Proximity Traffic Control via Direct Discovery Messages
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Solution Overview
Problem
Conventional traffic control systems rely on outdated or unreliable map data and require additional computational resources for traffic information extraction, which can be affected by environmental conditions, and they do not efficiently manage cellular data traffic.
Innovation Solution
A traffic control system utilizing proximity-enabled user equipment that transmits discovery messages with proximity service application identifiers, allowing direct communication between user equipment, reducing resource utilization and environmental influence, and minimizing cellular data traffic through a robust and resource-efficient mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional navigation systems use GPS and map databases to provide traffic information, then route guidance is available, but the map data may be outdated or unreliable
Solution Approach 1:
Vehicles equipped with proximity-enabled user equipment autonomously generate and broadcast traffic information through discovery messages, eliminating dependence on centralized map databases. Each vehicle serves itself and others by contributing real-time traffic data, ensuring continuous currency without requiring external updates.
Solution Approach 2:
The system implements continuous feedback loops where vehicles receive traffic information from discovery messages, process it through filtering units, and relay updated information forward. This creates a dynamic feedback mechanism that continuously refreshes traffic data across the network, preventing information staleness.
2Loss of information
If driver assistance systems process camera images to extract traffic information, then traffic sign recognition is achieved, but additional computational resources are required
Solution Approach 1:
The patent replaces the mechanical/computational system of camera image processing with an electromagnetic communication system. Instead of using cameras and computational algorithms to extract traffic information, vehicles receive pre-extracted traffic information directly through discovery messages, eliminating the need for onboard image processing hardware and software.
Solution Approach 2:
The discovery message acts as an intermediary that carries traffic information between vehicles and receiving units. Rather than each vehicle independently processing images to extract information, the intermediary message format standardizes and transports the extracted information, reducing individual computational burdens.
3Reliability
If camera-based traffic information extraction is used, then real-time traffic data is obtained, but the captured images depend strongly on environmental conditions
Solution Approach 1:
The patent replaces the optical system (cameras) that is vulnerable to environmental factors with an electromagnetic communication system (discovery messages). Traffic information is transmitted digitally through radio frequency channels that are not affected by fog, rain, or other environmental conditions, ensuring reliable information delivery in all weather.
4Loss of information
If conventional traffic control systems use centralized communication through cellular networks, then traffic information can be transmitted, but data traffic in cellular networks increases
Solution Approach 1:
The patent extracts traffic information transmission from the centralized cellular network infrastructure and relocates it to direct peer-to-peer communication between vehicles. By taking out the dependency on cellular data networks for this specific function, the system reduces cellular data traffic volume while maintaining information transmission capability.
Solution Approach 2:
The discovery message serves as an intermediary that enables direct communication between vehicles without requiring cellular network infrastructure. This intermediary mechanism allows traffic information to be exchanged locally through proximity-based communication, eliminating the need for cellular data transmission.
5Productivity
If proximity service application identifiers with traffic labels are used in discovery messages, then hierarchical traffic information is structured, but message complexity increases
Solution Approach 1:
The patent segments traffic information into hierarchical levels using traffic labels within discovery messages. By dividing complex traffic data into structured segments (different traffic information levels), the system organizes information efficiently while maintaining manageable message structures that can be processed in a hierarchical manner.
Data Source
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AI summary
A traffic control system (TCS) is provided comprising at least one traffic control unit, TCU, (9) equipped with a proximity enabled traffic user equipment, PETUE, (1) and adapted to control traffic of mobile entities wherein the proximity enabled traffic user equipment, PETUE, (1) of said traffic control unit, TCU, (9) is configured to transmit traffic information by sending at least one discovery message, DM, directly via a user equipment to user equipment link to at least one other proximity enabled traffic user equipment, PETUE, of a mobile entity, wherein said discovery message, DM, includes a proximity service, ProSe, application identifier comprising a string of traffic labels, TLs, representing hierarchical traffic information levels.