(EN) The invention discloses a decoding method which can be applied to multiple scenes such as metropolitan area, a backbone network, data center interconnection and the like to meet the requirements of optical transmission. The method comprises the following steps: obtaining a syndrome corresponding to each code word in a plurality of code words; grouping the obtained syndromes, and performing priority ranking in each group of syndromes; and selecting the syndromes for decoding according to the priority ranking result of each group of syndromes. According to the decoding method, the same decoding processing is not carried out on each code word, so that the problem that the same number of times of decoding needs to be carried out no matter whether the code word is correct or not in a traditional static decoding scheme is avoided, on-demand decoding is realized, and the demand and power consumption of decoding resources are reduced.
(ZH) 本申请公开了一种译码方法，可应用于城域、骨干网、数据中心互连等多个场景，满足光传输的需求。所述方法包括：获得多个码字中每个码字对应的校正子；对得到的所述校正子进行分组，在每一组校正子中进行优先级排序；根据所述每一组校正子的优先级排序结果，挑选校正子进行译码。由于本译码方法并不对每一个码字都进行相同的译码处理，避免了传统静态译码方案中，无论码字本身是否正确均需要进行同等次数译码的问题，实现按需译码，降低译码资源的需求和功耗。
