V2X Relay Message Generation for Extended Vehicle Communication Range
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Solution Overview
Problem
Existing vehicle-to-everything (V2X) communication technologies face limitations in transmitting safety messages beyond a certain distance, such as the dedicated short-range communication (DSRC) technique, which restricts the coverage of basic safety messages (BSM), making it difficult to reach remote vehicles effectively.
Innovation Solution
An electronic device equipped with sensors and communication circuits determines a relay message generation condition based on acquired data and generates a relay message when the condition is met, allowing the message to be transmitted to an external vehicle, thereby extending the communication range by relaying the message through intermediate vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If basic safety message (BSM) transmission is used in V2X communication, then safety information can be exchanged between vehicles, but the transmission coverage is limited within a certain distance (300m to 1km)
Solution Approach 1:
The patent introduces intermediate vehicles as relay nodes to forward BSMs beyond the direct transmission range. When a vehicle receives a BSM, it can act as a relay and retransmit the message to other vehicles that are outside the original transmitter's coverage area, effectively extending the communication network's reach while maintaining safety message reliability
Solution Approach 2:
The patent segments the BSM transmission process into multiple hops through different vehicles. Instead of requiring direct long-range transmission, the message is broken down into sequential transmissions through intermediate nodes, allowing the safety information to reach distant vehicles through a chain of relays
2Length of stationary object
If relay message generation is implemented to extend coverage, then messages can reach remote vehicles, but the device complexity increases
Solution Approach 1:
The patent implements relay message generation by creating copies of received BSMs and forwarding them to other vehicles. When a vehicle receives a safety message, it can generate relay copies of that message and transmit them to vehicles beyond the original coverage area, extending communication range through simple message replication rather than complex processing
Solution Approach 2:
The patent enables vehicles to automatically determine whether to act as relays based on their own reception of BSMs. When a vehicle receives a safety message, it autonomously decides whether to relay it based on simple criteria (such as whether the message is within its coverage area), performing the relay function self-service without requiring complex centralized control
Data Source
AI summary
According to various embodiments, an electronic device may include at least one sensor, at least one communication circuit, and a processor electrically connected to the at least one sensor and/or the at least one communication circuit, wherein the processor is configured to determine a relay message generation condition associated with a vehicle based at least on data acquired from the at least one sensor and/or the at least one communication circuit, to generate a relay message based at least on the data acquired from the at least one sensor and/or the at least one communication circuit when the relay message generation condition is satisfied based on the determination result, and to transmit the generated relay message to an external vehicle through the at least one communication circuit.