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1. 发明授权

US07024188B2 Wireless communications system with detection of foreign radiation sources 有权
标题翻译：无线通信系统检测外来辐射源
公开(公告)号：US07024188B2
公开(公告)日：2006-04-04
申请号：US10489707
申请日：2002-09-13
申请人： Jamshid Khun-Jush , Peter Schramm , Jan Lindskog , Stefan Rommer , Mathias Pauli , Gerd Zimmermann , Fredrik Johansson , Anders Ranheim , Peter Larsson
发明人： Jamshid Khun-Jush , Peter Schramm , Jan Lindskog , Stefan Rommer , Mathias Pauli , Gerd Zimmermann , Fredrik Johansson , Anders Ranheim , Peter Larsson
IPC分类号： H04Q7/20 , G01S15/74 , G01S13/00
CPC分类号： H04W16/14 , H04W24/00 , H04W84/12 , H04W84/18
摘要： The invention discloses a method for use in a wireless communications system with a plurality of broadcasting nodes, comprising the step of enabling one node in the system to function as a central node in said system and letting said node enable measurements on at least one frequency in a frequency band used by the system. Said measurements are carried out to detect if said at least one frequency is being utilized by a transmitter foreign to the system. Preferably, the measurement is enabled by means of the node transmitting a message to other nodes in the system, said message being a message pre-defined within the system as a message prohibiting all nodes from transmitting during a certain interval, said message being transmitted after the system has been detected by the node to be silent during a predefined interval between frame transmissions from the nodes in the system.
摘要翻译：本发明公开了一种在具有多个广播节点的无线通信系统中使用的方法，包括使得系统中的一个节点能够用作所述系统中的中心节点并使所述节点能够在至少一个频率上进行测量的步骤系统使用的频段。执行所述测量以检测所述至少一个频率是否由系统外部的发射机利用。优选地，通过节点向系统中的其他节点发送消息来实现测量，所述消息是系统内预定义的消息，作为禁止所有节点在一定间隔期间发送的消息，所述消息在在系统中的节点的帧传输之间的预定义间隔期间，节点已经检测到系统静音。

2. 发明申请

US20050054294A1 Wireless communications system with detection of foreign radiation sources 有权
标题翻译：无线通信系统检测外来辐射源
公开(公告)号：US20050054294A1
公开(公告)日：2005-03-10
申请号：US10489707
申请日：2002-09-13
申请人： Jamshid Khun-Jush , Peter Schramm , Jan Lindskog , Stefan Rommer , Mathias Pauli , Gerd Zimmermann , Fredrik Johansson , Anders Ranheim , Peter Larsson
发明人： Jamshid Khun-Jush , Peter Schramm , Jan Lindskog , Stefan Rommer , Mathias Pauli , Gerd Zimmermann , Fredrik Johansson , Anders Ranheim , Peter Larsson
IPC分类号： H04L12/28 , H04L12/56 , H04W16/14 , H04W24/00 , H04W52/00 , H04W84/12 , H04W84/18 , H04B15/00
CPC分类号： H04W16/14 , H04W24/00 , H04W84/12 , H04W84/18
摘要： The invention discloses a method for use in a wireless communications system with a plurality of broadcasting nodes, comprising the step of enabling one node in the system to function as a central node in said system and letting said node enable measurements on at least one frequency in a frequency band used by the system. Said measurements are carried out to detect if said at least one frequency is being utilized by a transmitter foreign to the system. Preferably, the measurement is enabled by means of the node transmitting a message to other nodes in the system, said message being a message pre-defined within the system as a message prohibiting all nodes from transmitting during a certain interval, said message being transmitted after the system has been detected by the node to be silent during a predefined interval between frame transmissions from the nodes in the system.
摘要翻译：本发明公开了一种在具有多个广播节点的无线通信系统中使用的方法，包括使得系统中的一个节点能够用作所述系统中的中心节点并使所述节点能够在至少一个频率上进行测量的步骤系统使用的频段。执行所述测量以检测所述至少一个频率是否由系统外部的发射机利用。优选地，通过节点向系统中的其他节点发送消息来实现测量，所述消息是系统内预定义的消息，作为禁止所有节点在一定间隔期间发送的消息，所述消息在在系统中的节点的帧传输之间的预定义间隔期间，节点已经检测到系统静音。

3. 发明授权

US07496368B2 Method and device for controlling frequency selection within a wireless communication system 有权
标题翻译：用于控制无线通信系统内的频率选择的方法和装置
公开(公告)号：US07496368B2
公开(公告)日：2009-02-24
申请号：US10674791
申请日：2003-10-01
申请人： Gerd Zimmermann , Mathias Pauli , Peter Schramm , Jamshid Khun-Jush , Lennart Gafvels , Göran Malmgren
发明人： Gerd Zimmermann , Mathias Pauli , Peter Schramm , Jamshid Khun-Jush , Lennart Gafvels , Göran Malmgren
IPC分类号： H04Q7/20
CPC分类号： H04W16/14 , H04K3/226 , H04K3/822 , H04K2203/18 , H04W24/00
摘要： The invention relates to a method and a device for controlling frequency selection within a wireless communication system in response to radar-like interference signals. The method comprises continuously or quasi-continuously monitoring and assessing a plurality of frequencies with respect to a radar-like interference signal and allocating a quality parameter to each assessed frequency, the quality parameter indicating the probability that the frequency is occupied. The method further comprises selecting one or more frequencies in dependence on the allocated quality parameters and subsequent frequency monitoring.
摘要翻译：本发明涉及一种用于响应于类似雷达的干扰信号来控制无线通信系统内的频率选择的方法和装置。该方法包括连续或准连续地监测和评估相对于类似雷达的干扰信号的多个频率，并且将质量参数分配给每个评估的频率，质量参数指示频率被占用的概率。该方法还包括根据所分配的质量参数和随后的频率监测来选择一个或多个频率。

4. 发明申请

US20050192016A1 Method and device for controlling frequency selection within a wireless communication system 有权
标题翻译：用于控制无线通信系统内的频率选择的方法和装置
公开(公告)号：US20050192016A1
公开(公告)日：2005-09-01
申请号：US10674791
申请日：2003-10-01
申请人： Gerd Zimmermann , Mathias Pauli , Peter Schramm , Jamshid Khun-Jush , Lennart Gafvels , Goran Malmgren
发明人： Gerd Zimmermann , Mathias Pauli , Peter Schramm , Jamshid Khun-Jush , Lennart Gafvels , Goran Malmgren
IPC分类号： H04L12/28 , H04L12/56 , H04W16/14 , H04W24/00 , H04Q7/20
CPC分类号： H04W16/14 , H04K3/226 , H04K3/822 , H04K2203/18 , H04W24/00
摘要： The invention relates to a method and a device for controlling frequency selection within a wireless communication system in response to radar-like interference signals. The method comprises continuously or quasi-continuously monitoring and assessing a plurality of frequencies with respect to a radar-like interference signal and allocating a quality parameter to each assessed frequency, the quality parameter indicating the probability that the frequency is occupied. The method further comprises selecting one or more frequencies in dependence on the allocated quality parameters and subsequent frequency monitoring.
摘要翻译：本发明涉及一种用于响应于类似雷达的干扰信号来控制无线通信系统内的频率选择的方法和装置。该方法包括连续或准连续地监测和评估相对于类似雷达的干扰信号的多个频率，并且将质量参数分配给每个评估的频率，质量参数指示频率被占用的概率。该方法还包括根据所分配的质量参数和随后的频率监测来选择一个或多个频率。

5. 发明授权

US06807154B1 Link and radio cell adaptation in TDD systems 有权
标题翻译： TDD系统中的链路和无线电小区适配
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）。

6. 发明授权

US07324599B2 Frequency correction for a multicarrier system 有权
标题翻译：多载波系统的频率校正
公开(公告)号：US07324599B2
公开(公告)日：2008-01-29
申请号：US10751120
申请日：2004-01-05
申请人： Georg Frank , Mathias Pauli , Udo Wachsmann , Peter Schramm
发明人： Georg Frank , Mathias Pauli , Udo Wachsmann , Peter Schramm
IPC分类号： H04K1/10
CPC分类号： H04L27/2657 , H04L27/2679
摘要： In order to correct frequency deviations of signals in a multicarrier system, such as a OFDM-system, the present invention provides a frequency tracker and a method to operate the same. The frequency tracker is based on a decision directed digital phase locked loop exhibiting a predictive character. On the basis of an estimated phase offset for a received signal (signal component, signal symbol) a predicted phase offset is calculated and applied to the signal (signal component, signal symbol). Further, received signals (signal components, signal symbols) are sampled and for each sample a sample phase offset to be corrected is calculated in dependence to the related estimated phase offset to incorporate the predictive character. In particular, the predicted sample phase offsets are calculated as a function of a corresponding predicted phase offset and a measure being indicative of a distance, in the time domain, between a corresponding phase reference point for the predicted phase offset and a phase reference point defined for a specific part of the received signal, preferably for a preceding preamble signal.
摘要翻译：为了校正诸如OFDM系统的多载波系统中的信号的频率偏差，本发明提供一种频率跟踪器及其操作方法。频率跟踪器基于呈现预测字符的决策指向的数字锁相环。基于接收信号（信号分量，信号符号）的估计相位偏移，计算预测相位偏移并将其施加到信号（信号分量，信号符号）。此外，接收到的信号（信号分量，信号符号）被采样，并且对于每个采样，根据相关的估计相位偏移来计算要校正的采样相位偏移以并入预测字符。特别地，预测的采样相位偏移作为相应的预测相位偏移的函数计算，并且指示在时域中在预测相位偏移的相应相位参考点和定义的相位参考点之间的距离的度量对于接收信号的特定部分，优选地用于前一个前导信号。

7. 发明授权

US07106709B2 Timing drift compensation in wireless packet-based systems 有权
标题翻译：无线分组系统中的定时漂移补偿
公开(公告)号：US07106709B2
公开(公告)日：2006-09-12
申请号：US09994944
申请日：2001-11-28
申请人： Stefan Davidsson , Mathias Pauli , Peter Schramm , Fabian Wenger , Udo Wachsmann , Roger Walther
发明人： Stefan Davidsson , Mathias Pauli , Peter Schramm , Fabian Wenger , Udo Wachsmann , Roger Walther
IPC分类号： H04Q7/00 , H04J3/06
CPC分类号： H04L27/2657 , H04L7/027 , H04L7/04 , H04L27/2602 , H04L27/2662 , H04L27/2675 , H04L27/2679 , H04L27/2695 , H04L2027/0028 , H04L2027/0095
摘要： A radio receiver system (30) comprises a radio receiver (41), a receiver sample clock (60), which is used for sampling a modulated base-band signal; and a timing correction unit (100). The timing correction unit (100) performs, in the frequency domain, a timing drift compensation between a transmitter sample clock (66) and the receiver sample clock (60). In one example context of implementation, the plural modulated radio frequency carriers have been modulated using Orthogonal Frequency Division Multiplexing (OFDM).
摘要翻译：无线电接收机系统（30）包括无线电接收机（41），接收机采样时钟（60），用于对已调制的基带信号进行采样; 和定时校正单元（100）。定时校正单元（100）在频域中执行发射机采样时钟（66）和接收机采样时钟（60）之间的定时漂移补偿。在一个实施例的上下文中，已经使用正交频分复用（OFDM）调制了多个调制的射频载波。

8. 发明申请

US20090052598A1 METHOD AND DEVICE FOR PROVIDING TIMING INFORMATION IN A WIRELESS COMMUNICATION SYSTEM 有权
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.

9. 发明授权

US06542742B2 Cell selection in mobile radio systems 有权
标题翻译：移动无线电系统中的小区选择
公开(公告)号：US06542742B2
公开(公告)日：2003-04-01
申请号：US09282205
申请日：1999-03-31
申请人： Peter Schramm , Frank Müller , Håkan Gunnar Olofsson
发明人： Peter Schramm , Frank Müller , Håkan Gunnar Olofsson
IPC分类号： H04Q720
CPC分类号： H04W36/30 , H04W36/26 , H04W72/08
摘要： The present invention relates generally to the problem of cell selection, for e.g. cell handover, in mobile telecommunication systems, and more particularly to the problem of selecting the optimum cell among cells with differing capabilities due to different air interface modes. Known algorithms for cell selection and handover are extended by applying additional criteria that take into account the capabilities, due to different modulation and coding schemes, of the mobile station and the base stations that are possible candidates. The quality of service (“QoS”) is predicted for the different cell candidates based on a combination of signal strength or C/I, different cell capabilities, multislot capability, etc. Then the cell is selected for which the predicted QoS is maximum. In another embodiment the invention is extended by taking into account further criteria which are suitable from a system point of view, e.g. to avoid a significant increase of average outage probability or interference level. The present invention increases the use of base stations supporting high data rates. The result is an increase in overall system throughput.
摘要翻译：本发明一般涉及细胞选择的问题，例如，移动电信系统中的小区切换，更具体地涉及由于不同的空中接口模式，在具有不同能力的小区中选择最佳小区的问题。通过应用附加标准来扩展用于小区选择和切换的已知算法，该附加标准考虑到由于不同的调制和编码方案而导致的移动台和可能候选的基站的能力。基于信号强度或C / I，不同小区能力，多时隙能力等的组合，为不同的小区候选者预测服务质量（“QoS”）。然后选择预测QoS最大的小区。在另一个实施例中，本发明通过考虑从系统角度考虑的其它标准来进行扩展，例如，以避免平均中断概率或干扰程度的显着增加。本发明增加了支持高数据速率的基站的使用。结果是整个系统吞吐量的增加。

10. 发明授权

US06208663B1 Method and system for block ARQ with reselection of FEC coding and/or modulation 失效
标题翻译：具有重新选择FEC编码和/或调制的块ARQ的方法和系统
公开(公告)号：US06208663B1
公开(公告)日：2001-03-27
申请号：US08921147
申请日：1997-08-29
申请人： Peter Schramm , Håkan Olofsson , Henrik Andreasson
发明人： Peter Schramm , Håkan Olofsson , Henrik Andreasson
IPC分类号： H04J316
CPC分类号： H04L1/1819 , H04L1/0006 , H04L1/1893 , H04L27/0008 , H04L27/2017 , H04L27/2071
摘要： A communication system supports multiple modulation/coding schemes. When connection quality drops below an acceptable threshold, ARQ techniques use an alternative modulation/coding scheme which is more resistant to noise and/or interference. Flexible resegmentation and mapping of information blocks is supported.
摘要翻译：通信系统支持多种调制/编码方案。当连接质量下降到可接受的阈值以下时，ARQ技术使用更可抵抗噪声和/或干扰的替代调制/编码方案。支持灵活的重新分割和信息块映射。

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