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AUTOMOTIVE TELEMTRY PROTOCOL

  • US 20130342368A1
  • Filed: 08/30/2013
  • Published: 12/26/2013
  • Est. Priority Date: 10/13/2000
  • Status: Active Grant
First Claim
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1. A vehicle node configured for use in a vehicular communications network which provides for exchange of data between a plurality of vehicle nodes and a plurality of stationary nodes, where each stationary node comprises a computing unit operable to broadcast periodic announcements of services, and to receive identity messages from the vehicle node on at least one common IEEE 802.11 Medium Access Control (MAC) channel, said vehicle node comprising:

  • at least one on-board computing unit which is operable to broadcast identity messages to, and to receive identity messages from, a plurality of neighboring vehicle nodes on at least one roadway, the received identity messages enabling said vehicle node to identify, to locate, and to list the plurality of neighboring vehicle nodes, the at least one on-board computing unit also being operable over a high frequency channelized RF band, compliant with IEEE 802.11 MAC protocol specification for ad-hoc networking, the identity messages being broadcast from said at least one on-board computing unit being broadcast on an assigned channel common to the plurality of neighboring vehicle nodes and at at least one collision avoidance interval of at least several times per second.

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