公开(公告)号：US06807154B1

公开(公告)日：2004-10-19

申请号：US09415705

申请日：1999-10-11

申请人： Göran Malmgren ,  Jamshid Khun-Jush ,  Hui Li ,  Uwe Dettmar ,  Peter Schramm ,  Jörn Thielecke ,  Udo Wachsmann

发明人： Göran Malmgren ,  Jamshid Khun-Jush ,  Hui Li ,  Uwe Dettmar ,  Peter Schramm ,  Jörn Thielecke ,  Udo Wachsmann

IPC分类号： H04B7212

CPC分类号： H04L1/0001 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025 ,  H04W8/245 ,  H04W48/12

摘要： A TDMA/TDD link adaptation method determines radio link quality at a base station. The radio link quality is used to update and broadcast a physical layer parameter indicator (10-16) from the base station on a broadcast control channel having a common physical layer parameter indicator for all uplink and downlink channels.

摘要翻译： TDMA / TDD链路自适应方法确定基站处的无线电链路质量。 无线电链路质量用于在具有用于所有上行链路和下行链路信道的公共物理层参数指示符的广播控制信道上从基站更新和广播物理层参数指示符（10-16）。

公开(公告)号：US07760834B2

公开(公告)日：2010-07-20

申请号：US11955238

申请日：2007-12-12

申请人： Fabian Wenger ,  Uwe Dettmar ,  Udo Wachsmann ,  Peter Schramm

发明人： Fabian Wenger ,  Uwe Dettmar ,  Udo Wachsmann ,  Peter Schramm

IPC分类号： H04L7/00

CPC分类号： H04L7/042 ,  H04L7/007 ,  H04L7/04 ,  H04L27/2613 ,  H04L27/2662 ,  H04W56/0085

摘要： A method and a device of providing timing information within a wireless communication system is described. The timing information is extracted from a received transmit signal. The inventive method comprises the steps of providing a training signal on the receiver side relating to a known signal portion of the transmit signal, scaling the training signal, quantizing the scaled training signal, correlating one or more parts of the received transmit signal with the scaled training signal to obtain one or more correlation results, and determining the timing information on the basis of the correlation results.

公开(公告)号：US07327817B2

公开(公告)日：2008-02-05

申请号：US10751117

申请日：2004-01-05

申请人： Fabian Wenger ,  Uwe Dettmar ,  Udo Wachsmann ,  Peter Schramm

发明人： Fabian Wenger ,  Uwe Dettmar ,  Udo Wachsmann ,  Peter Schramm

IPC分类号： H04L7/00

CPC分类号： H04L7/042 ,  H04L7/007 ,  H04L7/04 ,  H04L27/2613 ,  H04L27/2662 ,  H04W56/0085

摘要： A method and a device of providing timing information within a wireless communication system is described. The timing information is extracted from a received transmit signal. The inventive method comprises the steps of providing a training signal on the receiver side relating to a known signal portion of the transmit signal, scaling the training signal, quantizing the scaled training signal, correlating one or more parts of the received transmit signal with the scaled training signal to obtain one or more correlation results, and determining the timing information on the basis of the correlation results.

摘要翻译： 描述了在无线通信系统内提供定时信息的方法和装置。 从所接收的发送信号中提取定时信息。 本发明的方法包括以下步骤：在接收机侧提供与发射信号的已知信号部分相关的训练信号，缩放训练信号，量化缩放的训练信号，将接收的发射信号的一个或多个部分与缩放的 训练信号以获得一个或多个相关结果，以及基于相关结果确定定时信息。

公开(公告)号：US20090052598A1

公开(公告)日：2009-02-26

申请号：US11955263

申请日：2007-12-12

申请人： Fabian WENGER ,  Uwe Dettmar ,  Udo Wachsmann ,  Peter Schramm

发明人： Fabian WENGER ,  Uwe Dettmar ,  Udo Wachsmann ,  Peter Schramm

IPC分类号： H04L7/00

CPC分类号： H04L7/042 ,  H04L7/007 ,  H04L7/04 ,  H04L27/2613 ,  H04L27/2662 ,  H04W56/0085

摘要： A method and a device of providing timing information within a wireless communication system is described. The timing information is extracted from a received transmit signal. The inventive method comprises the steps of providing a training signal on the receiver side relating to a known signal portion of the transmit signal, scaling the training signal, quantizing the scaled training signal, correlating one or more parts of the received transmit signal with the scaled training signal to obtain one or more correlation results, and determining the timing information on the basis of the correlation results.

公开(公告)号：US07729460B2

公开(公告)日：2010-06-01

申请号：US11955263

申请日：2007-12-12

申请人： Fabian Wenger ,  Uwe Dettmar ,  Udo Wachsmann ,  Peter Schramm

发明人： Fabian Wenger ,  Uwe Dettmar ,  Udo Wachsmann ,  Peter Schramm

IPC分类号： H04L7/00

CPC分类号： H04L7/042 ,  H04L7/007 ,  H04L7/04 ,  H04L27/2613 ,  H04L27/2662 ,  H04W56/0085

摘要： A method and a device of providing timing information within a wireless communication system is described. The timing information is extracted from a received transmit signal. The inventive method comprises the steps of providing a training signal on the receiver side relating to a known signal portion of the transmit signal, scaling the training signal, quantizing the scaled training signal, correlating one or more parts of the received transmit signal with the scaled training signal to obtain one or more correlation results, and determining the timing information on the basis of the correlation results.

摘要翻译： 描述了在无线通信系统内提供定时信息的方法和装置。 从所接收的发送信号中提取定时信息。 本发明的方法包括以下步骤：在接收机侧提供与发射信号的已知信号部分相关的训练信号，缩放训练信号，量化缩放的训练信号，将接收的发射信号的一个或多个部分与缩放的 训练信号以获得一个或多个相关结果，以及基于相关结果确定定时信息。

公开(公告)号：US20090034667A1

公开(公告)日：2009-02-05

申请号：US11955238

申请日：2007-12-12

申请人： Fabian WENGER ,  Uwe Dettmar ,  Udo Wachsmann ,  Peter Schramm

发明人： Fabian WENGER ,  Uwe Dettmar ,  Udo Wachsmann ,  Peter Schramm

IPC分类号： H04L7/00

CPC分类号： H04L7/042 ,  H04L7/007 ,  H04L7/04 ,  H04L27/2613 ,  H04L27/2662 ,  H04W56/0085

摘要： A method and a device of providing timing information within a wireless communication system is described. The timing information is extracted from a received transmit signal. The inventive method comprises the steps of providing a training signal on the receiver side relating to a known signal portion of the transmit signal, scaling the training signal, quantizing the scaled training signal, correlating one or more parts of the received transmit signal with the scaled training signal to obtain one or more correlation results, and determining the timing information on the basis of the correlation results.

摘要翻译： 描述了在无线通信系统内提供定时信息的方法和装置。 从所接收的发送信号中提取定时信息。 本发明的方法包括以下步骤：在接收机侧提供与发射信号的已知信号部分相关的训练信号，缩放训练信号，量化缩放的训练信号，将接收的发射信号的一个或多个部分与缩放的 训练信号以获得一个或多个相关结果，以及基于相关结果确定定时信息。

公开(公告)号：US07366517B2

公开(公告)日：2008-04-29

申请号：US11492916

申请日：2006-07-26

申请人： Ralf Keller ,  Ralf Tonjes ,  Wolfgang Stahl ,  Jörn Thielecke ,  Jörg Huschke ,  Udo Wachsmann

发明人： Ralf Keller ,  Ralf Tonjes ,  Wolfgang Stahl ,  Jörn Thielecke ,  Jörg Huschke ,  Udo Wachsmann

IPC分类号： H04Q7/20

CPC分类号： H04W16/14 ,  H04W16/02 ,  H04W16/32

摘要： Method of arranging a cellular radio network in a geographical area which is already covered by an existing cellular radio network, wherein cell clusters of the cellular radio network to be introduced and using a specific transmission frequency are located in areas determined by connecting at least two cells of the existing cellular radio network using the specific transmission frequency, and wherein the cell clusters are arranged such that they do not overlap with the cells of the existing cellular radio network. The cell clusters of the introduced cellular radio network may be adjusted by reducing the cell size of cell clusters of the introduced cellular radio network, and by introducing new cells into cell clusters of the introduced cellular radio network. The invention allows to reuse frequencies of an existing cellular radio network by an introduced cellular radio network in the same geographical area.

摘要翻译： 在已经被现有的蜂窝无线电网络覆盖的地理区域中布置蜂窝无线电网络的方法，其中要引入并使用特定传输频率的蜂窝无线电网络的小区集群位于通过连接至少两个小区 使用特定传输频率的现有蜂窝无线电网络，并且其中小区群集被布置为使得它们不与现有蜂窝无线电网络的小区重叠。 引入的蜂窝无线电网络的小区群可以通过减小引入的蜂窝无线电网络的小区簇的小区大小，并且通过将新小区引入到所引入的蜂窝无线电网络的小区簇中来进行调整。 本发明允许在相同地理区域中由引入的蜂窝无线电网络重用现有蜂窝无线电网络的频率。

公开(公告)号：US07120199B2

公开(公告)日：2006-10-10

申请号：US10137701

申请日：2002-05-03

申请人： Jörn Thielecke ,  Udo Wachsmann

发明人： Jörn Thielecke ,  Udo Wachsmann

IPC分类号： H04B7/02

CPC分类号： H04W52/42 ,  H04B7/0417 ,  H04B7/0443 ,  H04B7/0613 ,  H04B7/0632 ,  H04B7/0837 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0656 ,  H04L1/12 ,  H04L5/0046 ,  H04L25/0208 ,  H04L25/0248 ,  H04W24/00 ,  H04W28/06 ,  H04W28/18

摘要： MIMO transmission methods are applied to communicaiton systems in which a transmitter has more than one transmit antenna and a receiver has more than one receive antenna. Information to be transmitted is divided into a plurality of subsignals according to the number of used transmit antennas and each subsignal is processed separately before it is emitted by the respective transmit antenna. In the receiver the different receive signals are processed thus that subsignals are detected and decoded and the contribution of each detected and decoded subsignal is subtracted from the receive signals and whereby a feedback channel from receiver to transmitter is used to send control information to the transmitter depending on the receive situation. In order to optimize the usage of the MIMO channel the invention proposes the in the receiver the link quality of each subsignal is determined and information of each subsignal is transmitted to the receiver via the feedback channel and that in the transmitter properties of the subsignals are controlled by the link quality information.

公开(公告)号：US07146132B2

公开(公告)日：2006-12-05

申请号：US10415983

申请日：2001-06-26

申请人： Ralf Keller ,  Ralf Tonjes ,  Wolfgang Stahl ,  Jörn Thielecke ,  Jörg Huschke ,  Udo Wachsmann

发明人： Ralf Keller ,  Ralf Tonjes ,  Wolfgang Stahl ,  Jörn Thielecke ,  Jörg Huschke ,  Udo Wachsmann

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04W16/14 ,  H04W16/02 ,  H04W16/32

摘要： Method of arranging a cellular radio network in a geographical area which is already covered by an existing cellular radio network, wherein cell clusters of the cellular radio network to be introduced and using a specific transmission frequency are located in areas determined by connecting at least two cells of the existing cellular radio network using the specific transmission frequency, and wherein the cell clusters are arranged such that they do not overlap with the cells of the existing cellular radio network. The cell clusters of the introduced cellular radio network may be adjusted by reducing the cell size of cell clusters of the introduced cellular radio network, and by introducing new cells into cell clusters of the introduced cellular radio network. The invention allows to reuse frequencies of an existing cellular radio network by an introduced cellular radio network in the same geographical area.

摘要翻译： 在已经被现有的蜂窝无线电网络覆盖的地理区域中布置蜂窝无线电网络的方法，其中要引入并使用特定传输频率的蜂窝无线电网络的小区集群位于通过连接至少两个小区 使用特定传输频率的现有蜂窝无线电网络，并且其中小区群集被布置为使得它们不与现有蜂窝无线电网络的小区重叠。 引入的蜂窝无线电网络的小区群可以通过减小引入的蜂窝无线电网络的小区簇的小区大小，并且通过将新小区引入到所引入的蜂窝无线电网络的小区簇中来进行调整。 本发明允许在相同地理区域中由引入的蜂窝无线电网络重用现有蜂窝无线电网络的频率。

公开(公告)号：US07009932B2

公开(公告)日：2006-03-07

申请号：US09867711

申请日：2001-05-31

申请人： Kirsten Matheus ,  Udo Wachsmann ,  Uwe Dettmar

发明人： Kirsten Matheus ,  Udo Wachsmann ,  Uwe Dettmar

IPC分类号： H04L11/00

CPC分类号： H04L27/2657 ,  H04L27/2695

摘要： A frequency tracking device (FTD) in particular for use in a OFDM communication system comprises a selector (SEL) which selects on the basis of N channel coefficients (Cest) a number M of subcarriers corresponding to the M channel coefficients (Cest) having the largest absolute values. An evaluator (EVAL) of the frequency tracking device (FTD) determines a frequency deviation estimate (foff,est) on the basis of the selected M subcarriers and the selected M channel coefficients. In addition to or instead of a feedback correction unit (CORR1) provided upstream of a multi-carrier filter bank (8; FFT), the frequency tracking device (FTD) can also comprise a feed forward correction unit (CORR2) provided downstream of the receiver multi-carrier filter bank (8). In this case the selector (SEL) and the feed forward correction unit (CORR2) operate on the same data symbols such that the correction unit (CORR2) corrects the same data symbols which are subject to the selection and evaluation process in the selector (SEL) and the evaluator (EVAL). Based on the selection and evaluation processes frequency deviations (foff) which are introduced into multi-carrier symbols when being transmitted between a transmitter multi-carrier filter bank (4; IFFT) and a receiver multi-carrier filter bank (8; FFT) can be corrected more efficiently, e.g. with a reduced computational complexity.

摘要翻译： 特别是在OFDM通信系统中使用的频率跟踪装置（FTD）包括一个选择器（SEL），它根据N个信道系数（C＆gt; est＆lt; / SUB）选择M个对应于 具有最大绝对值的M个通道系数（C ）。 频率跟踪装置（FTD）的评估器（EVAL）基于所选择的M个子载波和所选择的M个信道系数来确定频率偏差估计（f off，估计）。 除了或代替设置在多载波滤波器组（8; FFT）上游的反馈校正单元（CORR 1）之外，频率跟踪装置（FTD）还可以包括提供在下游的前馈校正单元（CORR 2） 的接收机多载波滤波器组（8）。 在这种情况下，选择器（SEL）和前馈校正单元（CORR 2）在相同的数据符号上操作，使得校正单元（CORR 2）校正在选择器中进行选择和评估处理的相同数据符号 （SEL）和评估者（EVAL）。 基于在发射机多载波滤波器组（4; IFFT）和接收机多载波之间传输时被引入到多载波符号中的选择和评估处理频率偏差（f OFF） 可以更有效地校正滤波器组（8; FFT），例如 降低计算复杂度。