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2. 发明授权

US07054314B2 Controlling multiple nodes divided into groups 有权
标题翻译：控制多个节点分组
公开(公告)号：US07054314B2
公开(公告)日：2006-05-30
申请号：US09933260
申请日：2001-08-20
申请人： Mahshid Ellie Abdollahi , Sanjay Bhatia , Javad M. Esmaeili
发明人： Mahshid Ellie Abdollahi , Sanjay Bhatia , Javad M. Esmaeili
IPC分类号： H04L12/28
CPC分类号： H04L65/4076 , H04B7/18582 , H04L41/0213 , H04L41/0893 , H04L69/22
摘要： A broadcast satellite network transmits from a source to multiple router nodes digital real-time program information and best-effort data. The router nodes are specifically suited for extracting best-effort data streams from the multiplexed signal received via, e.g., a satellite. A number of management techniques are disclosed. According to one technique, a packet is formed having a network layer header, including a destination address for routing a packet to a destination, a second header identifying a syntax and semantic by which a payload of the packet may be parsed in a predefined fashion, and a payload containing a command to be executed by each of one or more to-be-managed nodes to which the packet is destined. The packet is transmitted a plural amount of times to a plurality of nodes, including the one or more to-be-managed nodes, but the command in the particular packet is executed only a single time. According to other techniques, the nodes are divided into groups. In one technique, a unique identifier is assigned to each group and the packet containing the command contains the identifier. The packet is transmitted once but received by all nodes, including the group of nodes to which the same identifier was assigned. Only those nodes of the group with the same identifier execute the command. According to anther embodiment, a manager node maintains a list of the addresses of all nodes in a group and automatically transmits the packet once to each address, thereby enabling automatic communication of the same packet to multiple nodes.
摘要翻译：广播卫星网络从源传输到多个路由器节点数字实时节目信息和尽力而为数据。路由器节点特别适用于从例如卫星接收的复用信号中提取尽力而为数据流。公开了一些管理技术。根据一种技术，形成具有网络层报头的分组，其包括用于将分组路由到目的地的目的地地址，识别分组的有效载荷可以以预定方式解析的语法和语义的第二标题，以及包含要由分组所去往的一个或多个被管理节点中的每一个执行的命令的有效载荷。该分组被发送到包括一个或多个待管理节点的多个节点的多个次数，但是特定分组中的命令仅被执行一次。根据其他技术，节点被分成几组。在一种技术中，将唯一的标识符分配给每个组，并且包含命令的分组包含标识符。数据包被传输一次，但由所有节点接收，包括分配了相同标识符的节点组。只有具有相同标识符的组的那些节点才能执行命令。根据另一实施例，管理节点维护组中所有节点的地址列表，并自动地将数据包一次发送到每个地址，从而能够将相同的分组自动通信到多个节点。

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