A routing method and device

A routing and destination technology, applied in the field of communication, can solve problems such as unsupported channel selection, large-scale networking obstacles, and network performance degradation.

Active Publication Date: 2021-05-04
ZTE CORP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] 1) Poor adaptability to heterogeneous networks
[0014] The size of the control message sent by the multi-interface OLSR protocol on each interface is the same as the sending time interval, and all interfaces are treated equally, without considering the bandwidth difference between different channels
[0015] 2) IP addresses occupy more
The practice of assigning multiple IP addresses to each node is a great waste of limited IP address resources, creating obstacles for large-scale networking
[0017] 3) Does not support channel selection
The minimum number of hops does not consider the impact of packet loss rate and channel bandwidth on route selection, and the optimal route cannot be selected, resulting in a decrease in network performance

Method used

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Embodiment Construction

[0076] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0077] figure 2 It is a flowchart of the routing method of the embodiment of the present invention, such as figure 2 As shown, the method of the present embodiment includes:

[0078] Step 11, node receives Hello (greeting) message and TC (Topology Control, topology control) message;

[0079] Step 12, establish a route according to the Hello message and the TC message, the Hello message carries the unique IP address of each neighbor node, and the specified bit on the IP address is used to indicate that the node and the corresponding neighbor node are in all channels adjac...

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Abstract

The present invention provides a routing method and device. The method is applied to a heterogeneous wireless network, including: a node receives a Hello message and a topology control TC message; establishes a route according to the Hello message and the TC message, and the Hello message It carries the unique IP address of each neighbor node, and the specified bits on the IP address are used to indicate the adjacency relationship between this node and the corresponding neighbor node on all channels. The present invention can transmit routing messages on some channels to reduce the routing overhead of the whole network, and at the same time, low-rate channels can use precious bandwidth resources for business data transmission, improving the utilization rate and network throughput of low-rate channels.

Description

technical field [0001] The present invention relates to the communication field, in particular to a routing method and device in a heterogeneous wireless network. Background technique [0002] Wireless Mesh (mesh) network is a new type of broadband wireless network structure, which inherits the main characteristics of multi-hop and self-organization of Ad Hoc (self-organizing) network, and consists of Mesh (mesh network) backbone network and Mesh access network. The goal of building a Mesh network is to provide a high-capacity, high-speed, reliable and self-organizing distributed network. [0003] A wireless Mesh network can be regarded as a combination of a traditional WLAN (Wireless Local Area Network) network and an Ad Hoc network. It combines the characteristics of both, and at the same time has its own characteristics. Its main features are as follows: [0004] 1) Mesh routers in wireless mesh networks are usually static or slowly moving, and terminal nodes are usual...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/02H04W40/24H04W40/30
CPCH04W40/02H04W40/24H04W40/248H04W40/30H04W24/04
Inventor 王海李智敏董超于卫波
Owner ZTE CORP
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