Routing-oriented address assignment method in tree-shaped ubiquitous network

An allocation method and network technology, applied in the field of ubiquitous network communication, can solve problems such as unsatisfactory address allocation strategy and address format, frequent topology changes, etc., and achieve the effect of easy implementation and good compatibility

Inactive Publication Date: 2013-10-02
SUZHOU INST FOR ADVANCED STUDY USTC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a routing-oriented address allocation method in a tree-shaped ubiquitous network, which solves the problems in the prior art that the address allocation strategy and address format in a tree-shaped ubiquitous network cannot meet the requirements of relatively frequent topology changes.

Method used

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  • Routing-oriented address assignment method in tree-shaped ubiquitous network
  • Routing-oriented address assignment method in tree-shaped ubiquitous network
  • Routing-oriented address assignment method in tree-shaped ubiquitous network

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Embodiment

[0030] The ubiquitous network in this embodiment is a tree network. Except for the root node, other nodes have one and only one parent node, leaf nodes have no child nodes, and intermediate nodes can have multiple child nodes. The root node is connected to the gateway device.

[0031] 1. The generation and management of the node's network address

[0032] In the hierarchical address encoding format, the address of each layer is an integer type, and its length is 1 byte. The addresses of each layer are spliced ​​together to form the network address of the node.

[0033] Single-layer addresses whose effective bits are all zeros are reserved and not used. Taking a single-layer address as an example, the effective number of digits is 8, and a total of 2 8 -1=255 addresses. When a node tries to request to join the network from the parent node, the parent node assigns it a single-layer address, and then splices the parent node's own network address to form the node's network add...

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Abstract

The invention discloses a routing-oriented address assignment method in a tree-shaped ubiquitous network. The tree-shaped ubiquitous network comprises a leaf node, an intermediate node, and a root node connected with a gateway device, wherein non-root nodes only have a father node and the leaf node has no child node. The method is characterized in that the method comprises the following steps: when the root node starts, an automatic address assignment or an address assignment by the gateway device is carried out; after the root node starts, an address assignment of an entire network starts; the non-root nodes attempt to request an access to the tree-shaped ubiquitous network to the father node in the network; and the father node assigns addresses to the non-root nodes in accordance with a hierarchical address coding format. The address coding format of all the nodes is based on the hierarchical address coding format, and an address length of each layer in an intra-network address coding format is 1 byte. This method can solve the problem that the application scenario and address which are not suitable for the distributed manner cannot assist the routing in the conventional protocol, so that the distributed address assignment and dynamic routing in the ubiquitous network are easy to realize.

Description

technical field [0001] The invention belongs to the technical field of ubiquitous network communication, and in particular relates to a routing-oriented address allocation method in the ubiquitous network based on the IEEE802.15.4 standard. Background technique [0002] BOOTP (Bootstrap Protocol) is a centralized address allocation protocol based on IP / UDP protocol, see Croft, Bill, and John Gilmore."RFC951: BOOTSTRAP PROTOCOL (BOOTP)."Network Working Group, Stanford University, Sun Microsystems (1985) . The BOOTP protocol allows the client to obtain a dynamically assigned IP address from a central server, and does not require each user to set a static IP address. The BOOTP protocol is widely used in IP / UDP networks, but this mechanism will face many challenges when it is applied to the ubiquitous network or the Internet of Things. [0003] These challenges are mainly manifested in: First, the BOOTP protocol cannot adapt to the dynamics of the ubiquitous network topology. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12H04L12/44H04L12/701
Inventor 黄刘生杨晨凯徐宏力周有松
Owner SUZHOU INST FOR ADVANCED STUDY USTC
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