公开(公告)号：US06549780B2

公开(公告)日：2003-04-15

申请号：US09752941

申请日：2000-12-29

申请人： Leonard N. Schiff ,  David S. Miller

发明人： Leonard N. Schiff ,  David S. Miller

IPC分类号： H04Q720

CPC分类号： H04B7/18541

摘要： A handoff technique in which system users detect transitions in service between a current service area and an adjacent service area, and request a forward link channel in the new service area when a detected signal strength for the new service area exceeds predetermined threshold levels. The forward communications link in the current service area is maintained until the strength of the new service area signal reaches a certain level and appropriate channel quality is confirmed, as based on various known criteria. Typically, service area transitions are detected using the signal strength of pilot or paging signals associated with service areas, which are used to determine a relative signal strength of new service area signals. Pilot signal level adjustments used to counter roll-off effects are detected and compensated for in comparing signal levels. To minimize the burden on system resources, new service area signals are not selectable until a minimum time has passed, or a minimum change in energy from a prior pilot signal is detected. In addition, communications using the previous service area can be dropped almost immediately upon engaging the new service area.

摘要翻译： 一种切换技术，其中系统用户检测当前服务区域和相邻服务区域之间服务中的转换，并且当新服务区域的检测到的信号强度超过预定阈值电平时，请求新服务区域中的前向链路信道。 基于各种已知标准，保持当前服务区域中的正向通信链路，直到新服务区域信号的强度达到一定水平，并确认适当的信道质量。 通常，使用用于确定新的服务区域信号的相对信号强度的与服务区域相关联的导频或寻呼信号的信号强度来检测服务区域转换。 在比较信号电平时，检测并补偿用于计算滚降效果的导频信号电平调整。 为了最小化系统资源的负担，新的服务区域信号在最小时间过去之前是不可选择的，或者是从先前的导频信号中检测到能量的最小变化。 此外，使用先前服务区域的通信可以在新服务区域几乎立即被丢弃。

公开(公告)号：US07379758B2

公开(公告)日：2008-05-27

申请号：US10624257

申请日：2003-07-21

申请人： Leonard N. Schiff ,  David S. Miller

发明人： Leonard N. Schiff ,  David S. Miller

IPC分类号： H04M1/00 ,  H04B7/00 ,  H04Q7/00

CPC分类号： H04B7/18519

摘要： A satellite communication system for providing communications between user terminals and gateways constituted with m primary satellites. In one embodiment, n back up satellites are also provided. Further, each satellite, primary or back-up, is equipped to project N/m beams onto and across an area in a loosely-packed array manner. M of the m primary and n back-up satellites collectively create N beam spots to cover the area. Moreover, each sub-area is covered by a beam spot separated from another sub-area covered by another beam spot by one beam width. Each satellite is also equipped to facilitate communication over 1 of m band of frequencies on one beam. As a result, any of the m primary satellites may be efficiently replaced on demand by a selected one of the n back-up satellites. The gateways and user terminals are configured to communicate signals through or with both or either the primary and back-up satellites.

摘要翻译： 一种卫星通信系统，用于在由m个主卫星构成的用户终端和网关之间提供通信。 在一个实施例中，还提供n个备用卫星。 此外，每个卫星，主要或备用装备，以松散排列的方式将N / m波束投射到一个区域上并跨越一个区域。 m个主要和n个后备卫星的M共同创造N个光束点以覆盖该区域。 此外，每个子区域被从另一个光束点覆盖一个光束宽度的另一个子区域分离的光束点覆盖。 每个卫星还配备了一个波束上的m个频带范围内的通信。 结果，可以根据需要由n个备用卫星中的所选择的一个有效地替换任何一个m个主卫星。 网关和用户终端被配置为通过或与主卫星和后备卫星两者或任一者传送信号。

公开(公告)号：US07852800B2

公开(公告)日：2010-12-14

申请号：US10602358

申请日：2003-06-23

申请人： Leonard N. Schiff ,  David S. Miller

发明人： Leonard N. Schiff ,  David S. Miller

IPC分类号： H04B7/212

CPC分类号： H04L1/0083 ,  H04L1/0006 ,  H04L1/0025

摘要： Time-scattering of data is employed to reduce the interference effects, such as, error rate, between terminals disposed in nearby beams, or cells, of a communication system. A scattering schedule is determined, typically by a gateway, for a terminal. Scattering instructions, based at least in part on that scattering schedule, are provided to the terminal. The scattering instructions provide terminals with information suitable for controlling the temporal scattering of time slot data to be transmitted by the terminals so that interference impact of nearby out-of-beam terminals is reduced. Time-scattered data received by a receiver remote from the terminal is returned to the desired order by sorting the data in accordance with the scattering schedule to achieve a reversing of the scattering. Time-scattering may be applied to data moving in either or both of the forward and reverse directions of a communication system.

摘要翻译： 使用数据的时间散射来减少设置在通信系统的附近波束或小区中的终端之间的干扰效应，例如错误率。 通常由网关为终端确定散射调度。 至少部分地基于该散射计划的散射指令被提供给终端。 散射指令为终端提供适合于控制由终端发送的时隙数据的时间散射的信息，使得减少附近的射束外终端的干扰影响。 远离终端的接收器接收的时分散数据通过根据散射表排序数据而返回到所需的顺序，以实现散射的反转。 时间散射可以应用于在通信系统的正向和反向方向中的任一个或两者中移动的数据。

公开(公告)号：US08744344B2

公开(公告)日：2014-06-03

申请号：US12126337

申请日：2008-05-23

申请人： Leonard N. Schiff ,  David S. Miller

发明人： Leonard N. Schiff ,  David S. Miller

IPC分类号： H04B7/185

CPC分类号： H04B7/18519

摘要： A satellite communication system for providing communications between user terminals and gateways constituted with m primary satellites. In one embodiment, n back up satellites are also provided. Further, each satellite, primary or back-up, is equipped to project N/m beams onto and across an area in a loosely-packed array manner. M of the m primary and n back-up satellites collectively create N beam spots to cover the area. Moreover, each sub-area is covered by a beam spot separated from another sub-area covered by another beam spot by one beam width. Each satellite is also equipped to facilitate communication over 1 of m band of frequencies on one beam. AS a result, any of the m primary satellites may be efficiently replaced on demand by a selected one of the n back-up satellites. The gateways and user terminals are configured to communicate signals through or with both or either the primary and back-up satellites.

摘要翻译： 一种卫星通信系统，用于在由m个主卫星构成的用户终端和网关之间提供通信。 在一个实施例中，还提供n个备用卫星。 此外，每个卫星，主要或备用装备，以松散排列的方式将N / m波束投射到一个区域上并跨越一个区域。 m个主要和n个后备卫星的M共同创造N个光束点以覆盖该区域。 此外，每个子区域被从另一个光束点覆盖一个光束宽度的另一个子区域分离的光束点覆盖。 每个卫星还配备了一个波束上的m个频带范围内的通信。 结果，可以根据需要由n个备用卫星中的所选择的一个有效地替换任何一个m个主卫星。 网关和用户终端被配置为通过或与主卫星和后备卫星两者或任一者传送信号。

公开(公告)号：US08121536B2

公开(公告)日：2012-02-21

申请号：US10625167

申请日：2003-07-22

申请人： Leonard N. Schiff ,  David S. Miller

发明人： Leonard N. Schiff ,  David S. Miller

IPC分类号： H04B7/185

CPC分类号： H04B7/18532 ,  Y02D70/446

摘要： A quality measure, such as a signal-to-noise ratio, of a signal arriving at a gateway for a return link is used to adjust a data rate for the link. The return link is transferred from a terminal to the gateway through a satellite, and shared by a number of user terminals at any given time, including the terminal for which the data rate is adjusted. The terminals sharing the link have a certain interference relationship. Adjusting a data rate for a message sent from one or more terminals through the return link in the presence of signal degradation or power loss does not appreciably change the interference relationship among the plurality of terminals.

摘要翻译： 使用到达用于返回链路的网关的信号的质量度量（例如信噪比）来调整链路的数据速率。 返回链路通过卫星从终端传送到网关，并在任何给定时间由多个用户终端共享，包括调整数据速率的终端。 共享链路的终端具有一定的干扰关系。 在存在信号劣化或功率损耗的情况下，通过返回链路调整从一个或多个终端发送的消息的数据速率，不会明显改变多个终端之间的干扰关系。

公开(公告)号：US07920543B2

公开(公告)日：2011-04-05

申请号：US11620630

申请日：2007-01-05

申请人： Leonard N. Schiff ,  David S. Miller ,  Sumantra Chakravarty

发明人： Leonard N. Schiff ,  David S. Miller ,  Sumantra Chakravarty

IPC分类号： H04J3/24

CPC分类号： H04W52/46 ,  H04W4/12 ,  H04W64/00 ,  H04W88/04

摘要： A broadband terrestrial message delivery system includes a plurality of wireless communication devices (WCDs), each including a receiver and transmitter, the WCDs capable of not only receiving messages destined for a subscriber associated with a particular WCD, but further capable of acting as a relay point to move messages to and from other subscribers. Message diffusion includes relaying the messages in accordance with all earmark that specifies both the total number of times (N) a message is to be repeated, and the number of times (i) the received message has already been repeated. Methods of improving the spectral efficiency of such a message diffusion architecture include adding a propagation ring width control parameter (J) to the earmark such that a WCD acting in relay mode transmits no more than J repetitions of the message; and providing sectorization such that several sectorized message pathways in a cell may be simultaneously active.

摘要翻译： 宽带地面消息传送系统包括多个无线通信设备（WCD），每个无线通信设备（WCD）包括接收机和发射机，该WCD能够不仅接收去往与特定WCD相关联的订户的消息，而且能够充当中继 指向其他用户移动消息。 消息扩散包括根据指定要重复的消息的总次数（N）的所有指定项目以及已经重复接收到的消息的次数（i）来中继消息。 提高这种消息扩散架构的频谱效率的方法包括将传播环宽度控制参数（J）添加到指定项目，使得以中继模式行动的WCD传送不超过该消息的J个重复; 并且提供扇区化，使得小区中的几个分段消息路径可以同时活动。

公开(公告)号：US20090051589A1

公开(公告)日：2009-02-26

申请号：US12126337

申请日：2008-05-23

申请人： Leonard N. Schiff ,  David S. Miller

发明人： Leonard N. Schiff ,  David S. Miller

IPC分类号： H04B7/185

CPC分类号： H04B7/18519

摘要： A satellite communication system for providing communications between user terminals and gateways constituted with m primary satellites. In one embodiment, n back up satellites are also provided. Further, each satellite, primary or back-up, is equipped to project N/m beams onto and across an area in a loosely-packed array manner. M of the m primary and n back-up satellites collectively create N beam spots to cover the area. Moreover, each sub-area is covered by a beam spot separated from another sub-area covered by another beam spot by one beam width. Each satellite is also equipped to facilitate communication over 1 of m band of frequencies on one beam. AS a result, any of the m primary satellites may be efficiently replaced on demand by a selected one of the n back-up satellites. The gateways and user terminals are configured to communicate signals through or with both or either the primary and back-up satellites.

摘要翻译： 一种卫星通信系统，用于在由m个主卫星构成的用户终端和网关之间提供通信。 在一个实施例中，还提供n个备用卫星。 此外，每个卫星，主要或备用装备，以松散排列的方式将N / m波束投射到一个区域上并跨越一个区域。 m个主要和n个后备卫星的M共同创造N个光束点以覆盖该区域。 此外，每个子区域被从另一个光束点覆盖一个光束宽度的另一个子区域分离的光束点覆盖。 每个卫星还配备了一个波束上的m个频带范围内的通信。 结果，可以根据需要由n个备用卫星中的所选择的一个有效地替换任何一个m个主卫星。 网关和用户终端被配置为通过或与主卫星和后备卫星两者或任一者传送信号。

公开(公告)号：US06233456B1

公开(公告)日：2001-05-15

申请号：US08722330

申请日：1996-09-27

申请人： Leonard N. Schiff ,  David S. Miller

发明人： Leonard N. Schiff ,  David S. Miller

IPC分类号： H04Q720

CPC分类号： H04B7/18541

摘要： A handoff technique in which system users detect transitions in service between a current service area and an adjacent service area, and request a forward link channel in the new service area when a detected signal strength for the new service area exceeds predetermined threshold levels. The forward communications link in the current service area is maintained until the strength of the new service area signal reaches a certain level and appropriate channel quality is confirmed, as based on various known criteria. Typically, service area transitions are detected using the signal strength of pilot or paging signals associated with service areas, which are used to determine a relative signal strength of new service area signals. Pilot signal level adjustments used to counter roll-off effects are detected and compensated for in comparing signal levels. To minimize the burden on system resources, new service area signals are not selectable until a minimum time has passed, or a minimum change in energy from a prior pilot signal is detected. In addition, communications using the previous service area can be dropped almost immediately upon engaging the new service area.

摘要翻译： 一种切换技术，其中系统用户检测当前服务区域和相邻服务区域之间服务中的转换，并且当新服务区域的检测到的信号强度超过预定阈值电平时，请求新服务区域中的前向链路信道。 基于各种已知标准，保持当前服务区域中的正向通信链路，直到新服务区域信号的强度达到一定水平，并且确认适当的信道质量。 通常，使用用于确定新的服务区域信号的相对信号强度的与服务区域相关联的导频或寻呼信号的信号强度来检测服务区域转换。 在比较信号电平时，检测并补偿用于计算滚降效果的导频信号电平调整。 为了最小化系统资源的负担，新的服务区域信号在最小时间过去之前是不可选择的，或者是从先前的导频信号中检测到能量的最小变化。 此外，使用先前服务区域的通信可以在新服务区域几乎立即被丢弃。

公开(公告)号：US07751371B2

公开(公告)日：2010-07-06

申请号：US11492499

申请日：2006-07-24

申请人： Ephraim Zehavi ,  David S. Miller ,  Judith LaRocca

发明人： Ephraim Zehavi ,  David S. Miller ,  Judith LaRocca

IPC分类号： H04B7/216

CPC分类号： H04L1/0071 ,  H04B7/18543 ,  H04B7/216 ,  H04J13/0022 ,  H04J13/0048 ,  H04J13/18

摘要： A variable rate transmission system where a packet of variable rate data is transmitted on a traffic channel if the capacity of the traffic channel is greater than or equal to the data rate of the packet. When the rate of the packet of variable rate data exceeds the capacity of the traffic channel, the packet is transmitted on a traffic channel and at least one overflow channel. Also described is a receiving system for receiving and reassembling the data transmitted on the traffic channel and at least one additional overflow channel.

摘要翻译： 可变速率传输系统，其中如果业务信道的容量大于或等于分组的数据速率，则在业务信道上发送可变速率数据的分组。 当可变速率数据的分组的速率超过业务信道的容量时，分组在业务信道和至少一个溢出信道上发送。 还描述了一种用于接收和重新组合在业务信道上发送的数据和至少一个附加溢出信道的接收系统。

公开(公告)号：US06310874B1

公开(公告)日：2001-10-30

申请号：US09044294

申请日：1998-03-19

申请人： David S. Miller ,  Lawrence Aaron Boxer ,  Edward A. Heiner, Jr.

发明人： David S. Miller ,  Lawrence Aaron Boxer ,  Edward A. Heiner, Jr.

IPC分类号： H04L1250

CPC分类号： H04L29/12018 ,  H04L12/185 ,  H04L29/06 ,  H04L29/12009 ,  H04L29/12801 ,  H04L61/00 ,  H04L61/10 ,  H04L61/6004

摘要： Flow of data units to an address resolution processor is controlled to inhibit multiple data units from a single multicast flow from being enqueued with the address resolution processor. In a switch having a plurality of Input/Output Application Specific Integrated Circuits (“I/O ASICs”) with a plurality of ports, no more than one data unit from each I/O ASIC is permitted to be enqueued with the address resolution processor at any point in time. A separate learn pending indicator may be defined for each I/O ASIC in the switch.

摘要翻译： 控制数据单元到地址解析处理器的流程，以阻止来自单个多播流的多个数据单元与地址解析处理器一起排队。 在具有多个具有多个端口的多个输入/输出专用集成电路（“I / O ASIC”）的开关中，来自每个I / O ASIC的不超过一个数据单元被允许用地址解析处理器 在任何时间点。 可以为交换机中的每个I / O ASIC定义单独的学习挂起指示符。