| Patent application number | Description | Published |
|---|
| 20100180113 | METHOD FOR MISBEHAVIOUR DETECTION IN SECURE WIRELESS MESH NETWORKS - In a method for secure data transmission in a wireless mesh network, a sending node sends at least one packet to at least one forwarding node which receives the packet from the sending node and forwards the packet to one or more receiving nodes. A destination node receives the packet. A challenge is transmitted from the sending node to the forwarding node causing the forwarding node to reply both to the sending and the receiving node with a response which has transformed information about one or more of the packet/packets. The response is processed to find out whether the forwarding node is misbehaving or not by verifying whether the transformed information is equal to an information which can be or has been derived from the requested packet/packets, wherein the processing is carried out both by the sending node and the receiving node. | 07-15-2010 |
| 20100195535 | Methods, Networks and Network Nodes for Selecting a Route - The invention relates to methods, networks and network nodes for setting up a route in a packet-switched network comprising network nodes which are connected to one another for data engineering purposes, where the route connects a starting node to a destination node through intermediate nodes. The route is set up with a distance correlation to a reference route which has already been set up in the network. | 08-05-2010 |
| 20100260153 | METHOD FOR DATA TRANSMISSION IN A MESH MODE OF A WIRELESS COMMUNICATION NETWORK - In a method for data transmission in a mesh mode of a wireless communication network, which enables a decentralized transmission of data packets within data streams via communication links from one node to another node, data streams are classified in several service classes specifying quality requirements for data streams. Bandwidth reservations are performed between nodes of a communication link, each bandwidth reservation being dependent on the service class of the data stream to be transmitted via the communication link and comprising the exchange of control messages for reserving time slots for transmitting the data stream of the service class in subsequent data time frames via the communication link. The transmission of data streams is scheduled dependent on the service classes. The method is particularly used in the mesh mode of the standard IEEE 802.16 and enables a seamless coexistence of the point-to-multipoint mode and the mesh mode of the standard. | 10-14-2010 |
| 20110206020 | Method, network nodes and system for broadcast transmission of data - Disclosed are methods for broadcast transmission of data in frames having multiple time slots, from one transmitting node to multiple receiving nodes in a network, having the following steps: The sending out of at least one broadcast request message from the transmitter node to the receiver nodes, wherein the time slots available to the transmitter node for data transmission are indicated; the transmitting back of time-slot granting messages from the receiving nodes, wherein at least one of the time-slots available to the respective receiver node for data transmission is in each case indicated jointly with one at the transmitter node; the sending out of a confirmation message from the transmitter node to the neighboring receiving nodes, wherein all of the receiving nodes are indicated in the time-slot granting messages jointly with the time-slots available at the transmitter node; the performing of a broadcast transmission of the data from the transmitter node to the receiver nodes in the jointly available time slots. | 08-25-2011 |
| 20120155365 | Method, Network Nodes and System for Broadcast Transmission of Data - A method for transmission of data requires a transmitting node sending a request message identifying at least one time slot that is available for the transmitting node to transmit a data transmission to a plurality of receiving nodes, a first receiving node transmitting a first time slot grant message in response to the request message, a second receiving node transmitting a second time slot grant message in response to the request message, the transmitting node receiving the first and second time slot grant messages, the transmitting node evaluating the first and second time slot grant messages to determine at least one available time slot for transmitting, the transmitting node transmitting at least one confirmation message to the first and second receiving nodes, and the transmitting node transmitting the data transmission in the at least one available time slot identified in the at least one confirmation message. | 06-21-2012 |
