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11. 发明授权

US06611755B1 Vehicle tracking, communication and fleet management system 有权
公开(公告)号：US06611755B1
公开(公告)日：2003-08-26
申请号：US09466169
申请日：1999-12-19
申请人： John R. Coffee , Richard W. Rudow , Robert F. Allen , Mark Billings , David A. Dye , Mark L. Kirchner , Robert W. Lewis , Kevin M. Marvin , Robert D. Sleeper , William A. Tekniepe
发明人： John R. Coffee , Richard W. Rudow , Robert F. Allen , Mark Billings , David A. Dye , Mark L. Kirchner , Robert W. Lewis , Kevin M. Marvin , Robert D. Sleeper , William A. Tekniepe
IPC分类号： H04B726
CPC分类号： B60P3/03 , B28C5/422 , B28C7/02 , B28C7/028 , B28C9/00 , G01M17/00 , G07C5/008 , G08G1/20 , H04W8/245 , H04W16/14 , H04W28/22 , H04W56/0085 , H04W64/00 , H04W72/10 , H04W74/04 , H04W84/00
摘要： A vehicle fleet management information system identifies location and direction of movement of each vehicle in a fleet in real-time, and automatically reports such information, as well as status of predetermined events in which the vehicle is engaged, directly to the fleet manager. Each fleet vehicle has an assigned time slot to transmit its reporting information over a communications network without interfering with transmissions from other vehicles in their own respective time slots. A timing control phase lock loop (PLL) provides precise time synchronization for timing corrections from a global positioning system (GPS) based time reference. A dual band full-duplex interface of the network has TDMA on one-half and broadcast on the other half. Microprocessor time processing units in components of the network perform precise clock synchronization. Space diversity performed on received vehicle transmitted messages avoids data corruption. Different vehicles have different periodic transmission intervals, by dynamically allocating the slots for various update rates. Auxiliary reporting slots enable prompt reporting of important data by the respective vehicle transmitters independent of the slower periodic transmission intervals.

12. 发明授权

US06493380B1 System and method for estimating signal time of arrival 有权
标题翻译：估计信号到达时间的系统和方法
公开(公告)号：US06493380B1
公开(公告)日：2002-12-10
申请号：US09321819
申请日：1999-05-28
申请人： Shiquan Wu , Song Zhang , Xixian Chen
发明人： Shiquan Wu , Song Zhang , Xixian Chen
IPC分类号： H04B726
CPC分类号： G01S5/0215 , G01S5/02 , G01S5/06 , H04B7/005 , H04L25/0234
摘要： A method for estimating a time delay including the steps of first, estimating a channel spectrum from a received signal and a known reference signal, second, extracting a virtual array structure from the estimated channel spectrum, and third, determining the signal time delay using the virtual array structure. Further, a system for estimating a time delay including a channel spectrum estimator, means for extracting a virtual array structure and means for determining the time delay is provided. The channel spectrum estimator is used for estimating a channel spectrum from a received signal and a known reference signal. The means for extracting a virtual array structure uses the estimated channel spectrum. The means for determining the time delay uses the virtual array structure.
摘要翻译：一种用于估计时间延迟的方法，包括首先从接收信号估计信道频谱和已知参考信号的步骤，其次，从所估计的信道频谱中提取虚拟阵列结构，以及第三，使用虚拟阵列结构。此外，提供了一种用于估计包括信道频谱估计器，用于提取虚拟阵列结构的装置和用于确定时间延迟的装置的时间延迟的系统。信道频谱估计器用于从接收信号和已知参考信号估计信道频谱。用于提取虚拟阵列结构的装置使用估计的信道频谱。用于确定时间延迟的方法使用虚拟阵列结构。

13. 发明授权

US06456610B1 TDM/TDMA wireless telecommunication system with electronic scanning antenna 失效
标题翻译：具有电子扫描天线的TDM / TDMA无线电信系统
公开(公告)号：US06456610B1
公开(公告)日：2002-09-24
申请号：US08553202
申请日：1995-11-07
申请人： Bruce Edwin Briley
发明人： Bruce Edwin Briley
IPC分类号： H04B726
CPC分类号： H04B7/0408 , H04B7/2643
摘要： A terrestrial wireless telecommunication system is disclosed that uses an electronic scanning antenna to rotate a beam that carries communication messages between a base station and a plurality of wireless terminals. A base station transmitter transmits the communication messages to each wireless terminal, via the electronic scanning antenna, in a time-division multiplexed (“TDM”) data stream that is synchronized with the rotation of the beam, and a base station receiver receives the communication messages from each wireless terminal in a time-division multiple access (“TDMA”) data stream that is also synchronized with the rotation of the beam.
摘要翻译：公开了一种使用电子扫描天线来旋转在基站和多个无线终端之间承载通信消息的波束的地面无线电信系统。基站发射机经由电子扫描天线在与波束的旋转同步的时分复用（“TDM”）数据流中将通信消息发送到每个无线终端，并且基站接收机接收通信时分多址（“TDMA”）数据流中的每个无线终端的消息也与波束的旋转同步。

14. 发明授权

US06453151B1 Method of reducing resource assignment overhead in wireless communication systems 失效
标题翻译：减少无线通信系统资源分配开销的方法
公开(公告)号：US06453151B1
公开(公告)日：2002-09-17
申请号：US09336921
申请日：1999-06-21
申请人： T. Roger Kiang , Tejaskumar R. Patel , Sudhir Ramakrishna
发明人： T. Roger Kiang , Tejaskumar R. Patel , Sudhir Ramakrishna
IPC分类号： H04B726
CPC分类号： H04L1/0027 , H04B17/24 , H04B17/309 , H04L1/0002 , H04L1/0026 , H04W24/10 , H04W28/06 , H04W28/18 , H04W52/24 , H04W72/04 , H04W88/12
摘要： A method is described to reduce the time required to assign the burst transmission parameters in a wireless communication system by autonomously sharing transmission and reception information among the components of the network. Information is autonomously provided from a remote subnetwork element to a controlling network element so the controlling network element may use the information to dynamically assign and update burst transmission parameters.
摘要翻译：描述了一种方法，以通过在网络的组件中自主共享发送和接收信息来减少在无线通信系统中分配突发传输参数所需的时间。信息从远程子网元件自主地提供给控制网元，从而控制网元可以使用该信息来动态分配和更新突发传输参数。

15. 发明授权

US06438119B1 Data communication device and method for mobile communication system with dedicated control channel 有权
标题翻译：具有专用控制信道的移动通信系统数据通信装置及方法
公开(公告)号：US06438119B1
公开(公告)日：2002-08-20
申请号：US09250662
申请日：1999-02-16
申请人： Young-Ky Kim , Jae-Min Ahn , Soon-Young Yoon , Hee-Won Kang , Hyun-Suk Lee , Jin-Soo Park , Min-Sou Lee
发明人： Young-Ky Kim , Jae-Min Ahn , Soon-Young Yoon , Hee-Won Kang , Hyun-Suk Lee , Jin-Soo Park , Min-Sou Lee
IPC分类号： H04B726
CPC分类号： H04B7/2628
摘要： A CDMA communication system provides a dedicated control channel capable of efficiently communicating control messages between a base station and a mobile station. In a dedicated control channel transmission device, a controller determines a frame length of a message to be transmitted and outputs a frame select signal corresponding to the determined frame length. A message generator generates frame data of the message to be transmitted according to the frame select signal. A transmitter spreads the frame data and transmitting the spread frame data through a dedicated control channel. In a dedicated control channel reception device, a despreader despreads a received signal. A first message receiver deinterleaves and decodes the despread signal in a first frame length to output a first message, and detects a first CRC corresponding to the decoded signal. A second message receiver deinterleaves and decodes the despread signal in a second frame length to output a second message, and detects a second CRC corresponding to the decoded signal. A controller selects one of the first and second messages according to first and second CRC detection results.
摘要翻译： CDMA通信系统提供能够在基站和移动台之间有效地传送控制消息的专用控制信道。在专用控制信道传输装置中，控制器确定要发送的消息的帧长度，并输出与所确定的帧长度对应的帧选择信号。消息发生器根据帧选择信号产生要发送的消息的帧数据。发射机扩展帧数据并通过专用控制信道发送扩展帧数据。在专用控制信道接收装置中，去扩频器对接收到的信号进行解扩。第一消息接收机以第一帧长度对解扩信号进行解交织和解码，以输出第一消息，并检测与解码信号相对应的第一CRC。第二消息接收机以第二帧长度对解扩信号进行解交织和解码，以输出第二消息，并且检测对应于解码信号的第二CRC。控制器根据第一和第二CRC检测结果选择第一和第二消息中的一个。

16. 发明授权

US06421329B1 Methods and apparatus for enhancing wireless data network telephony including dynamic address translation 有权
标题翻译：用于增强无线数据网络电话的方法和装置，包括动态地址转换
公开(公告)号：US06421329B1
公开(公告)日：2002-07-16
申请号：US09351994
申请日：1999-07-12
申请人： Dan Kikinis
发明人： Dan Kikinis
IPC分类号： H04B726
CPC分类号： H04M1/026 , H04L65/80 , H04M1/2535 , H04M3/18 , H04M7/006 , H04M2201/40 , H04M2203/2061 , H04M2207/18 , H04W8/26 , H04W40/02 , H04W40/24 , H04W74/0825 , H04W84/12 , H04W88/02 , H04W88/08 , H04W88/14
摘要： A system for wireless communication comprises an hierarchical system of connected routers between a data network and a base station having connected transceivers for wireless transmission and reception of data, and a plurality of hand-held communicators adapted for users to communicate with the network via the transceivers through the routers. The system is adapted to provide wireless Data Network Telephony (DNT) and to perform dynamic address translation as a user carrying one of the hand-held communicators moves between areas covered by the connected transceivers, causing updating of routing tables in the routers and the base station.
摘要翻译：一种用于无线通信的系统包括在数据网络和具有用于无线传输和接收数据的连接的收发器的基站之间的连接路由器的分级系统，以及适于用户经由收发器与网络通信的多个手持通信器通过路由器。该系统适于提供无线数据网络电话（DNT），并且作为携带手持通信器之一的用户执行动态地址转换，在由所连接的收发器覆盖的区域之间移动，导致更新路由器和基站中的路由表站。

17. 发明授权

US06175733B1 Method for recovering communication service 有权
标题翻译：恢复通信业务的方法
公开(公告)号：US06175733B1
公开(公告)日：2001-01-16
申请号：US09263335
申请日：1999-03-05
申请人： David S. Seekins , Saumil Parikh , Charles R. Barker, Jr.
发明人： David S. Seekins , Saumil Parikh , Charles R. Barker, Jr.
IPC分类号： H04B726
CPC分类号： H04W36/0088
摘要： A communication device (102) has a serving and neighbor list (202) and a bandmap (204, 206). Upon losing communication service (402) the device begins alternately scanning the serving and neighbor list (SNL) and subsections (302, 304, 306, 308) of the bandmap. If an appropriate carrier is found while scanning the SNL, the device reconnects to the serving system. While scanning the subsections of the bandmap, the device creates and maintains a list (312) of suitable carriers. If no carriers are found corresponding to the SNL, a serving cell is selected from the list (312).
摘要翻译：通信设备（102）具有服务和邻居列表（202）和带状图（204,206）。在丢失通信服务（402）时，设备开始交替地扫描频带图的服务和邻居列表（SNL）和子部分（302,304,306,308）。如果在扫描SNL时找到适当的载体，则设备将重新连接到服务系统。在扫描带状图的子部分的同时，设备创建并维护适当载体的列表（312）。如果没有与SNL对应的载波，则从列表（312）中选择服务小区。

18. 发明授权

US06721575B1 Speech/USSD interoperability mechanism 失效
标题翻译：语音/ USSD互操作机制
公开(公告)号：US06721575B1
公开(公告)日：2004-04-13
申请号：US09807477
申请日：2001-06-13
申请人： Teemu Tarnanen , Sami Yliharju
发明人： Teemu Tarnanen , Sami Yliharju
IPC分类号： H04B726
CPC分类号： H04W4/20 , H04W28/22
摘要： A method for performing USSD transfer between a mobile station and a cellular communications network. The USSD transfer has a maximum data rate equal to the data rate of an associated control channel. The method comprises the following steps: 1) evaluating a set of factors in favor of the maximum data rate, for forming a totality of factors, the totality being at least partly independent of the existence of the associated channel prior to said evaluating; 2) comparing the totality of factors to a predetermined margin; and 3) performing the USSD transfer substantially at the maximum data rate in response to a positive result in said comparison, and otherwise at a lower data rate.
摘要翻译：一种用于在移动台和蜂窝通信网络之间执行USSD传输的方法。 USSD传输具有等于相关控制信道的数据速率的最大数据速率。该方法包括以下步骤：1）评估一组有利于最大数据速率的因素，用于形成总体因素，总体至少部分地独立于所述评估之前相关信道的存在; 2）将因子的总数与预定的余量进行比较; 以及3）响应于所述比较中的肯定结果，以基于最大数据速率执行USSD传送，否则以较低的数据速率进行。

19. 发明授权

US06639954B2 Mobile communication terminal and transmission-bit-rate detection method 失效
标题翻译：移动通信终端和传输比特率检测方法
公开(公告)号：US06639954B2
公开(公告)日：2003-10-28
申请号：US09318832
申请日：1999-05-26
申请人： Koichi Kuroiwa , Mahiro Hikita
发明人： Koichi Kuroiwa , Mahiro Hikita
IPC分类号： H04B726
CPC分类号： H04L1/0046 , H04L1/0054 , H04L1/006 , H04L1/0067 , H04L1/0071 , H04L25/0262
摘要： A mobile communication terminal which receives convolutionally encoded data that is convolutionally encoded information of a speech channel transmitted from a base station and detects a transmission bit rate selected at the base station by decoding the data. The mobile communication terminal comprises a rate estimation unit which estimates the transmission bit rate selected at the base station and outputs an estimated transmission bit rate, a decoding unit which decodes the convolutionally encoded data transmitted from the base station and outputs decoded data and predetermined types of results of decoding, a convolutional re-encoding unit which convolutionally re-encodes the decoded data and outputs re-encoded data, and a rate detection unit which detects whether the estimated transmission bit rate is correct or not based on the decoded data and the predetermined types of results of decoding.
摘要翻译：一种移动通信终端，其接收卷积编码的数据，所述卷积编码数据是从基站发送的语音信道的卷积编码信息，并且通过解码所述数据来检测在所述基站处选择的传输比特率。移动通信终端包括速率估计单元，其估计在基站处选择的传输比特率并输出估计的传输比特率;解码单元，对从基站发送的卷积编码数据进行解码，并输出解码数据和预定类型的解码结果，对解码数据进行卷积重新编码并输出再编码数据的卷积重编码单元，以及速率检测单元，其基于解码数据和预定的数据检测估计的传输比特率是否正确解码结果的类型。

20. 发明授权

US06535497B1 Methods and systems for multiplexing of multiple users for enhanced capacity radiocommunications 失效
公开(公告)号：US06535497B1
公开(公告)日：2003-03-18
申请号：US09079205
申请日：1998-05-15
申请人： Alex Krister Raith
发明人： Alex Krister Raith
IPC分类号： H04B726
CPC分类号： H04L1/0071 , H04B7/2628 , H04B7/264 , H04L1/0045 , H04L1/007 , H04L1/208 , H04L5/12 , H04L27/18
摘要： A radiocommunication system supports multi-user multiplexing. Half rate data communications with interleaving of data between two sources are described.

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