Nec Europe Ltd.

Nec Corporation

Universidad Carlos III De Madrid

Wenhui Zhang

Long Le

Andreas Festag

Roberto Baldessari

Damiano Scanferla

Maria Calderon Pastor

Carlos Jesús Bernardos Cano

A method for coordination of wireless transceivers of a network node, in particular for application in communication nodes of a vehicular network, wherein the network node is equipped with one or more wireless transceivers that are capable of simultaneously generating and/or receiving electromagnetic signals on different electromagnetic channels, the electromagnetic signals being potentially able to interfere with each other, is characterized in the steps of, for each pending packet transmission on a particular of the electromagnetic channels, checking the presence of ongoing and/or scheduled activity on one or more of the other of the electromagnetic channels, and deferring the pending packet transmission in case ongoing and/or scheduled activity is detected on one or more of the other of the electromagnetic channels, at least until the detected ongoing and/or scheduled activity on one or more of the other of the electromagnetic channels is completed. Furthermore, a corresponding network node is disclosed.

Method for coordination of wireless transceivers of a network node and network node

A method for performing communication in a self-organized wireless network, in particular a vehicular network, preferably based on the IEEE 802.11 MAC protocol, wherein the network includes a plurality of network nodes each being equipped with a communication system, wherein the communication systems generate periodic messages that are transmitted via a dedicated wireless communication channel, wherein each of the communication systems employs specific transmission parameters&#x2014;message interval and transmit power&#x2014;for transmitting the periodic messages, is characterized in that a reliability threshold for a maximum admissible load of the communication channel is defined, and that each network node, taking into consideration information on network nodes in its surrounding, establishes a relation between the message interval and the transmit power&#x2014;interval-power-relation&#x2014;such that the reliability threshold is not exceeded, wherein each network node applies its established interval-power-relation to adjust transmit power and/or message interval of its outgoing periodic messages.

Method for performing communication in a self-organized wireless network

A method for enabling multi-channel signaling in a communication network, including a multitude of communication nodes, wherein the communication among the communication nodes is performed by sending and receiving messages on communication channels including a control channel and at least one service channel, is characterized in that communication nodes embed information related to communication channel usage in messages sent on one of the communication channels, in particular the control channel, wherein the information indicates to others of the communication nodes a communication channel, in particular a service channel, intended to be employed for a specific service and/or application by the communication node having sent the respective message, and wherein communication nodes that receive a message including information related to communication channel usage forward the information by embedding the information in any of their own messages to be sent on a communication channel, in particular on the control channel.

Method for enabling multi-channel signaling in a communication network

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Heidelberg, Germany

Wenhui Zhang