Channel allocation method and system in a wireless mesh network

A wireless mesh and channel allocation technology, applied in the field of communication, can solve the problems of heavy MR load, affecting user service experience, unbalanced traffic, etc., so as to solve the problem of traffic balance and ensure the effect of user service experience.

Active Publication Date: 2018-06-01
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The existing wireless Mesh network channel allocation schemes often only consider reducing link interference itself. The main core operation is to divide different orthogonal channel clusters and adjust the channels on different MRs according to the congestion degree of network transmission. channel interference and traffic changes; in addition, traffic changes may also lead to unbalanced traffic, resulting in excessive load on some MRs and reduced processing capacity, which in turn affects the user's business experience

Method used

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  • Channel allocation method and system in a wireless mesh network
  • Channel allocation method and system in a wireless mesh network

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Embodiment 1

[0035] Embodiment 1. A channel allocation method in a wireless mesh network, such as figure 1 shown, including:

[0036] S110, when the MC inter-cluster switching occurs in the Mesh network, record the MR label before and after the inter-cluster switching, and record the number of times that the inter-cluster switching occurs in each cluster and each MR;

[0037] S120. According to the records, periodically determine the MR whose number of inter-cluster switching exceeds the second predetermined threshold among the clusters whose number of inter-cluster switching exceeds the first predetermined threshold in this period as the object to be adjusted;

[0038] S130. For each MR to be adjusted, respectively perform the following operations: filter out inter-cluster handovers that use the MR to be adjusted as the switching destination MR within the current period;

[0039] S140. For each selected inter-cluster handover, determine whether the current traffic of the handover source ...

Embodiment 2

[0064] Embodiment 2, a channel allocation device in a wireless mesh Mesh network, comprising:

[0065] Recording module, for when mobile client MC switches between clusters in Mesh network, record the label of the mesh router MR before and after the switch between clusters, and record the number of times that clusters and each MR switch between clusters;

[0066] The determining module is configured to periodically determine, according to the records, among the clusters whose number of inter-cluster switching exceeds a first predetermined threshold in this period, the MR whose number of inter-cluster switching exceeds a second predetermined threshold is determined as an object to be adjusted;

[0067] The screening module is configured to perform the following operations on each of the MRs to be adjusted: to filter out inter-cluster handovers that use the MR to be adjusted as the handover destination MR within the current period;

[0068] The adjustment module is used to deter...

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Abstract

The present invention provides a channel allocation method and device in a wireless mesh Mesh network; the method includes: when an inter-cluster handover occurs in an MC, record the labels of the MRs before and after the inter-cluster handover, and record the inter-cluster handover of each cluster and each MR The number of times; among the clusters whose inter-cluster switching times exceed the first predetermined threshold in this period, the MRs whose inter-cluster switching times exceed the second predetermined threshold are determined as objects to be adjusted; for each MR that is an object to be adjusted, filter Inter-cluster handover using it as the handover destination MR within this period; for each selected inter-cluster handover, judge whether the current traffic of the handover source MR is greater than the handover destination MR, and if so, switch the data transmission channel of the handover destination MR Adjust to the data transmission channel of the handover source MR, and adjust the handover destination MR to the cluster where the handover source MR is located. The invention can realize the dynamic flow balance of MR in the Mesh network.

Description

technical field [0001] The present invention relates to the communication field, in particular to a channel allocation method and system in a wireless mesh network. Background technique [0002] Wireless channel interference is one of the basic characteristics of Mesh (mesh) network based on wireless transmission technology. Due to the interference between links, it will bring a large delay to the path selection and transmission of the wireless network, and the throughput of the entire network will also decrease. will be greatly reduced. Therefore, the channel allocation (CA) process in a typical WMN (Wireless Mesh Network, wireless mesh network) often sets its topology into different clusters, and adopts orthogonal channels between adjacent clusters to minimize the number of clusters. Interference between wireless channels. [0003] On the other hand, the mobile client MC (Mobile Client) will often switch between different MRs (Mesh Routers, mesh routers) in the wireless ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04
CPCH04W72/044H04W28/082
Inventor 房秉毅王志军
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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