V2X Signal Filtering by Received Strength
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Solution Overview
Problem
Vehicle ad hoc networks face challenges in efficiently processing varying data loads, particularly during high-traffic situations, where not all data is relevant to each vehicle, leading to excessive computing effort and potential overload, as existing methods require assembling and evaluating all data packets before filtering.
Innovation Solution
Implementing a filtering method that evaluates data at the transmission signal and data packet level, using a predetermined condition such as minimum signal strength, to discard irrelevant data, with variable settings based on processing load and signal standards, ensuring optimal resource utilization and reducing unnecessary data processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all data packets are assembled and evaluated before filtering, then complete data processing is achieved, but computing effort becomes excessive and system overload occurs
Solution Approach 1:
The patent applies preliminary filtering of data packets based on signal strength before complete assembly and evaluation. By evaluating packets at the transmission signal and data packet level using a predetermined condition (minimum signal strength), the system discards irrelevant data early, avoiding the need to process all packets with high computing power while still maintaining reliable processing of relevant data
Solution Approach 2:
The patent extracts and processes only the most relevant data packets that meet the signal strength criterion, separating them from the bulk of irrelevant data. This selective extraction allows the system to focus computing resources on packets that are likely to contain relevant information, reducing overall computing effort while maintaining processing reliability
2Productivity
If maximum computing power is allocated for processing, then all data can be handled, but resource efficiency decreases during low-load situations
Solution Approach 1:
The patent implements dynamic filtering criteria that adapt to current processing load conditions. The predetermined condition for filtering data packets (signal strength threshold) can be adjusted based on system state, allowing the system to optimize between processing capacity and resource efficiency. During low-load situations, the filter can be more selective, reducing processing of marginally relevant packets and thus reducing energy consumption while maintaining adequate productivity
3Reliability
If filtering is performed only after data assembly, then all data is processed, but processing time increases due to unnecessary data handling
Solution Approach 1:
The patent performs preliminary filtering at the data packet level before complete data assembly. By applying the signal strength criterion early in the processing chain, the system eliminates irrelevant packets before they consume assembly and evaluation time, significantly reducing total processing time while maintaining reliability through subsequent evaluation of the filtered subset
Data Source
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AI summary
The invention relates to a method for filtering a transmission signal (18) transmitted in a vehicular ad hoc network (1), said signal carrying at least position data (12) of participants (3, 5, 8) in data packets (43). The method comprises the following steps: receiving (19) the transmission signal (18); filtering (45, 47, 48) the data packets (43) from the transmission signal (18) based on a receive filter (45) having a predetermined receive filter specification for demodulating the data packets (45) from the transmission signal (18), and an additional predetermined condition (54, 55); and distributing the filtered data packets (50) to a data processing unit (13, 46) superordinate to the receive filter (45).