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1. 发明授权

US08554234B2 Method and procedures for automatic calibration of a wireless communications system simulation 有权
标题翻译：无线通信系统仿真自动校准的方法和程序
公开(公告)号：US08554234B2
公开(公告)日：2013-10-08
申请号：US12147072
申请日：2008-06-26
申请人： Gregory P. Polini , Stephanie Demers , Vikram Kaul
发明人： Gregory P. Polini , Stephanie Demers , Vikram Kaul
IPC分类号： H04W40/00
CPC分类号： H04W16/22 , H04B17/21 , H04B17/309 , H04B17/3912 , H04W24/06
摘要： A method of automatic calibration in which the simulation adapts itself to more closely resemble the actual network is provided. For a given network architecture and a probabilistic customer usage profile a simulation provides an estimate of key performance metrics. These simulated metrics are compared against actual measurements from the network. To the extent that they do not match within a prescribed tolerance, an iterative adaptive calibration procedure is used to perturb slightly the probabilistic model of network usage.
摘要翻译：提供了一种自动校准的方法，其中模拟自适应更接近于实际网络。对于给定的网络架构和概率客户使用情况，模拟提供关键性能指标的估计。将这些模拟指标与来自网络的实际测量进行比较。在规定的公差范围内它们不匹配的情况下，迭代自适应校准过程被用来轻微扰乱网络使用的概率模型。

2. 发明授权

US08385940B2 Modified overhead adjustment function 有权
标题翻译：修改开销调整功能
公开(公告)号：US08385940B2
公开(公告)日：2013-02-26
申请号：US13033178
申请日：2011-02-23
申请人： Gregory P. Pollini , Vikram Kaul , Stephanie Demers
发明人： Gregory P. Pollini , Vikram Kaul , Stephanie Demers
IPC分类号： H04W72/00 , H04W40/00 , H04W36/00 , H04W4/00 , H04B1/38 , H04B7/00 , H04B7/185
CPC分类号： H04W16/06 , H04W52/343
摘要： A MOAF algorithm is used to resize cells for balancing capacity. The MOAF algorithm bases its decision on a cell and all other cells which the algorithm decides are sufficiently close in a propagation sense to affect the results. The MOAF algorithm also automatically determines those cells in an area which are most heavily loaded and those cells which are lightly loaded. The MOAF algorithm will only decrease the size of a cell if it determines specific adjacent cells that are willing and able to accept the load, and the MOAF algorithm will increase the size of a cell only if there is a nearby heavily loaded cell that requires the removal of load. Moreover, the MOAF algorithm can be tuned (via the threshold parameter T) to shift the focus of the optimization from avoidance of coverage holes to the avoidance of creation of excessive handover legs. Because the changes are electrical rather than physical they can be deployed instantaneously via the network management system thus saving the cost of sending a field crew to the site. Moreover, it is possible to make these changes much more frequently than has been possible in the past thereby permitting the optimization of the network to be done in near real time to meet the temporal changes in the geographic distribution of customers.
摘要翻译： MOAF算法用于调整单元格的大小以平衡容量。 MOAF算法将其决定放在一个单元上，并且算法决定的所有其他单元在传播意义上足够接近以影响结果。 MOAF算法还自动确定那些最重负载的区域和那些轻载入的单元。如果MOAF算法确定了愿意并能够接受负载的特定相邻单元，则仅减小单元的大小，并且只有当存在附近需要重载的单元时，MOAF算法将增加单元的大小去除负载。此外，可以调整MOAF算法（通过阈值参数T）将优化的焦点从避免覆盖孔转移到避免产生过多的切换腿。因为这些变化是电而不是物理的，所以它们可以通过网络管理系统瞬时部署，从而节省了将现场工作人员送到现场的成本。此外，可以使这些变化比过去更频繁地进行，从而允许网络的优化在近实时地完成以满足客户的地理分布的时间变化。

3. 发明申请

US20090029651A1 Method and Procedures for Automatic Calibration of a Wireless Communications System Simulation 有权
标题翻译：无线通信系统仿真自动校准的方法和程序
公开(公告)号：US20090029651A1
公开(公告)日：2009-01-29
申请号：US12147072
申请日：2008-06-26
申请人： Gregory P. Polini , Stephanie Demers , Vikram Kaul
发明人： Gregory P. Polini , Stephanie Demers , Vikram Kaul
IPC分类号： H04B7/00
CPC分类号： H04W16/22 , H04B17/21 , H04B17/309 , H04B17/3912 , H04W24/06
摘要： Performance optimization of mobile wireless communication networks is complex and typically requires extensive offline modeling and simulation prior to deploying changes that may have unforeseen adverse effects on the live customer network. It is necessary to calibrate the simulation model against the actual network at a level of fidelity such that the engineer is confident that the simulation's response to network changes accurately reflects the results that would be experienced if those changes were deployed in an actual live network. This process is typically quite time consuming and requires significant case-by-case insight into the workings of the actual network as well as the simulation model. We have invented a method of automatic calibration in which the simulation adapts itself to more closely resemble the actual network. For a given network architecture and a probabilistic customer usage profile a simulation provides an estimate of key performance metrics. These simulated metrics are compared against actual measurements from the network. To the extent that they do not match within a prescribed tolerance, an iterative adaptive calibration procedure is used to perturb slightly the probabilistic model of network usage.
摘要翻译：移动无线通信网络的性能优化是复杂的，并且在部署可能对实时客户网络具有不可预见的不利影响的更改之前通常需要大量的离线建模和仿真。有必要以真实的级别对实际网络进行仿真模型的校准，这样工程师就可以肯定模拟对网络变化的响应准确地反映了在实际网络中部署了这些变化时会遇到的结果。这个过程通常是相当耗时的，并且需要对实际网络的运行以及仿真模型进行明显的逐个洞察。我们已经发明了一种自动校准的方法，其中仿真使其自身更接近实际网络。对于给定的网络架构和概率客户使用情况，模拟提供关键性能指标的估计。将这些模拟指标与来自网络的实际测量进行比较。在规定的公差范围内它们不匹配的情况下，迭代自适应校准过程被用来轻微扰乱网络使用的概率模型。

4. 发明授权

US08761175B2 Distributed method for minimum delay multi-hop data delivery in vehicular networks 有权
标题翻译：车载网络中最小延迟多跳数据传输的分布式方法
公开(公告)号：US08761175B2
公开(公告)日：2014-06-24
申请号：US12408221
申请日：2009-03-20
申请人： Ratul K. Guha , Wai Chen , Stephanie Demers , Jasmine Chennikara-Varghese
发明人： Ratul K. Guha , Wai Chen , Stephanie Demers , Jasmine Chennikara-Varghese
IPC分类号： H04L12/28 , H04J3/16 , G06F15/173
CPC分类号： G08G1/161 , H04L2012/40273 , H04W40/20
摘要： An inventive method for data delivery in a multi-hop vehicular network with multiple vehicles and intersections is presented. The method comprises, at each source vehicle, initiating packet flow, labeling packets with destination coordinates and a current location, and forwarding the packet flow, and at each intersection, selecting a header vehicle, computing a backlog indicator and listening for broadcasts with a matrix and delay information, updating the matrix in accordance with the backlog indicator if the matrix is present, otherwise initializing the matrix, forwarding the packet flow, and broadcasting the matrix from the header vehicle. In one embodiment, selection of the header vehicle is performed based on random countdown and vehicle ID. The method converges to the optimal (lowest latency) state irrespective of the initial starting point of the network and continues to tend towards the optimal state even as the network conditions alter.
摘要翻译：提出了一种在多车辆和交叉路口的多跳车辆网络中进行数据传输的创新方法。该方法包括：在每个源车辆处，发起分组流，标记具有目的地坐标和当前位置的分组，以及转发分组流，并且在每个交点处，选择头部车辆，计算积压指示符并用矩阵收听广播和延迟信息，如果矩阵存在，则根据积压指示符更新矩阵，否则初始化矩阵，转发分组流，以及从头部车辆广播矩阵。在一个实施例中，基于随机倒计时和车辆ID执行头部车辆的选择。该方法收敛到最优（最低等待时间）状态，而与网络的起始起始点无关，并且即使网络条件发生变化，也继续趋向于最佳状态。

5. 发明申请

US20100150110A1 Seamless Handoff Across Heterogeneous Access Networks Using a Handoff Controller in a Service Control Point 有权
标题翻译：在服务控制点使用切换控制器的异构接入网络中的无缝切换
公开(公告)号：US20100150110A1
公开(公告)日：2010-06-17
申请号：US12638765
申请日：2009-12-15
申请人： Ashutosh Dutta , Subir Das , Donald R. Lukacs , Tao Zhang , David C. Shrader , Raquel Morera Sempere , Stephanie Demers , Bryan J. Lyles , James Alfieri
发明人： Ashutosh Dutta , Subir Das , Donald R. Lukacs , Tao Zhang , David C. Shrader , Raquel Morera Sempere , Stephanie Demers , Bryan J. Lyles , James Alfieri
IPC分类号： H04W36/00
CPC分类号： H04W36/005 , H04W36/30 , H04W80/00
摘要： In a telecommunications network in which a mobile handset is capable of communicating in both an IP domain and a non-IP domain, the handoff of an existing communications session between the mobile handset and a fixed user is facilitated by a handoff controller implemented in a service control point. The handoff controller implements different handoff methods depending on the status of the fixed user and the transition of the mobile user. Additionally 802.21 Media Independent Handover Function in conjunction with SIP is used to facilitate handover between IP and Non-IP points in the system.
摘要翻译：在移动手机能够在IP域和非IP域中进行通信的电信网络中，移动手持机和固定用户之间的现有通信会话的切换由在服务中实现的切换控制器控制点。根据固定用户的状态和移动用户的转换，切换控制器实现不同的切换方法。另外，802.21媒体独立切换功能与SIP结合用于促进系统中IP和非IP点之间的切换。

6. 发明授权

US07664501B2 Seamless handoff across heterogeneous access networks using a handoff controller in a service control point 有权
标题翻译：使用服务控制点中的切换控制器在异构接入网络之间进行无缝切换
公开(公告)号：US07664501B2
公开(公告)日：2010-02-16
申请号：US11436742
申请日：2006-05-18
申请人： Ashutosh Dutta , Subir Das , Donald R. Lukacs , Tao Zhang , David C. Shrader , Raquel Morera Sempere , Stephanie Demers , Bryan J. Lyles , James Alfieri
发明人： Ashutosh Dutta , Subir Das , Donald R. Lukacs , Tao Zhang , David C. Shrader , Raquel Morera Sempere , Stephanie Demers , Bryan J. Lyles , James Alfieri
IPC分类号： H04Q7/20
CPC分类号： H04W36/005 , H04W36/30 , H04W80/00
摘要： In a telecommunications network in which a mobile handset is capable of communicating in both an IP domain and a non-IP domain, the handoff of an existing communications session between the mobile handset and a fixed user is facilitated by a handoff controller implemented in a service control point. The handoff controller implements different handoff methods depending on the status of the fixed user and the transition of the mobile user. Additionally 802.21 Media Independent Handover Function in conjunction with SIP is used to facilitate handover between IP and Non-IP points in the system.
摘要翻译：在移动手机能够在IP域和非IP域中进行通信的电信网络中，移动手持机和固定用户之间的现有通信会话的切换由在服务中实现的切换控制器控制点。根据固定用户的状态和移动用户的转换，切换控制器实现不同的切换方法。另外，802.21媒体独立切换功能与SIP结合用于促进系统中IP和非IP点之间的切换。

7. 发明申请

US20060234714A1 Modified overhead adjustment function 有权
公开(公告)号：US20060234714A1
公开(公告)日：2006-10-19
申请号：US11342100
申请日：2006-01-27
申请人： Gregory Pollini , Vikram Kaul , Stephanie Demers
发明人： Gregory Pollini , Vikram Kaul , Stephanie Demers
IPC分类号： H04Q7/20
CPC分类号： H04W16/06 , H04W52/343
摘要： A MOAF algorithm is used to resize cells for balancing capacity. The MOAF algorithm bases its decision on a cell and all other cells which the algorithm decides are sufficiently close in a propagation sense to affect the results. The MOAF algorithm also automatically determines those cells in an area which are most heavily loaded and those cells which are lightly loaded. The MOAF algorithm will only decrease the size of a cell if it determines specific adjacent cells that are willing and able to accept the load, and the MOAF algorithm will increase the size of a cell only if there is a nearby heavily loaded cell that requires the removal of load. Moreover, the MOAF algorithm can be tuned (via the threshold parameter T) to shift the focus of the optimization from avoidance of coverage holes to the avoidance of creation of excessive handover legs. Because the changes are electrical rather than physical they can be deployed instantaneously via the network management system thus saving the cost of sending a field crew to the site. Moreover, it is possible to make these changes much more frequently than has been possible in the past thereby permitting the optimization of the network to be done in near real time to meet the temporal changes in the geographic distribution of customers.

8. 发明授权

US06771934B2 Methods and systems for reducing interference across coverage cells 有权
标题翻译：减少覆盖单元间干扰的方法和系统
公开(公告)号：US06771934B2
公开(公告)日：2004-08-03
申请号：US09884637
申请日：2001-06-19
申请人： Stephanie Demers , Paul G. Zablocky , Shimon Moshavi
发明人： Stephanie Demers , Paul G. Zablocky , Shimon Moshavi
IPC分类号： H04B100
CPC分类号： H04W72/08 , H04B1/7107 , H04B2201/70702 , H04W24/02
摘要： Methods and systems are provided for reducing interference across coverage cells using base stations interconnected by a packet network. A wireless device monitors the channel signal strength of its serving cell and its neighboring cell. The serving cell collects measurements from the wireless devices within its cell and informs its neighboring cell when one of the wireless device may be causing significant interference to the neighboring cell. The neighboring cell collects this information and executes a multi-user detection and cancellation algorithm on a subset of these interfering wireless devices.
摘要翻译：提供了方法和系统，用于通过使用由分组网络互连的基站来减少跨覆盖小区的干扰。无线设备监视其服务小区及其相邻小区的信道信号强度。服务小区从其小区内的无线设备收集测量值，并且当无线设备之一可能对相邻小区造成显着干扰时通知其相邻小区。相邻小区收集该信息并在这些干扰无线设备的子集上执行多用户检测和消除算法。

9. 发明授权

US06233451B1 Spot beam selection in a mobile satellite communication system 失效
标题翻译：移动卫星通信系统中的射束选择
公开(公告)号：US06233451B1
公开(公告)日：2001-05-15
申请号：US09115096
申请日：1998-07-13
申请人： Anthony Noerpel , Chandra Joshi , Michael Parr , Zhengping Gao , Stephanie Demers
发明人： Anthony Noerpel , Chandra Joshi , Michael Parr , Zhengping Gao , Stephanie Demers
IPC分类号： H04Q720
CPC分类号： H04B7/2125 , H04B7/18517 , H04B7/18539 , H04B7/18543 , H04B7/18558 , H04B7/18567 , H04B7/18571 , H04B7/1858 , H04B7/18582 , H04B7/19 , H04B7/2041 , H04W28/14 , H04W52/0203 , H04W52/0216 , H04W72/0413 , H04W72/042 , H04W74/00 , H04W76/10 , H04W76/25 , H04W80/00 , H04W84/06 , Y02D70/1222 , Y02D70/164 , Y02D70/20 , Y02D70/446
摘要： An access terminal for initiating spot beam selection in a satellite communication system, in which the access terminal includes a receiver for measuring the received signal strength (RSS) of a multiplicity of radio frequency communication spot beam links. The access terminal is further provided with a microcontroller for comparing the received signal strengths from each of the multiplicity of spot beams to initiate information communication via a communication channel of the satellite communication system. In a described embodiment, the controller of the access terminal compares seven spot beam links to determine whether to initiate information communication with one of the seven spot beams received. Additionally, a memory coupled to the controller of the access terminal is used for storing spot beam identification information including the spot beam links assigned to the access terminal via the satellite communication system. The selection procedure employed by the system and method described facilitate a rapid selection of an appropriate spot beam identified from the multiplicity of radio frequency spot beam links received at a mobile access terminal.
摘要翻译：一种用于在卫星通信系统中发起点波束选择的接入终端，其中接入终端包括用于测量多个射频通信点波束链路的接收信号强度（RSS）的接收机。接入终端还设置有微控制器，用于比较来自多个点波束中的每一个的接收信号强度，以通过卫星通信系统的通信信道发起信息通信。在所描述的实施例中，接入终端的控制器比较七个点波束链路，以确定是否发起与所接收的七个点波束中的一个的信息通信。此外，耦合到接入终端的控制器的存储器用于存储包括经由卫星通信系统分配给接入终端的点波束链路的点波束识别信息。所述系统采用的选择过程和方法有助于快速选择从在移动接入终端处接收的多个射频点波束链路识别的适当的点波束。

10. 发明授权

US07920867B2 Modified overhead adjustment function 有权
标题翻译：修改开销调整功能
公开(公告)号：US07920867B2
公开(公告)日：2011-04-05
申请号：US11342100
申请日：2006-01-27
申请人： Gregory P. Pollini , Vikram Kaul , Stephanie Demers
发明人： Gregory P. Pollini , Vikram Kaul , Stephanie Demers
IPC分类号： H04W36/00 , H04W72/00 , H04W40/00 , H04W4/00
CPC分类号： H04W16/06 , H04W52/343
摘要： A MOAF algorithm is used to resize cells for balancing capacity. The MOAF algorithm bases its decision on a cell and all other cells which the algorithm decides are sufficiently close in a propagation sense to affect the results. The MOAF algorithm also automatically determines those cells in an area which are most heavily loaded and those cells which are lightly loaded. The MOAF algorithm will only decrease the size of a cell if it determines specific adjacent cells that are willing and able to accept the load, and the MOAF algorithm will increase the size of a cell only if there is a nearby heavily loaded cell that requires the removal of load. Moreover, the MOAF algorithm can be tuned (via the threshold parameter T) to shift the focus of the optimization from avoidance of coverage holes to the avoidance of creation of excessive handover legs. Because the changes are electrical rather than physical they can be deployed instantaneously via the network management system thus saving the cost of sending a field crew to the site. Moreover, it is possible to make these changes much more frequently than has been possible in the past thereby permitting the optimization of the network to be done in near real time to meet the temporal changes in the geographic distribution of customers.
摘要翻译： MOAF算法用于调整单元格的大小以平衡容量。 MOAF算法将其决定放在一个单元上，并且算法决定的所有其他单元在传播意义上足够接近以影响结果。 MOAF算法还自动确定那些最重负载的区域和那些轻载入的单元。如果MOAF算法确定了愿意并能够接受负载的特定相邻单元，则仅减小单元的大小，并且只有当存在附近需要重载的单元时，MOAF算法将增加单元的大小去除负载。此外，可以调整MOAF算法（通过阈值参数T）将优化的焦点从避免覆盖孔转移到避免产生过多的切换腿。因为这些变化是电而不是物理的，所以它们可以通过网络管理系统瞬时部署，从而节省了将现场工作人员送到现场的成本。此外，可以使这些变化比过去更频繁地进行，从而允许网络的优化在近实时地完成以满足客户的地理分布的时间变化。

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