据本发明的接收机包括其输入是采样信号的装置，并且其中根据具有所有样本的每个期望传输的样本计算估计值 在某个监测期间到达，每当一个新的样本到达手段的输入时，该手段就会根据新的样本更新计算的估计值。