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1. 发明申请

WO2007031962A3 METHOD OF CLUSTERING DEVICES IN WIRELESS COMMUNICATION NEWORK 审中-公开
公开(公告)号：WO2007031962A3
公开(公告)日：2007-03-22
申请号：PCT/IB2006/053298
申请日：2006-09-14
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , BIRRU, Dagnachew , CHALLAPALI, Kiran , CORDEIRO, Carlos
发明人： BIRRU, Dagnachew , CHALLAPALI, Kiran , CORDEIRO, Carlos
IPC分类号： H04Q7/36
摘要： In a wireless communication network (200) comprising a base station (210) and a plurality of remote terminals (220), the plurality of remote terminals (220) are divided into a plurality of clusters (230) for communication with the base station (210), and each of the remote terminals (220) is assigned to a cluster (230) based on at least one characteristic, measured by one or more of the remote terminals (220), of one or more external signals transmitted by one or more external terrestrial transmitters (250) not associated with the communication network (200). Accordingly: a parameter of a communication between the base station (210) and each remote terminal (220) may be selected according to the cluster (230) to which each remote terminal (220) belongs; remote terminals (220) within a cluster (230) may be enabled to communicate directly with each other; and/or remote terminals (220) may be selected to perform frequency spectrum profile measurements of the frequency band used by the communication network (200) according to the clusters (230) to which they are assigned.

2. 发明申请

WO2007096819A2 SYSTEM, APPARATUS, AND METHOD FOR A TWO-STAGE MECHANISM FOR QUIET PERIOD MANAGEMENT IN SPECTRUM AGILE RADIO NETWORKS 审中-公开
标题翻译：频谱捷变无线电网络中用于静态周期管理的两阶段机制的系统，装置和方法
公开(公告)号：WO2007096819A2
公开(公告)日：2007-08-30
申请号：PCT/IB2007/050545
申请日：2007-02-20
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , CORDEIRO, Carlos M. , CHALLAPALI, Kiran S. , BIRRU, Dagnachew
发明人： CORDEIRO, Carlos M. , CHALLAPALI, Kiran S. , BIRRU, Dagnachew
IPC分类号： H04W16/10 , H04W88/08
CPC分类号： H04W72/082 , H04W16/14 , H04W72/0413
摘要： The present invention is a system (1200), base station (1100)/customer premise equipment (1150) apparatus, and method (400 450) for a two-stage quiet-period management mechanism that provides the required protection to incumbents (primary spectrum users) while supporting the desired QoS of secondary users participating in a cognitive radio network. In the first stage, a simple fast sensing (301) is done (e.g., energy detection) by all devices in the network. Depending on the result of the fast sensing, the second and possibly longer stage, herein termed fine sensing (302), is performed.
摘要翻译：本发明是用于两阶段安静时段管理机制的系统（1200），基站（1100）/用户端设备（1150）设备和方法（400450），其提供在支持参与认知无线电网络的次要用户期望的QoS的同时对现任（主要频谱用户）提供所需的保护。在第一阶段，网络中的所有设备完成简单的快速感测（301）（例如，能量检测）。取决于快速感测的结果，执行第二个并且可能更长的阶段，在此称为精细感测（302）。

3. 发明申请

WO2005099293A1 METHOD AND SYSTEM FOR THE ALLOCATION OF UWB TRANSMISSION BASED ON SPECTUM OPPORTUNITIES 审中-公开
标题翻译：基于SPECTUM机会的UWB传输分配方法与系统
公开(公告)号：WO2005099293A1
公开(公告)日：2005-10-20
申请号：PCT/IB2005/051113
申请日：2005-04-04
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , BIRRU, Dagnachew , MANGOLD, Stefan , CHALLAPALI, Kiran , DEL PRADO PAVON, Javier
发明人： BIRRU, Dagnachew , MANGOLD, Stefan , CHALLAPALI, Kiran , DEL PRADO PAVON, Javier
IPC分类号： H04Q7/36
CPC分类号： H04W16/06 , H04B1/71632 , H04B1/719 , H04W16/14
摘要： A method and system for efficiently utilizing frequency spectrum resources is disclosed. The method comprises the steps of determining at least one spectrum opportunity (510), wherein the opportunity is identified by a frequency range and a time duration, determining a set of altered transmission characteristics (515, 517) to allow transmission of a desired signal in the identified frequency range, wherein the altered transmission characteristics avoid interference with signals expected in the frequency range, and transmitting said desired signal using the altered transmission characteristics when the transmission occurs during said time duration. In one aspect of the system, the step of determining at least one opportunity comprises the steps of receiving signals in known frequency ranges, and determining the characteristics of the received signals. The system comprises a receiving unit (1001) for receiving information items regarding at least one receivable signal, a processing unit (862) for determining characteristics of the at least one received signal, a managing unit (864) for altering transmission characteristics of a desired signal based on the determined received signal characteristics, wherein the altered transmission characteristics avoid interference with the received signals and a transmission unit (866) receiving said altered transmission characteristics to transmit said desired signal. In one aspect, the desired signal transmission characteristics are altered in a frequency range/time period to avoid interference with received signals in the frequency range.
摘要翻译：公开了一种有效利用频谱资源的方法和系统。该方法包括以下步骤：确定至少一个频谱机会（510），其中通过频率范围和持续时间识别机会，确定一组改变的传输特性（515,517），以允许传输期望信号所述识别的频率范围，其中所述改变的传输特性避免对在所述频率范围内期望的信号的干扰，并且当在所述持续时间期间发生传输时，使用改变的传输特性来发送所述期望信号。在系统的一个方面，确定至少一个机会的步骤包括以下步骤：接收已知频率范围内的信号，并确定所接收信号的特性。该系统包括用于接收关于至少一个可接收信号的信息项目的接收单元（1001），用于确定至少一个接收信号的特性的处理单元（862），用于改变所需信号的传输特性的管理单元（864）基于所确定的接收信号特性的信号，其中所述改变的传输特性避免对接收到的信号的干扰;以及发送单元（866），接收所述改变的传输特性以发送所述期望信号。在一个方面，期望的信号传输特性在频率范围/时间段内改变，以避免在频率范围内对接收信号的干扰。

4. 发明申请

WO2007083269A1 DETECTION OF THE PRESENCE OF TELEVISION SIGNALS EMBEDDED IN NOISE USING CYCLOSTATIONARY TOOLBOX 审中-公开
标题翻译：使用循环工具箱检测噪音中嵌入的电视信号的存在
公开(公告)号：WO2007083269A1
公开(公告)日：2007-07-26
申请号：PCT/IB2007/050146
申请日：2007-01-16
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , CHALLAPALI, Kiran , DONG, Bin , BIRRU, Dagnachew
发明人： CHALLAPALI, Kiran , DONG, Bin , BIRRU, Dagnachew
IPC分类号： H04N5/44 , H04L12/28 , H04L12/56
CPC分类号： H04N5/08 , H04N5/21 , H04N5/4401 , H04N5/46 , H04N21/42607
摘要： A method for detecting the presence of a television signal embedded in a received signal including the television signal and noise is disclosed. Either first-order or second order cyclostationary property of the signals may be used for their detection. When the first-order cyclostationary property is used, the following method is used, the method comprising the steps of upsampling the received signal by a factor of N, performing a synchronous averaging of a set of M segments of the upsampled received signal, performing an autocorrelation of the signal; and detecting the presence of peaks in the output of the autocorrelation function. When the second order cyclostationary property of the signal is used, the method comprising the steps of delaying the received signal by a fixed delay (symbol time), multiplying the received signal with the delayed version, looking for a tone (single frequency) in the output.
摘要翻译：公开了一种用于检测嵌入在包括电视信号和噪声的接收信号中的电视信号的存在的方法。信号的一阶或二阶循环平稳性可以用于它们的检测。当使用一阶循环平稳性时，使用以下方法，该方法包括以下步骤：对接收到的信号进行上采样乘以N，对上采样的接收信号的一组M段执行同步平均，信号的自相关; 并检测在自相关函数的输出中存在峰值。当使用信号的二阶循环平稳性时，该方法包括以下步骤：将接收到的信号延迟固定延迟（符号时间），将接收到的信号与延迟版本相乘，在接收到的信号中寻找音调（单频）输出。

5. 发明申请

WO2006077559A2 METHOD AND APPARATUS FOR DETECTING THE PRESENCE OF A DIGITAL TELEVISION SIGNAL 审中-公开
标题翻译：用于检测数字电视信号的存在的方法和设备
公开(公告)号：WO2006077559A2
公开(公告)日：2006-07-27
申请号：PCT/IB2006/050229
申请日：2006-01-20
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , BIRRU, Dagnachew , CHALLAPALI, Kiran S.
发明人： BIRRU, Dagnachew , CHALLAPALI, Kiran S.
IPC分类号： H04B17/00 , H04B10/08 , H04L27/26 , H04B1/707
CPC分类号： H04N17/004 , H04L27/2647
摘要： A method (200) and system (300) for detecting the presence of a digital television signal takes advantage of the periodic training sequence within the DTV signal. The method (200) and system (300) autocorrelate the digitally sampled received signal using a delay (410, 510) that is approximately the same as the period between training sequence. If a correlation peak is detected that exceeds a set threshold, it is determined that a DTV signal is present, otherwise it is determined that there is no DTV signal is present.
摘要翻译：用于检测数字电视信号的存在的方法（200）和系统（300）利用DTV信号内的周期性训练序列。方法（200）和系统（300）使用与训练序列之间的周期大致相同的延迟（410,510）来自动相关数字采样的接收信号。如果检测到超过设定阈值的相关峰值，则确定存在DTV信号，否则确定不存在DTV信号。

6. 发明申请

WO2007031958A2 SPECTRUM MANAGEMENT IN DYNAMIC SPECTRUM ACCESS WIRELESS SYSTEMS 审中-公开
标题翻译：动态频谱接入无线系统中的频谱管理
公开(公告)号：WO2007031958A2
公开(公告)日：2007-03-22
申请号：PCT/IB2006/053292
申请日：2006-09-14
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , CORDEIRO, Carlos , BIRRU, Dagnachew
发明人： CORDEIRO, Carlos , BIRRU, Dagnachew
IPC分类号： H04W72/06
CPC分类号： H04W72/06
摘要： A plurality of MAC/PHY stacks is adapted to support wireless devices. A superframe structure includes a preamble and a superframe initialization header.
摘要翻译：多个MAC / PHY堆栈适于支持无线设备。超帧结构包括前导码和超帧初始化标头。

7. 发明申请

WO2007096821A2 METHODS AND SYSTEMS FOR EXTENDING RANGE AND ADJUSTING BANDWIDTH FOR WIRELESS NETWORKS 审中-公开
标题翻译：用于无线网络的扩展范围和调整带宽的方法和系统
公开(公告)号：WO2007096821A2
公开(公告)日：2007-08-30
申请号：PCT/IB2007/050548
申请日：2007-02-20
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , CORDEIRO, Carlos M. , BIRRU, Dagnachew , GHOSH, Monisha
发明人： CORDEIRO, Carlos M. , BIRRU, Dagnachew , GHOSH, Monisha
IPC分类号： H04Q7/36
CPC分类号： H04W72/0453 , H04W16/28 , H04W80/00 , H04W88/08
摘要： A Communications base-station configured to operate as a hub in a wireless network and provide communication services to a set of remote customer devices using a wireless protocol is disclosed. The communications base-station includes an antenna array having a plurality of antennae arranged in a fashion as to enable the antenna array to transmit and receive wireless signals in both a substantially omnidirectional and non-omnidirectional pattern, a physical layer (PHY) device coupled to the antenna array and configured to transmit and receive wireless signals and a media access control (MAC) device coupled to the PHY device and configured to direct the antenna array to concurrently provide beamformed wireless signals to a first customer device and omnidirectional wireless signals to second customer device.
摘要翻译：公开了一种被配置为作为无线网络中的集线器并且使用无线协议向一组远程客户设备提供通信服务的通信基站。通信基站包括具有多个天线的天线阵列，天线阵列以能够使天线阵列在基本上全向和非全向模式中发射和接收无线信号的方式布置，物理层（PHY）设备耦合到所述天线阵列并且被配置为发送和接收无线信号，以及媒体访问控制（MAC）设备，其耦合到所述PHY设备并被配置为引导所述天线阵列同时向第一客户设备提供波束形成的无线信号以及向所述第二客户提供全向无线信号设备。

8. 发明申请

WO2009128030A1 AN IMPROVED DUAL CARRIER MODULATION PRECODING 审中-公开
标题翻译：改进的双载波调制预处理
公开(公告)号：WO2009128030A1
公开(公告)日：2009-10-22
申请号：PCT/IB2009/051559
申请日：2009-04-14
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , WANG, Dong , BIRRU, Dagnachew
发明人： WANG, Dong , BIRRU, Dagnachew
IPC分类号： H04L27/26 , H04L5/00 , H04L1/00
CPC分类号： H04L27/2626 , H04L1/04 , H04L5/0007 , H04L27/28
摘要： A method (300) for performing dual carrier modulation (DCM) precoding. The method comprises generating data sub-blocks (S320), independently interleaving the sub-blocks (S330), generating bit vectors by grouping bits of the interleaved sub- blocks (S350), mapping the bit vectors into data symbols (S360), and precoding the data symbols using a precoding matrix to generate precoded symbols (S370).
摘要翻译：一种用于执行双载波调制（DCM）预编码的方法（300）。该方法包括：生成数据子块（S320），独立地交错子块（S330），通过对交错子块的比特进行分组（S350）生成位向量，将比特向量映射成数据符号（S360），以及使用预编码矩阵预编码数据符号以生成预编码符号（S370）。

9. 发明申请

WO2009087521A1 METHOD AND SYSTEM OF WIRELESS DEVICE DISCOVERY IN A WIRELESS NETWORK EMPLOYING DIRECTIONAL ANTENNAS 审中-公开
标题翻译：在使用方向天线的无线网络中发现无线设备的方法和系统
公开(公告)号：WO2009087521A1
公开(公告)日：2009-07-16
申请号：PCT/IB2008/055434
申请日：2008-12-18
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , BIRRU, Dagnachew
发明人： BIRRU, Dagnachew
IPC分类号： H04W40/24 , H04L12/28
CPC分类号： H04W8/005 , H04B7/0613
摘要： A wireless device (100) communicates in a wireless network, and executes a wireless device discovery process to discover other wireless devices (100) in the wireless network. In the wireless device discovery process, the wireless device (100) sets its antenna pattern to have an omnidirectional antenna pattern (202), and transmits a first packet (300) using the omnidirectional antenna pattern (202). The first packet (300) comprises a packet preamble sequence (310) formed by repeating each sample of a synchronization sequence N times (N >1). The remainder (320) of the first packet (300) is formed by spreading each sample thereof with a spreading factor P (P> 1). For normal data communications, the wireless device (100) sets the antenna pattern to have a directional antenna pattern (204), and transmits a second packet using the directional antenna pattern (204).
摘要翻译：无线设备（100）在无线网络中通信，并执行无线设备发现过程以发现无线网络中的其他无线设备（100）。在无线设备发现过程中，无线设备（100）将其天线方向图设置为具有全向天线方向图（202），并且使用全向天线方向图（202）发送第一分组（300）。第一分组（300）包括通过重复N次（N> 1）的同步序列的每个样本而形成的分组前导序列（310）。第一分组（300）的剩余部分（320）通过以扩展因子P（P> 1）扩展其每个样本而形成。对于正常数据通信，无线设备（100）将天线方向图设置为具有定向天线方向图（204），并且使用定向天线方向图（204）发送第二分组。

10. 发明申请

WO2009016571A1 A BLOCK TRANSMISSION TECHNIQUE BASED ON SYMBOLS CONCATENATION 审中-公开
标题翻译：基于符号定义的块传输技术
公开(公告)号：WO2009016571A1
公开(公告)日：2009-02-05
申请号：PCT/IB2008/053005
申请日：2008-07-25
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , WANG, Dong , YANG, Jun , BIRRU, Dagnachew
发明人： WANG, Dong , YANG, Jun , BIRRU, Dagnachew
IPC分类号： H04L27/26
CPC分类号： H04L27/2621
摘要： A transmitter (200) for block transmissions includes a serial-to-parallel converter (240) for grouping data symbols into a number of M sub-blocks; a plurality of symbol phase rotation units (250-1, 250-M) for independently phase rotating each symbol in the M sub-blocks; a plurality of inverse fast Fourier transform (IFFT) units (260-1, 260-M) for transforming the phase rotated symbols into time domain symbols; and a parallel-to-serial converter (270) for concatenating the time domain symbols into a N-point time domain samples of an OFDM symbol.
摘要翻译：用于块传输的发射机（200）包括用于将数据符号分组成多个M个子块的串行到并行转换器（240）; 多个符号相位旋转单元（250-1,250-M），用于独立地相位旋转M个子块中的每个符号; 用于将相位旋转符号变换为时域符号的多个快速傅里叶逆变换（IFFT）单元（260-1,260-M）以及用于将时域符号并入OFDM符号的N点时域样本的并行到串行转换器（270）。

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