Mobile network time distribution
    4.
    发明授权
    Mobile network time distribution 有权
    移动网络时间分配

    公开(公告)号:US07139346B2

    公开(公告)日:2006-11-21

    申请号:US10216607

    申请日:2002-08-09

    IPC分类号: H04L7/00

    摘要: A method for synchronizing a time architecture of a mobile network that includes a plurality of network components, each having a time subsystem clock that is updated using a network time protocol (NTP) program. The method includes operating the components in a hierarchical fashion and booting up all the network components such that execution of a NTP sub-program for making small incremental changes to the each component time subsystem clock is delayed. Additionally, the method includes iteratively executing a NTP sub-program for making large changes to each component time system clock until each component time sub-system clock establishes an initial synchronization with a parent component time sub-system clock. Furthermore, the method includes iteratively executing the NTP sub-program for making small incremental changes once initial synchronization is established such that each component time sub-system clock maintains synchronization with the parent component time sub-system clock.

    摘要翻译: 一种用于同步包括多个网络组件的移动网络的时间架构的方法,每个网络组件具有使用网络时间协议(NTP)程序更新的时间子系统时钟。 该方法包括以分层方式操作组件并引导所有网络组件,使得对每个组件时间子系统时钟进行小增量改变的NTP子程序的执行被延迟。 此外,该方法包括迭代地执行NTP子程序,用于对每个组件时间系统时钟进行大的改变,直到每个组件时间子系统时钟与父组件时间子系统时钟建立初始同步。 此外,该方法包括迭代地执行NTP子程序,用于在初始同步建立之后进行小的增量更改,使得每个组件时间子系统时钟保持与父组件时间子系统时钟的同步。

    Mobile communications network using point-to-point protocol over ethernet
    5.
    发明授权
    Mobile communications network using point-to-point protocol over ethernet 有权
    移动通信网络使用以太网上的点对点协议

    公开(公告)号:US07054322B2

    公开(公告)日:2006-05-30

    申请号:US09945352

    申请日:2001-08-31

    IPC分类号: H04L12/56

    摘要: A communications system that provides broadband access to passengers of mobile platforms includes a router located on the mobile platform. A network is connected to the router. User communication devices (UCDs) connected to the network, wherein the UCDs establish point-to-point over Ethernet (PPPoE) sessions with the router. A transmitter and a receiver are connected to the router. A satellite and a ground station are in communication with the transmitter and the receiver. A distributed communications system includes virtual private networks (VPN) and is connected to the ground station. A first address manager leases the use of public IP addresses by the mobile platform. A second address manager assigns the public IP addresses to UCDs when the UCDs request access to the VPNs and private IP addresses for other network service. The UCDs employ IPSec protocol when accessing the VPNs.

    摘要翻译: 向移动平台的乘客提供宽带接入的通信系统包括位于移动平台上的路由器。 网络连接到路由器。 连接到网络的用户通信设备(UCD),其中UCD与路由器建立与以太网的点对点(PPPoE)会话。 发射机和接收机连接到路由器。 卫星和地面站与发射机和接收机通信。 分布式通信系统包括虚拟专用网(VPN),并连接到地面站。 第一个地址管理器租用移动平台使用公共IP地址。 当UCD请求访问VPN和其他网络服务的私有IP地址时,第二个地址管理器将公共IP地址分配给UCD。 UCD在接入VPN时采用IPSec协议。