Vehicular Radar Interference Management Using Basic Safety Messages

A system comprising:

• an onboard vehicle computer system of an ego vehicle that is Dedicated Short Range Communication-enabled (“DSRC-enabled”) and that includes a non-transitory memory storing computer code which, when executed by the onboard vehicle computer system causes the onboard vehicle computer system to:
• observe, for a time frame, an order in which Basic Safety Messages (“BSMs”) are received by a DSRC radio of the ego vehicle and broadcasted by the DSRC radio of the ego vehicle, wherein the BSMs are transmitted by one or more other DSRC-enabled vehicles that share a protocol with the ego vehicle so that the one or more other DSRC-enabled vehicles and the ego vehicle obey the protocol and wherein the ego vehicle and the one or more other DSRC-enabled vehicles each include an onboard radar system;
• build a data structure that includes digital data that describes the order in which the BSMs were received and transmitted by the DSRC radio during the time frame;
• and
• assign radar parameters to the one or more other DSRC-enabled vehicles and the ego vehicle based on the order described by the digital data included in the data structure, wherein the protocol describes how the order is determined and the radar parameters are assigned so that the ego vehicle and the one or more other DSRC-enabled vehicles assign same radar parameters without transmitting wireless messages to confirm the digital data with each other.

A non-transitory memory encoded with a computer program, the computer program comprising instructions that, when executed by one or more processors, cause the one or more processors to perform operations comprising:

• observing, for a time frame, an order in which Basic Safety Messages (“BSMs”) are received by a Dedicated Short Range Communication (“DSRC”) radio of an ego vehicle and broadcasted by the DSRC radio of the ego vehicle, wherein the BSMs are transmitted by one or more other DSRC-enabled vehicles that share a protocol with the ego vehicle so that the one or more other DSRC-enabled vehicles and the ego vehicle obey the protocol and wherein the ego vehicle and the one or more other DSRC-enabled vehicles each include an onboard radar system;
• building a data structure that includes digital data that describes the order in which the BSMs were received and transmitted by the DSRC radio during the time frame;
• and
• assigning radar parameters to the one or more other DSRC-enabled vehicles and the ego vehicle based on the order described by the digital data included in the data structure, wherein the protocol describes how the order is determined and the radar parameters are assigned so that the ego vehicle and the one or more other DSRC-enabled vehicles assign same radar parameters without transmitting wireless messages to confirm the digital data with each other.