METHOD FOR TRANSMITTING DATA PACKETS IN A TIME-SLOT-BASED MANNER IN A WIRELESS MESHED NETWORK

摘要

The invention relates to a method for transmitting data packets in a time-slot-based manner in a wireless meshed network having a multiplicity of nodes (1, 2,..., 5). In the method according to the invention, one or more graphs (G, G´) with respective graph identities (GI, GI´) are formed, in a step a), for data packets to be transmitted in the network. In this case, the graphs (G, G´) specify possible transmission paths for data packets to a destination node via wireless data links (L1, L2,..., L7) between adjacent nodes, wherein each data packet contains a corresponding graph identity (GI, GI´) on the basis of the destination node for the packet. In a step b) of the method, one or more time slots are reserved in one or more radio channels in cyclically repeated time frames (F), each of which time slots has an associated node (1, 2,..., 5) with an associated data link (L1, L2,..., L7) between said node and another node. In a step c), when or before a time slot (S0, S1,..., S19) occurs, the node (1, 2,..., 5) associated with the time slot looks for a data packet which should be transmitted by said node and the graph identity (GI, GI´) of which corresponds to a graph (G, G´) comprising the data link (L1, L2,..., L7) associated with the node. In this case, the method is distinguished by the fact that the data links (L1, L2,..., L7) associated with nodes (1, 2,..., 5) at least partially each have one or more associated graph identities (GI, GI´) and data transmission takes place in the corresponding time slot only when a data packet found in step c) contains a graph identity corresponding to a graph identity (GI, GI´) of the associated data link (L1, L2,..., L7).