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1. 发明授权

US5991629A Cellular networks with spare base and satellite stations 失效
标题翻译：具有备用基站和卫星站的蜂窝网络
公开(公告)号：US5991629A
公开(公告)日：1999-11-23
申请号：US943291
申请日：1997-10-14
申请人： Prathima Agrawal , Ashok N. Rudrapatna
发明人： Prathima Agrawal , Ashok N. Rudrapatna
IPC分类号： H04B1/74 , H04B7/185 , H04B7/26 , H04W16/06 , H04M11/00
CPC分类号： H04W16/06 , H04W52/0225
摘要： A cellular network includes a control station and a network of base stations installed one per cell with which one or more mobile stations can communicate as they roam through a cell. Redundantly deployed spare base stations are introduced along with the primary base station at a central area of each cell. The redundantly deployed spare base stations handle new calls when the associated primary base station is overloaded, participate in retransmission of data lost due to degraded channel conditions and congestion in the network, and assist in handoffs. Primary and spare satellite stations are deployed in regions marked by hills or valleys to augment the communicative capabilities of the primary and spare base stations.
摘要翻译：蜂窝网络包括控制站和每个小区安装一个基站的网络，一个或多个移动站在漫游到一个小区时可以与之通信。在每个小区的中心区域，主基站与主基站一起引入冗余部署的备用基站。当相关联的主基站过载时，冗余部署的备用基站处理新呼叫，参与由于信道状况恶化和网络拥塞而丢失的数据的重传，并且协助切换。主要和备用卫星站部署在由丘陵或山谷标记的地区，以增强主要和备用基站的交流能力。

2. 发明授权

US06320847B1 Method and apparatus for reduction of call setup time using anticipation technique for multimedia applications in widely distributed networks 失效
标题翻译：用于在广泛分布式网络中用于多媒体应用的预期技术来减少呼叫建立时间的方法和装置
公开(公告)号：US06320847B1
公开(公告)日：2001-11-20
申请号：US08972617
申请日：1997-11-18
申请人： Dharma P. Agrawal , Prathima Agrawal , Ashok N. Rudrapatna
发明人： Dharma P. Agrawal , Prathima Agrawal , Ashok N. Rudrapatna
IPC分类号： G01R3108
CPC分类号： H04Q3/66 , H04Q3/002 , H04Q2213/1307 , H04Q2213/13095 , H04Q2213/13103 , H04Q2213/13106 , H04Q2213/13141 , H04Q2213/13176 , H04Q2213/13204 , H04Q2213/1331 , H04Q2213/13339
摘要： In a widely distributed digital communication network call delays and eventual outcome are anticipated (i.e., expected call outcome) at the initiation of a call at an originating terminal and the call is completed by signal switching to its destination terminal and by decreasing the number of related message transfers between network controllers and hubs required to complete the balance of administrative refinements of the call connection. The routing steps for setting up the call trajectory to the destination hub are completed immediately before the administrative steps, such as authentication, access control, bandwidth availability etc., are performed. Administrative refinements subsequent to the preliminary call set up are performed in a distributive manner. Administrative and capacity items are determined and completed post route determination and computed or accessed in parallel making this information available for a final call set up. If this information is adverse the call is immediately terminated. In one aspect the processors for administrative and capacity determination are connected in a parallel manner and work concurrently.
摘要翻译：在广泛分布的数字通信网络中，呼叫延迟和最终结果是预期的（即预期的呼叫结果），在起始终端发起呼叫，并且通过信号切换到目的地终端完成呼叫，并通过减少相关的数量网络控制器和集线器之间的消息传输是完成呼叫连接的管理改进的平衡所必需的。在执行诸如认证，访问控制，带宽可用性等的管理步骤之前，立即完成用于将呼叫轨迹设置到目的地集线器的路由步骤。在初步呼叫建立之后的管理细化以分配方式执行。管理和容量项目确定并完成路线后确定并且并行计算或访问，使得该信息可用于最终呼叫建立。如果该信息不利，则呼叫立即终止。一方面，用于管理和容量确定的处理器以并行方式连接并同时工作。

3. 发明授权

US06188905B1 Intelligent dynamic channel allocation scheme for a mobile communications network 失效
标题翻译：用于移动通信网络的智能动态信道分配方案
公开(公告)号：US06188905B1
公开(公告)日：2001-02-13
申请号：US08941043
申请日：1997-09-30
申请人： Ashok N. Rudrapatna , Dharma P. Agrawal , Prathima Agrawal
发明人： Ashok N. Rudrapatna , Dharma P. Agrawal , Prathima Agrawal
IPC分类号： H04Q722
CPC分类号： H04W28/26 , H04W8/18 , H04W24/00 , H04W36/245 , H04W36/32 , H04W72/048
摘要： Intelligent allocation of wireless resources can help avoid the problems of dropped calls in a mobile communications network. A service for allocating resources is designed to develop profiles of subscribers' mobility. That is, profiles are developed for routes, traveled by subscribers at certain days and times. For example, some subscribers commute to and from work at relatively fixed times. By compiling this information in the profile and tracking the movement of the subscriber, the mobile network can anticipate the subscriber's movement into a next cell. Thus, wireless resources in the next cell can be reserved prior to the anticipated handover of an ongoing call involving the subscriber. Thus, uninterrupted service can be maintained and dropped calls can be avoided.
摘要翻译：无线资源的智能分配可以帮助避免移动通信网络中掉话的问题。用于分配资源的服务旨在开发用户流动性的配置文件。也就是说，个人资料是针对路线开发的，由用户在某些日子和时间旅行。例如，一些用户在相对固定的时间上下班。通过在配置文件中编译该信息并跟踪用户的移动，移动网络可以预期用户进入下一个小区。因此，可以在涉及用户的正在进行的呼叫的预期切换之前保留下一个小区中的无线资源。因此，可以保持不间断的服务，并且可以避免掉话。

4. 发明授权

US6052598A Method for predicting the location of a mobile station in a mobile communications network 失效
标题翻译：用于预测移动台在移动通信网络中的位置的方法
公开(公告)号：US6052598A
公开(公告)日：2000-04-18
申请号：US941231
申请日：1997-09-30
申请人： Ashok N. Rudrapatna , Dharma P. Agrawal , Prathima Agrawal
发明人： Ashok N. Rudrapatna , Dharma P. Agrawal , Prathima Agrawal
IPC分类号： H04W64/00 , H04Q7/20
CPC分类号： H04W64/00 , H04W4/028
摘要： The approximate position of a mobile station in a cell can be predicted by measuring the signal strength between the mobile station and the base station of the cell in which it is located and the base stations of the neighboring cells. After a series of instantaneous signal strength measurements have been collected, the velocity and direction of the mobile unit can be determined. Based on the velocity and direction of the mobile unit, future locations of the mobile unit can be predicted including the projected signal strength between the mobile station and the base stations of the cell in which it is located and neighboring cells. Analyzing the projected signal strength values, the time when the mobile unit will require handover to a neighboring cell can be determined and if desired, resources in a neighboring cell can be allocated in anticipation of the mobile unit being handed over to that cell. New signal strength measurements are periodically collected and new projections are made to increase the accuracy of the estimate of when handover will occur and to what neighboring cell.
摘要翻译：移动站在小区中的大致位置可以通过测量移动站与其所在的小区的基站与相邻小区的基站之间的信号强度来预测。在收集了一系列瞬时信号强度测量之后，可以确定移动单元的速度和方向。基于移动单元的速度和方向，可以预测移动单元的未来位置，包括移动站与其所在的小区的基站和相邻小区之间的投影信号强度。分析投影信号强度值，可以确定移动单元需要切换到相邻小区的时间，并且如果需要，可以分配相邻小区中的资源以预期移动单元被切换到该小区。定期收集新的信号强度测量值，并进行新的预测，以提高切换发生时估计的准确度以及相邻小区的估计精度。

5. 发明授权

US08792454B2 Secure and seamless WAN-LAN roaming 有权
标题翻译：安全无缝的WAN-LAN漫游
公开(公告)号：US08792454B2
公开(公告)日：2014-07-29
申请号：US13554711
申请日：2012-07-20
申请人： Kenichi Taniuchi , Tao Zhang , Prathima Agrawal , Ashutosh Dutta , Sunil Madhani , Shinichi Baba , Kensaku Fujimoto , Yasuhiro Katsube , Toshikazu Kodama , Yoshihiro Ohba
发明人： Kenichi Taniuchi , Tao Zhang , Prathima Agrawal , Ashutosh Dutta , Sunil Madhani , Shinichi Baba , Kensaku Fujimoto , Yasuhiro Katsube , Toshikazu Kodama , Yoshihiro Ohba
IPC分类号： H04W4/00 , H04W80/04 , H04W84/12 , H04L29/06
CPC分类号： H04L63/1458 , H04L29/06088 , H04L63/02 , H04L63/0272 , H04L63/0428 , H04L63/061 , H04L63/164 , H04L69/14 , H04L69/161 , H04W8/02 , H04W12/06 , H04W80/04 , H04W80/045 , H04W84/12
摘要： Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.
摘要翻译：描述了内部和外部网络之间的安全和无缝漫游的系统和方法。双重和三重隧道可用于将移动节点连接到通讯主机。移动节点可以包括同时连接到两个网络的能力，以实现网络之间的无缝漫游。

6. 发明授权

US07139285B2 Frequency hop collision prediction in a multi-channel, bluetooth-enabled packet transmission system 有权
标题翻译：在多通道，支持蓝牙的分组传输系统中进行频跳冲突预测
公开(公告)号：US07139285B2
公开(公告)日：2006-11-21
申请号：US10016238
申请日：2001-12-10
申请人： Prathima Agrawal , David Famolari
发明人： Prathima Agrawal , David Famolari
IPC分类号： H04L12/43 , H04J3/00
CPC分类号： H04W16/14 , H04B1/715 , H04B2001/7154 , H04W84/18
摘要： An arrangement including a scannable matrix for predicting the occurrence of a future collision of frequency hops of the channel hopping patterns on the respective activated first paths of a Bluetooth packet transmission system is described. A first coordinate of the matrix defines columns representative of a selectable window of N successive future time slots of the channel hopping patterns, and a second coordinate of the matrix defines rows each exhibiting the successive frequency hops of the patterns segments transmitted on a separate one of the activated channels during such window. The first coordinate is scanned to detect the occurrence, if any, of identical frequency hops appearing at an intersection of the then-scanned column and at least a pair of the rows. If a particular scan does not detect an occurrence of such identical frequency hops in any of the time slots of the scanned window, the first coordinate may be incremented by a selected number of time slots at the end of the scan, and the scan is then successively repeated for each new window that results. If and when identical frequency hops are detected in a particular future time slot during a scan, the channel hopping pattern(s) on a subset of the affected channels may be suitably altered to avoid the predicted collision.
摘要翻译：描述了包括用于预测蓝牙分组传输系统的相应的激活的第一路径上的信道跳频模式的跳频的未来冲突的发生的可扫描矩阵的布置。矩阵的第一坐标定义表示信道跳频图案的N个连续未来时隙的可选窗口的列，并且矩阵的第二坐标定义各自表现出在单独的一个上发送的模式段的连续跳频的行在这样的窗口中激活的通道。扫描第一个坐标以检测出现在当时扫描的列和至少一对行的交点处的相同跳频的发生（如果有的话）。如果特定扫描未检测到扫描窗口的任何时隙中出现这样相同的跳频，则第一坐标可以在扫描结束时递增选定数量的时隙，然后扫描连续重复每个新窗口的结果。如果并且当在扫描期间在特定的未来时隙中检测到相同的跳频时，可以适当地改变受影响信道的子集上的信道跳频模式以避免预测的冲突。

7. 发明授权

US07103360B2 Switching telephone calls between wireline and cellular telephones 有权
公开(公告)号：US07103360B2
公开(公告)日：2006-09-05
申请号：US10045346
申请日：2001-10-23
申请人： Prathima Agrawal , Parameswaran Ramanathan
发明人： Prathima Agrawal , Parameswaran Ramanathan
IPC分类号： H04Q7/20
CPC分类号： H04M3/58 , H04M3/54 , H04M2203/1091 , H04M2207/206 , H04W4/16 , H04W8/18
摘要： A telephone subscriber having both a wireline and a cellular telephone can switch calls between these phones. A routing table identifies that a subscriber is entitled to this service, and a look up table maintains the telephone numbers of the two different telephones. Upon detection of a unique signal indicating a request for switching a call connected to one of the telephones to the other telephone, a connection is made to the other telephone, the two connections are bridged, and then the first connection is dropped. The routing table may be maintained in a central office and the look up table may be maintained in a mobile switching center or a fixed cellular mobility agent.

8. 发明授权

US06788660B1 Adaptive mobile signaling for wireless internet telephony 有权
标题翻译：适用于无线互联网电话的移动信令
公开(公告)号：US06788660B1
公开(公告)日：2004-09-07
申请号：US09512646
申请日：2000-02-24
申请人： Prathima Agrawal , Jyh-Cheng Chen
发明人： Prathima Agrawal , Jyh-Cheng Chen
IPC分类号： H04Q700
CPC分类号： H04W36/36 , H04L29/06027 , H04L65/1043 , H04L65/1069 , H04W36/08 , H04W76/10 , H04W76/20
摘要： Active packets are utilized by a mobile terminal in a wireless network to set-up a wireless call via a signaling process, and for mobility management via a mobility process as the mobile terminal moves from one cell to another in a subnet. Active packets instantiate an agent in the fixed network to handle signaling between the mobile terminal and the fixed network, and then instruct the agent to negotiate setup of an open channel between the mobile terminal and the destination device. Moreover, active packets foster the handoff of the mobile terminal as the terminal moves from one cell to another in a subnet. Finally, the signaling process and mobility process are coordinated so that lost active packets are mitigated during roaming by the mobile terminal.
摘要翻译：活动分组被无线网络中的移动终端用于经由信令过程建立无线呼叫，并且当移动终端在子网中从一个小区移动到另一个小区时，经由移动性过程进行移动性管理。活动分组实例化固定网络中的代理以处理移动终端和固定网络之间的信令，然后指示代理商协商移动终端与目的地设备之间的开放信道的建立。此外，当终端在子网中从一个小区移动到另一个小区时，活动分组促进移动终端的切换。最后，协调信令过程和移动性过程，以便在移动终端漫游期间减轻活动分组丢失。

9. 发明授权

US06480537B1 Active techniques for video transmission and playback 有权
标题翻译：视频传输和播放的主动技术
公开(公告)号：US06480537B1
公开(公告)日：2002-11-12
申请号：US09420401
申请日：1999-10-18
申请人： Prathima Agrawal , Jyh-Cheng Chen , David Famolari
发明人： Prathima Agrawal , Jyh-Cheng Chen , David Famolari
IPC分类号： H04B166
CPC分类号： H04N21/4351 , H04N21/235 , H04N21/4348 , H04N21/435 , H04N21/4431 , H04N21/8166 , H04N21/8193
摘要： Encoding a real-time and non-real-time video stream, encapsulating the encoded video stream along with the decoding software corresponding to the encoding program into active packets at the Application and Services layer, and transmitting active the packets to the receiving terminal, which then supplies the receiver with the necessary decoding software to play any type of encoded video stream without having the associated decoding software pre-loaded.
摘要翻译：编码实时和非实时视频流，将编码视频流连同与编码程序相对应的解码软件封装成应用和服务层的活动分组，并将分组发送到接收终端，然后为接收机提供必要的解码软件，以播放任何类型的编码视频流，而不必对相关联的解码软件进行预加载。

10. 发明授权

US5623483A Synchronization system for networked multimedia streams 失效
标题翻译：联网多媒体流同步系统
公开(公告)号：US5623483A
公开(公告)日：1997-04-22
申请号：US439041
申请日：1995-05-11
申请人： Prathima Agrawal , Balakrishnan Narendran , Narayanan Shivakumar , Cormac J. Sreenan
发明人： Prathima Agrawal , Balakrishnan Narendran , Narayanan Shivakumar , Cormac J. Sreenan
IPC分类号： H04J3/06 , H04L12/56 , H04N21/2368 , H04N21/434 , H04Q11/04
CPC分类号： H04Q11/0478 , H04J3/0632 , H04N21/4305 , H04N21/4307 , H04N21/44004 , H04N21/8547 , H04L2012/5616 , H04L2012/5674
摘要： A network data stream synchronization method and system are disclosed. Operating delay and loss parameters are accepted and a data stream buffer is initialized. The network delay experienced by a data packet is determined and a buffer delay is imposed to provide a fixed end-to-end delay. Packets arriving too late to be played within the fixed end-to-end delay are discarded. Network delay models may be updated and clock drifts may be detected and compensated for using historical buffer data.
摘要翻译：公开了一种网络数据流同步方法和系统。接受运行延迟和损耗参数，并初始化数据流缓冲区。确定数据分组所经历的网络延迟并施加缓冲器延迟以提供固定的端到端延迟。到达太迟的数据包在固定的端到端延迟内播放被丢弃。可以更新网络延迟模型，并且可以检测和补偿时钟漂移以使用历史缓冲器数据。

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