Method and network node for routing data packets in communication networks

摘要

A method routes data packets especially in wireless communication network formed by a plurality of network nodes. In order to transmit data packets from a first network node acting as a data packet source to a second network node acting as a data packet sink according to said method, the data packets are transmitted with the help of at least one additional communication network node that is dissociated from the source node, a first network message is transmitted from the source node at least to the additional network node so as to be successively forwarded to each additional network node until the additional network node corresponds to the sink node, the respective additional network node supplies routing data based on the first message in such a way that first data on a next network node on the way to the source node and the value of a first validity period in the actual additional network node is temporarily stored, and the value of the respective validity period is stored in such a way that all first data remains stored at least until a second network message which is sent by the sink node and confirms the first network message has been received by the source node.

主权项

1. A method of routing data packets in a wireless communication network formed from a plurality of network nodes, comprising:
transmitting data packets from a first network node acting as a source of the data packets to a second network node acting as a sink of the data packets with assistance of at least one further network node of the wireless communication network, the at least one further network node being disjoint with respect to the source node; transmitting a first network message from the source node at least to one of the further network nodes such that the first network message is forwarded successively to each further network node until the further network node corresponds to the sink node, the first network message containing a value of a first validity period assigned to the first network message; temporarily storing a first item of information about a next network node on a path to the source node and the value of the first validity period in a current further network node, the current further network node having made route information available based on the first network message such that the first item of information and the value are able to be temporarily stored, wherein the value of the first validity period is stored such that all first items of information remain stored at least until a second network message sent by the sink node and acknowledging the first network message has been received by the source node, the first validity period being a lifetime of a route from the sink node to the source node.