NDN Interest Request Filtering by Return Link Quality

The patent applies preliminary action by evaluating transmission path quality before forwarding interest requests. The receiving node assesses whether the return path meets minimum quality thresholds (such as signal strength, bandwidth, or latency requirements) before allowing content retrieval. This preventive evaluation stops low-quality transmissions before they consume network resources, thereby reducing network flooding while preserving accessibility through quality paths.

The patent implements parameter changes by introducing quality threshold parameters that define minimum acceptable transmission characteristics. Instead of complex quality optimization, the system uses simple parameter comparisons (e.g., signal strength above threshold, bandwidth above minimum) to determine whether to forward interest requests. This approach ensures reliable content transfer through quality-controlled paths while keeping node processing complexity low through straightforward parameter evaluation.

The patent applies preliminary action by pre-establishing quality thresholds and evaluation criteria for transmission paths. When an interest request arrives, the node performs a quick parameter comparison against these pre-defined thresholds rather than conducting extensive quality analysis. This preliminary quality check ensures reliable transmissions while minimizing additional processing time through efficient threshold-based decision making.