FEC Decoder Gating Using Predicted Code Block Reliability

The patent applies preliminary action by performing channel quality estimation and decoding success probability prediction before the FEC decoder operates. The receiver estimates channel quality metrics and predicts whether decoding will succeed, then selectively enables or disables the FEC decoder based on this prediction. This preliminary assessment prevents unnecessary decoder operations that would consume power, while ensuring the decoder is activated when needed to maintain decoding reliability.

The patent applies dynamics by making the FEC decoder operation dynamic rather than static. The receiver continuously monitors channel quality metrics and adjusts decoder operation in real-time based on current conditions. When channel quality is good and decoding success probability is high, the decoder may be skipped. When channel quality degrades and decoding success probability drops below a threshold, the decoder is activated. This dynamic adaptation optimizes battery life while maintaining adequate decoding success probability.

The patent applies feedback by using channel quality estimation results to control decoder operation. The receiver estimates channel quality metrics from the received signal, uses these metrics to predict decoding success probability, and feeds this information back to the decoder control logic. This feedback loop enables intelligent decision-making about whether to activate the decoder, preventing waste of power on code blocks with very low decoding success probability while ensuring attempts are made when conditions are favorable.