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Data transmission method, node and gateway

A data transmission method and node technology, applied in the field of mesh networks, can solve problems such as end-to-end throughput constraints, transmission bottlenecks at the gateway and/or wireless side, etc., and achieve the goal of improving end-to-end throughput and eliminating network bottlenecks. Effect

Inactive Publication Date: 2011-09-21
HUAWEI TECH CO LTD
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  • Description
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  • Application Information

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Problems solved by technology

[0006] To sum up, there is no multi-path routing mechanism under the multi-homing network in the prior art, and the existing routing mechanism will cause the transmission bottleneck at the gateway and / or the wireless side, and cannot make full use of the network capacity. End-to-end throughput is constrained by network bottlenecks

Method used

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  • Data transmission method, node and gateway
  • Data transmission method, node and gateway
  • Data transmission method, node and gateway

Examples

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Embodiment Construction

[0038] In the embodiment of the present invention, in order to eliminate the network bottleneck and increase the end-to-end throughput supported by the multi-homing Mesh network, multiple paths that can be transmitted in parallel are selected for each data source node that requires a routing path. The contribution of path selection to end-to-end throughput can eliminate network bottlenecks and improve the end-to-end throughput supported by the network.

[0039] The data transmission method provided by the embodiment of the present invention at least includes:

[0040] The data source node broadcasts a route creation request RREQ message on the selected radio frequency;

[0041] The data source node receives one or more gateways, creates a response RREP message according to the route returned by the received RREQ message, and obtains the path from the corresponding gateway to the data source node carried in the received RREP message; Path selection based on the downlink path capacity...

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Abstract

The implement of the invention discloses a data transmission method, which comprises the following steps: broadcasting a route creating request RREQ message on a selected radio frequency by a data source node, receiving one or more than one geteway by the data source node, obtaining a path which is carried in the received RREP between a corresponding gataway and the data source node according to a received route creating response RREP message which is returned by the RREQ massage, selecting the path according to the downlink path capacity of each of the obtained paths, and then carrying out the data transmission through the selected path. Furthermore, the implement of the invention simultaneously discloses two kinds of nodes and one kind of the gataway, with the technical proposal disclosed by the implement of the invention, the network bottleneck can be eliminated, and the end-to-end throughput supported by the network can be improved.

Description

Technical field [0001] The present invention relates to mesh (Mesh) network technology, and particularly relates to data transmission methods, nodes and gateways. Background technique [0002] Mesh network is a wireless network that supports multi-hop transmission and can have infrastructure. There are three ways for nodes to access the network in the Mesh network: [0003] One way is: a single-path routing mechanism under a single-homing network. A single-homing network means that each node in the network belongs to a gateway, and a single-path routing mechanism means that there is only one path from a data source node to a destination gateway. When a node accesses the network through this routing mechanism, once the gateway device and path corresponding to the node fails, the node will not be able to access the network, or if the path corresponding to the node is in poor condition, it will also cause the node to access the network Difficulty, that is, this approach is prone to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/66H04L12/701
Inventor 周元张炜
Owner HUAWEI TECH CO LTD
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