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Data selection method for reducing the decoding computational complexity of a vehicle-to-X communication system, and vehicle-to-X communication system

  • US 9,591,024 B2
  • Filed: 07/04/2012
  • Issued: 03/07/2017
  • Est. Priority Date: 07/05/2011
  • Status: Active Grant
First Claim
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1. A data selection method for reducing the decoding computational complexity of a vehicle-to-X communication system, comprising the steps of:

  • receiving vehicle-to-X messages by an electronic communication unit in communication with an antenna, wherein the vehicle-to-X messages each includes at least one useful data portion and at least one header data portion,transmitting by the electronic communication unit to an electronic weighing unit the at least one header data portion in an uncoded form, wherein the at least one useful data portion in each case is transmitted in an encoded form,processing by the electronic weighing unit the received vehicle-to-X messages with respect to one another, and based on the processing categorizing the received vehicle-to-X messages into at least two categories on the basis of the at least one header data portion,decoding by an electronic encoding unit the at least one useful data portion as a function of the processing,wherein the electronic communication unit, electronic weighing unit, and electronic encoding unit are comprised by at least one electronic computing unit, the at least one electronic computing unit being a processor, andwherein the categorizing of the vehicle-to-X messages by the electronic weighing unit received during operation of a vehicle is based on at least two of the following factors;

    an actual speed of a receiver,a relative speed of the receiver with respect to the transmitter,a distance of the receiver from the transmitter,an expected entry point of the transmitter into a critical zone around the receiver wherein the critical zone has an adaptable extent and shape,a relative direction of travel of the receiver with respect to the transmitter, anda class of road, and wherein the class of road is formed as a function of at least one of a permissible maximum speed, a lane width, a number of lanes, vicinity to localities, and weather conditions.

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