DEMODULATION TECHNIQUE

摘要

A technique for assessing the reliability of bits received by a modulation symbol on a channel is provided. A providing circuit provides an input dataset including a plurality of input values. The input values correspond to different transmit hypotheses according to a modulation alphabet used for encoding the bits in the symbol. A computing circuit performs a first computing step and a second computing step. In the first computing step, a first intermediary dataset is computed by combining the input values of the input dataset according to a first combination scheme. In the second computing step, a second intermediary dataset is computed by combining the input values of the input dataset according to a second combination scheme. The second combination scheme is different from the first combination scheme. An assessing circuit assesses the reliability of the bits based on the first intermediary dataset and the second intermediary dataset.

主权项

1. A method of assessing the reliability of bits received by means of a modulation symbol on a channel, the method comprising the following steps performed at a receiving side of the channel:
providing an input dataset including a plurality of input values corresponding to different transmit hypotheses according to a modulation alphabet used for encoding the bits in the symbol; a first computing step of computing a first intermediary dataset by combining the input values of the input dataset according to a first combination scheme; a second computing step of computing a second intermediary dataset by combining the input values of the input dataset according to a second combination scheme different from the first combination scheme; and assessing the reliability of the bits based on the first intermediary dataset and the second intermediary dataset.