The technology of this application relates to a V2X communication method and an apparatus. The method includes a first network element obtains UE density information of a first area in which target UE is located, and the first network element sends first information to the target UE based on the UE density information, where the first information is used by the target UE to adjust transmit power of a PC5 interface. The method provided in this application can improve V2X communication quality, and further reduce power consumption of UE. In addition, it can also be avoided that primary responsibility of an accident is transferred to a server, and information received by the UE is determined using global information, so that an error can be reduced.

Provided are methods for semantic annotation of sensor data using unreliable map annotation inputs, which can include training a machine learning model to accept inputs including images representing sensor data for a geographic area and unreliable semantic annotations for the geographic area. The machine learning model can be trained against validated semantic annotations for the geographic area, such that subsequent to training, additional images representing sensor data and additional unreliable semantic annotations can be passed through the neural network to provide predicted semantic annotations for the additional images. Systems and computer program products are also provided.

Provided are methods for semantic annotation of sensor data using unreliable map annotation inputs, which can include training a machine learning model to accept inputs including images representing sensor data for a geographic area and unreliable semantic annotations for the geographic area. The machine learning model can be trained against validated semantic annotations for the geographic area, such that subsequent to training, additional images representing sensor data and additional unreliable semantic annotations can be passed through the neural network to provide predicted semantic annotations for the additional images. Systems and computer program products are also provided.

In various embodiments, a vehicle processing device may receive a vehicle-to-everything (V2X) message from an ITS participant, the message including an ITS participant type indication, determine detector settings based on the ITS participant type for one or more detectors configured to evaluate an aspect of the ITS participant, determine whether information in the V2X message is plausible using the detector settings based on the ITS participant type for the one or more detectors, and perform a security action in response to determining that the information in the V2X message is not plausible.

A platooning system for causing multiple vehicles to travel in a platoon includes: a management device configured to set an order of the vehicles in the platoon; a transmission device mounted on each vehicle and configured to transmit driving information regarding a driving state of the vehicle; a reception device mounted on each vehicle and configured to receive the driving information of at least one of the vehicles; and a control device mounted on each vehicle and configured to control an operation of the vehicle based on the driving information, wherein the management device is configured to arrange the vehicles from a front end to a rear end with respect to a travel direction in an ascending order of driving performances of the vehicles.

A platooning system for causing multiple vehicles to travel in a platoon includes: a management device configured to set an order of the vehicles in the platoon; a transmission device mounted on each vehicle and configured to transmit driving information regarding a driving state of the vehicle; a reception device mounted on each vehicle and configured to receive the driving information of at least one of the vehicles; and a control device mounted on each vehicle and configured to control an operation of the vehicle based on the driving information, wherein the management device is configured to arrange the vehicles from a front end to a rear end with respect to a travel direction in an ascending order of driving performances of the vehicles.

Synchronized work zone traffic management systems and methods are disclosed herein. An example method includes synchronizing, by a first vehicle, communication with a second vehicle over a wireless link, and displaying alternatingly, by the first vehicle, one of two messages on a first external display according to an alternating schema. A first message indicates to drivers to drive slowly and a second message indicates to the drivers to stop. The first message being displayed on the first external display when the second vehicle is displaying the second message on a second external display. The first vehicle displaying the second message on the first external display when the second vehicle is displaying the first message on the second external display. The alternating displaying of the first and second messages being used to control flow of traffic on a one-way street.

Synchronized work zone traffic management systems and methods are disclosed herein. An example method includes synchronizing, by a first vehicle, communication with a second vehicle over a wireless link, and displaying alternatingly, by the first vehicle, one of two messages on a first external display according to an alternating schema. A first message indicates to drivers to drive slowly and a second message indicates to the drivers to stop. The first message being displayed on the first external display when the second vehicle is displaying the second message on a second external display. The first vehicle displaying the second message on the first external display when the second vehicle is displaying the first message on the second external display. The alternating displaying of the first and second messages being used to control flow of traffic on a one-way street.

A method for coordinated beam management in wireless vehicular communication comprises initiating an omnidirectional broadcast transmission by a transmitting vehicle towards a group of receiving vehicles, wherein the transmission is addressed to all receiving vehicles simultaneously; performing a beam steering process by each of the receiving vehicles to identify a directional communication beam pointing from the respective receiving vehicle towards the transmitting vehicle; and communicating data via the initiated omnidirectional broadcast transmission from the transmitting vehicle to the receiving vehicles over a transmission time period, wherein the receiving vehicles maintain their respective directional communication beam over the transmission time period in order to receive the transmitted data via the respective directional communication beam.

A method for coordinated beam management in wireless vehicular communication comprises initiating an omnidirectional broadcast transmission by a transmitting vehicle towards a group of receiving vehicles, wherein the transmission is addressed to all receiving vehicles simultaneously; performing a beam steering process by each of the receiving vehicles to identify a directional communication beam pointing from the respective receiving vehicle towards the transmitting vehicle; and communicating data via the initiated omnidirectional broadcast transmission from the transmitting vehicle to the receiving vehicles over a transmission time period, wherein the receiving vehicles maintain their respective directional communication beam over the transmission time period in order to receive the transmitted data via the respective directional communication beam.