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1.发明授权Asynchronous transfer mode radio communications system with handoff and method of operation 失效具有切换和操作方法的异步传输模式无线电通信系统
公开(公告)号：US5940381A
公开(公告)日：1999-08-17
申请号：US615381
申请日：1996-03-14
CPC分类号： H04W36/12 , H04Q11/0478 , H04L2012/5607 , H04L2012/563 , H04L2012/5631 , H04L2012/5649 , H04L2012/5674
摘要： A radio communications system (10) having a mobile station (30) and at least two base stations (13, 14). ATM radio channels (31, 32) are provided between the remote station and base stations. Each of the ATM channels supports communication though ATM cells over a common frequency band. At least one ATM node (21) is coupled to the base stations. A base station controller (11) is coupled to the ATM node. The base station controller has a combiner (303) for combining cell streams received from the first and second base stations and an ATM signalling circuit (330) for sending ATM commands to the ATM node for dividing cell streams at the ATM node to the first and second base stations. The remote station (30) has a logic unit (520) for combining cell streams received from the first and second base stations during a handoff from the first base station to the second base station.
摘要翻译： 一种具有移动台（30）和至少两个基站（13,14）的无线电通信系统（10）。 在远程站和基站之间提供ATM无线电信道（31,32）。 每个ATM信道支持通过ATM信元通过公共频带进行通信。 至少一个ATM节点（21）耦合到基站。 基站控制器（11）耦合到ATM节点。 基站控制器具有用于组合从第一和第二基站接收的小区流的组合器（303）和用于向ATM节点发送ATM命令的ATM信令电路（330），用于将ATM节点处的小区流划分为第一和第二基站， 第二基站。 远程站（30）具有用于在从第一基站到第二基站的切换期间组合从第一和第二基站接收的小区流的逻辑单元（520）。
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2.发明授权公开(公告)号：US06570856B1
公开(公告)日：2003-05-27
申请号：US09215969
申请日：1998-12-18
IPC分类号： H04B700
CPC分类号： H04W36/12 , H04L2012/5607 , H04L2012/563 , H04L2012/5631 , H04L2012/5649 , H04L2012/5674 , H04Q11/0478
摘要： A radio communications system (10) having a mobile station (30) and at least two base stations (13, 14). ATM radio channels (31, 32) are provided between the remote station and the base stations. Each of the ATM channels supports communication though ATM cells over a common frequency band. When handoff conditions are met for a handoff from the first base station to the second base station, a second virtual path identifier and a second virtual connection identifier are selected for a connection between the second base station and the remote station.
摘要翻译： 一种具有移动台（30）和至少两个基站（13,14）的无线电通信系统（10）。 在远程站和基站之间提供ATM无线电信道（31,32）。 每个ATM信道支持通过ATM信元通过公共频带进行通信。 当从第一基站到第二基站的切换满足切换条件时，为第二基站和远程站之间的连接选择第二虚拟路径标识符和第二虚拟连接标识符。
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公开(公告)号：US6128287A
公开(公告)日：2000-10-03
申请号：US215527
申请日：1998-12-18
CPC分类号： H04W36/12 , H04Q11/0478 , H04L2012/5607 , H04L2012/563 , H04L2012/5631 , H04L2012/5649 , H04L2012/5674
摘要： A radio communications system (10) having a mobile station (30) and at least two base stations (13, 14). ATM radio channels (31, 32) are provided between the remote station and base stations. Each of the ATM channels supports communication though ATM cells over a common frequency band. At least one ATM node (21) is coupled to the base stations. A base station controller (11) is coupled to the ATM node. The base station controller has a combiner (303) for combining cell streams received from the first and second base stations and an ATM signalling circuit (330) for sending ATM commands to the ATM node for dividing cell streams at the ATM node to the first and second base stations. The remote station (30) has a logic unit (520) for combining cell streams received from the first and second base stations during a handoff from the first base station to the second base station.
摘要翻译： 一种具有移动台（30）和至少两个基站（13,14）的无线电通信系统（10）。 在远程站和基站之间提供ATM无线电信道（31,32）。 每个ATM信道支持通过ATM信元通过公共频带进行通信。 至少一个ATM节点（21）耦合到基站。 基站控制器（11）耦合到ATM节点。 基站控制器具有用于组合从第一和第二基站接收的小区流的组合器（303）和用于向ATM节点发送ATM命令的ATM信令电路（330），用于将ATM节点处的小区流划分为第一和第二基站， 第二基站。 远程站（30）具有用于在从第一基站到第二基站的切换期间组合从第一和第二基站接收的小区流的逻辑单元（520）。
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公开(公告)号：US6009086A
公开(公告)日：1999-12-28
申请号：US215729
申请日：1998-12-18
CPC分类号： H04W36/12 , H04Q11/0478 , H04L2012/5607 , H04L2012/563 , H04L2012/5631 , H04L2012/5649 , H04L2012/5674
摘要： A radio communications system (10) having a remote or mobile station (30) and at least two base stations (13, 14). ATM radio channels (31, 32) are provided between the remote station and base stations. The remote station (30) has a logic unit (520) for combining cell streams received from the first and second base stations during a handoff from the first base station to the second base station. A receiver in the remote station (30) is powered up during first time periods corresponding to physical layer synchronization cells arriving from one base station (13) and second time periods corresponding to ATM cells arriving from the other base station. When handoff conditions are met, the receiver is powered up for a third time period longer than the first and second time periods.
摘要翻译： 一种具有远程或移动台（30）和至少两个基站（13,14）的无线电通信系统（10）。 在远程站和基站之间提供ATM无线电信道（31,32）。 远程站（30）具有用于在从第一基站到第二基站的切换期间组合从第一和第二基站接收的小区流的逻辑单元（520）。 远程站（30）中的接收机在对应于从一个基站（13）到达的物理层同步小区和对应于从另一个基站到达的ATM信元的第二时间段的第一时间段期间被加电。 当切换条件满足时，接收机的加电时间比第一和第二时间段长三秒。
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公开(公告)号：US5517505A
公开(公告)日：1996-05-14
申请号：US165782
申请日：1993-12-13
申请人： Dale R. Buchholz , Thomas A. Freeburg , Hungkun J. Chang , Michael P. Nolan , Paul Odlyzko , James D. McGrath , William K. Doss , Farzad Farhangnia , Mark Taylor , Jeffrey W. Manning
发明人： Dale R. Buchholz , Thomas A. Freeburg , Hungkun J. Chang , Michael P. Nolan , Paul Odlyzko , James D. McGrath , William K. Doss , Farzad Farhangnia , Mark Taylor , Jeffrey W. Manning
IPC分类号： G06F13/42 , H04B1/16 , H04B1/38 , H04L12/56 , H04L12/64 , H04M1/73 , H04W92/02 , H04J3/06 , H04J3/24
CPC分类号： H04W92/02 , G06F13/423 , H04B1/1615 , H04B1/38 , H04J3/0697 , H04L12/56 , H04L12/64 , H04L12/6402 , H04W52/0245
摘要： In a wireless TDMA network a control module (CM) sends a time stamp relative to the beginning of its frame in a synchronization packet allowing each of a plurality of user modules (UM) to maintain synchronization relative to the CM. The CM uses a plurality of directional antennas and transmits the synchronization packets over each antenna over a predetermined number of frames. The UMs use a receive time stamp to identify the beginning of a received synchronization packet. The difference between the time stamps combined with a delay constant is used by the UMs to adjust time synchronization to the CM frame.
摘要翻译： 在无线TDMA网络中，控制模块（CM）在允许多个用户模块（UM）中的每一个维持相对于CM的同步的同步分组中相对于其帧的开始发送时间戳。 CM使用多个定向天线，并在预定数量的帧上通过每个天线发送同步分组。 UM使用接收时间戳来识别接收到的同步分组的开始。 时间戳与延迟常数之间的差异由UM用于调整与CM帧的时间同步。
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公开(公告)号：US5471471A
公开(公告)日：1995-11-28
申请号：US817023
申请日：1992-01-03
CPC分类号： H04W88/06
摘要： A communications system having a plurality of different radio-types (528, 530 and 532) when integrated into a single node or control module (500) provides communications with a plurality of different end users (502, 506 and 508) having different transmission protocols. The steps involved comprise coupling the plurality of communication devices (528, 530 and 532) together via a bus (526) and coupling at least one processing unit (517) to the bus (526). Signals received by RF devices (528, 530 and 532) are communicated onto the bus (526) and processed by the processing unit (517) into processed signals. Processed signals comprise data and control information which are stored in memory (522). Thereafter, the processed signals stored in memory (522) are returned back onto the bus (526) for use by at least one of the plurality of communication devices (528, 530 and 532).
摘要翻译： 当集成到单个节点或控制模块（500）中时，具有多个不同无线电类型（528,530和532）的通信系统提供与具有不同传输协议的多个不同终端用户（502,506和508）的通信 。 所涉及的步骤包括经由总线（526）将多个通信设备（528,530和532）耦合在一起，并将至少一个处理单元（517）耦合到总线（526）。 由RF设备（528,530和532）接收的信号被传送到总线（526）上，由处理单元（517）处理成处理的信号。 处理信号包括存储在存储器（522）中的数据和控制信息。 此后，存储在存储器（522）中的已处理信号被返回到总线（526）上，供多个通信设备（528,530和532）中的至少一个使用。
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7.发明授权Method and apparatus for transmitting information within a communication system 有权用于在通信系统内发送信息的方法和装置公开(公告)号：US07269152B2
公开(公告)日：2007-09-11
申请号：US10366860
申请日：2003-02-14
申请人： Ivan Vukovic , Thomas A. Freeburg , Paul Odlyzko
发明人： Ivan Vukovic , Thomas A. Freeburg , Paul Odlyzko
IPC分类号： H04Q7/00
CPC分类号： H04L1/0009 , H04L1/0026 , H04L1/0046 , H04L1/0061 , H04L1/0075 , H04W36/16 , H04W48/10 , H04W74/08 , H04W84/00
摘要： A node within a communication system periodically broadcasts its interference status to neighboring nodes within the communication system. Additionally, the node receives an interference status from all neighboring nodes. If communication is desired with a neighboring node, the node accesses the stored table for the particular neighboring node and determines an optimal time for transmission to the neighboring node. This is accomplished by utilizing the table received from the neighboring node and determining the neighboring node's optimal times for reception.
摘要翻译： 通信系统内的节点周期性地将其干扰状态广播到通信系统内的相邻节点。 此外，节点从所有相邻节点接收干扰状态。 如果需要与相邻节点进行通信，则节点访问特定相邻节点的存储表，并且确定用于传输到相邻节点的最佳时间。 这是通过利用从相邻节点接收的表并且确定邻近节点的接收的最佳时间来实现的。
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公开(公告)号：US6108315A
公开(公告)日：2000-08-22
申请号：US851759
申请日：1997-05-06
申请人： Thomas A. Freeburg , Paul Odlyzko
发明人： Thomas A. Freeburg , Paul Odlyzko
CPC分类号： H04Q11/0478 , H04L2012/5607 , H04L2012/5649 , H04L2012/5674
摘要： A method of operation of a network (10) of radio stations (e.g. 11, 12 and 13) in which each radio station communicates with at least two other radio stations. A message (32) is sent and a corresponding reply (35) is received between first and second stations (11 and 12). Similar messages are sent between second and third stations (12 and 14) and the first and third stations (11 and 14). A time delay is measured between sending of each message and receiving the corresponding reply. Distances are calculated between each station and each other station and, from the distances, locations for the second and third stations relative to the first station are calculated.
摘要翻译： 一种无线电台（例如11,12和13）的网络（10）的操作方法，其中每个无线电台与至少两个其他无线电台通信。 发送消息（32）并且在第一和第二站（11和12）之间接收相应的应答（35）。 在第二和第三站（12和14）以及第一和第三站（11和14）之间发送类似的消息。 在发送每个消息并接收相应的回复之间测量时间延迟。 在每个站和每个其他站之间计算距离，并且从距离计算第二和第三站相对于第一站的位置。
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公开(公告)号：US5705955A
公开(公告)日：1998-01-06
申请号：US576520
申请日：1995-12-21
申请人： Thomas A. Freeburg , John Ley , Anne M. Pearce , Gary Schulz , Paul Odlyzko
发明人： Thomas A. Freeburg , John Ley , Anne M. Pearce , Gary Schulz , Paul Odlyzko
CPC分类号： H03L7/06
摘要： A frequency-locked loop (100) employs a controllable oscillator (102) for generating an output signal having a frequency, optional sampler (104), coupled to oscillator (102), for sampling the frequency of the output signal, a divider (106), coupled to optional sampling circuit (104), for dividing the output signal frequency to generate a prescaled signal and a microprocessor (108), coupled between the divider 106 and oscillator (102), for comparing the prescaled signal to a reference signal and generating a control signal for correcting frequency shifts based upon the comparison. The control signal generated by microprocessor (108) is non-continuous. During that time when microprocessor (108) generates no control signals, power is removed from various frequency-locked loop circuitry.
摘要翻译： 频率锁定环路（100）采用可控振荡器（102），用于产生具有耦合到振荡器（102）的频率可选取样器（104）的输出信号，用于对输出信号的频率进行采样，分频器（106） ），耦合到可选采样电路（104），用于分频输出信号频率以产生预定信号;耦合在分频器106和振荡器（102）之间的微处理器（108）），用于将预定信号与参考信号进行比较;以及 根据比较产生用于校正频移的控制信号。 由微处理器（108）产生的控制信号是不连续的。 在微处理器（108）不产生控制信号的那段时间内，从各种锁频环路电路去除功率。
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公开(公告)号：US08611274B2
公开(公告)日：2013-12-17
申请号：US12797700
申请日：2010-06-10
IPC分类号： H04B7/212
CPC分类号： H04W72/1263
摘要： A communication system comprises a communication node for scheduling uplink and downlink transmissions in a communication system. The communication node determines based on a first set of parameters of a data associated with the communication node and a second set of parameters of a data associated with one other communication node, whether to load the data associated with the communication node from an end of a data queue buffer. The communication node upon determining to load the data associated with the communication node from the end of the data queue buffer, loads the data associated with the communication node from the end of the data queue buffer. The communication node further determines a start time for transmission of the data associated with the communication node and schedules transmission of the data associated with the communication node at the start time.
摘要翻译： 通信系统包括用于在通信系统中调度上行链路和下行链路传输的通信节点。 通信节点基于与通信节点相关联的数据的第一组参数和与另一个通信节点相关联的数据的第二组参数来确定是否从与所述通信节点的结尾加载与所述通信节点相关联的数据 数据队列缓冲区。 通信节点在确定从数据队列缓冲器的末端加载与通信节点相关联的数据时，从数据队列缓冲器的末尾加载与通信节点相关联的数据。 通信节点还确定用于传输与通信节点相关联的数据的开始时间，并且在开始时间调度与通信节点相关联的数据的传输。
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