TRAFFIC CLASS POOL SIZING FOR A SATELLITE COMMUNICATIONS SYSTEM
    51.
    发明申请
    TRAFFIC CLASS POOL SIZING FOR A SATELLITE COMMUNICATIONS SYSTEM 有权
    用于卫星通信系统的交通流量池

    公开(公告)号:US20100118766A1

    公开(公告)日:2010-05-13

    申请号:US12615709

    申请日:2009-11-10

    申请人: Anil Agarwal

    发明人: Anil Agarwal

    IPC分类号: H04B7/185

    CPC分类号: H04B7/18578

    摘要: Novel satellite communications systems, methods, and related devices are described. In some embodiments, a satellite communications system is configured to dynamically allocate bandwidth to terminals. Such a system may be made up of a satellite in communication with terminals (e.g., user terminals or gateways). The satellite or a Network Control Center (NCC) may receive and compile bandwidth request data from the terminals. In each of a series of one or more epochs, and according to the bandwidth requests, the satellite and/or NCC may allocate carrier group resources to particular traffic classes. The assignment of allocated resources to particular terminals is also described.

    摘要翻译: 描述了新型卫星通信系统,方法和相关设备。 在一些实施例中,卫星通信系统被配置为向终端动态分配带宽。 这样的系统可以由与终端(例如,用户终端或网关)通信的卫星组成。 卫星或网络控制中心(NCC)可以从终端接收和编译带宽请求数据。 在一系列一个或多个历元中的每一个中,并且根据带宽请求,卫星和/或NCC可以将特定业务类别的载波组资源分配。 还分配了分配给特定终端的资源。

    TERMINAL SELF-SYNCHRONIZATION FOR MESH SATELLITE COMMUNICATIONS
    52.
    发明申请
    TERMINAL SELF-SYNCHRONIZATION FOR MESH SATELLITE COMMUNICATIONS 有权
    用于卫星通信的终端自同步信号

    公开(公告)号:US20100085909A1

    公开(公告)日:2010-04-08

    申请号:US12574068

    申请日:2009-10-06

    申请人: Anil Agarwal

    发明人: Anil Agarwal

    IPC分类号: H04J3/08 H04B7/19

    CPC分类号: H04B7/18513

    摘要: Methods, systems, and devices are described for synchronization in mesh satellite communications. The arrival time of the gateway signal may be used to set a start of receive frame time for a terminal. A received control signal from the gateway may then be used to set a start of transmit frame time for the user terminal. The distance between the satellite and the gateway may change. Ephemeris data, various collections of terminal measurements, or terminal sync bursts may be used to modify start of transmit frame or start of receive frame settings for the terminal or gateway.

    摘要翻译: 描述了网状卫星通信中的同步方法,系统和设备。 网关信号的到达时间可以用于设置终端的接收帧时间的开始。 然后可以使用来自网关的接收到的控制信号来设置用户终端的发送帧时间的开始。 卫星和网关之间的距离可能会改变。 星历数据,终端测量的各种集合或终端同步突发可以用于修改终端或网关的发送帧的开始或接收帧设置的开始。

    DISTRIBUTION OF ROUTING TABLES FOR SATELLITE WITH REFERENCE TERMINAL FUNCTIONALITY
    54.
    发明申请
    DISTRIBUTION OF ROUTING TABLES FOR SATELLITE WITH REFERENCE TERMINAL FUNCTIONALITY 有权
    具有参考终端功能的卫星路由表分配

    公开(公告)号:US20080219206A1

    公开(公告)日:2008-09-11

    申请号:US12044742

    申请日:2008-03-07

    IPC分类号: H04B7/185

    摘要: Satellite communications systems, methods, and related devices are described. A satellite communications system may include routing and switching functionality onboard the satellite. Such a system may include a satellite in communication with terminals (e.g., subscriber terminals or gateways) either directly, or via one or more other satellites through an inter-satellite link. The satellite may be configured with different beams which each provide service to a coverage area. A ground-based network control center (NCC) may dynamically allocate bandwidth and process data measured on the satellite. A novel partition of functionality between the satellite and the NCC is described. Routing paths on the satellite, and the distribution of routing tables within the system, are described as well.

    摘要翻译: 描述卫星通信系统,方法和相关设备。 卫星通信系统可以包括卫星上的路由和交换功能。 这样的系统可以包括通过卫星间链路直接或经由一个或多个其他卫星与终端(例如,用户终端或网关)进行通信的卫星。 卫星可以配置有不同的波束,每个波束向覆盖区域提供服务。 地面网络控制中心(NCC)可以动态分配卫星上测量的带​​宽和处理数据。 描述了卫星和NCC之间功能的新颖划分。 还描述了卫星上的路由路径以及系统内路由表的分布。

    NETWORK LAYER ERROR CONTROL SYSTEMS AND METHODS
    55.
    发明申请
    NETWORK LAYER ERROR CONTROL SYSTEMS AND METHODS 有权
    网络层错误控制系统和方法

    公开(公告)号:US20080175247A1

    公开(公告)日:2008-07-24

    申请号:US12019287

    申请日:2008-01-24

    申请人: Anil Agarwal

    发明人: Anil Agarwal

    IPC分类号: H04L12/56

    摘要: Systems, methods, and devices for novel error detection and retransmission processes are described. These processes may be implemented on intermediate communication links between two end terminals, wherein the intermediate links are via satellite. Error control mechanisms to detect and retransmit lost or corrupted frames may be implemented at the network layer, or between the network and data link layers. Processes for discovering error control protocol-aware terminals are described. Features of these error control processes may include a configurable delay limit, tailored to traffic type or class.

    摘要翻译: 描述了用于新颖的错误检测和重传过程的系统,方法和设备。 这些过程可以在两个终端之间的中间通信链路上实现,其中中间链路经由卫星。 用于检测和重传丢失或损坏的帧的错误控制机制可以在网络层或网络和数据链路层之间实现。 描述用于发现错误控制协议感知终端的过程。 这些错误控制过程的特征可以包括根据流量类型或类别而定制的可配置延迟限制。

    Frame format and frame assembling/disassembling method for the frame format
    57.
    发明申请
    Frame format and frame assembling/disassembling method for the frame format 有权
    帧格式和帧格式的组装/拆卸方法

    公开(公告)号:US20050220110A1

    公开(公告)日:2005-10-06

    申请号:US11141015

    申请日:2005-06-01

    申请人: Anil Agarwal

    发明人: Anil Agarwal

    IPC分类号: H04L1/00 H04L12/28 H04L12/56

    摘要: A method of assembling a plurality of frames including cell/packet-formatted data according to a predetermined frame format for transmission in a communication signal in a wireless or satellite environment. The method begins by assembling a data payload for each frame having a first variable size, including at least one of a partial data cell/packet and a complete data cell/packet. Then, for each frame a block code having a second variable size is generated for use in error correction. Each frame is provided with a frame header which defines aspects of said frame. Finally, the data payload, the block code and the format header are combined to form a frame corresponding to the plurality of frames, the format header defining a first portion of the frame, the data payload defining a second portion of the frame and the block code defining a third portion of the frame.

    摘要翻译: 一种根据预定的帧格式组合包括小区/分组格式的数据的多个帧的方法,用于在无线或卫星环境中的通信信号中传输。 该方法通过组装具有第一可变大小的每个帧的数据有效载荷开始,包括部分数据信元/分组和完整数据信元/分组中的至少一个。 然后,对于每个帧,生成具有第二可变大小的块代码用于纠错。 每个帧都具有一个定义所述帧的方面的帧头。 最后,数据有效载荷,块码和格式头被组合以形成对应于多个帧的帧,格式头定义帧的第一部分,数据有效载荷限定帧的第二部分和块 定义帧的第三部分的代码。

    High-speed differential preamplifier
    58.
    发明授权
    High-speed differential preamplifier 有权
    高速差分前置放大器

    公开(公告)号:US06768384B1

    公开(公告)日:2004-07-27

    申请号:US09987628

    申请日:2001-11-15

    IPC分类号: H03F308

    CPC分类号: H03F3/087

    摘要: A high-gain, high-speed differential preamplifier is described, in which a current source is coupled to one input of a differential amplifier and the other input of the differential amplifier is coupled to a sensor. In one implementation, the current source includes a field effect transistor operating in saturation mode and a bipolar junction transmitter in an emitter follower configuration.

    摘要翻译: 描述了一种高增益高速差分前置放大器,其中电流源耦合到差分放大器的一个输入,而差分放大器的另一个输入耦合到传感器。 在一个实现中,电流源包括以饱和模式工作的场效应晶体管和在射极跟随器配置中的双极结发射器。