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1. 发明授权

US08099098B2 Methods and apparatus for planning wireless data networks using analytical modeling of user level performance 有权
标题翻译：使用用户级别性能分析建模来规划无线数据网络的方法和装置
公开(公告)号：US08099098B2
公开(公告)日：2012-01-17
申请号：US10422286
申请日：2003-04-24
申请人： Simon C. Borst , Krishnan Kumaran , Kavita Ramanan , Philip A. Whiting
发明人： Simon C. Borst , Krishnan Kumaran , Kavita Ramanan , Philip A. Whiting
IPC分类号： H04W40/00
CPC分类号： H04W16/18 , H04W24/00 , H04W28/18
摘要： Techniques and systems for planning of wireless networks are described. A system according to an aspect of the present invention receives inputs describing traffic statistics for a wireless network and computes network specifications. The system uses the traffic statistics and network specifications as inputs to a computationally tractable model used to compute parameters for the user level performance of the wireless network. The model may suitably be a processor sharing queuing model. The model employed by the planning system allows analytical solution for the desired user level parameters, given the characteristics and conditions entered as inputs and the intended network layout characteristics. Once a set of user level performance parameters has been computed, the values of the parameters are examined to determine if they meet predetermined requirements, in an iterative process continuing until a set of specifications has been developed that produces parameters meeting the requirements.
摘要翻译：描述了无线网络规划的技术和系统。根据本发明的一个方面的系统接收描述无线网络的流量统计的输入并计算网络规范。该系统使用流量统计和网络规范作为用于计算用于无线网络的用户级性能的参数的计算容易模型的输入。该模型可以适当地是处理器共享排队模型。考虑到作为输入输入的特性和条件以及预期的网络布局特性，计划系统采用的模型允许针对所需用户级别参数的分析解决方案。一旦已经计算出一组用户级性能参数，则检查参数的值以确定它们是否满足预定的要求，在迭代过程中持续直到已经开发出一组规范来产生满足要求的参数。

2. 发明授权

US6134442A Controlling operations in a cellular system using neighbor association-based cost values 失效
标题翻译：使用基于邻居关联的成本值来控制蜂窝系统中的操作
公开(公告)号：US6134442A
公开(公告)日：2000-10-17
申请号：US35006
申请日：1998-03-05
申请人： Simon C. Borst , Terry Si-Fong Cheng , Sudheer A. Grandhi , Joe Huang , Colin L. Kahn , Krishnan Kumaran , Bulin B. Zhang
发明人： Simon C. Borst , Terry Si-Fong Cheng , Sudheer A. Grandhi , Joe Huang , Colin L. Kahn , Krishnan Kumaran , Bulin B. Zhang
IPC分类号： H04M15/00 , H04M3/00 , H04W16/10 , H04J1/16 , H04Q7/00
CPC分类号： H04W16/10
摘要： Operations in a cellular system are controlled based on cost values that are generated using neighbor association. In neighbor association, each cost value corresponds to a cost of assigning a candidate channel to a first cell in the cellular system, assuming that the candidate channel is already assigned to a second cell in the cellular system and each cost value is based on an average power attenuation for all of the cells in the cellular system that share the same tier as the second cell with respect to the first cell, wherein the average power attenuation is based on the reuse distances between the first cell and the cells in the same tier. In one embodiment, the cost values are used in a cost-function-based dynamic channel assignment (DCA) algorithm that is, but does not have to be, applied to a list of candidate channels generated using a measurement-based DCA algorithm.
摘要翻译：基于使用邻居关联生成的成本值来控制蜂窝系统中的操作。在邻居关联中，每个成本值对应于将候选信道分配给蜂窝系统中的第一小区的成本，假设候选信道已经被分配给蜂窝系统中的第二小区，并且每个成本值基于平均值所述蜂窝系统中与第一小区共享与第二小区相同的层的所有小区的功率衰减，其中平均功率衰减基于第一小区与同一层中的小区之间的重用距离。在一个实施例中，成本值被用在基于成本函数的动态信道分配（DCA）算法中，该算法是但不是必须被应用于使用基于测量的DCA算法生成的候选信道的列表。

3. 发明授权

US06496490B1 Method for dynamically allocating carriers in a wireless packet network, with reuse of carriers 失效
标题翻译：用于在无线分组网络中动态分配载波的方法，其中使用载波
公开(公告)号：US06496490B1
公开(公告)日：2002-12-17
申请号：US09112547
申请日：1998-07-09
申请人： Daniel Matthew Andrews , Simon C. Borst , Francis Dominique , Predrag Jelenkovic , Krishnan Kumaran , Philip Alfred Whiting
发明人： Daniel Matthew Andrews , Simon C. Borst , Francis Dominique , Predrag Jelenkovic , Krishnan Kumaran , Philip Alfred Whiting
IPC分类号： H04Q700
CPC分类号： H04W16/10 , H04W28/14 , H04W28/16 , H04W72/00 , H04W88/08
摘要： We disclose a method of dynamic channel assignment for wireless transmission systems that employ time or frequency multiplexing, or both time and frequency multiplexing. The invention is specifically addressed to the problem of avoiding interference in the channels of such systems. In a broad aspect, the invention involves partitioning base stations of a network into non-interfering sets. Channels are allocated to the non-interfering sets according to need. Stages of channel reallocation take place periodically. The reallocation takes place through coordinated activity by the base stations. That is, the channel reallocation is carried out in response to information that is exchanged between base stations, or it is centrally directed by the network in response to information passed to the network by the base stations.
摘要翻译：我们公开了采用时间或频率复用或时间和频率复用的无线传输系统的动态信道分配方法。本发明特别涉及避免这种系统的信道中的干扰的问题。在广泛的方面，本发明涉及将网络的基站划分为非干扰集合。信道根据需要分配给非干扰集。频道重新分配的阶段定期进行。重新分配通过基站的协调活动进行。也就是说，响应于在基站之间交换的信息来执行信道重新分配，或者响应于基站传送到网络的信息，它被网络集中指导。

4. 发明授权

US6154655A Flexible channel allocation for a cellular system based on a hybrid measurement-based dynamic channel assignment and a reuse-distance criterion algorithm 失效
标题翻译：基于混合测量的动态信道分配和重用距离标准算法的蜂窝系统的灵活信道分配
公开(公告)号：US6154655A
公开(公告)日：2000-11-28
申请号：US34923
申请日：1998-03-05
申请人： Simon C. Borst , Sudheer A. Grandhi , Joe Huang , Colin L. Kahn , Krishnan Kumaran , Bulin B. Zhang
发明人： Simon C. Borst , Sudheer A. Grandhi , Joe Huang , Colin L. Kahn , Krishnan Kumaran , Bulin B. Zhang
IPC分类号： H04W16/10 , H04Q7/20 , H04B7/00
CPC分类号： H04W16/10 , H04W24/10 , H04W72/085
摘要： In a cellular system, channels are assigned for new calls using a flexible channel allocation algorithm that is a hybrid of a measurement-based dynamic channel assignment (MBDCA) algorithm and a reuse-distance criterion algorithm, such as a cost-function-based DCA (CFBDCA). In one embodiment, the MBDCA algorithm is implemented at each cell site in the cellular system and generates a list of candidate channels for each new call. The list is transmitted to the mobile switching center (MSC), which implements the CFBDCA algorithm to select a particular channel from the list of candidate channels for the new call.
摘要翻译：在蜂窝系统中，使用灵活的信道分配算法将信道分配给新呼叫，该灵活信道分配算法是基于测量的动态信道分配（MBDCA）算法和重用距离标准算法（例如基于成本函数的DCA）的混合（CFBDCA）。在一个实施例中，在蜂窝系统中的每个小区站点实现MBDCA算法，并为每个新呼叫生成候选信道的列表。该列表被发送到移动交换中心（MSC），移动交换中心（MSC）实现CFBDCA算法以从新呼叫的候选信道列表中选择特定信道。

5. 发明授权

US06119011A Cost-function-based dynamic channel assignment for a cellular system 失效
标题翻译：基于成本函数的蜂窝系统的动态信道分配
公开(公告)号：US06119011A
公开(公告)日：2000-09-12
申请号：US35453
申请日：1998-03-05
申请人： Simon C. Borst , Sudheer A. Grandhi , Joe Huang , Colin L. Kahn , Krishnan Kumaran , Bulin B. Zhang
发明人： Simon C. Borst , Sudheer A. Grandhi , Joe Huang , Colin L. Kahn , Krishnan Kumaran , Bulin B. Zhang
IPC分类号： H04M15/00 , H04W16/10 , H04Q7/20
CPC分类号： H04W16/10 , H04W28/16
摘要： In a cellular system, channels are assigned for new calls using a cost-function-based dynamic channel assignment (CFBDCA) algorithm. In one embodiment, the CFBDCA algorithm is implemented in the cellular system's mobile switching center (MSC), which maintains a database containing one or more cost tables and a busy channel table. The entries in the cost tables reflect the costs of using a candidate channel in one particular cell of the cellular system, assuming that the channel is already being used in another particular cell. The entries in the busy channel table identify which channels are currently being used in which cells. The CFBDCA algorithm uses the cost tables and the busy channel table to generate cost of reusing the channel (CORC) values. Depending on the implementation, the CFBDCA algorithm of the present invention may or may not be used in conjunction with a measurement-based DCA (MBDCA) algorithm. If so, then the CFBDCA algorithm may be applied to a list of candidate channels generated using the MBDCA algorithm.
摘要翻译：在蜂窝系统中，使用基于成本函数的动态信道分配（CFBDCA）算法将信道分配给新的呼叫。在一个实施例中，在蜂窝系统的移动交换中心（MSC）中实现CFBDCA算法，其维护包含一个或多个成本表和繁忙信道表的数据库。成本表中的条目反映了在蜂窝系统的一个特定小区中使用候选信道的成本，假设信道已经在另一特定小区中使用。忙通道表中的条目标识当前在哪些信道中使用哪些信道。 CFBDCA算法使用成本表和忙信道表来生成重用信道（CORC）值的成本。根据实现，本发明的CFBDCA算法可以或可以不与基于测量的DCA（MBDCA）算法结合使用。如果是这样，则可以将CFBDCA算法应用于使用MBDCA算法生成的候选信道的列表。

6. 发明授权

US10401164B2 Sensor network design and inverse modeling for reactor condition monitoring 有权
公开(公告)号：US10401164B2
公开(公告)日：2019-09-03
申请号：US14037953
申请日：2013-09-26
申请人： Limin Song , Krishnan Kumaran , Bhaskar Sengupta , Jingbo Wang
发明人： Limin Song , Krishnan Kumaran , Bhaskar Sengupta , Jingbo Wang
IPC分类号： G01B21/20 , G05B23/02
摘要： Methods and systems for detecting a condition within a component of a process plant, including obtaining a first and second set of parameter measurements from a first and second plurality of sensor locations along a first dimension of an outside surface of a component, processing the first and second set of parameter measurements to develop a continuous surface condition profile of the component using a predetermined model. The predetermined model includes a forward solution to an equation describing the condition and is linearly separable in at least two dimensions corresponding to the first and second dimension. The model includes an inverse solution to the equation to provide a set of coefficients corresponding to a set of basis functions of the forward solution based on the first and second set of parameter measurements.

7. 发明授权

US09598947B2 Automatic drilling advisory system based on correlation model and windowed principal component analysis 有权
公开(公告)号：US09598947B2
公开(公告)日：2017-03-21
申请号：US13386610
申请日：2010-06-28
申请人： Jingbo Wang , Krishnan Kumaran , Peng Xu , Steven F. Sowers , Lei Wang , Jeffrey R. Bailey , Erika A. O. Biediger , Vishwas Gupta , Narasimha-Rao V. Bangaru , Swarupa S. Bangaru
发明人： Jingbo Wang , Krishnan Kumaran , Peng Xu , Steven F. Sowers , Lei Wang , Jeffrey R. Bailey , Erika A. O. Biediger , Vishwas Gupta , Narasimha-Rao V. Bangaru
IPC分类号： G06F17/50 , E21B44/00
CPC分类号： E21B44/00
摘要： Methods and systems for controlling drilling operations include using a statistical model to identify at least two controllable drilling parameters having significant correlation to one or more drilling performance measurements. The methods and systems further generate operational recommendations for at least two controllable drilling parameters based at least in part on the statistical model. The operational recommendations are selected to optimize one or more drilling performance measurements.

8. 发明授权

US09328578B2 Method for automatic control and positioning of autonomous downhole tools 有权
标题翻译：自动井下工具自动控制和定位方法
公开(公告)号：US09328578B2
公开(公告)日：2016-05-03
申请号：US13989726
申请日：2011-11-17
申请人： Krishnan Kumaran , Niranjan A. Subrahmanya , Pavlin B. Entchev , Randy C. Tolman , Renzo Moises Angeles Boza
发明人： Krishnan Kumaran , Niranjan A. Subrahmanya , Pavlin B. Entchev , Randy C. Tolman , Renzo Moises Angeles Boza
IPC分类号： E21B23/00 , E21B41/00 , E21B43/116 , E21B47/09
CPC分类号： E21B23/00 , E21B41/00 , E21B43/116 , E21B47/0905
摘要： Methods and apparatus for actuating a downhole tool in wellbore includes acquiring a CCL data set or log from the wellbore that correlates recorded magnetic signals with measured depth, and selects a location within the wellbore for actuation of a wellbore device. The CCL log is then downloaded into an autonomous tool. The tool is programmed to sense collars as a function of time, thereby providing a second CCL log. The autonomous tool also matches sensed collars with physical signature from the first CCL log and then self-actuates the wellbore device at the selected location based upon a correlation of the first and second CCL logs.
摘要翻译：用于在井筒中致动井下工具的方法和装置包括从井眼获取CCL数据集或记录，其将记录的磁信号与测量的深度相关联，并且选择井筒内的位置以致动井筒装置。然后将CCL日志下载到自主工具中。该工具被编程为感测作为时间的函数的项圈，从而提供第二个CCL日志。自主工具还将感测到的套环与来自第一CCL日志的物理签名相匹配，然后基于第一和第二CCL日志的相关性自动致动所选位置处的井眼设备。

9. 发明申请

US20140172370A1 FLAME INSTABILITY DETECTION AND IDENTIFICATION OF UNSTABLE BURNERS IN INDUSTRIAL FURNACES 审中-公开
标题翻译：火焰不稳定性检测和识别工业炉中不稳定的燃烧器
公开(公告)号：US20140172370A1
公开(公告)日：2014-06-19
申请号：US14101626
申请日：2013-12-10
申请人： Weichang Li , Gary T. Dobbs , Limin Song , Peng Xu , Krishnan Kumaran , Mark M. Disko , Jeffrey M. Grenda , San Chhotray , Amy B. Herhold , Duane R. McGregor
发明人： Weichang Li , Gary T. Dobbs , Limin Song , Peng Xu , Krishnan Kumaran , Mark M. Disko , Jeffrey M. Grenda , San Chhotray , Amy B. Herhold , Duane R. McGregor
IPC分类号： F23N5/24
CPC分类号： F23N5/242 , G05B23/024
摘要： Systems and method for identifying an unstable subset of burners from among a plurality of burners in a furnace are also disclosed. At least one measurement is obtained from each of the plurality of burners. An instability associated with the furnace is detected. An unstable signal matrix associated with the instability is computed based on the at least one measurement from each of the plurality of burners. An unstable subset of burners is identified based at least in part on the unstable signal matrix.
摘要翻译：还公开了用于从炉中的多个燃烧器中识别燃烧器的不稳定子集的系统和方法。从多个燃烧器中的每一个获得至少一个测量值。检测到与炉相关的不稳定性。基于来自多个燃烧器中的每一个的至少一个测量来计算与不稳定性相关联的不稳定信号矩阵。至少部分地基于不稳定的信号矩阵来识别燃烧器的不稳定子集。

10. 发明申请

US20100254219A1 Detection of Features in Seismic Images 有权
标题翻译：地震图像特征检测
公开(公告)号：US20100254219A1
公开(公告)日：2010-10-07
申请号：US12741133
申请日：2008-10-31
申请人： Krishnan Kumaran , Jingbo Wang
发明人： Krishnan Kumaran , Jingbo Wang
IPC分类号： G01V1/36 , G01V1/28
CPC分类号： G01V1/288
摘要： A computer implemented method for the detection of features such as faults or channels in seismic images. First, edges are detected in a smoothed seismic image (106). To detect a fault line, an image intensity of the edges is projected in multiple spatial directions, for example by performing a Radon transform (118). The directions of maximum intensity are used to define a fault line (124c). To detect channels, smooth curves are identified within the detected edges (810). Sets of parallel smooth curves (812a) are then identified and used to define channels (812).
摘要翻译：一种用于检测地震图像中的故障或通道等特征的计算机实现方法。首先，在平滑的地震图像中检测边缘（106）。为了检测故障线，例如通过执行Radon变换（118），沿多个空间方向投影边缘的图像强度。最大强度的方向用于定义断层线（124c）。为了检测通道，在检测到的边缘内识别平滑曲线（810）。然后识别并行平滑曲线组（812a）并用于定义通道（812）。

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