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Method for operating a wireless mesh data network with multiple nodes

A network node, data network technology, applied in wireless communication, data exchange network, digital transmission system, etc., can solve the problems of loop or data loop, data frame error, unable to prevent loop and so on

Inactive Publication Date: 2010-03-31
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the case of such a wireless mesh data network, there is the problem that individual data frames may be mis-sent on the path between the source node and the destination node, thereby creating loops or data loops
However, the predecessor list used in the context of AODV thus does not prevent the emergence of loops

Method used

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  • Method for operating a wireless mesh data network with multiple nodes
  • Method for operating a wireless mesh data network with multiple nodes
  • Method for operating a wireless mesh data network with multiple nodes

Examples

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Embodiment Construction

[0049] figure 1 A mesh data network with a plurality of network nodes MN is shown as an example. The network nodes MN are connected to each other for data exchange in part via communication links KS. The communication section KS is designed wirelessly. Each network node MN is assigned a unique address by means of which data frames can be transmitted from the source node to the destination node. exist figure 1 In , the addresses of the network nodes MN are indicated with the reference symbols S, B, A, C, D, F and G. The transmission of data frames from a network node MN to an adjacent network node MN via a communication link KS is indicated by arrows. The data frame is transmitted from the source node of the data network to the target node of the data network via one or more intermediate nodes-wherein the source node, the target node and the intermediate node are composed of network nodes of the data network-by hop-by-hop (hop-by-hop ), that is, from network node to networ...

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Abstract

The invention relates to a method for operating a wireless mesh data network with multiple nodes (A, B, C, D, F, G, S), wherein data frames are transmitted from a source node (SN) via one or more intermediate nodes (IN) to a destination node (DN), wherein the source node (SN), the one or more intermediate nodes (IN), and the destination node (DN) constitute network nodes (MN) of the data network,wherein during transmission of a data frame, at least some of the network nodes (MN) which receive the data frame, using a precursor list for the destination nodes (DN) which is assigned to the destination nodes (DN) of the data frame, check whether the network node (MN) sending the data frame is in the precursor list, wherein in the case of a positive result, the data frame is transmitted to a further network node (MN), and in the case of a negative result, the data frame is thrown out or processed by an error recovery routine.

Description

technical field [0001] The invention relates to a method for operating a wireless mesh data network with a plurality of network nodes, wherein data frames are transmitted from a source node to a destination node via one or more intermediate nodes, wherein the source node, the one or more intermediate nodes and the target node are network nodes of the data network. Background technique [0002] In the case of mesh data networks, the transmission of data frames between source node and destination node can in principle take place via different routes. A route is understood to mean a plurality of network nodes which are arranged adjacent to one another and which have data connections at their ends to a source node and a destination node. In order to make the transmission of data frames from the source node to the target node non-accidental, the source node sends (so-called broadcast) so-called route (Weg) query messages (so-called route request; routing request) to all adjacent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L45/02H04L69/40
CPCH04L45/26H04L45/00H04W40/24H04W40/28H04W40/248H04W40/246
Inventor M·巴尔
Owner SIEMENS AG