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41. 发明授权

US06721331B1 Method and apparatus for decentralized prioritized scheduling in a CSMA/CA wireless system 失效
标题翻译：在CSMA / CA无线系统中分散优先调度的方法和装置
公开(公告)号：US06721331B1
公开(公告)日：2004-04-13
申请号：US09461924
申请日：1999-12-15
申请人： Prathima Agrawal , Parameswaran Ramanathan , Cormac John Sreenan
发明人： Prathima Agrawal , Parameswaran Ramanathan , Cormac John Sreenan
IPC分类号： H04L12413
CPC分类号： H04L12/413
摘要： A method and apparatus provide decentralized prioritized scheduling of wireless access in a carrier sense multiple access with collision avoidance (CSMA/CA) wireless local area network (LAN) is presented. Prior to and during data packet transmissions, a device station in the CSMA/CA wireless LAN continuously monitors transmission traffic in the bandwidth medium of the wireless LAN to determine whether the delay associated with pre-transmission of a data packet, due to the collision avoidance protocol in the CSMA/CA wireless LAN, exceeds the time frame in which the device station necessarily must transmit the data packet. If the delay is too great for the type of data packet to be transmitted, the device station decreases the possible range of the back-off duration of the collision avoidance protocol. Thus, the station device can increase its transmission priority by decreasing the randomly selected back-off duration range of values.
摘要翻译：一种方法和装置提供了在载波侦听下具有冲突避免的多址接入（CSMA / CA）无线局域网（LAN）的无线接入的分散优先调度。在数据分组传输之前和期间，CSMA / CA无线LAN中的设备站连续地监视无线LAN的带宽介质中的传输业务，以确定由于避免碰撞而与数据分组的预发送相关联的延迟 CSMA / CA无线局域网中的协议超过了设备站必须传输数据包的时间范围。如果对于要发送的数据分组的类型的延迟太大，则设备站减少避免冲突协议的回退持续时间的可能范围。因此，站设备可以通过减少随机选择的退避持续时间范围来增加其传输优先级。

42. 发明授权

US06628943B1 Mobility management utilizing active address propagation 有权
标题翻译：利用活动地址传播的移动管理
公开(公告)号：US06628943B1
公开(公告)日：2003-09-30
申请号：US09512645
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： H04Q720
CPC分类号： H04L65/1009 , H04L29/06027 , H04W36/0033 , H04W76/10 , H04W76/20 , H04W80/04
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过程，以便在移动终端漫游期间减轻活动分组丢失。

43. 发明授权

US06216005B1 Cellular-fixed call completion and call transfer service from a cellular network provider 有权
标题翻译：来自蜂窝网络提供商的蜂窝固定呼叫完成和呼叫转移服务
公开(公告)号：US06216005B1
公开(公告)日：2001-04-10
申请号：US09223290
申请日：1998-12-30
申请人： Prathima Agrawal , Parameswaran Ramanathan
发明人： Prathima Agrawal , Parameswaran Ramanathan
IPC分类号： H04Q720
CPC分类号： H04W8/28
摘要： A cellular-fixed call transfer service is effected by introducing a Fixed-Cellular Mobility Agent (FCMA) into the cellular network, the FCMA having the functionality of a PSTN central office/CN mobile switching center for interconnecting incoming calls to the MSC as outgoing calls to the CN or the PSTN and which, in addition, monitors each call connection to carry out call transfers between the CN and the PSTN.
摘要翻译：通过将固定蜂窝移动代理（FCMA）引入到蜂窝网络中来实现蜂窝固定呼叫转移服务，具有PSTN中心局/ CN移动交换中心的功能的FCMA用于将来话呼叫互连到MSC作为呼出呼叫到CN或PSTN，并且另外监视每个呼叫连接以在CN和PSTN之间执行呼叫转移。

44. 发明授权

US6072784A CDMA mobile station wireless transmission power management with adaptive scheduling priorities based on battery power level 失效
标题翻译： CDMA移动台无线传输功率管理，具有基于电池功率级别的自适应调度优先级
公开(公告)号：US6072784A
公开(公告)日：2000-06-06
申请号：US900802
申请日：1997-07-25
申请人： Prathima Agrawal , Jyh-Cheng Chen , Shalinee Kishore , Krishna M. Sivalingam
发明人： Prathima Agrawal , Jyh-Cheng Chen , Shalinee Kishore , Krishna M. Sivalingam
IPC分类号： H04B7/005 , H04W52/02 , H04W52/28 , H04W72/12 , G08C17/00 , H04B7/216
CPC分类号： H04W72/048 , H04W52/28 , H04W52/0258 , H04W52/0261 , H04W72/10 , Y02B60/50
摘要： A method adapts scheduling priorities in a CDMA wireless communications system to conserve battery power in mobile terminals operating within the system. A base station, within the system, receives battery power level information and other setup information from mobile terminals operating within the service area of the base station during call setup procedures. Based on the battery power level information and other setup information, the base station adapts scheduling priorities for the mobile terminals to expedite wireless transmissions from those mobile terminals reporting low battery power levels. The base station schedules the transmissions from low battery power mobile stations to be clustered together in a low-power time slot which is separate in time from the scheduled transmissions from high battery power mobile stations. The base station transmits a power control message to the low battery power mobile stations, to reduce the transmission power required for those mobile stations during the low-power time slot.
摘要翻译：一种适应CDMA无线通信系统中的调度优先级的方法来节省在系统内操作的移动终端中的电池功率。在呼叫建立过程期间，系统内的基站从基站的服务区内的移动终端接收电池功率电平信息和其他设置信息。基于电池功率电平信息和其他设置信息，基站适应移动终端的调度优先级，以加速报告低电池功率电平的那些移动终端的无线传输。基站将来自低电量电力移动站的传输调度在与来自高电池电力移动台的调度传输时间上分开的低功率时隙中聚集在一起。基站向低电力电力移动站发送功率控制消息，以降低在低功率时隙期间这些移动站所需的发送功率。

45. 发明授权

US5774461A Medium access control and air interface subsystem for an indoor wireless ATM network 失效
标题翻译：用于室内无线ATM网络的媒体接入控制和空中接口子系统
公开(公告)号：US5774461A
公开(公告)日：1998-06-30
申请号：US534761
申请日：1995-09-27
申请人： Eoin Hyden , Mani Bhushan Srivastava , John Andrew Trotter , Prathima Agrawal , Paul Krzyzanowski
发明人： Eoin Hyden , Mani Bhushan Srivastava , John Andrew Trotter , Prathima Agrawal , Paul Krzyzanowski
IPC分类号： H04B7/26 , H04L12/28 , H04L12/56 , H04Q11/04 , H04W72/12 , H04W84/12
CPC分类号： H04Q11/0478 , H04L1/0041 , H04L2012/5607 , H04L2012/5615 , H04L2012/5616 , H04W72/1289 , H04W84/12
摘要： A system for delivering packetized data in a network dynamically assigns a unique address to a mobile unit, allocates bandwidth within a wireless link by a token scheme and provides forward error correction for the packet. The system wirelessly transports the packets between a base station and an end point which is responsive to a link cell for linking the base station and the end point. The link cell contains a header and a body. The header in turn contains a forward error correction code, a radioport id and a token. The forward error correction code provides error detection and error correction that relies solely on a one-way communication of data bits from a sender to a receiver. The radioport id is a logical id assigned such that each radio-port in a vicinity has a unique id. The token enables the wireless transportation over a selected channel of the packets between the base station and the end point. The token is utilized to allocate the selected channel from a plurality of channels. A method is also described for delivering packetized data between an endpoint and a base station.
摘要翻译：用于在网络中传送分组化数据的系统动态地向移动单元分配唯一地址，通过令牌方案在无线链路内分配带宽，并为分组提供前向纠错。系统在基站和端点之间无线地传输分组，该终端响应于用于链接基站和终点的链路小区。链接单元格包含标题和正文。标题依次包含前向纠错码，无线端口ID和令牌。前向纠错码提供错误检测和纠错，其仅依赖于从发送器到接收器的数据位的单向通信。无线电端口id是分配的逻辑ID，使得附近的每个无线电端口具有唯一的ID。令牌使得能够在基站和终点之间的分组的选定信道上进行无线传输。令牌用于从多个信道分配所选择的信道。还描述了用于在端点和基站之间递送分组化数据的方法。

46. 发明授权

US5722051A Adaptive power control and coding scheme for mobile radio systems 失效
标题翻译：移动无线电系统的自适应功率控制和编码方案
公开(公告)号：US5722051A
公开(公告)日：1998-02-24
申请号：US600696
申请日：1996-02-13
申请人： Prathima Agrawal , Balakrishnan Narendran , James Paul Sienicki , Shalini Yajnik
发明人： Prathima Agrawal , Balakrishnan Narendran , James Paul Sienicki , Shalini Yajnik
IPC分类号： H04B7/26 , H04B7/005 , H04L1/00 , H04B1/00 , H04B7/00
CPC分类号： H04W52/265 , H04L1/0015 , H04W52/362 , H04W52/367 , H04W52/48 , H04L1/0009 , H04L1/0023 , Y02B60/50
摘要： A dynamic combined power control and forward error correction control (FEC) technique for mobile radio systems which illustratively decreases the power consumed by wireless transmitters and increases the number of simultaneous connections which may be supported thereby. Individual transmitter-receiver pairs may adaptively determine the minimal power and FEC required to satisfy specified quality-of-service (QOS) constraints. Specifically, in accordance with an illustrative embodiment of the present invention, a first portion of a signal is encoded with a first code to generate a first encoded signal portion. Then, the first encoded signal portion is transmitted with a first power level. Next, parameter data is received, wherein the parameter data is representative of one or more characteristics of a received signal portion having been received by the receiver, the received signal portion having been based on the transmitted first encoded signal portion. A second code and a second power level is then determined based on the received parameter data, and a second portion of the signal is encoded with the second code to generate a second encoded signal portion. Finally, the second encoded signal portion is transmitted with the second power level.
摘要翻译：用于移动无线电系统的动态组合功率控制和前向纠错控制（FEC）技术，其示例性地降低无线发射机消耗的功率并且增加可能由此支持的同时连接的数量。单个发射机 - 接收机对可以自适应地确定满足指定的服务质量（QOS）约束所需的最小功率和FEC。具体地，根据本发明的说明性实施例，信号的第一部分用第一代码编码以产生第一编码信号部分。然后，第一编码信号部分以第一功率电平传输。接下来，接收参数数据，其中参数数据表示接收机接收到的接收信号部分的一个或多个特性，接收信号部分已经基于发送的第一编码信号部分。然后基于接收的参数数据确定第二代码和第二功率电平，并且用第二代码编码信号的第二部分以生成第二编码信号部分。最后，以第二功率电平发送第二编码信号部分。

47. 发明授权

US5513339A Concurrent fault simulation of circuits with both logic elements and functional circuits 失效
标题翻译：具有逻辑元件和功能电路的电路的并发故障模拟
公开(公告)号：US5513339A
公开(公告)日：1996-04-30
申请号：US358663
申请日：1994-12-19
申请人： Prathima Agrawal , Soumitra Bose
发明人： Prathima Agrawal , Soumitra Bose
IPC分类号： G01R31/28 , G06F11/22 , G06F11/26 , G06F17/50 , G06F11/277
CPC分类号： G06F11/261
摘要： Test vectors for a circuit containing both logic gates and memory blocks are evaluated by applying candidate test vectors to good and faulty versions of the circuit in a computer simulation. The functions of the gates and interconnections in the circuit are stored in memory and the operation of the good and faulty circuits is simulated concurrently. During the simulation, a memory record is created for storing the state of a circuit element in a faulty circuit if the fault is visible at the element. Such records are removed when no longer needed, which speeds up the simulation. A multiprocessor in a pipeline configuration is disclosed for performing the simulation. A first branch in the pipeline simulates the logic gates in the circuit; a second branch simulates the memory blocks.
摘要翻译：包含逻辑门和存储器块的电路的测试向量通过在计算机模拟中将候选测试向量应用于电路的良好和故障版本来评估。电路中的门和互连的功能存储在存储器中，并且同时模拟良好和有故障的电路的操作。在仿真期间，如果故障在元件上可见，则创建存储器记录以将电路元件的状态存储在故障电路中。这种记录在不再需要时被删除，这加速了模拟。公开了一种用于执行模拟的管道配置中的多处理器。管道中的第一个分支模拟电路中的逻辑门; 第二个分支模拟内存块。

48. 发明授权

US08631104B2 System and method for quality of service management in mobile wireless networks 有权
标题翻译：移动无线网络服务质量管理系统和方法
公开(公告)号：US08631104B2
公开(公告)日：2014-01-14
申请号：US09946796
申请日：2001-09-06
申请人： Prathima Agrawal , Shinichi Baba , Faramak Vakil
发明人： Prathima Agrawal , Shinichi Baba , Faramak Vakil
IPC分类号： G06F15/173
CPC分类号： H04L41/0896 , H04L41/142 , H04L41/147 , H04W28/24 , H04W28/26 , H04W36/08 , H04W64/006 , H04W72/0453
摘要： A system and method are provided by which a wireless network service provider is able to provide and maintain a high level of quality of service for terminals in the corresponding network, by overcoming problems that result in a diminished quality of service, including handoff delays as terminals move between cells in a network and the uncertainly as to which cell the individual terminals are moving to as they roam within the network. Providing and maintaining a high level of quality of service in a wireless network includes recording a history of movements of a terminal within the wireless network, analyzing the movements of the terminal within the wireless network to compute a probability distribution of the terminal's target location, and allocating network resources, including bandwidth and priority scheme, to the terminal based on the probability distribution for the terminal.
摘要翻译：提供了一种系统和方法，通过该系统和方法，无线网络服务提供商能够通过克服导致服务质量降低的问题（包括作为终端的切换延迟）来提供并维持相应网络中的终端的高水平的服务质量在网络中的小区之间移动，并且不确定地指出当各个终端在网络内漫游时移动到哪个小区。在无线网络中提供和维持高水平的服务质量包括记录终端在无线网络内的移动历史，分析无线网络内的终端的移动以计算终端的目标位置的概率分布，以及基于终端的概率分布向终端分配包括带宽和优先级方案的网络资源。

49. 发明授权

US07974602B2 Fraud detection techniques for wireless network operators 有权
标题翻译：无线网络运营商的欺诈检测技术
公开(公告)号：US07974602B2
公开(公告)日：2011-07-05
申请号：US09946795
申请日：2001-09-06
申请人： Prathima Agrawal , Nobuyasu Nakjima , Yoshihiro Ohba , Faramak Vakil
发明人： Prathima Agrawal , Nobuyasu Nakjima , Yoshihiro Ohba , Faramak Vakil
IPC分类号： H04M1/66 , H04M1/68 , H04M3/16
CPC分类号： H04M3/38 , H04M1/66 , H04M3/2218 , H04M3/36 , H04M2203/6027 , H04M2207/18 , H04M2242/30
摘要： A system and method are provided by which a network operator is able to detect fraudulent use of a subscriber's terminal, regardless of whether or not the subscriber is aware of the fraudulent use of her terminal. Detecting unauthorized terminal use in a wireless network includes recording a history of terminal location and registration patterns, analyzing the recorded history of location and registration patterns of the terminal, monitoring current location and registration patterns of the terminal, and requesting clarification when a deviation between said statistical analysis of the location and registration patterns of said terminal and said current location and registration patterns of said terminal is detected.
摘要翻译：提供一种系统和方法，网络运营商能够检测用户终端的欺诈性使用，而不管用户是否知道终端的欺诈性使用。在无线网络中检测未经授权的终端使用包括记录终端位置和登记模式的历史，分析记录的终端的位置和登记模式的历史，监视终端的当前位置和登记模式，并且当所述终端的偏差检测所述终端的位置和登记模式以及所述终端的所述当前位置和登记模式的统计分析。

50. 发明授权

US07016396B2 Unitary bluetooth-enabled terminal having multiple radio interfaces 有权
公开(公告)号：US07016396B2
公开(公告)日：2006-03-21
申请号：US10054134
申请日：2001-11-13
申请人： Prathima Agrawal , David Famolari
发明人： Prathima Agrawal , David Famolari
IPC分类号： H04B1/69 , H04B1/707 , H04B1/713
CPC分类号： H04B1/715 , H04B2001/7154
摘要： A Bluetooth-enabled terminal having a radio manager for minimizing frequency collisions between channel hopping patterns transmitted over plural channels established between such terminal and correspondent Bluetooth devices is described. The radio manager extracts successive sets of projected future N—time slot segments of the respective Bluetooth channel hopping patterns. Each extracted set is tested to detect a time slot, if any, where frequency hops of the segments of the set coincide, indicating a frequency collision. When a collision time slot is detected, the radio manager generates a marker which triggers an alteration of the frequency hops that would otherwise be exhibited by a subset of the generated channel hopping patterns in such detected time slot. Such terminal may optionally be provided with an additional network interface to define a collision-resistant Bluetooth access point.

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