METHOD FOR CONDUCTING VEHICLE-TO-X COMMUNICATION AND VEHICLE-TO-X COMMUNICATION MODULE
A vehicle-to-X communication module may execute a method for conducting vehicle-to-X communication comprising at least the step of determining a reception quality for vehicle-to-X messages. Different embodiments may be used for this purpose.
1 . A method for conducting vehicle-to-X communication, the method comprising:
determining a reception quality for vehicle-to-X messages.
2 . The method as claimed in claim 1 , further comprising:
determining reliability based on reception quality.
3 . The method as claimed in claim 1 ,
wherein pilot tones and messages are received, and
wherein the reception quality is determined based at least in part on a ratio between number of received pilot tones and number of received messages.
4 . The method as claimed in claim 3 , wherein at least one of:
pilot tones have 6 to 10 symbols,
messages have at least five times as many symbols as pilot tones, and messages have at least 80 symbols.
5 . The method as claimed in claim 3 ,
wherein only fully received messages are taken into account in determining the reception quality.
6 . The method as claimed in claim 1 ,
wherein a packet error rate is determined, and
wherein the reception quality is determined at least based on the packet error rate.
7 . The method as claimed in claim 6 ,
wherein the packet error rate is calculated as a ratio of a number of received packets in which a checksum does not correspond to a payload, to a number of received packets in which a checksum corresponds to the payload.
8 . The method as claimed in claim 1 ,
wherein a signal-to-noise ratio is determined, and
wherein the reception quality is determined at least based on the signal-to-noise ratio.
9 . The method as claimed in claim 8 ,
wherein the signal-to-noise ratio is calculated as a ratio of signal strength immediately after a pilot tone within a message to signal strength of noise outside of messages and pilot tones.
10 . The method as claimed in claim 1 ,
wherein the reception quality is determined at least in part based on quality data received from a central server.
11 . The method as claimed in claim 10 ,
wherein the quality data is map-based.
12 . The method as claimed in claim 1 ,
wherein the reception quality is determined based at least in part on quality data received from a plurality of other vehicles.
13 . The method as claimed in claim 1 ,
wherein the reception quality is determined at least based on an on-board map.
14 . The method as claimed in claim 13 ,
wherein the on-board map contains topographic data, data on objects that obstruct radio propagation, and/or data regarding reflection of radio waves at objects.
15 . A vehicle-to-X communication module configured to execute the method as claimed in claim 1 .
16 . The module as claimed in claim 15 , wherein the method further comprises determining reliability based on reception quality.
17 . The module as claimed in claim 15 ,
wherein a packet error rate is determined, and
wherein the reception quality is determined at least based on the packet error rate.
18 . The module as claimed in claim 15 ,
wherein pilot tones and messages are received, and
wherein the reception quality is determined based at least in part on a ratio between number of received pilot tones and number of received messages.
19 . The module as claimed in claim 18 , wherein at least one of:
pilot tones have 6 to 10 symbols,
messages have at least five times as many symbols as pilot tones, and messages have at least 80 symbols.
20 . The module as claimed in claim 18 ,
wherein only fully received messages are taken into account in determining the reception quality.