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1. (WO2017197856) DATA COMMUNICATION METHOD, APPARATUS AND SYSTEM

Pub. No.:    WO/2017/197856    International Application No.:    PCT/CN2016/105517
Publication Date: Fri Nov 24 00:59:59 CET 2017 International Filing Date: Sat Nov 12 00:59:59 CET 2016
IPC: H04B 10/077
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: YIN, Jinrong
殷锦蓉
ZHAO, Dianbo
赵殿博
JING, Lei
景磊
Title: DATA COMMUNICATION METHOD, APPARATUS AND SYSTEM
Abstract:
Provided is a data communication method. The method comprises: a receiving device receiving, from each channel, a forward error correction codeword (FEC codeword) sent by a sending device; the receiving device obtaining a delay deviation of each channel; the receiving device parsing a data message from the FEC codeword to obtain a reception time when a first bit in the data message is received on each channel; the receiving device adjusting the reception time when the first bit in the data message is received on each channel according to the delay deviation of each channel; and the receiving device recombining received messages according to the adjusted reception time of the first bit in the data message, such that the delay measurement accuracy of each channel in a next-generation EPON system can reach a bit level.