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11. 发明授权

US08724738B2 Multidimensional constellations for coded transmission 有权
标题翻译：用于编码传输的多维星座
公开(公告)号：US08724738B2
公开(公告)日：2014-05-13
申请号：US13425351
申请日：2012-03-20
申请人： Rabih Chrabieh , Ozgur Dural
发明人： Rabih Chrabieh , Ozgur Dural
IPC分类号： H04L27/28 , H04L27/36
CPC分类号： H04L1/0041 , H04L1/0058 , H04L1/0071 , H04L5/0007 , H04L5/0044 , H04L5/006
摘要： Techniques for rotating and transmitting multidimensional constellations are disclosed. A method for rotating a multidimensional constellation may include constructing a first rotation matrix, constructing a second rotation matrix, applying orthogonality constraints to the first and second rotation matrices; selecting an optimizing rotation matrix from the first and second rotation matrices; and rotating the multidimensional constellation using the optimizing rotation matrix. Constructing the first rotation matrix and second rotation matrices may include constructing a first column that includes first matrix dements based on the number of axes in the multidimensional constellation, and additional columns that include permutations of the first matrix elements.
摘要翻译：公开了用于旋转和传送多维星座的技术。旋转多维星座的方法可以包括构造第一旋转矩阵，构造第二旋转矩阵，将正交约束应用于第一和第二旋转矩阵; 从所述第一和第二旋转矩阵中选择优化旋转矩阵; 并使用优化旋转矩阵旋转多维星座。构造第一旋转矩阵和第二旋转矩阵可以包括基于多维星座图中的轴的数量构建包括第一矩阵度量的第一列，以及包括第一矩阵元素的排列的附加列。

12. 发明申请

US20140062733A1 METHOD FOR DECODING A SPATIALLY MULTIPLEXED DATA SIGNAL USING A MAXIMUM LIKELIHOOD DETECTION 有权
标题翻译：使用最大似然检测来解码空间多路复用数据信号的方法
公开(公告)号：US20140062733A1
公开(公告)日：2014-03-06
申请号：US13598161
申请日：2012-08-29
申请人： Rabih Chrabieh , Yang Liu
发明人： Rabih Chrabieh , Yang Liu
IPC分类号： H03M7/00
CPC分类号： H04L25/067 , H04L1/0048 , H04L1/005 , H04L1/0631 , H04L25/03891 , H04L2025/03426
摘要： The disclosure relates to a method for decoding a received signal in a MIMO communication system and in at least one layer, each layer carrying at least one data symbol belonging to a signal constellation. The method includes, for one of the at least one layer, a maximum likelihood detection step. This step includes: selecting one candidate value for the data symbol of the layer, and determining the Euclidian distance between the received signal Y and the data signal transmitted using said candidate value multiplied by said channel matrix H, weighted by the inverse of a noise covariance matrix C such as ∥Y−ΣiHixi∥C−12 expressed as: Σi≠n∥C−12|xi|2−2(HiHC−1Y−0.5Σj≠i,nHiHC−1Hjxj)xi*+∥Hn∥C−12|xn|2−2(HnHC−1Y−Σj≠nHnHC−1Hjxj)xn*=Σi≠nαiR(xi)2−2βiRxi+αnR(xn)2−2βnRxn+Σi≠nαiI(ℑxi)2−2βiIℑxi+αnI(ℑxn)2−2βnIℑxn. The terms depending on αk are computed by adding to each of them a predetermined constant depending on the size of the constellation of the layer k, called a constellation dependent constant.
摘要翻译：本公开涉及一种用于对MIMO通信系统中的接收信号进行解码的方法，并且在至少一个层中，每层承载属于信号星座的至少一个数据符号。对于所述至少一个层中的一个，所述方法包括最大似然检测步骤。该步骤包括：为层的数据符号选择一个候选值，并且确定接收信号Y与使用所述候选值发送的数据信号之间的欧几里德距离乘以所述信道矩阵H，由噪声协方差矩阵C，例如∥Y-SigmaiHixi | C-12，表示为：Sigmai <>n‖C-12 | xi | 2-2（HiHC-1Y-0.5Sigmaj nHnHC-1Hjxj）xn * = Sigmai

13. 发明授权

US08553790B2 Low power ultra wideband transceivers 有权
标题翻译：低功率超宽带收发器
公开(公告)号：US08553790B2
公开(公告)日：2013-10-08
申请号：US13357458
申请日：2012-01-24
申请人： Samir Soliman , Ozgur Dural , Krishnan Rajamani , Rabih Chrabieh
发明人： Samir Soliman , Ozgur Dural , Krishnan Rajamani , Rabih Chrabieh
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04B1/69 , H04B1/71635 , H04B1/71637 , H04B1/719
摘要： Low-power transmitter and/or receiver devices are provided by sacrificing time and/or frequency diversity in exchange for lower power consumption. When channel conditions indicate that time and/or frequency spreading are unnecessary for transmissions, a transmitter may enter into a power-conservation mode in which transmissions are performed using a time gating scheme or a time repetition scheme. In the time gating scheme, symbols are transmitting just once, rather than a plurality of times, but with increased transmission power. In the time repetition scheme, copies of the same symbol are transmitted a plurality of times on the same frequency on different symbol transmission periods, instead of being retransmitted on different frequencies on different symbol transmission periods. Consequently, the symbol can be generated once and stored for subsequent retransmission, thereby allowing some of the transmitter/receiver chain components can be operated at a lower duty cycle or processing speed to conserve power.
摘要翻译：通过牺牲时间和/或频率分集来提供低功率发射机和/或接收机设备，以换取更低的功耗。当信道条件指示时间和/或频率扩展对于传输是不必要的时，发射机可以进入其中使用时间选通方案或时间重复方案执行传输的功率节约模式。在时间选通方案中，符号只传输一次，而不是多次，但是传输功率增加。在时间重复方案中，相同符号的副本在不同的符号传输周期上以相同频率发送多次，而不是在不同的符号传输周期上在不同的频率上重发。因此，可以生成符号一次并存储以用于随后的重传，从而允许一些发送器/接收器链组件可以以较低的占空比或处理速度操作以节省功率。

14. 发明授权

US08428175B2 Quadrature modulation rotating training sequence 失效
标题翻译：正交调制旋转训练序列
公开(公告)号：US08428175B2
公开(公告)日：2013-04-23
申请号：US11684566
申请日：2007-03-09
申请人： Rabih Chrabieh
发明人： Rabih Chrabieh
IPC分类号： H04L27/00
CPC分类号： H04B17/0085 , H04B17/20
摘要： A system and method are provided for transmitting a rotating training sequence. A rotating training signal is generated in quadrature modulation transmitter. The rotating training signal includes training information sent via an in-phase (I) modulation path, as well as training information sent via a quadrature (Q) modulation path. The rotating training signal may be generated by initially sending training information via the I modulation path, and subsequently sending training information via the Q modulation path. The training information sent via the I modulation path may include a first symbol having a reference phase (e.g., 0 degrees or 180 degrees). Then, the training information sent via the Q modulation path would include a second symbol having a phase that is ±90 from the reference phase.
摘要翻译：提供了用于传送旋转训练序列的系统和方法。在正交调制发射机中产生旋转训练信号。旋转训练信号包括通过同相（I）调制路径发送的训练信息，以及通过正交（Q）调制路径发送的训练信息。可以通过经由I调制路径初始发送训练信息，并且随后经由Q调制路径发送训练信息来生成旋转训练信号。通过I调制路径发送的训练信息可以包括具有参考相位（例如，0度或180度）的第一符号。然后，通过Q调制路径发送的训练信息将包括具有与参考相位相差±90°的相位的第二符号。

15. 发明申请

US20120128035A1 LOW POWER ULTRA WIDEBAND TRANSCEIVERS 有权
标题翻译：低功率超宽带收发器
公开(公告)号：US20120128035A1
公开(公告)日：2012-05-24
申请号：US13357458
申请日：2012-01-24
申请人： Samir Soliman , Ozgur Dural , Krishnan Rajamani , Rabih Chrabieh
发明人： Samir Soliman , Ozgur Dural , Krishnan Rajamani , Rabih Chrabieh
IPC分类号： H04B1/713 , H04B1/69 , H04B1/06 , H04B1/02
CPC分类号： H04B1/69 , H04B1/71635 , H04B1/71637 , H04B1/719
摘要： Low-power transmitter and/or receiver devices are provided by sacrificing time and/or frequency diversity in exchange for lower power consumption. When channel conditions indicate that time and/or frequency spreading are unnecessary for transmissions, a transmitter may enter into a power-conservation mode in which transmissions are performed using a time gating scheme or a time repetition scheme. In the time gating scheme, symbols are transmitting just once, rather than a plurality of times, but with increased transmission power. In the time repetition scheme, copies of the same symbol are transmitted a plurality of times on the same frequency on different symbol transmission periods, instead of being retransmitted on different frequencies on different symbol transmission periods. Consequently, the symbol can be generated once and stored for subsequent retransmission, thereby allowing some of the transmitter/receiver chain components can be operated at a lower duty cycle or processing speed to conserve power.
摘要翻译：通过牺牲时间和/或频率分集来提供低功率发射机和/或接收机设备，以换取更低的功耗。当信道条件指示时间和/或频率扩展对于传输是不必要的时，发射机可以进入其中使用时间选通方案或时间重复方案执行传输的功率节约模式。在时间选通方案中，符号只传输一次，而不是多次，但是传输功率增加。在时间重复方案中，相同符号的副本在不同的符号传输周期上以相同频率发送多次，而不是在不同的符号传输周期上在不同的频率上重发。因此，可以生成符号一次并存储以用于随后的重传，从而允许一些发送器/接收器链组件可以以较低的占空比或处理速度操作以节省功率。

16. 发明授权

US08161453B2 Method and apparatus for implementing task management of computer operations 有权
标题翻译：实施计算机操作任务管理的方法和装置
公开(公告)号：US08161453B2
公开(公告)日：2012-04-17
申请号：US11280667
申请日：2005-11-15
申请人： Rabih Chrabieh
发明人： Rabih Chrabieh
IPC分类号： G06F9/44
CPC分类号： G06F9/4881
摘要： A development and runtime framework for applications that execute in real-time operating systems. Application development is enhanced through simple instructions that allow a programmer to declare functions and sets of functions as tasks and supertasks, respectively, and manage the execution of functions, tasks and supertasks with priorities. A compiler or pre-processor provides tools for generating the code for tasks and supertasks, and the management code for managing execution. Function calls may be made directly to functions within supertasks via respective entrypoints, and the tasks are managed based on the functions being invoked. Within a supertask, a higher priority function may be runnable while a lower priority function of that supertask is suspended. A cookie is used to recognize when a register update for a supertask may be omitted, enabling more efficient context switching.
摘要翻译：用于在实时操作系统中执行的应用程序的开发和运行时框架。通过简单的指令来增强应用程序开发，这些指令允许程序员分别将函数和函数集声明为任务和超级任务，并且管理具有优先级的功能，任务和超级任务的执行。编译器或预处理器提供用于生成任务和超级任务代码的工具，以及用于管理执行的管理代码。可以通过相应的入口点对超级任务内的功能直接进行功能调用，并且基于所调用的功能来管理任务。在超级块中，较高优先级的功能可以运行，而该超级任务的较低优先级功能被暂停。一个cookie用于识别何时可以省略超级任务的寄存器更新，从而实现更有效的上下文切换。

17. 发明授权

US08009750B2 Receiver window shaping in OFDM to mitigate narrowband interference 有权
标题翻译： OFDM中的接收机窗口整形以减轻窄带干扰
公开(公告)号：US08009750B2
公开(公告)日：2011-08-30
申请号：US11962709
申请日：2007-12-21
申请人： Rabih Chrabieh , Samir S. Soliman
发明人： Rabih Chrabieh , Samir S. Soliman
IPC分类号： H04L27/28
CPC分类号： H04J11/0036 , H04J11/0066 , H04L27/2649 , H04L27/2662
摘要： A receiver window for symbol extraction is provided. A symbol is spread across a plurality of sub-carriers of a frequency band for transmission. If the frequency band is affected by narrowband interference, the receiver window concentrates the narrowband interference energy to minimize its effect on distant sub-carriers within the frequency band. The receiver window is shaped for extracting the symbol from the frequency band, wherein the receiver window has a starting point before the start of the symbol. The receiver window overlaps a previous receiver window for the previous adjacent symbol on the same frequency band. The receiver window is shaped by overlapping and adding a channel impulse response segment from a zero-padded portion of the symbol to the beginning of the symbol and overlapping and adding a second portion from the previous zero-padded symbol (from the same frequency band) to the end of the symbol.
摘要翻译：提供了用于符号提取的接收器窗口。符号分布在用于传输的频带的多个子载波上。如果频带受到窄带干扰的影响，则接收机窗口集中了窄带干扰能量，以最小化其对频带内远距离子载波的影响。接收器窗口被成形为用于从频带提取符号，其中接收器窗口具有在符号开始之前的起始点。接收器窗口与先前在相同频带上的相邻符号的接收器窗口重叠。接收器窗口通过将信号脉冲响应段从符号的零填充部分重叠并添加到符号的开始并重叠并且从先前的零填充符号（从相同的频带）添加第二部分而被整形，到符号的末尾。

18. 发明授权

US07308268B2 Method and system for simulation and management of the resources of a mobile telephone network 有权
标题翻译：移动电话网络资源的仿真和管理方法和系统
公开(公告)号：US07308268B2
公开(公告)日：2007-12-11
申请号：US11559686
申请日：2006-11-14
申请人： Serge Barbosa da Torre , Rabih Chrabieh , Imad Fattouch
发明人： Serge Barbosa da Torre , Rabih Chrabieh , Imad Fattouch
IPC分类号： H04Q7/36
CPC分类号： H04W16/18 , H04W24/08
摘要： A method and a system for simulating and optimising the operating resources available in a coverage area of a mobile telephone network implemented by processing resources of at least one resource optimisation system and, can include definition, by an event-management module of the optimisation system, of a variation, called a perturbation, of at least one transmission of packets required within the network, from at least one statistical distribution map, selection of a set of cells determining a simulated zone, by means of an operating-resource control module, and then use of a routing algorithm to determine a routing path in the simulated zone, and to successively optimise the resources of the servers, definition by the event-management module, of data that represent at least one parameter relating to the transmission of the packets within each of the cells in the simulated zone, from amongst at least parameters of time-multiplexing of the packet, code-multiplexing of the packet, and the power required.
摘要翻译：一种用于模拟和优化通过处理至少一个资源优化系统的资源而实现的移动电话网络的覆盖区域中可用的操作资源的方法和系统，并且可以包括由优化系统的事件管理模块定义，通过操作资源控制模块，从至少一个统计分布图，确定模拟区域的一组小区的选择的至少一个传输网络中所需分组的变化的称为扰动的变体，以及然后使用路由算法来确定模拟区域中的路由路径，并且连续地优化由事件管理模块定义的服务器的资源，该数据表示与传输包内的至少一个参数有关的数据在模拟区域中的每个小区，从分组的时间复用的至少参数，分组的码复用和所需的电力。

19. 发明授权

US09813877B1 Accurate indoor positioning with cellular signals 有权
公开(公告)号：US09813877B1
公开(公告)日：2017-11-07
申请号：US14968880
申请日：2015-12-14
申请人： Rabih Chrabieh
发明人： Rabih Chrabieh
IPC分类号： H04W4/04 , H04W56/00 , H04W64/00
CPC分类号： H04W4/043 , H04W56/001 , H04W64/00
摘要： A system for accurate positioning of a communication devices includes a plurality of positioning cells configured for synchronizing to the cellular network and to each other, and for emitting positioning signals during time intervals proximal to time points at which the cellular network emits synchronization signals. In the manner, the positioning signals reach the communication device when the communication device's antenna is on for listening to a synchronization signal of the cellular network. Processing the times of arrival of the positioning signals by a server in communication with the communication device enables accurate positioning of the communication device.

20. 发明申请

US20160306027A1 System and Method for Estimating Time of Arrival (TOA) 审中-公开
标题翻译：估计到达时间的系统和方法（TOA）
公开(公告)号：US20160306027A1
公开(公告)日：2016-10-20
申请号：US14626734
申请日：2015-02-19
申请人： Rabih Chrabieh , Bogdan Franovici , Dirk Slock
发明人： Rabih Chrabieh , Bogdan Franovici , Dirk Slock
IPC分类号： G01S5/06 , H04B17/336 , G01S5/02 , H04L27/26
CPC分类号： G01S5/06 , G01S5/0215 , G01S5/0221 , G01S5/0252 , G01S11/02 , H04B17/336 , H04L27/2628
摘要： A technique is provided for estimating time of arrival of a signal transmitted as a pulse and received as a sum of pulses. The received signal is filtered with a novel filter that lowers the early side lobes of the received signal to noise level. A first energy rise point is identified at a point of the main lobe of the filtered received signal, at which the energy is higher than the noise by a predetermined level. Starting from the identification of the first energy rise points, the time of arrival is estimated via curve matching, in which the shape of the filtered received signal is matched to the shape of composed by a sum of one or more reference curves that are shifted both in time and in energy. The reference curves are found by applying to the transmitted signal the same filter applied to the received signal.
摘要翻译：提供了一种用于估计作为脉冲发送并作为脉冲总和接收的信号的到达时间的技术。接收的信号用新的滤波器滤波，该滤波器将接收到的信号的早期旁瓣降低到噪声水平。在滤波的接收信号的主瓣的点处识别第一能量上升点，在该点处能量高于噪声预定水平。从识别第一能量上升点开始，通过曲线匹配来估计到达时间，其中滤波的接收信号的形状与由两个或两个以上的两个在时间和精力上。通过将发送的信号应用于应用于接收信号的相同滤波器来找到参考曲线。

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