-
公开(公告)号：US20110134980A1
公开(公告)日：2011-06-09
申请号：US12991076
申请日：2009-05-08
CPC分类号： H03G3/3078
摘要： A technique for controlling a gain of a receiver is provided. A method implementation of this technique comprises the steps of receiving at least one signal, initially controlling the gain of the receiver based on a correlation value of a first part of the received signal having a substantially constant signal strength, determining at least one timing-related parameter of the received signal based on the at least first part, identifying based on the at least one timing-related parameter at least a second part of the received signal having a substantially constant signal strength and further controlling the gain of the receiver based on a measured signal strength of the identified second part.
摘要翻译： 提供了一种用于控制接收机增益的技术。 该技术的方法实现包括以下步骤：基于接收信号的第一部分的相关值，初始地控制接收机的增益，接收至少一个信号，该相关值具有基本恒定的信号强度，确定至少一个定时相关 基于所述至少第一部分的所述接收信号的参数，基于所述至少一个定时相关参数识别所述接收信号的至少第二部分具有基本上恒定的信号强度，并且基于所述接收机的增益进一步控制所述接收机的增益 测定的第二部分的信号强度。
-
22.发明授权Method and device for providing timing information in a wireless communication system 有权用于在无线通信系统中提供定时信息的方法和装置公开(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：US07324600B2
公开(公告)日：2008-01-29
申请号：US10774702
申请日：2004-02-10
申请人： Mathias Pauli , Udo Wachsmann
发明人： Mathias Pauli , Udo Wachsmann
IPC分类号： H04L27/28
CPC分类号： H04L25/0204 , H04L1/0618 , H04L5/0023 , H04L5/0048 , H04L27/2662
摘要： A method and a stage for estimating channel coefficients in a multi carrier system operating in accordance with a block-code based transmit diversity scheme, in which a data content of a code matrix is multiplexed in a frequency domain are described. The method comprises determining a phase ramp in the frequency domain or an equivalent thereof in the time domain, the phase ramp or the equivalent thereof being comprised within a receive signal after timing synchronization, processing the receive signal to remove the phase ramp or the equivalent thereof and estimating the channel coefficients on the basis of the processed receive signal.
摘要翻译： 描述了一种用于估计在根据基于块码的发射分集方案操作的多载波系统中的信道系数的方法和级，其中码矩阵的数据内容在频域中被复用。 该方法包括在定时同步之后确定频域中的相位斜坡或其等效线，相位斜坡或其等效线包括在定时同步之后的接收信号中，处理接收信号以去除相位斜坡或其等效物 以及基于所处理的接收信号来估计信道系数。
-
公开(公告)号：US06553540B1
公开(公告)日：2003-04-22
申请号：US09397512
申请日：1999-09-17
申请人： Peter Schramm , Udo Wachsmann
发明人： Peter Schramm , Udo Wachsmann
IPC分类号： H03M1303
CPC分类号： H04L1/0059 , H04L27/2602
摘要： In wireless telecommunications systems, such as wireless local area networks, a flexible, less complex, and bandwidth efficient forward error correction method can be achieved by applying a first convolutional coding scheme to the bits in a first portion of a data block and a second convolutional coding scheme to the bits in a second portion of the data block, wherein the second portion of the data block may encompass a remaining portion of the data block, excluding the first portion, or the entire data block, including the first portion. While the first coding scheme employs a first code rate, the second coding scheme employs a second code rate that is higher than the first code rate. The higher rate makes it possible to incorporate the one or more tail bits into the second portion of the data block, and therefore, avoid generating any additional symbols, such as orthogonal frequency division multiplexing symbols, to exclusively modulate the tail bits.
摘要翻译： 在诸如无线局域网的无线电信系统中，可以通过对数据块的第一部分中的比特应用第一卷积编码方案和第二卷积编码方案来实现灵活的，较不复杂的和带宽有效的前向纠错方法 编码方案到数据块的第二部分中的位，其中数据块的第二部分可以包括数据块的剩余部分，不包括第一部分或包括第一部分的整个数据块。 虽然第一编码方案采用第一码率，但是第二编码方案采用比第一码率高的第二码率。 较高的速率使得可以将一个或多个尾比特并入数据块的第二部分，因此避免产生任何附加符号，例如正交频分复用符号，以专门调制尾比特。
-
25.发明申请Technique for Processing Encoded Information in a Wireless Communication Network 有权在无线通信网络中处理编码信息的技术公开(公告)号：US20130107993A1
公开(公告)日：2013-05-02
申请号：US13695982
申请日：2010-05-06
IPC分类号： H04L1/00
CPC分类号： H04L1/0054 , H03M13/09 , H03M13/23 , H03M13/2933 , H03M13/3738 , H03M13/413 , H03M13/4169 , H03M13/6525
摘要： A technique for processing information in a wireless communication network is described. In a method in accordance with the technique, a signal encoded with a convolution code is received. The encoded signal comprises information and a check value. The encoded signal is decoded using a Viterbi algorithm to derive the information and the check value. The decoding includes computing a Viterbi state metric. A reliability parameter is then determined based on the Viterbi state metric. The information is selectively processed depending on both the check value and the reliability parameter.
摘要翻译： 描述了一种在无线通信网络中处理信息的技术。 在根据该技术的方法中，接收利用卷积码编码的信号。 编码信号包括信息和检查值。 使用维特比算法对编码信号进行解码以导出信息和检查值。 解码包括计算维特比状态度量。 然后，基于维特比状态度量来确定可靠性参数。 根据检查值和可靠性参数，选择性地处理信息。
-
公开(公告)号：US20110176535A1
公开(公告)日：2011-07-21
申请号：US13061908
申请日：2008-09-05
IPC分类号： H04J3/06
CPC分类号： H04B7/2684 , H04W56/0045
摘要： The invention relates to a technique for controlling a synchronization of a terminal device (10) with a wireless network, e.g. an LTE network, wherein data are transmitted as a continuous data signal on a radio interface (11, 12) while being processed block-wise in the terminal (10). A method embodiment of the technique for achieving at least a downlink (11) synchronization comprises establishing a time-address mapping (TAM, 36) indicative of an association of a reference time value of an internal clock (32) with a reference address in the reception data buffer (16); determining an address of data samples representing the received data block in the reception data buffer (16) based on the time-address mapping; and initiating a block-wise reading of the data block from the reception data buffer (16) based on the determined address.
摘要翻译： 本发明涉及一种用于控制终端设备（10）与无线网络的同步的技术，例如， LTE网络，其中数据在无线接口（11,12）上作为连续数据信号发送，同时在终端（10）中以块方式进行处理。 用于实现至少下行链路（11）同步的技术的方法实施例包括建立指示内部时钟（32）的参考时间值与参考地址的关联的时间地址映射（TAM，36） 接收数据缓冲器（16）; 基于时间地址映射确定在接收数据缓冲器（16）中表示接收数据块的数据样本的地址; 以及基于所确定的地址，从所述接收数据缓冲器（16）发起对所述数据块的块状读取。
-
公开(公告)号：US20110026649A1
公开(公告)日：2011-02-03
申请号：US12837652
申请日：2010-07-16
IPC分类号： H04L27/00
CPC分类号： H04L27/2659 , H04L27/2675
摘要： A technique for determining a frequency offset between components of a communication network based on a Constant Amplitude Zero Auto-Correlation (CAZAC) sequence is described. A method implementation of this technique comprises a provision of a set of correlation signals at different frequencies, with each correlation signal being indicative of a specific frequency offset hypothesis and comprising the CAZAC sequence. Once a synchronization signal comprising the CAZAC sequence is received, this synchronization signal is correlated with each of the correlation signals to obtain a correlation result for each frequency offset hypothesis. In a next step, at least one of the frequency offset hypotheses is selected based on a comparison of the correlation results. The frequency offset may then be determined based on the at least one selected frequency offset hypothesis.
摘要翻译： 描述了基于恒幅零自相关（CAZAC）序列来确定通信网络的组件之间的频率偏移的技术。 该技术的方法实现包括提供不同频率的一组相关信号，每个相关信号指示特定的频率偏移假设并且包括CAZAC序列。 一旦接收到包括CAZAC序列的同步信号，则该同步信号与每个相关信号相关，以获得每个频率偏移假设的相关结果。 在下一步骤中，基于相关结果的比较来选择频偏假设中的至少一个。 然后可以基于至少一个选择的频率偏移假设来确定频率偏移。
-
28.发明授权Method and device for providing timing information in a wireless communication system 有权用于在无线通信系统中提供定时信息的方法和装置公开(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：US20090207853A1
公开(公告)日：2009-08-20
申请号：US12369633
申请日：2009-02-11
IPC分类号： H04L29/06
CPC分类号： H04L27/2647 , H04J11/0069 , H04L27/2607
摘要： A technique is provided for determining the configuration of a sub-frame having data symbols including cyclic-prefixes. In some communication standards such as the Long Term Evolution (LTE) standard, a plurality of possible configurations exist for a sub-frame, with each configuration being identifiable by a certain cyclic-prefix length. In an exemplary method realization, the technique includes receiving a data signal comprising the sub-frame, evaluating one or more hypotheses of the cyclic prefix length to produce one or more corresponding evaluation results, and, based on the evaluation results, deciding on a most-likely cyclic prefix length, according to which the sub-frame configuration is determined. The hypothesis evaluation may involve autocorrelation and cyclic accumulation of samples of the received data signal.
摘要翻译： 提供了一种用于确定具有包括循环前缀的数据符号的子帧的配置的技术。 在诸如长期演进（LTE）标准的某些通信标准中，对于子帧存在多个可能的配置，每个配置可以通过一定的循环前缀长度来识别。 在示例性方法实现中，该技术包括接收包括子帧的数据信号，评估循环前缀长度的一个或多个假设以产生一个或多个相应的评估结果，并且基于评估结果，决定最多 类似循环前缀长度，根据该长度确定子帧配置。 假设评估可以涉及接收数据信号的样本的自相关和循环累加。
-
30.发明申请METHOD AND DEVICE FOR PROVIDING TIMING INFORMATION IN A WIRELESS COMMUNICATION SYSTEM 有权用于在无线通信系统中提供时序信息的方法和装置公开(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。
-
-
-
-
-
-
-
-
-
搜索结果
34 条记录 (耗时 0.017 秒)
