Forward error correction decoding avoidance based on predicted code block reliability

摘要

A method and device for performing forward error (FEC) correction avoidance based upon predicted block code reliability in a communications device is provided. An avoidance unit comprising a metric computation unit and a decision unit generates a reliability metric based upon a received code block. The reliability metric is compared to a reliability threshold, and the forward error correction decoder in the communications device is disabled if the metric is below or equal to the threshold.

主权项

1. A method for performing forward error correction (FEC) avoidance in a receiver of a communications device, the method comprising:
determining a reliability metric value of one or more received code blocks wherein the reliability metric value increases with increasing probability of decoding success and is based on the actual reception of code blocks; determining a code block reliability threshold value; comparing the reliability metric value to the reliability threshold value; and disabling a FEC decoder in the communications device when the reliability metric is below or equal to the reliability threshold wherein the reliability metric is a measure based on the collective statistics of a Signal-to-Interference-plus-Noise Ratio (SINR) of the individual bits in the code block.