SYSTEM AND METHOD FOR EFFICIENT BROADCAST OF SATELLITE CONSTELLATION EPHEMERIS INFORMATION

    公开(公告)号:US20180074208A1

    公开(公告)日:2018-03-15

    申请号:US15700098

    申请日:2017-09-09

    IPC分类号: G01S19/25 G01S19/05

    摘要: Approaches for efficient broadcast of satellite ephemeris information or data in NGSO satellite systems, based on Keplerian parametric models of the satellite orbits, are provided. Keplerian orbit parameters are utilized (e.g., parametric orbit models) for improved efficiency in broadcast of ephemeris data over use of point-wise vectors. The linear change and harmonic variations in Keplerian orbit parameters are accounted for, for example, based on the specification of the linear and harmonic terms, increasing accuracy and extending duration of validity of the orbit parameters. Data compression is employed by (i) differential encoding of orbital parameters, and (ii) exploiting the correlation between the harmonic (Fourier) coefficients model of the orbit parameters. An efficient transport mechanism entails classification of information in Classes with different repetition/update rates based on information types, significantly reducing required broadcast/update data rates while allowing for a wide variation in the orbit orientation.

    Method for identifying reusable multiplexing resources and telecommunications system
    4.
    发明授权
    Method for identifying reusable multiplexing resources and telecommunications system 有权
    识别可重用复用资源和电信系统的方法

    公开(公告)号:US09462595B2

    公开(公告)日:2016-10-04

    申请号:US14351135

    申请日:2012-10-12

    申请人: ASTRIUM SAS

    IPC分类号: H04W72/08 H04W72/04 H04B7/185

    摘要: A method and telecommunications system for identifying uplink multiplexing resources of a multi-beam satellite that are usable in a land-based telecommunications system, e.g., a transmitting station for transmitting radio signals to a receiving station. The transmitting station or the receiving station being a base station having a range defining a coverage area. For a given uplink multiplexing resource, a maximum allowable interference level, with respect to the satellite, for radio-electric signals transmitted from the coverage area is estimated. A potential interference level of the transmitting station is estimated. The transmitting station determines the usability of the given uplink multiplexing resource by comparing the potential interference level with the maximum allowed interference level for the given uplink multiplexing resource.

    摘要翻译: 一种用于识别在基于陆地的电信系统中可用的多波束卫星的上行链路复用资源的方法和电信系统,例如用于向接收站发射无线电信号的发射台。 发送站或接收站是具有定义覆盖区域的范围的基站。 对于给定的上行链路复用资源,估计相对于卫星的从覆盖区域发射的无线电信号的最大可允许干扰电平。 估计发射站的潜在干扰电平。 发送站通过将潜在干扰电平与给定上行链路复用资源的最大允许干扰电平进行比较来确定给定上行链路复用资源的可用性。

    METHOD FOR IDENTIFYING REUSABLE MULTIPLEXING RESOURCES AND TELECOMMUNICATIONS SYSTEM
    5.
    发明申请
    METHOD FOR IDENTIFYING REUSABLE MULTIPLEXING RESOURCES AND TELECOMMUNICATIONS SYSTEM 有权
    识别可重复使用的多路复用资源和电信系统的方法

    公开(公告)号:US20140321358A1

    公开(公告)日:2014-10-30

    申请号:US14351135

    申请日:2012-10-12

    申请人: ASTRIUM SAS

    IPC分类号: H04B7/185

    摘要: A method and telecommunications system for identifying uplink multiplexing resources of a multi-beam satellite that are usable in a land-based telecommunications system, e.g., a transmitting station for transmitting radio signals to a receiving station. The transmitting station or the receiving station being a base station having a range defining a coverage area. For a given uplink multiplexing resource, a maximum allowable interference level, with respect to the satellite, for radio-electric signals transmitted from the coverage area is estimated. A potential interference level of the transmitting station is estimated. The transmitting station determines the usability of the given uplink multiplexing resource by comparing the potential interference level with the maximum allowed interference level for the given uplink multiplexing resource.

    摘要翻译: 一种用于识别在基于陆地的电信系统中可用的多波束卫星的上行链路复用资源的方法和电信系统,例如用于向接收站发射无线电信号的发射台。 发送站或接收站是具有定义覆盖区域的范围的基站。 对于给定的上行链路复用资源,估计相对于卫星的从覆盖区域发射的无线电信号的最大可允许干扰电平。 估计发射站的潜在干扰电平。 发送站通过将潜在干扰电平与给定上行链路复用资源的最大允许干扰电平进行比较来确定给定上行链路复用资源的可用性。

    MULTI-SATELLITE ARCHITECTURE
    6.
    发明申请
    MULTI-SATELLITE ARCHITECTURE 有权
    多卫星建筑

    公开(公告)号:US20100265879A1

    公开(公告)日:2010-10-21

    申请号:US12761941

    申请日:2010-04-16

    IPC分类号: H04B7/185

    CPC分类号: H04B7/18584 H04B7/18591

    摘要: A satellite networking system is described. The system includes a first satellite, a second satellite, and a core network. The core node is configured to provide a plurality of services. The system further includes a first gateway in communication with the first satellite and the core network, and a second gateway in communication with the second satellite and the core network. The first satellite is configured to share the plurality of services with the second satellite through the first and second gateways.

    摘要翻译: 描述了卫星联网系统。 该系统包括第一卫星,第二卫星和核心网络。 核心节点被配置为提供多个服务。 该系统还包括与第一卫星和核心网络通信的第一网关,以及与第二卫星和核心网络通信的第二网关。 第一卫星被配置为通过第一和第二网关与第二卫星共享多个服务。

    SPACE SHIFTING OVER FORWARD SATELLITE COMMUNICATION CHANNELS
    7.
    发明申请
    SPACE SHIFTING OVER FORWARD SATELLITE COMMUNICATION CHANNELS 审中-公开
    空中移动通过前向卫星通信信道

    公开(公告)号:US20100229206A1

    公开(公告)日:2010-09-09

    申请号:US12716186

    申请日:2010-03-02

    申请人: Mark D. Dankberg

    发明人: Mark D. Dankberg

    IPC分类号: H04N7/20

    摘要: A method for providing content from a first node to a second node using a satellite communications system includes receiving side information at a subscriber terminal in the satellite communications system. The side information may be transmitted from a gateway to the subscriber terminal via a first communication path that includes a satellite link. The method also includes determining at the subscriber terminal that the side information is associated with first content available at the first node, and determining at the subscriber terminal that second content is available from a source other than the first node. The method also includes generating output content using the second content and the side information. The output content may be substantially the same as the first content. The method also includes providing the output content to the second node via a second communication path that does not include the satellite link.

    摘要翻译: 使用卫星通信系统从第一节点向第二节点提供内容的方法包括在卫星通信系统中的用户终端处接收侧信息。 侧信息可以经由包括卫星链路的第一通信路径从网关发送到用户终端。 该方法还包括在用户终端确定侧信息与第一节点可用的第一内容相关联,以及在用户终端确定第二内容可从不同于第一节点的源获得。 该方法还包括使用第二内容和侧面信息来生成输出内容。 输出内容可以与第一内容基本相同。 该方法还包括经由不包括卫星链路的第二通信路径向第二节点提供输出内容。

    Satellites using inter-satellite links to create indirect feeder link paths
    8.
    发明授权
    Satellites using inter-satellite links to create indirect feeder link paths 有权
    卫星使用卫星间链路创建间接馈线链路路径

    公开(公告)号:US07738837B2

    公开(公告)日:2010-06-15

    申请号:US11313572

    申请日:2005-12-21

    IPC分类号: H04B7/185

    CPC分类号: H04B7/18521 H04B7/18591

    摘要: Methods of providing a feeder link between a first substantially geo-stationary satellite and a satellite gateway include establishing a communications link between the satellite gateway and a second substantially geo-stationary satellite, establishing an inter-satellite communications link between the first substantially geo-stationary satellite and the second substantially geo-stationary satellite, and communicating between the first substantially geo-stationary satellite and the satellite gateway via the inter-satellite communications link and the communications link. A satellite communications system includes first and second substantially geo-stationary satellites configured to establish an inter-satellite communications link therebetween, and a satellite gateway configured to establish a direct feeder link with one of the first and second substantially geo-stationary satellites and to establish an indirect feeder link with the other of the first and second substantially geo-stationary satellites using the inter-satellite communications link and the direct feeder link.

    摘要翻译: 在第一基本地球静止卫星和卫星网关之间提供馈线链路的方法包括在卫星网关和第二基本上是地球静止的卫星之间建立通信链路,在第一基本上地平稳的卫星之间建立卫星间通信链路 卫星和第二基本地球静止的卫星,以及经由卫星间通信链路和通信链路在第一基本上地球静止的卫星和卫星网关之间进行通信。 一种卫星通信系统包括:第一和第二基本上地球静止的卫星,其被配置为在其间建立卫星间通信链路;以及卫星网关,被配置为与第一和第二基本地球卫星之一建立直接馈线链路,并建立 使用卫星间通信链路和直接馈送链路与第一和第二基本地球静止卫星中的另一个的间接馈送链路。

    Satellite based data transfer and delivery system
    9.
    发明申请
    Satellite based data transfer and delivery system 有权
    卫星数据传输和传送系统

    公开(公告)号:US20060035669A1

    公开(公告)日:2006-02-16

    申请号:US11198774

    申请日:2005-08-05

    IPC分类号: H04B1/38 H04M1/00

    摘要: A high speed data transfer system includes a WAU (201) which is utilized to provide high speed access to satellite transferred data. The system is configured such that a plurality of data utilization (205) may access the high speed data via wireless links to the WAU (201). Advantageously, high speed data services may be provided to users without the users requiring individual satellite antennas.

    摘要翻译: 高速数据传输系统包括用于提供对卫星传输数据的高速接入的WAU(201)。 该系统被配置为使得多个数据利用(205)可以经由到WAU(201)的无线链路访问高速数据。 有利地,可以向用户提供高速数据服务,而不需要使用各个卫星天线的用户。

    High performance ECL-to-ATM protocol network gateway

    公开(公告)号:US06982964B2

    公开(公告)日:2006-01-03

    申请号:US09977419

    申请日:2001-10-15

    申请人: David R. Beering

    发明人: David R. Beering

    IPC分类号: H04B7/185

    CPC分类号: H04B7/18591

    摘要: A network protocol translation device that allows serial data sent using the standard Asynchronous Transfer Mode (ATM) protocol to be used between two locations, using a satellite link or a terrestrial wireless link between the two locations. This is done by translating the standard ATM data to a standard satellite modem interface at one location, and translating the data back to the ATM format at the second (remote) location. The translation can occur at any data rate up to the available effective bandwidth of the ATM connection. The device is also capable of providing Forward Error Correction in the protocol translation. The device is functionally transparent to protocols above ATM, i.e., IP, UDP and TCP. It also interfaces with standard physical layers below ATM such as Synchronous Optical Network (SONET). At the satellite interface, the device is compatible with (but not limited to) Emitter Coupled Logic (ECL).