US 12,294,458 B2
Data processing method and device in passive optical network system
Xuming Wu, Wuhan (CN); Xu Wang, Wuhan (CN); and Dekun Liu, Wuhan (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Mar. 29, 2023, as Appl. No. 18/192,121.
Application 18/192,121 is a continuation of application No. PCT/CN2021/119755, filed on Sep. 23, 2021.
Claims priority of application No. 202011063398.5 (CN), filed on Sep. 30, 2020.
Prior Publication US 2023/0246741 A1, Aug. 3, 2023
Int. Cl. H04L 1/00 (2006.01); H04L 7/00 (2006.01); H04Q 11/00 (2006.01)
CPC H04L 1/0071 (2013.01) [H04L 1/0057 (2013.01); H04L 7/0075 (2013.01); H04Q 11/0062 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A data processing method, comprising:
receiving a data flow sent by an encoder side in a passive optical network (PON) system, wherein the data flow is a bit stream that is based on interleaving encoding of multiple forward error correction (FEC) codewords, wherein a first FEC codeword of the multiple FEC codewords comprises synchronization information, and wherein the synchronization information is distributed in the data flow based on a first permutation interval;
obtaining, from the data flow, first data information based on a first value interval and a first value length, wherein the first value interval is equal to the first permutation interval, and wherein the first value length is equal to a length of the synchronization information; and
performing, in response to a similarity between the first data information and the synchronization information exceeding a preset similarity threshold, de-interleaving on the data flow based on a start location of the first data information.