Object Message Segmentation for Complete V2X Surroundings Models
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Solution Overview
Problem
Existing vehicle-to-everything (V2X) communication systems face challenges in reliably transmitting Collective Perception Messages (CPMs) due to segmentation issues, leading to incomplete surroundings models at the receiver, which can result in accidents, especially when segments are lost during transmission.
Innovation Solution
The method involves segmenting the surrounding region into subregions and generating complete object message segments for each subregion, ensuring each segment fits within a defined data size, thereby providing a complete surroundings model to the receiver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the object message is segmented into multiple segments for transmission, then the message can be transmitted even when the data size exceeds the maximum limit, but the receiver cannot reliably reconstruct the complete surroundings model due to segment loss or incompleteness
Solution Approach 1:
The patent divides the surrounding region into multiple subregions and generates separate complete object message segments for each subregion. Each segment contains all necessary information (geometric description and recognized objects) for its specific subregion, allowing the receiver to reconstruct complete surroundings models even if some segments are lost during transmission.
Solution Approach 2:
The patent performs preliminary segmentation of the surrounding region into subregions before message generation. This ensures that each object message segment is pre-configured to contain complete information for its specific subregion, enabling the receiver to immediately reconstruct complete surroundings models without requiring additional segments or complex completion processes.
2Quantity of substance
If all selected information about the surrounding region is transmitted in a single message, then the complete surroundings information is provided, but the message size exceeds the maximum transmittable data size
Solution Approach 1:
The patent segments the surrounding region into multiple subregions and generates separate object message segments for each subregion. This division allows the total information to be transmitted in smaller, manageable segments that each fit within the maximum data size limit while collectively providing complete surroundings coverage.
Solution Approach 2:
The patent introduces a spatial dimension to message segmentation by dividing the surrounding region into distinct subregions. Each message segment corresponds to a specific spatial subregion, allowing information to be organized and transmitted along the spatial dimension rather than as a single large message.
3Productivity
If objects are filled into message segments in an undefined order or by priority metric, then the message can be generated quickly, but the receiver cannot determine which parts of the surroundings are complete or missing
Solution Approach 1:
The patent segments the surrounding region into distinct subregions with clear geometric boundaries before generating message segments. Each subregion is associated with specific recognized objects, creating a structured organization that allows the receiver to easily determine which parts of the surroundings are covered by received segments and which are missing, without requiring complex priority-based reconstruction.
Data Source
AI summary
A method for providing an object message including selected information about a surrounding region of a participant in a communication network. The method includes: acquiring the selected information about the surrounding region; comparing a calculated or estimated data size of the object message, comprising the acquired information about the surrounding region, with a given maximum data size of the transmittable object message; if the data size of the object message exceeds the given maximum data size, the method includes: segmentation of the surrounding region of the participant into at least a first subregion and a second subregion, generating a first transmittable object message segment, including the selected information about the first subregion, generating a second transmittable object message segment, including the selected information about the second subregion, providing the first transmittable object message segment and the second transmittable object message segment to be sent via the communication network.