Message Aggregation for Vehicle Communication Efficiency
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Solution Overview
Problem
Current source devices transmitting messages one at a time can be inefficient, leading to wasteful use of communication resources and potential delays, as they do not effectively utilize radio resources or properly coordinate the transmission of messages from multiple sources.
Innovation Solution
Implementing a system where source devices categorize and aggregate messages based on transmission cadence and delay tolerance, allowing for combined transmission in a single data frame or TXOP, utilizing techniques like A-MSDU or A-MPDU frame aggregation to optimize communication resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If messages are transmitted one at a time, then transmission simplicity is maintained, but communication resource utilization deteriorates and transmission delays increase
Solution Approach 1:
The patent combines multiple individual message transmissions into a single aggregated transmission unit (A-MPDU). Multiple MPDUs from different sources are merged into one aggregated frame, allowing simultaneous transmission of multiple messages in a single radio resource allocation, thereby improving communication resource utilization while maintaining manageable complexity through standardized aggregation protocols
2Loss of time
If messages are transmitted one at a time, then transmission coordination is simplified, but inter-frame gaps and overheads increase
Solution Approach 1:
Multiple individual frame transmissions are merged into a single aggregated MPDU transmission, eliminating inter-frame gaps between individual messages. The aggregation structure allows multiple messages to be transmitted contiguously within one radio resource allocation, reducing total transmission time and eliminating repeated overhead sequences
Solution Approach 2:
Messages are pre-aggregated into an A-MPDU structure before transmission, organizing multiple MPDUs in advance within a single aggregated frame. This preliminary organization allows the transmission system to send all messages in one coordinated action rather than sequentially, reducing overall transmission delay and eliminating repeated channel access procedures
Data Source
AI summary
In some examples, a source device categorizes a plurality of messages for transmission to a recipient device, the plurality of messages comprising vehicle-related information. Based on the categorizing, the source device identifies selected messages of the plurality of messages to be aggregated. The source device aggregates the selected messages into a single transmission from the source device to the recipient device.