V2X Safety Messaging Through Uu Network Relays Beyond Direct Range
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Solution Overview
Problem
Existing V2X communication technologies, such as IEEE 802.11p based DSRC and LTE C-V2X sidelink PC5, have a limited range, preventing effective information exchange between vehicles beyond approximately 1 km, which is inadequate for vehicles traveling at high speeds or with obstructions, leading to potential safety hazards.
Innovation Solution
Utilizing a network device, such as a multi-access edge computing (MEC) device, to relay vehicular messages through a wide area network (Uu) interface, enabling long-range communication by determining recipient vehicles and transmitting messages via a base station or gNodeB, thereby extending the communication range beyond 1 km.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If direct V2X communication is used between vehicles, then communication simplicity is maintained, but communication range is limited to approximately 1 km
Solution Approach 1:
The patent introduces a network device (such as a base station or gNodeB) as an intermediary to relay V2X messages between vehicles. This mediator enables vehicles to communicate beyond the direct 1 km range by forwarding messages through the network infrastructure, thus extending communication range without requiring direct peer-to-peer connectivity.
Solution Approach 2:
The patent transitions from direct peer-to-peer communication to communication through a network dimension. By utilizing the cellular network infrastructure (Uu interface), the system adds a network layer that enables longer-range communication while managing the complexity through standardized network protocols.
2Area of stationary object
If V2X messages are broadcast to all vehicles, then message delivery coverage is maximized, but network bandwidth consumption increases
Solution Approach 1:
The patent applies selective messaging by determining recipient vehicles based on their characteristics and location. Instead of broadcasting to all vehicles, the system identifies and transmits messages only to specific recipient vehicles that need the information, thereby reducing unnecessary bandwidth consumption while maintaining effective coverage.
Solution Approach 2:
The system uses partial action by sending messages only to the necessary recipient vehicles rather than all vehicles in the network. This selective approach reduces excessive bandwidth consumption while ensuring that all relevant vehicles receive the necessary information.
3Loss of information
If vehicles transmit messages continuously, then information availability is maximized, but network load increases
Solution Approach 1:
The patent implements periodic message transmission instead of continuous transmission. Vehicles transmit messages at scheduled intervals, and the network device processes and forwards these periodic messages to recipient vehicles. This approach maintains information availability while significantly reducing network load and processing capacity requirements.
Data Source
AI summary
Systems and techniques are described for providing optimized vehicle-to-everything (V2X) safety messages over a wide area network (Uu) interface. For example, method for wireless communications may include receiving, by a network device, one or more first messages from one or more vehicles. Each of the first message(s) includes vehicle information associated with a respective vehicle of the vehicle(s). The method may include determining, at the network device, one or more recipient vehicles for one or more second messages based on at least a portion of the vehicle information from the first message(s) and characteristics associated with a respective recipient vehicle of the recipient vehicle(s). The method may include transmitting, at the network device, the second message(s) to the recipient vehicle(s).